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Researchers compile colorful on-line guide to marine algae of Panama

“Our guide celebrates the beauty of some of the most attractive inhabitants of Panama’s undersea realm and provides an indispensable, easy-to-use tool for their identification,” say the Littlers.

The post Researchers compile colorful on-line guide to marine algae of Panama appeared first on Smithsonian Insider.




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Slide Show: Smithsonian’s National Museum of Natural History is 100!

Since its doors first opened in 1910, the National Museum of Natural History has inspired curiosity and learning about the natural world and our place […]

The post Slide Show: Smithsonian’s National Museum of Natural History is 100! appeared first on Smithsonian Insider.




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Video: Smithsonian horticulturalist Janet Draper discusses the pollination of the pelican flower

Flowers are usually associated with butterflies, but not the Dutchman’s Pipe (Aristolochia grandiflora). This deciduous vine, native to Brazil, has large flowers that emit an odor of decaying flesh, which attracts flies and beetles.

The post Video: Smithsonian horticulturalist Janet Draper discusses the pollination of the pelican flower appeared first on Smithsonian Insider.




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Smithsonian scientists to help identify and eradicate invasive species in Alaskan waters

The Smithsonian Environmental Research Center in Edgewater, Md., and the Alaska Sea Grant Program of the University of Alaska, Fairbanks, were recently identified as the […]

The post Smithsonian scientists to help identify and eradicate invasive species in Alaskan waters appeared first on Smithsonian Insider.




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Online initiative makes massive database of herbarium specimens accessible worldwide

Now the Global Plants Initiativeis catapulting biodiversity research to a new level by sharing these historic plant collections in a massive online database of high-resolution scans.

The post Online initiative makes massive database of herbarium specimens accessible worldwide appeared first on Smithsonian Insider.




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With 800 color photographs, new book takes a fascinating look inside palms

The chief appeal of The Anatomy of Palms is some 800 color photographs that document the extent of palm anatomical diversity.

The post With 800 color photographs, new book takes a fascinating look inside palms appeared first on Smithsonian Insider.





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Fulcaldea stuessyi is newly discovered member of the Barnadesioideae, a subfamily of the Compositae, or sunflower family of flowering plants,

Fulcaldea stuessyi is a newly discovered member of the Barnadesioideae, a subfamily of the Compositae, or sunflower family of flowering plants. It was found in northeastern […]

The post Fulcaldea stuessyi is newly discovered member of the Barnadesioideae, a subfamily of the Compositae, or sunflower family of flowering plants, appeared first on Smithsonian Insider.




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VIDEO: 3-D scanning at the Smithsonian

What can you do to bring some of the Smithsonian’s 137 million objects to life? Put them in 3-D! This is a full-time job for […]

The post VIDEO: 3-D scanning at the Smithsonian appeared first on Smithsonian Insider.




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Dead Zones May Threaten Coral Reefs Worldwide

Dead zones affect dozens of coral reefs around the world and threaten hundreds more according to a new study by Smithsonian scientists published in the […]

The post Dead Zones May Threaten Coral Reefs Worldwide appeared first on Smithsonian Insider.




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Earth Optimism Video: Frogs

We can save frogs with science. Release trials in the wild begin this spring. On Earth Day weekend, the Smithsonian is convening the Earth Optimism […]

The post Earth Optimism Video: Frogs appeared first on Smithsonian Insider.




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Behind the scenes in the restaurant kitchen that feeds the National Zoo’s residents

“One cannot think well, love well, sleep well if one has not dined well,” Virginia Woolf once said. Woolf’s sentiment is one that the staff […]

The post Behind the scenes in the restaurant kitchen that feeds the National Zoo’s residents appeared first on Smithsonian Insider.




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The missing crystal structure in the series of N,N',N''-tris­(pyridin-2-yl)benzene-1,3,5-tricarboxamides: the 2-pyridinyl derivative

In the first reported crystal structure involving the potential ligand N,N',N''-tris­(2-pyridin­yl)-1,3,5-benzene­tricarboxamide, inter­molecular N—H⋯O hydrogen bonds link the mol­ecules via their amide groups into slanted ladder-like chains. Only two of the three amide groups in the mol­ecule are involved in hydrogen bonding, which influences the degree of out-of-plane twisting at each amide group.




