In the ten-membered 1,3,4,6-tetra­hydro-2H-pyrido[1,2-a]pyrimidine ring system of the title compound, C17H15N5, the 1,2-di­hydro­pyridine ring is essentially planar (r.m.s. deviation = 0.001 Å), while the 1,3-diazinane ring has a distorted twist-boat conformation. In the crystal, mol­ecules are linked by N—H⋯N and C—H⋯N hydrogen bonds, forming a three-dimensional network. In addition, C—H⋯π inter­actions form layers parallel to the (100) plane. Thus, crystal-structure cohesion is ensured. According to a Hirshfeld surface study, H⋯H (40.4%), N⋯H/H⋯N (28.6%) and C⋯H/H⋯C (24.1%) inter­actions are the most important contributors to the crystal packing.

In the structure of the title compound, C22H22N4O4·C3H7NO·H2O, the entire tricyclic system is approximately planar except for the carbon atom bearing the two methyl groups; the meth­oxy­phenyl ring is approximately perpendicular to the tricycle. All seven potential hydrogen-bond donors take part in classical hydrogen bonds. The main mol­ecule and the DMF combine to form broad ribbons parallel to the a axis and roughly parallel to the ab plane; the water mol­ecules connect the residues in the third dimension.

The title compound, C22H18N2O12, was obtained as a by-product during the planned synthesis of 1,2-bis­(2-nitro-4,5-dimethyl phthalate)ethane by oxidative dimerization starting from dimethyl-4-methyl-5-nitro phthalate. To identify this compound unambiguously, a single-crystal structure analysis was performed. The asymmetric unit consists of half a mol­ecule that is located at a centre of inversion. As a result of symmetry restrictions, the mol­ecule shows an E configuration around the double bond. Both phenyl rings are coplanar, whereas the nitro and the two methyl ester groups are rotated out of the ring plane by 32.6 (1), 56.5 (2) and 49.5 (2)°, respectively. In the crystal, mol­ecules are connected into chains extending parallel to the a axis by pairs of C—H⋯O hydrogen bonds that are connected into a tri-periodic network by additional C—H⋯O hydrogen-bonding inter­actions.

In the title compound, C20H17BrO5S, mol­ecules are connected by inter­molecular C—H⋯S hydrogen bonds with R22(10) ring motifs, forming ribbons along the b-axis direction. C—H⋯π inter­actions consolidate the ribbon structure while van der Waals forces between the ribbons ensure the cohesion of the crystal structure. According to a Hirshfeld surface analysis, H⋯H (40.5%), O⋯H/H⋯O (27.0%), C⋯H/H⋯C (13.9%) and Br⋯H/H⋯Br (11.7%) inter­actions are the most significant contributors to the crystal packing. The thio­phene ring and its adjacent di­carboxyl­ate group and the three adjacent carbon atoms of the central hexene ring to which they are attached were refined as disordered over two sets of sites having occupancies of 0.8378 (15) and 0.1622 (15). The thio­phene group is disordered by a rotation of 180° around one bond.

The title compound (C14H23N3S, common name: cis-jasmone 4-ethyl­thio­semicarbazone) was synthesized by the equimolar reaction of cis-jasmone and 4-ethyl­thio­semicarbazide in ethanol facilitated by acid catalysis. There is one crystallographically independent mol­ecule in the asymmetric unit, which shows disorder of the terminal ethyl group of the jasmone carbon chain [site-occupancy ratio = 0.911 (5):0.089 (5)]. The thio­semicarbazone entity [N—N—C(=S)—N] is approximately planar, with the maximum deviation of the mean plane through the N/N/C/S/N atoms being 0.0331 (8) Å, while the maximum deviation of the mean plane through the five-membered ring of the jasmone fragment amounts to −0.0337 (8) Å. The dihedral angle between the two planes is 4.98 (7)°. The mol­ecule is not planar due to this structural feature and the sp3-hybridized atoms of the jasmone carbon chain. Additionally, one H⋯N intra­molecular inter­action is observed, with graph-set motif S(5). In the crystal, the mol­ecules are connected through pairs of H⋯S inter­actions with R22(8) and R21(7) graph-set motifs into centrosymmetric dimers. The dimers are further connected by H⋯N inter­actions with graph-set motif R22(12), which are related by an inversion centre, forming a mono-periodic hydrogen-bonded ribbon parallel to the b-axis. The crystal structure and the supra­molecular assembly of the title compound are compared with four known cis-jasmone thio­semicarbazone derivatives (two crystalline modifications of the non-substituted form, the 4-methyl and the 4-phenyl derivatives). A Hirshfeld surface analysis indicates that the major contributions for the crystal cohesion are from H⋯H (70.7%), H⋯S/S⋯H (13.5%), H⋯C/C⋯H (8.8%), and H⋯N/N⋯H (6.6%) inter­faces (only the disordered atoms with the highest s.o.f. were considered for the evaluation).

The title compound, [Mo3(C9H18NS2)3(S2)3S]2S, crystallizes on a general position in the monoclinic space group P21/n (No. 14). The cationic [Mo3S7(S2CNiBu2)3]+ fragments are joined by a mono­sulfide dianion that forms close S⋯S contacts to each of the di­sulfide ligands on the side of the Mo3 plane opposite the μ32− ligand. The two Mo3 planes are inclined at an angle of 40.637 (15)°, which gives the assembly an open clamshell-like appearance. One μ6-S2−⋯S22− contact, at 2.4849 (14) Å, is appreciably shorter than the remaining five, which are in the range 2.7252 (13)–2.8077 (14) Å.

The asymmetric unit of the title compound, C25H18N6·H2O, comproses two mol­ecules (I and II), together with a water mol­ecule. The terminal phenyl groups attached to the methyl groups of the mol­ecules I and II do not overlap completely, but are approximately perpendicular. In the crystal, the mol­ecules are connected by N—H⋯N, C—H⋯N, O—H⋯N and N—H⋯O hydrogen bonds with each other directly and through water mol­ecules, forming layers parallel to the (001) plane. C—H⋯π inter­actions between these layers ensure the cohesion of the crystal structure. A Hirshfeld surface analysis indicates that H⋯H (39.1% for mol­ecule I; 40.0% for mol­ecule II), C⋯H/H⋯C (26.6% for mol­ecule I and 25.8% for mol­ecule II) and N⋯H/H⋯N (24.3% for mol­ecules I and II) inter­actions are the most important contributors to the crystal packing.

The title compound, C12H15N3O2S, adopts an E configuration with respect to the C=N bond. The propionate group adopts an anti­periplanar (ap) conformation. There are short intra­molecular N—H⋯N and C—H⋯O contacts, forming S(5) and S(6) ring motifs, respectively. In the crystal, mol­ecules are connected into ribbons extending parallel to [010] by pairs of N—H⋯S inter­actions, forming rings with R22(8) graph-set motifs, and by pairs of C—H⋯S inter­actions, where rings with the graph-set motif R21(7) are observed. The O atom of the carbonyl group is disordered over two positions, with a refined occupancy ratio of 0.27 (2):0.73 (2). The studied crystal consisted of two domains.

In the title compound, C19H17NO5S, the cyclo­hexene ring adopts nearly an envelope conformation. In the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds, forming a three-dimensional network. In addition, C—H⋯π inter­actions connect the mol­ecules by forming layers parallel to the (010) plane. According to the Hirshfeld surface analysis, H⋯H (36.9%), O⋯H/H⋯O (31.0%), C⋯H/H⋯C (18.9%) and S⋯H/H⋯S (7.9%) inter­actions are the most significant contributors to the crystal packing.

The crystal structures of 2-[1'-(carb­oxy­meth­yl)-4,4'-bi­pyridine-1,1'-diium-1-yl]acetate tetra­fluoro­borate, C14H13N2O4+·BF4− or (Hbcbpy)(BF4), and neutral 1,1'-bis­(carboxyl­atometh­yl)-4,4'-bi­pyridine-1,1'-diium (bcbpy), C14H20N2O8, are reported. The asymmetric unit of the (Hbcbpy)(BF4) consists of a Hbcbpy+ monocation, a BF4− anion, and one-half of a water mol­ecule. The BF4− anion is disordered. Two pyridinium rings of the Hbcbpy+ monocation are twisted at a torsion angle of 30.3 (2)° with respect to each other. The Hbcbpy monocation contains a carb­oxy­lic acid group and a deprotonated carboxyl­ate group. Both groups exhibit both a long and a short C—O bond. The cations are linked by inter­molecular hydrogen-bonding inter­actions between the carb­oxy­lic acid and the deprotonated carboxyl­ate group to give one-dimensional zigzag chains. The asymmetric unit of the neutral bcbpy consists of one-half of the bcbpy and two water mol­ecules. In contrast to the Hbcbpy+ monocation, the neutral bcbpy mol­ecule contains two pyridinium rings that are coplanar with each other and a carboxyl­ate group with similar C—O bond lengths. The mol­ecules are connected by inter­molecular hydrogen-bonding inter­actions between water mol­ecules and carboxyl­ate groups, forming a three-dimensional hydrogen-bonding network.

The synthesis, crystal structure, and a Hirshfeld surface analysis of tris­{N,N-diethyl-N'-[(4-nitro­phen­yl)(oxo)meth­yl]carbamimido­thio­ato}cobalt(III) conducted at 180 K are presented. The complex consists of three N,N-diethyl-N'-[(4-nitro­benzene)(oxo)meth­yl]carbamimido­thio­ato ligands, threefold sym­metric­ally bonded about the CoIII ion, in approximately octa­hedral coordination, which generates a triple of individually near planar metallacyclic (Co—S—C—N—C—O) rings. The overall geometry of the complex is determined by the mutual orientation of each metallacycle about the crystallographically imposed threefold axis [dihedral angles = 81.70 (2)°] and by the dihedral angles between the various planar groups within each asymmetric unit [metallacycle to benzene ring = 13.83 (7)°; benzene ring to nitro group = 17.494 (8)°]. The complexes stack in anti-parallel columns about the overline{3} axis of the space group (Poverline{3}), generating solvent-accessible channels along [001]. These channels contain ill-defined, multiply disordered, partial-occupancy solvent. Atom–atom contacts in the crystal packing predominantly (∼96%) involve hydrogen, the most abundant types being H⋯H (36.6%), H⋯O (31.0%), H⋯C (19.2%), H⋯N (4.8%), and H⋯S (4.4%).

The title compound, [Re(C17H22N3O2S)(CO)3] is a net neutral fac-Re(I)(CO)3 complex of the 4-methyl­biphenyl sulfonamide derivatized di­ethyl­enetri­amine ligand. The NNN-donor monoanionic ligand coordinates with the Re core in tridentate fashion, establishing an inner coordination sphere resulting in a net neutral complex. The complex possesses pseudo-octa­hedral geometry where one face of the octa­hedron is occupied by three carbonyl ligands and the other faces are occupied by one sp2 nitro­gen atom of the sulfonamide group and two sp3 nitro­gen atoms of the dien backbone. The Re—Nsp2 bond distance, 2.173 (4) Å, is shorter than the Re—Nsp3 bond distances, 2.217 (5) and 2.228 (6) Å, and is similar to the range reported for typical Re—Nsp2 bond lengths (2.14 to 2.18 Å).

The mol­ecular structure of tricarbon­yl[η4-6-exo-(tri­phenyl­phosphino)cyclo­hepta-2,4-dien-1-one]iron(0) tetra­fluoro­borate di­chloro­methane hemisolvate, [Fe(C28H22O4)(CO)3]BF4·0.5CH2Cl2, as determined by single-crystal X-ray diffraction is reported. The two independent tricarbon­yl[η4-6-exo-(tri­phenyl­phosphino)cyclo­hepta-2,4-dien-1-one] iron(0) cations and their corresponding anions form dimers, which constitute the asymmetric unit of the structure parallel to the (100) plane. Solid-state stability within that asymmetric unit as well as between neighboring dimeric units is afforded by C—H⋯O and C—H⋯F hydrogen bonds and C—H⋯π and Y—X⋯π (Y = B, C; X = F, O) inter­actions, which yield diperiodic sheets and a three-dimensional extended network.

The crystal structure of 1,2,3,4-tetra­hydro­isoquinolin-2-ium (2S,3S)-3-carb­oxy-2,3-di­hydroxy­propano­ate monohydrate, C9H12N+·C4H5O6−·H2O, at 115 K shows ortho­rhom­bic symmetry (space group P212121). The hydrogen tartrate anions and solvent water mol­ecules form an intricate diperiodic O—H⋯O hydrogen-bond network parallel to (001). The tetra­hydro­isoquinolinium cations are tethered to the anionic hydrogen-bonded layers through N—H⋯O hydrogen bonds. The crystal packing in the third direction is achieved through van der Waals contacts between the hydro­carbon tails of the tetra­hydro­isoquinolinium cations, resulting in hydro­phobic and hydro­philic regions in the crystal structure.

Tetra­kis(μ-acetato-κ2O:O')bis­{[1,3-bis­(2,6-diiso­propyl­phen­yl)imidazol-2-yl­idene-κC2]chromium(II)} tetra­hydro­furan disolvate, [Cr2(C2H3O2)4(C27H36N4)2]·2C4H8O or [Cr2(OAc)4(IDipp)2]·2C4H8O (1), and tetra­kis­(μ-acetato-κ2O:O')bis­{[1,3-bis­(2,4,6-tri­methyl­phen­yl)imidazol-2-yl­idene-κC2]chromium(II)}, {Cr2(C2H3O2)4(C21H24N2)2] or [Cr2(OAc)4(IMes)2] (2), were synthesized from anhydrous chromium(II) acetate [Cr2(OAc)4] and the corresponding NHC (NHC = N-heterocyclic carbene) in toluene as solvent. Both complexes crystallize in the triclinic system, space group Poverline{1}. The mol­ecular structures consist of Cr2(OAc)4 paddle-wheels that carry two terminal NHC ligands. This leads to a square-pyramidal coordination of the chromium atoms.