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Crystal structure and characterization of a new copper(II) chloride dimer with meth­yl(pyridin-2-yl­methyl­idene)amine

The new copper(II) complex [CuLCl2]2, where L is a product of Schiff base condensation between methyl­amine and 2-pyridine­carbaldehyde, is built of discrete centrosymmetric dimers.




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Who's Who in Payments 2020 – Complete Overview of Key Payment Providers

Who’s Who in Payments – Complete Overview of Key Payment Providers encompasses key trends in the payments industry.




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Crystal structure and characterization of a new copper(II) chloride dimer with methyl(pyridin-2-ylmethylidene)amine

The new copper(II) complex, namely, di-μ-chlorido-bis{chlorido[methyl(pyridin-2-ylmethylidene)amine-κ2N,N']copper(II)}, [Cu2Cl4(C7H8N2)2], (I), with the ligand 2-pyridylmethyl-N-methylimine (L, a product of Schiff base condensation between methylamine and 2-pyridinecarbaldehyde) is built of discrete centrosymmetric dimers. The coordination about the CuII ion can be described as distorted square pyramidal. The base of the pyramid consists of two nitrogen atoms from the bidentate chelate L [Cu—N = 2.0241 (9), 2.0374 (8) Å] and two chlorine atoms [Cu—Cl = 2.2500 (3), 2.2835 (3) Å]. The apical position is occupied by another Cl atom with the apical bond being significantly elongated at 2.6112 (3) Å. The trans angles of the base are 155.16 (3) and 173.79 (2)°. The Cu...Cu separation in the dimer is 3.4346 (3) Å. In the crystal structure, the loosely packed dimers are arranged in stacks propagating along the a axis. The X-band polycrystalline 77 K EPR spectrum of (I) demonstrates a typical axial pattern characteristic of mononuclear CuII complexes. Compound (I) is redox active and shows a cyclic voltammetric response with E1/2 = −0.037 V versus silver–silver chloride electrode (SSCE) assignable to the reduction peak of CuII/CuI in methanol as solvent.




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The missing crystal structure in the series of N,N',N''-tris(pyridin-2-yl)benzene-1,3,5-tricarboxamides: the 2-pyridinyl derivative

In the first reported crystal structure involving the potential ligand N,N',N''-tris(pyridin-2-yl)benzene-1,3,5-tricarboxamide, C24H18N6O3, intermolecular N—H...O hydrogen bonds link the molecules via their amide groups into slanted ladder-like chains, in which the uprights of the ladder are formed by the hydrogen-bonding interactions and the benzene ring cores of the molecules act as the rungs of the ladder. Only two of the three amide groups in the molecule are involved in hydrogen bonding and this influences the degree of out-of-plane twisting at each amide group, with the twist being more significant for those amide groups participating in hydrogen bonds.




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Upgrading video card




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Doubt about Upgrading a lenovo ideacentre 300-20ish and GPU and CPU temeperature




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Suggestions upgrading RAM, video and sound for HP Pavilion 500-023w Win 8.1?




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Video conferencing on 24" iMac




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Absolute structure of the chiral pyrrolidine derivative (2S)-methyl (Z)-5-(2-tert-but­oxy-1-cyano-2-oxo­ethyl­idene)pyrrolidine-2-carboxyl­ate, a com­pound with low resonant scattering

The enanti­opure monopyrrolidine derivative (2S)-methyl (Z)-5-(2-tert-but­oxy-1-cyano-2-oxo­ethyl­idene)pyrrolidine-2-carboxyl­ate, C13H18N2O4, (1), represents a potential ligand and an attractive inter­mediate for the synthesis of chiral metal com­plexes. At the mol­ecular level, the com­pound features an intra­molecular N—H⋯O hydrogen bond; neighbouring mol­ecules inter­act via N—H⋯N contacts to form chains along [100]. Due to its elemental com­position, resonant scattering of the target com­pound is entirely insignificant for diffraction experiments with Mo Kα and small even for Cu Kα radiation. A preliminary study with the harder radiation type confirmed the chiral space group and the suitability of the single crystal chosen; as expected, the results concerning the absolute structure remained com­pletely inconclusive. A second data collection with the longer wavelength gave satisfactory quality indicators for the correct handedness of the mol­ecule, albeit with high standard uncertainties. The absolute configuration has been assessed independently: CD spectra for both enanti­omers of the target mol­ecule were calculated and the spectrum for the S-configured stereoisomer was in agreement with the experiment. The Cotton effect of (1) may be ascribed to π–π* transitions from HOMO to LUMO and from HOMO to LUMO+1. As both independent techniques agree with respect to the handedness of the target mol­ecule, the absolute structure may be assigned with a high degree of confidence.