The compounds 2',3',4',6'-tetra-O-acetyl-β-d-gluco­pyranosyl N'-cyano-N-phenyl­carbamimido­thio­ate (C22H25N3O9S, 5a), 2',3',4',6'-tetra-O-acetyl-β-d-galacto­pyranosyl N'-cyano-N-phenyl­carbamimido­thio­ate, (C22H25N3O9S, 5b), 2',3',4',6'-tetra-O-acetyl-β-d-galacto­pyranosyl N'-cyano-N-methyl­carbamimido­thio­ate (C17H23N3O9S, 5c), and 2',3',4',6'-tetra-O-acetyl-β-d-galacto­pyranosyl N'-cyano-N-p-tolyl­carbamimido­thio­ate (C23H27N3O9S, 5d) all crystallize in P212121 with Z = 4. For all four structures, the configuration across the central (formal) C=N(CN) double bond of the carbamimido­thio­ate group is Z. The torsion angles C5—O1—C1—S (standard sugar numbering) are all close to 180°, confirming the β position of the substituent. Compound 5b involves an intra­molecular hydrogen bond N—H⋯O1; in 5c this contact is the weaker branch of a three-centre inter­action, whereas in 5a and 5d the H⋯O distances are much longer and do not represent significant inter­actions. The C—N bond lengths at the central carbon atom of the carbamimido­thio­ate group are almost equal. All C—O—C=O torsion angles of the acetyl groups correspond to a synperiplanar geometry, but otherwise all four mol­ecules display a high degree of conformational flexibility, with many widely differing torsion angles for equivalent groups. In the crystal packing, 5a, 5c and 5d form layer structures involving the classical hydrogen bond N—H⋯Ncyano and a variety of ‘weak’ hydrogen bonds C—H⋯O or C—H⋯S. The packing of 5b is almost featureless and involves a large number of borderline ‘weak’ hydrogen bonds. In an appendix, a potted history of wavelength preferences for structure determination is presented and it is recommended that, even for small organic crystals in non-centrosymmetric space groups, the use of Mo radiation should be considered.

The dinuclear mol­ecule of the title compound, [Mo2(C9H13)2(CO)6] or [Mo(tBuCp)(CO)3]2 where tBu and Cp are tert-butyl and cyclo­penta­dienyl, is centrosymmetric and is characterized by an Mo—Mo bond length of 3.2323 (3) Å. Imposed by inversion symmetry, the tBuCp and the carbonyl ligands are in a transoid arrangement to each other. In the crystal, inter­molecular C—H⋯O contacts lead to the formation of layers parallel to the bc plane.

In the structure of the title salt, {[Ba(μ3-C3H2N3O2)2(μ-H2O)(H2O)]·H2O}n, the barium ion and all three oxygen atoms of the water mol­ecules reside on a mirror plane. The hydrogen atoms of the bridging water and the solvate water mol­ecules are arranged across a mirror plane whereas all atoms of the monodentate aqua ligand are situated on this mirror plane. The distorted ninefold coord­ination of the Ba ions is completed with four nitroso-, two carbonyl- and three aqua-O atoms at the distances of 2.763 (3)–2.961 (4) Å and it is best described as tricapped trigonal prism. The three-dimensional framework structure is formed by face-sharing of the trigonal prisms, via μ-nitroso- and μ-aqua-O atoms, and also by the bridging coordination of the anions via carbonyl-O atoms occupying two out of the three cap positions. The solvate water mol­ecules populate the crystal channels and facilitate a set of four directional hydrogen bonds. The principal Ba–carbamoyl­cyano­nitro­somethanido linkage reveals a rare example of the inherently polar binodal six- and three-coordinated bipartite topology (three-letter notation sit). It suggests that small resonance-stabilized cyano­nitroso anions can be utilized as bridging ligands for the supra­molecular synthesis of MOF solids. Such an outcome may be anti­cipated for a broader range of hard Lewis acidic alkaline earth metal ions, which perfectly match the coordination preferences of highly nucleophilic nitroso-O atoms. Thermal analysis reveals two-stage dehydration of the title compound (383 and 473 K) followed by decomposition with release of CO2, HCN and H2O at 558 K.

The mol­ecular structure of the tripodal carbamoyl­methyl­phosphine oxide compound diethyl {[(5-[2-(di­eth­oxy­phosphor­yl)acetamido]-3-{2-[2-(di­eth­oxy­phos­phor­yl)acetamido]­eth­yl}pent­yl)carbamo­yl]meth­yl}phospho­nate, C25H52N3O12P3, features six intra­molecular hydrogen-bonding inter­actions. The phospho­nate groups have key bond lengths ranging from 1.4696 (12) to 1.4729 (12) Å (P=O), 1.5681 (11) to 1.5811 (12) Å (P—O) and 1.7881 (16) to 1.7936 (16) Å (P—C). Each amide group adopts a nearly perfect trans geometry, and the geometry around each phophorus atom resembles a slightly distorted tetra­hedron.

The asymmetric unit of the title salt, C7H8N3+·C7H5O6S−, comprises two 1,3-di­hydro-2H-benzimidazol-2-iminium cations and two 2-hy­droxy-5-sulfobenzoate anions (Z' = 2). In the crystal, the mol­ecules inter­act through N—H⋯O, O—H⋯O hydrogen bonds and C—O⋯π contacts. The hydrogen-bonding inter­actions lead to the formation of layers parallel to (overline{1}01). Hirshfeld surface analysis revealed that H⋯H contacts contribute to most of the crystal packing with 38.9%, followed by H⋯O contacts with 36.2%.

The title compound, (C9H8NO)[CuCl3(C7H5NO4)]·2H2O, was prepared by reacting CuII acetate dihydrate, solid 8-hy­droxy­quinoline (8-HQ), and solid pyridine-2,6-di­carb­oxy­lic acid (H2pydc), in a 1:1:1 molar ratio, in an aqueous solution of dilute hydro­chloric acid. The CuII atom exhibits a distorted CuO2NCl3 octa­hedral geometry, coordinating two oxygen atoms and one nitro­gen atom from the tridentate H2pydc ligand and three chloride atoms; the nitro­gen atom and one chloride atom occupy the axial positions with Cu—N and Cu—Cl bond lengths of 2.011 (2) Å and 2.2067 (9) Å, respectively. In the equatorial plane, the oxygen and chloride atoms are arranged in a cis configuration, with Cu—O bond lengths of 2.366 (2) and 2.424 (2) Å, and Cu—Cl bond lengths of 2.4190 (10) and 2.3688 (11) Å. The asymmetric unit contains 8-HQ+ as a counter-ion and two uncoordinated water mol­ecules. The crystal structure features strong O—H⋯O and O—H⋯Cl hydrogen bonds as well as weak inter­actions including C—H⋯O, C—H⋯Cl, Cu—Cl⋯π, and π–π, which result in a three-dimensional network. A Hirshfeld surface analysis indicates that the most important contributions to the crystal packing involving the main residues are from H⋯Cl/Cl⋯H inter­actions, contributing 40.3% for the anion. Weak H⋯H contacts contribute 13.2% for the cation and 28.6% for the anion.

The title compound, C18H21N3O3, was prepared from 1,3,5-benzene­tricarbonyl trichloride and cyclo­propyl­amine. Its crystal structure was solved in the monoclinic space group P21/c. In the crystal, the three amide groups of the mol­ecule are inclined at angles of 26.5 (1), 36.9 (1) and 37.8 (1)° with respect to the plane of the benzene ring. The mol­ecules are linked by N—H⋯O hydrogen bonds, forming two-dimensional supra­molecular aggregates that extend parallel to the crystallographic ab plane and are further connected by C—H⋯O contacts. As a result of the supra­molecular inter­actions, a propeller-like conformation of the title mol­ecule can be observed.

The asymmetric unit of the title compound, [Co(C8Br4O4)(C3H4N2)2(H2O)2]n or [Co(Br4bdc)(im)2(H2O)2]n, comprises half of CoII ion, tetra­bromo­benzene­dicarboxylate (Br4bdc2−), imidazole (im) and a water mol­ecule. The CoII ion exhibits a six-coordinated octa­hedral geometry with two oxygen atoms of the Br4bdc2− ligand, two oxygen atoms of the water mol­ecules, and two nitro­gen atoms of the im ligands. The carboxyl­ate group is nearly perpendicular to the benzene ring and shows monodentate coordination to the CoII ion. The CoII ions are bridged by the Br4bdc2− ligand, forming a one-dimensional chain. The carboxyl­ate group acts as an inter­molecular hydrogen-bond acceptor toward the im ligand and a coordinated water mol­ecule. The chains are connected by inter­chain N—H⋯O(carboxyl­ate) and O—H(water)⋯O(carboxyl­ate) hydrogen-bonding inter­actions and are not arranged in parallel but cross each other via inter­chain hydrogen bonding and π–π inter­actions, yielding a three-dimensional network.

In this work, we showed that the use of ethanol to increase image contrast when imaging cardiac tissue with synchrotron X-ray phase-contrast imaging (X-PCI) leads to heterogeneous tissue shrinkage, which has an impact on the 3D organization of the myocardium.

This work introduces a completely rewritten version of the program RMCProfile (version 7), big-box, reverse Monte Carlo modelling software for analysis of total scattering data. The major new feature of RMCProfile7 is the ability to refine multiple phases simultaneously, which is relevant for many current research areas such as energy materials, catalysis and engineering. Other new features include improved support for molecular potentials and rigid-body refinements, as well as multiple different data sets. An empirical resolution correction and calculation of the pair distribution function as a back-Fourier transform are now also available. RMCProfile7 is freely available for download at https://rmcprofile.ornl.gov/.

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Off-Ramp host John Rabe and Mayor Eric Garcetti playing backgammon in John’s car. Julian “The First Lady of Off-Ramp” Bermudez in the passenger seat with camera. ; Credit: Andrea Garcia

John Rabe’s last show coincides with Eric Garcetti’s inauguration for his second term as Mayor of Los Angeles. In John's car, the two talked about:

• The joys of exploring Los Angeles
• The time the future Mayor's mom and dad took his drivers' license away
• Where Justin Trudeau should visit when he comes to LA
• And how the drop in crime has led to more people doing the Off-Ramp thing

The Mayor also did some slam poetry, and then played a competitive game of backgammon. Listen with the audio player to see who was brown and who was white. And listen to Off-Ramp on the radio to find out who won the game! (Saturday at noon/Sunday at 6pm)

This content is from Southern California Public Radio. View the original story at SCPR.org.

Full Text:

Scientists have recovered the first genetic data from an extinct bird in the Caribbean, thanks to the remarkably preserved bones of a Creighton's caracara in a flooded sinkhole on Great Abaco Island in the Bahamas. Studies of ancient DNA from tropical birds have faced two formidable obstacles. Organic material quickly degrades when exposed to heat, light and oxygen. And birds' lightweight, hollow bones break easily, accelerating the decay of the DNA within. But the dark, oxygen-free depths of a 100-foot blue hole known as Sawmill Sink provided ideal preservation conditions for the bones of Caracara creightoni, a species of large carrion-eating falcon that disappeared soon after humans arrived in the Bahamas about 1,000 years ago. Florida Museum of Natural History researcher Jessica Oswald and her colleagues extracted and sequenced genetic material from the 2,500-year-old C. creightoni femur. Because ancient DNA is often fragmented or missing, the team had modest expectations for what they would find –- maybe one or two genes. But instead, the bone yielded 98.7% of the bird's mitochondrial genome, the DNA most living things inherit from their mothers. The mitochondrial genome showed that C. creightoni is closely related to the two remaining caracara species alive today: the crested caracara and the southern caracara. The three species last shared a common ancestor between 1.2 and 0.4 million years ago. "This project enhanced our understanding of the ecological and evolutionary implications of extinction, forged strong international partnerships, and trained the next generation of researchers," says Jessica Robin, a program director in National Science Foundation's Office of International Science and Engineering, which funded the study.

Image credit: Florida Museum photo by Kristen Grace

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Mastercard has entered into a partnership with Tap Payments to launch a Click to Pay with Payment Passkey service for optimised ecommerce transactions. 

The National Bank of Cambodia (NBC) has announced the launch of the Bakong Tourists App with Mastercard, with the institution aiming to optimise digital payments for tourists visiting Cambodia. 

A teen gets a dose of Pfizer's COVID-19 vaccine at Holtz Children's Hospital in Miami on May 18. Nearly 7 million U.S. teens and pre-teens (ages 12 through 17) have received at least one dose of a COVID-19 vaccine, so far, the CDC says.; Credit: Eva Marie Uzcategui/Bloomberg via Getty Images

It's been a little more than a month since adolescents as young as 12 became eligible in the United States to receive the Pfizer vaccine against COVID-19, and nearly all reports have been positive: The vaccine is very effective in this age group, and the vast majority of kids experience mild side effects, if any — the same sore arm or mild flu-like symptoms seen among adults who get the shot.

The Centers for Disease Control and Prevention has recommended that everyone 12-years-old and older get vaccinated against COVID-19, and the rollout is well underway: According to the CDC, nearly 7 million U.S. teens and pre-teens (ages 12 through 17) have received at least one dose of a COVID-19 vaccine, so far.

Still, soon after the FDA authorized the use of Pfizer's vaccine in young people, federal agencies began receiving reports of mild chest pain or other signs of possible heart inflammation (known as myocarditis) in a very small percentage of recently vaccinated teens.

CDC director Rochelle Walensky said at a White House briefing Friday that there have been more than 300 cases of heart inflammation reported among more than 20 million teens and young adults who have received one of the vaccines made by Moderna or Pfizer. She said that in the "vast majority" of cases, the inflammation went away.

An expert advisory committee to the health agency is expected to review the cases in more depth at a meeting Friday.

So, in the meantime, should parents of teens hesitate to have their kids vaccinated against COVID-19? Vaccine experts and the American Academy of Pediatrics say no, don't hesitate. It's good for doctors and patients to be aware that there might be a connection between the mRNA vaccines and heart inflammation, and to report to their pediatrician anything they see in that first week after vaccination. But it is also important, the CDC notes, to recognize that even if this does turn out to be an extremely rare side effect of the vaccine, "most patients who received care responded well to medicine and rest and quickly felt better." And the serious risks of COVID -19 — even for young healthy people — outweigh the risks of any possible side effects from the vaccine. Here are some questions you may have, and what's known:

What exactly is myocarditis?

Myocarditis is an inflammation of the heart muscle, and pericarditis, also being investigated, is an inflammation of the sac around the heart.

Long before the pandemic, thousands of cases of myocarditis were diagnosed in the U.S. and around the world each year, often triggered by the body's immune response to infections. SARS-CoV-2 can trigger it, and so can cold viruses, and staph and strep and HIV. Other causes include toxins and allergies.

Symptoms include chest pain and shortness of breath. It's often mild enough to go unnoticed, but a full-blown case in adults can cause arrhythmias and heart failure that require careful treatment with multiple medications, and several months of strict rest. In a case study of seven teenagers who got myocarditis following vaccination published last week in the journal Pediatrics, all seven got better after routine treatment with anti-inflammatory drugs.

Pediatric cardiologist Dr. Stuart Berger of the Northwestern University Feinberg School of Medicine, a spokesperson for the American Academy of Pediatrics, says vaccine-related myocarditis in teens is not all that worrisome. "Although they appear with some symptoms of chest pain, and maybe some findings on EKGs, all of the cases we've seen have been on the mild end of the spectrum," he says.

So, what's the concern?

Several hundred reports about the inflammation have been filed with the federal government's Vaccine Adverse Event Reporting System (VAERS); that's a repository of reports sent in by health professionals and patients about any health events they spot in the hours or days after vaccinations. Many of the events reported turn out to be coincidental — not caused by a vaccine. The database is just meant as a starting point for further investigation and not proof of cause and effect. But as NPR's Geoff Brumfiel noted this week, "when millions of people are vaccinated within a short period, the total number of these reported events can look big."

That said, anecdotes reported by doctors in medical journals and reports to VAERS suggest that both of the mRNA vaccines authorized for use in the U.S. — the Pfizer and Moderna vaccines — might slightly increase the incidence of myocarditis in young people. In 2003, a report in the New England Journal of Medicine estimated the background incidence of myocarditis to be 1.13 cases in 100,000 children per year.

Paul Offit, professor of pediatrics at the Children's Hospital of Philadelphia and a member of a Food and Drug Administration vaccine advisory committee says there likely is a causal link between the heart inflammation some doctors are seeing in these teens and the second dose of vaccine. "I think it's real," he says, but hastens to add that the effect is exceedingly small – based on the data collected so far, maybe one in 50,000 vaccinees between the ages of 16 and 39. "And the good news is at least so far it looks to be transient and self-resolving."

Still, maybe I should wait to get my teen vaccinated and see how this plays out?

Uhm, no, according to several vaccine experts contacted by NPR. And this is where a little math comes in handy.

"Take a stadium full of 100,000 people between the ages of 16 and 39, which is the subset that appears to be at greater risk," Offit says. "Vaccinate all of them, and two might get myocarditis." But if you don't vaccinate any of the 100,000, he estimates that about 1,300 would eventually get COVID-19. And those numbers are likely to increase this winter.

About one in 1,000 children who get COVID-19 have gone on to develop a condition called MIS-C (multisystem inflammatory syndrome in children), says Offit, and most of those kids have had some level of myocarditis. In addition, the new coronavirus has directly caused myocarditis in some children and adults. Which of the two stadiums in Offit's metaphor would have more cases of myocarditis — the vaccinated children or unvaccinated kids — is not known precisely. But Offit says he suspects it would be the unvaccinated group. And there's no doubt that 1,000 unvaccinated children would suffer more COVID-19-related illnesses. "A choice not to get a vaccine is not a choice to avoid myocarditis," he says. "It's a choice to take a different risk — and I would argue a more serious one" — of developing a bad case of COVID-19 or long-COVID or COVID-caused myocarditis.

Are the experts advising their own kids in this age group to get vaccinated?

Yes. "I understand people having concerns," says Dr. Judith Guzman-Cottrill. She's a parent and professor of pediatric infectious diseases at the Oregon Health and Science University, as well as the senior author on a small study that came out this month in the journal Pediatrics. In the report, Guzman-Cottrill and her colleagues analyzed the cases of seven boys around the country who developed myocarditis within four days of receiving the Pfizer-BioNTech vaccine.

She and her family recently faced the vaccination decision for her own 13-year-old daughter — and said a whole-hearted yes to the shot.

Guzman-Cottrill suspects there may turn out to be a slightly increased risk of heart inflammation from vaccination in young people, but she and her co-authors note in the Pediatrics report that a direct cause-and-effect connection — even in these seven cases — has yet to be established. And she's impressed that despite the millions of doses that have so far been delivered to teens, no clear and serious post-vaccination problems have shown up. "The emergency departments and urgent care clinics are not filled with teenagers complaining of chest pain," she says.

She's treated unvaccinated teens who developed severe myocarditis from an infection with the COVID-19 virus, and others who developed COVID-19 pneumonia and respiratory failure. Seeing those teens struggle — teens who lacked the powerful immune protection the vaccine provides — was enough for her to suggest vaccination to her daughter, who got her second vaccination earlier this week.

"She saw it as a pathway back to a normal post pandemic life," Guzman-Cottrill says.

And that's where public health comes in. "We really need a highly vaccinated student body when kids return to the classroom this fall," says Guzman-Cottrill, "so we don't see surges in COVID-19 cases."

Joanne Silberner, a former health policy correspondent for NPR, is a freelance journalist living in Seattle.

This content is from Southern California Public Radio. View the original story at SCPR.org.

The pandemic has taken a massive toll on people's mental health. But a new report by the U.S. Centers for Disease Control and Prevention confirms what many of us are seeing and feeling in our own lives: The impact has been particularly devastating for parents and unpaid caregivers of adults.

Two-thirds of survey respondents who identified as unpaid caregivers said they experienced mental health challenges during the pandemic, such as symptoms of anxiety or depression, or suicidal thoughts.

Only one-third of people with no caregiving responsibilities reported the same symptoms.

Of the more than 10,000 survey respondents, more than 40% identified as being unpaid caregivers.

"What is striking here is just how widespread unpaid caregiving responsibilities are in the population and how much of a burden and a toll these responsibilities" are having, says Shantha Rajaratnam, a co-author of the study and a psychologist at the Turner Institute of Brain and Mental Health at Monash University in Australia.

The study also found that people who care for both children under 18 and adults — many of them part of the sandwich generation — are faring the worst, with 85% of this group experiencing adverse mental health symptoms.

"It's an extremely important study," says psychologist Dolores Gallagher-Thompson, professor emeritus at Stanford University who has researched family caregivers and their challenges.

The study is the first to document the problems caregivers have experienced during COVID-19, she notes, and underscores "the importance of paying attention to caregiver issues, caregiver mental health" and the need for education and resources to better support them.

The contrast between caregivers and others is stark

The study, part of ongoing research by The COVID-19 Outbreak Public Evaluation (COPE) Initiative, is based on surveys conducted in December 2020 and February-March 2021.

More than half of those who identified as caregivers said they had experienced symptoms of anxiety or depression, or of disorders like PTSD related to the stress and trauma of COVID-19.

A significant number of caregivers said they had contemplated suicide. Nearly 40% reported having passive suicidal thoughts, meaning "wishing that they had gone to bed and didn't wake up," says study co-author Mark Czeisler, a graduate student at Monash University and a research trainee at Brigham and Women's Hospital in Boston.

And more than 30% had seriously considered taking their own life — about five times the number of noncaregivers, the study found.

Across the board, mental health impacts have been more severe for people who care for both children and adults. Half of this group said it had seriously considered suicide in the past month.

The pandemic worsened the challenges caregivers face

Even before the pandemic, being an unpaid caregiver was stressful and associated with a higher risk of mental health issues, says Gallagher-Thompson. The COVID-19 pandemic has made things even harder.

For instance, the pandemic has taken away many formal and informal sources of support for caregivers.

That was the case for Dr. Nicole Christian-Brathwaite. She's a Boston-based child psychiatrist and lives with her husband, her mother, her husband's father and two sons, who are 4 and 6.

Before the pandemic, her father-in-law, who has dementia, went to a day program for seniors with cognitive decline. Her mother, a survivor of breast and lung cancers, went to physical therapy twice a week, doctor appointments and met with friends.

When the pandemic hit, they lost those services and social support — at the same time Christian-Brathwaite and her husband began working from home while taking care of their sons and parents.

Life at home became much more complicated. Her sons developed behavioral problems with the transitions and stresses of the pandemic. Her mother struggled with chronic pain, and was hospitalized during the pandemic. And there were days when her father-in-law was confused, disoriented or aggressive.

"Many days I was walking around on edge waiting for something to happen because our entire setup was so very fragile and vulnerable," says Christian-Brathwaite. "It's been exhausting."

And her mental health has suffered. "I certainly was dealing with insomnia," she says. "I was short tempered. I was more irritable. I didn't have the same tolerance for things."

More support needed to help caregivers cope

The new study highlights the extent to which unpaid caregivers have struggled during the pandemic, says Gallagher-Thompson.

"There are some serious issues here that shouldn't be ignored," she says.

And yet caregivers are often ignored by the health system, which is set up to focus only on patients.

"Family members are rarely asked, 'How does this affect you? What is difficult? How can we help you? How can we support you in being able to carry out your role, your tasks, your responsibilities?'" Gallagher-Thompson says.

As the new study shows, support can make a big difference — respondents who could rely on others for help with caregiving had a lower incidence of mental health symptoms.

So it's important to educate and support caregivers. For example, physicians can start by screening their patients' caregivers for mental health symptoms and provide more resources to those who need it, says Gallagher-Thompson.

Christian-Brathwaite hopes the new study will help physicians recognize that family caregivers are just as important to consider while treating patients.

"We really need to take a step back and look at the village that's around them because our patients can't be successful without having the support from family," she says.

This content is from Southern California Public Radio. View the original story at SCPR.org.

Facemasks remain worn as firefighter paramedic Jorge Miranda, holding syringe, speaks with Eduardo Vasquez, who has lived homeless on the streets of Los Angeles since 1992, before administering the one-shot Johnson and Johnson' Janssen Covid-19 vaccine as part of outreach to the homeless by members of the Los Angeles Fire Department's Covid Outreach unit on June 14, 2021 in Los Angeles.; Credit: FREDERIC J. BROWN/AFP via Getty Images

In our continuing series looking at the latest medical research and news on COVID-19, Larry Mantle speaks with UCSF’s Dr. Peter Chin-Hong. 

Topics today include:

• Two weeks after reopening, LA County’s new COVID-19 cases have doubled

• CDC: Infected vaccinated people carry less COVID-19 virus

• Delta variant is now detected in all 50 states

• J&J: “At present, there is no evidence to suggest need for a booster dose to be administered”

• Novavax claims vaccine’s overall efficacy is 89.7%

• Another respiratory virus is spreading in the U.S.

• Curevac’s final trial show shot is far less effective than other vaccines

• Can we now live with the coronavirus?

• Israel scrambles to curb rising COVID-19 infection rates

• Is it time to rethink “one-size-fits-all” approach for masking?

Guest:

Peter Chin-Hong, M.D., infectious disease specialist and professor of medicine at the UCSF Medical Center; he tweets @PCH_SF

This content is from Southern California Public Radio. View the original story at SCPR.org.

Full Text:

A new study shows that the West Antarctic Peninsula is experiencing some of the most rapid climate change on Earth, featuring dramatic increases in temperatures, retreats in glaciers and declines in sea ice. The Southern Ocean absorbs nearly half of the carbon dioxide -- the key greenhouse gas linked to climate change -- that is absorbed by all the world's oceans. The study tapped an unprecedented 25 years of oceanographic measurements in the Southern Ocean and highlights the need for more monitoring in the region. The research revealed that carbon dioxide absorption by surface waters off the West Antarctic Peninsula is linked to the stability of the upper ocean, along with the amount and type of algae present. A stable upper ocean provides algae with ideal growing conditions. During photosynthesis, algae remove carbon dioxide from the surface ocean, which in turn draws carbon dioxide out of the atmosphere. From 1993 to 2017, changes in sea ice dynamics off the West Antarctic Peninsula stabilized the upper ocean, resulting in greater algal concentrations and a shift in the mix of algal species. That's led to a nearly five-fold increase in carbon dioxide absorption during the summertime. The research also found a strong north-south difference in the trend of carbon dioxide absorption. The southern portion of the peninsula, which to date has been less impacted by climate change, experienced the most dramatic increase in carbon dioxide absorption, demonstrating the poleward progression of climate change in the region.

Image credit: Drew Spacht/The Ohio State University

Source: Streetwise Reports 10/31/2024

Healthcare artificial intelligence (AI) company Treatment.com AI Inc. (TRUE:CSE; TREIF:OTCMKTS; 939:FRA) announced that it has closed a non-brokered private placement for aggregate gross proceeds of CA$1.95 million.

A total of 2,138,766 special warrants of the company were offered at CA$0.75 per special warrant with proceeds of CA$1.6 million. The company also said 466,666 units of the company were offered at CA$0.75 per unit for proceeds of CA$349,999.50.

The company said it intends to use the proceeds for working capital purposes.

"We are very encouraged by the support from our investors with their overwhelming response to the financing and the subsequent over-subscription," Chief Executive Officer Dr. Essam Hamza said. "This money will help expedite our aggressive growth plans over the next year."

Technical Analyst Clive Maund noted on October 9* that the outlook for the company is "outstandingly bright" because it has "positioned itself to revolutionize the healthcare industry using AI and advanced machine learning technologies."

The company "is set to transform the current archaic system so that no longer do patients have to sit for hours in waiting rooms to see a doctor or doctors, and doctors and other healthcare professionals have to suffer a crushing burden of often unnecessary patient visits and tedious repetitive bureaucracy," he wrote. "Treatment AI's platform will take care of most of it."

Healthcare Professionals Worldwide Contribute to AI Engine

Treatment.com AI said it is a company utilizing AI and best clinical practices with a goal to positively improve the healthcare sector and impact current inefficiencies and challenges.

With the input of hundreds of healthcare professionals globally, Treatment.com AI said it has built a comprehensive, personalized healthcare AI engine called the Global Library of Medicine (GLM). With more than 10,000 expert medical reviews, the GLM is designed to provide tested clinical information and support to all healthcare professionals, as well as providing recommended tests (physical and lab), X-rays, and billing codes.

According to the company, the GLM will help healthcare professionals (doctors, nurses, and pharmacists) reduce administrative burdens, creating more time for face-to-face patient appointments.

"AI is set to expedite and streamline the healthcare industry, making it vastly more efficient for the benefit of both healthcare professionals and patients," Maund noted.

The Catalyst: A 'Profound Transformation' in the Industry

AI has an important role to play in the healthcare offerings of the future, a 2019 report from the National Center of Biomechanical Medicine listed in the National Library of Medicine said. "In the form of machine learning, it is the primary capability behind the development of precision medicine, widely agreed to be a sorely needed advance in care."

Healthcare organizations are increasingly turning to the technology to address both clinical and administrative challenges. The combination of generative AI, as noted by Appinventiv in September, and operational tools like those developed by Treatment.com AI are driving this transformation.

Generative AI is "catalyzing a profound transformation within the healthcare industry" by generating synthetic data, predicting patient outcomes, and optimizing treatment plans, all of which revolutionize clinical decision-making processes, Appinventiv reported. This aligns with Treatment.com AI's announced collaboration with SPRYT on September 17 whereby integrating SPRYT’s AI receptionist "Asa" with its GLM has the goal of enhancing patient access to healthcare while reducing administrative burdens.

A CBC report from September 16 said real-world applications of AI in healthcare are already showing promising results. Dr. Muhammad Mamdani, co-author of a study on the topic, expressed optimism about AI's ability to "complement clinicians' own judgment and lead to better outcomes for fragile patients."

According to a report by Markets and Markets, the global AI in healthcare market in total was valued at US$20.9 billion this year and will reach an estimated US$148.4 billion by 2029, a compound annual growth rate (CAGR) of 48.1%.

"The growth of AI in the healthcare market is driven by the generation of large and complex healthcare datasets, the pressing need to reduce healthcare costs, improving computing power and declining hardware costs, and the rising number of partnerships and collaborations among different domains in the healthcare sector, and growing need for improvised healthcare services due to imbalance between healthcare workforce and patients," the report said.

Analyst: A 'Genuine Breakout Soon' for Stock

Maund said its stock charts are also looking "very positive indeed" for the company.

Of particular note is the big upleg late in June and early in July on persistent heavy volume, which broke the price clear above the May high and drove volume indicators steeply higher," the analyst noted. [OWNERSHIP_CHART-10594]

"This is very bullish price/volume action, especially as the volume indicators have not just held up but have actually advanced as the price has reacted back in a normal manner from the early July high to arrive at a support level where it has stabilized above the 200-day moving average in readiness for renewed advance, so the correction looks like a large bull Pennant that, as it is now closing up, promises renewed advance soon," continued Maund, who said holders should stay long and rated the stock a Strong Buy that "is thought worth going overweight on."

"The June-July rally must be classed as a 'preliminary' breakout," he noted. "But that said, the exceptionally bullish price/volume action of recent months does promise a genuine breakout soon that looks set to lead to a sustained and substantial uptrend."

Ownership and Share Structure

According to Sedi.ca, insiders own approximately 8% of Treatment.com AI. Retail investors own the remaining 92%.

The company has 48.84 million outstanding common shares and has 41.3 million free float traded shares.

As of October 31, the market cap is approximately CA$31.75 million. Over the past 52 weeks, the company traded between CA$0.355 and CA$1.11 per share.

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Important Disclosures:

1. Treatment.com AI has a consulting relationship with Street Smart an affiliate of Streetwise Reports. Street Smart Clients pay a monthly consulting fee between US$8,000 and US$20,000.
2. As of the date of this article, officers and/or employees of Streetwise Reports LLC (including members of their household) own securities of Treatment.com AI.
3. Steve Sobek wrote this article for Streetwise Reports LLC and provides services to Streetwise Reports as an employee.
4. This article does not constitute investment advice and is not a solicitation for any investment. Streetwise Reports does not render general or specific investment advice and the information on Streetwise Reports should not be considered a recommendation to buy or sell any security. Each reader is encouraged to consult with his or her personal financial adviser and perform their own comprehensive investment research. By opening this page, each reader accepts and agrees to Streetwise Reports' terms of use and full legal disclaimer. Streetwise Reports does not endorse or recommend the business, products, services or securities of any company.
5. This article does not constitute medical advice. Officers, employees and contributors to Streetwise Reports are not licensed medical professionals. Readers should always contact their healthcare professionals for medical advice.

For additional disclosures, please click here.

* Disclosure for quotes from the Clive Maund source October 9, 2024

1. For the quote (sourced on October 9, 2024), the Company has paid Street Smart, an affiliate of Streetwise Reports, US$1,500.
2. Author Certification and Compensation: [Clive Maund of clivemaund.com] is being compensated as an independent contractor by Street Smart, an affiliate of Streetwise Reports, for writing the article quoted. Maund received his UK Technical Analysts’ Diploma in 1989. The recommendations and opinions expressed in the article accurately reflect the personal, independent, and objective views of the author regarding any and all of the designated securities discussed. No part of the compensation received by the author was, is, or will be directly or indirectly related to the specific recommendations or views expressed.

Clivemaund.com Disclosures

The quoted article represents the opinion and analysis of Mr. Maund, based on data available to him, at the time of writing. Mr. Maund's opinions are his own, and are not a recommendation or an offer to buy or sell securities. As trading and investing in any financial markets may involve serious risk of loss, Mr. Maund recommends that you consult with a qualified investment advisor, one licensed by appropriate regulatory agencies in your legal jurisdiction and do your own due diligence and research when making any kind of a transaction with financial ramifications. Although a qualified and experienced stock market analyst, Clive Maund is not a Registered Securities Advisor. Therefore Mr. Maund's opinions on the market and stocks cannot be only be construed as a recommendation or solicitation to buy and sell securities.

( Companies Mentioned: TRUE:CSE; TREIF:OTCMKTS;939:FRA, )

Halima Aden attends the premiere of Netflix's Travis Scott: Look Mom I Can Fly at Barker Hangar on Aug. 27, 2019, in Santa Monica, Calif.; Credit: Rich Fury/Getty Images

For Halima Aden, the decision to walk away from a career as the world's first hijab-wearing supermodel was fairly clear cut. She's felt used for so long, she says — by the modeling industry and by UNICEF, the organization she was photographed by as a child in a refugee camp in Kenya and later served as an ambassador for.

Aden has been featured on the covers of Vogue, Elle and Allure magazines. And she walked the runway for Rihanna's Fenty Beauty and Kanye West's Yeezy.

She tells Morning Edition host Rachel Martin she wanted to be a role model for young girls while being true to herself, but she wasn't accomplishing either. Modeling, she realized, was in "direct conflict" with who she is.

"I'm not a cover girl, I'm Halima from Kakuma," she says. "I want to be the reason why girls have confidence within themselves, not the reason for their insecurity."

Aden was raised in the Kakuma refugee camp in northwestern Kenya. She and her family moved to Minnesota in 2004 when she was 7.

It was there her journey as a model began, competing for Miss Minnesota USA in 2016, seeking a scholarship. She finished in the semifinals, and says from there, modeling "fell from the sky" into her lap.

Interview Highlights

You saw [modeling] not just as a chance to wear gorgeous clothes and to have your photo in magazines but also as a way to help people.

Growing up in America, not seeing representation, not seeing anybody who dressed like me look like me, it did make me feel like, wow, what's wrong with me, you know? And I'm sure if I had if I would have had representation growing up, I would have been so much more confident to wear my hijab, to be myself, to be authentic. But to be that person, to grow up and be on the cover of magazines, I've covered everything from Vogue to Allure, some of the biggest publications in fashion. And yet I still couldn't relate personally to my own image because that's not who I really am. That's not how I really dress. That's not how my hijab really looks. And, you know, fashion, it can be a very creative field, and I completely appreciate that. But my hijab was just getting spread so thin that I knew I had to give it all away, give it up. I'm not a cover girl. I am Halima from Kakuma. I want to be the reason why girls have confidence within themselves, not the reason for their insecurity.

When you say your hijab was being kind of styled out of existence, what passed for a hijab as you were walking down those runways?

Everything. Oh, my goodness. I had jeans at one point on my head as a hijab. I had Gucci pants styled as a turban. It just didn't even make sense, and I felt so far removed from the image itself.

During the pandemic you decided to walk away from fashion and UNICEF. Was it a complicated decision?

I'll be honest with you, the feelings that I've had towards the fashion industry and UNICEF, it was just multiplying as the years went on, so it was just festering. You know, because the fashion industry is very known to use these young girls and boys while their young, age 14 to like 24, I think is the average career of a model. And then they just replace them and move on to a newer model. And same with UNICEF. They've been photographing me and using me since the time I was a baby in a refugee camp. I remember getting those headshots taken and it made me feel, it's very dehumanizing. And so I wanted to show UNICEF, too. How does it feel to be used? It's not a good feeling. And so let's stop using people.

What are you going to do [next]?

For me right now, I don't know what's next. And that's OK. That's OK, because I'm young and I have time to figure it out. And I'm grateful. I'm grateful to the people that I've met. I'm grateful to the agents that I worked with. I'm grateful for the experiences I was able to have these last four years. But at the same time, I just am also grateful that I don't have to do that anymore because it was in direct conflict with who I am as an individual, as a human being.

This content is from Southern California Public Radio. View the original story at SCPR.org.

Tim Cook, chief executive officer of Apple Inc., speaks during an event in 2018. Apple is one of 310 companies calling on the Biden administration to slash carbon emissions.; Credit: David Paul Morris/Bloomberg via Getty Images

More than 300 businesses have signed an open letter calling on the Biden administration to reduce greenhouse gas emissions in the United States to at least half of 2005 levels by 2030. That would nearly double a previous target set by former President Barack Obama in 2015, who pledged a 25 to 28% reduction by 2025.

The United States is not currently on track to meet either goal.

The signatories include some of largest companies in the United States, including Walmart, Apple, McDonald's and Starbucks. "A bold 2030 target is needed to catalyze a zero-emissions future, spur a robust economic recovery, create millions of well-paying jobs, and allow the U.S. to 'build back better' from the pandemic," the letter said, echoing the president's economic recovery slogan.

A 50% reduction target would put the Biden administration in line with what groups such as the United Nations and National Academies of Science say is necessary to mitigate the worst impacts of climate change.

In a March statement calling for the same reductions target, the environmental advocacy group Natural Resources Defense Council said such a plan would "help pull the country out of the pandemic-induced recession by putting millions of Americans to work" and inspire more ambitious international climate action ahead of a major United Nations climate conference this November.

Like President Joe Biden's campaign promise to guide the United States to carbon-neutrality by the middle of the century, a 50% emissions reduction target would require steeper emissions cuts than the country has ever achieved.

In 2019, greenhouse gas emissions were approximately 13% below 2005 levels, a decrease of just 1.8% from the previous year.

The Biden administration has identified climate action as one of its top four priorities and has named prominent, experienced Washington insiders, including former Secretary of State John Kerry and former EPA administrator Gina McCarthy, to oversee climate policy efforts at the White House.

As NPR's Danielle Kurtzleben has previously reported, activists on the left are cautiously optimistic about the administration's climate plan after expressing doubts about Biden's climate record during the Democratic primary.

Sunrise Movement, a youth-led climate group that champions the Green New Deal, gave candidate Biden's initial climate plan an "F" grade. Now, the group's executive director Varshini Prakash is publicly celebrating his administration's latest climate-focused $2 trillion infrastructure bill — including its commitment to spend 40% of the infrastructure plan's money on disadvantaged communities and launch a jobs program called the Civilian Climate Corps.

New York Democratic Rep. Alexandria Ocasio-Cortez told NPR earlier this month that she feels that Biden has ultimately come around to the side of progressives on climate issues. She said: "As much as I think some parts of the party try to avoid saying 'Green New Deal' and really dance around and try to not use that term, ultimately, the framework I think has been adopted."

The emphasis on climate comes as a sharp departure from the Trump administration, which withdrew the United States from the Paris Agreement and set no emissions reductions targets.

Signatories to the Paris deal, which Biden rejoined on the day he was sworn into office, are all required to set these targets — formally known as nationally determined contributions, or NDCs.

The agreement also encourages nations to revise their goals every five years, in hopes that the proposals become more ambitious as the cost of environmental reform goes down.

Since the Paris agreement was first agreed to in 2015, though, just fifty of the deal's nearly 200 signatories have submitted revised targets. A recent U.N. analysis of international climate action found that many countries were doing far too little to reduce emissions for the world to avoid the worst effects of climate change.

So far, the White House has not indicated exactly how ambitious their plan will be. An announcement is expected in the coming days as the White House prepares for its Earth Day climate summit with world leaders, scheduled for Thursday, April 22.

This content is from Southern California Public Radio. View the original story at SCPR.org.

• Providing services to children and families when children must be separated from their parents or caretakers when they are unable or unwilling to provide adequate protection and care and the child enters the legal custody and placement responsibility of social services. 

• Serving families, children, and our community by providing support and comprehensive family-centered, solution focused assessments and interventions that will support a parent’s capacity to protect and nurture their children. 

• Working cohesively with birth and resource families, children, guardian ad litems, court partners, community and in-agency partners, and other child welfare entities to support and strengthen families. 

• Striving for excellence in meeting all mandated standards in a fast-paced and mandated, but rewarding environment that ultimately seeks to assure child safety and develop and reinforce protective family units. 

In the country, autonomous mobility will probably mean robotic tractors rather than robotic cars, and if tractor maker Escorts has its way, they could get here sooner than thought.

Help shape the future of greenways and trails in Catawba County! Catawba County and the Carolina Thread Trail planners ask citizens to help with planning for the trail by taking an online survey.

Colonel Michael W. Gilchrist, Commander of the Highway Patrol, presented the awards to EMT Paramedic and Crew Chief Brad Harris and EMT Paramedic Eric Jones for their role in pulling a person from a burning vehicle.