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Synthesis of N-substituted 3-(2-aryl-2-oxoeth­yl)-3-hy­droxy­indolin-2-ones and their conversion to N-substituted (E)-3-(2-aryl-2-oxo­ethyl­idene)indolin-2-ones: synthetic sequence, spectroscopic characterization and structures of

An operationally simple and time-efficient approach has been developed for the synthesis of racemic N-substituted 3-(2-aryl-2-oxoeth­yl)-3-hy­droxy­indolin-2-ones by a piperidine-catalysed aldol reaction between aryl methyl ketones and N-alkyl­isatins. These aldol products were used successfully as strategic inter­mediates for the preparation of N-substituted (E)-3-(2-hetaryl-2-oxo­ethyl­idene)indolin-2-ones by a stereoselective dehydration reaction under acidic conditions. The products have all been fully characterized by 1H and 13C NMR spectroscopy, by mass spectrometry and, for a representative selection, by crystal structure analysis. In each of (RS)-1-benzyl-3-hy­droxy-3-[2-(4-meth­oxy­phen­yl)-2-oxoeth­yl]indolin-2-one, C24H21NO4, (Ic), and (RS)-1-benzyl-3-{2-[4-(di­methyl­amino)­phen­yl]-2-oxoeth­yl}-3-hy­droxy­indolin-2-one, C25H24N2O3, (Id), inversion-related pairs of mol­ecules are linked by O—H⋯O hydrogen bonds to form R22(10) rings, which are further linked into chains of rings by a combination of C—H⋯O and C—H⋯π(arene) hydrogen bonds in (Ic) and by C—H⋯π(arene) hydrogen bonds in (Id). The mol­ecules of (RS)-1-benzyl-3-hy­droxy-3-[2-oxo-2-(pyridin-4-yl)eth­yl]indolin-2-one, C22H18N2O3, (Ie), are linked into a three-dimensional framework structure by a combination of O—H⋯N, C—H⋯O and C—H⋯π(arene) hydrogen bonds. (RS)-3-[2-(Benzo[d][1,3]dioxol-5-yl)-2-oxoeth­yl]-1-benzyl-3-hy­droxy­indolin-2-one, C24H19NO5, (If), crystallizes with Z' = 2 in the space group Poverline{1} and the mol­ecules are linked into com­plex sheets by a combination of O—H⋯O, C—H⋯O and C—H⋯π(arene) hydro­gen bonds. In each of (E)-1-benzyl-3-[2-(4-fluoro­phen­yl)-2-oxo­ethyl­idene]indolin-2-one, C23H16FNO2, (IIa), and (E)-1-benzyl-3-[2-oxo-2-(thiophen-2-yl)ethylidene]indolin-2-one, C21H15NO2S, (IIg), the mol­ecules are linked into simple chains by a single C—H⋯O hydrogen bond, while those of (E)-1-benzyl-3-[2-oxo-2-(pyridin-4-yl)ethyl­idene]indolin-2-one, C22H16N2O2, (IIe), are linked by three C—H⋯O hydrogen bonds to form sheets which are further linked into a three-dimensional structure by C—H⋯π(arene) hydrogen bonds. There are no hydrogen bonds in the structures of either (E)-1-benzyl-3-[2-(4-meth­oxy­phen­yl)-2-oxo­ethyl­idene]indolin-2-one, C24H19NO3, (IIc), or (E)-1-benzyl-5-chloro-3-[2-(4-chloro­phen­yl)-2-oxo­ethyl­idene]indolin-2-one, C23H15Cl2NO2, (IIh), but the mol­ecules of (IIh) are linked into chains of π-stacked dimers by a combination of C—Cl⋯π(arene) and aromatic π–π stacking inter­actions.




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7-Iodo-5-aza-7-deazaguanine ribonucleoside: crystal structure, physical properties, base-pair stability and functionalization

The positional change of nitro­gen-7 of the RNA constituent guanosine to the bridgehead position-5 leads to the base-modified nucleoside 5-aza-7-de­aza­guanosine. Contrary to guanosine, this mol­ecule cannot form Hoogsteen base pairs and the Watson–Crick proton donor site N3—H becomes a proton-acceptor site. This causes changes in nucleobase recognition in nucleic acids and has been used to construct stable `all-purine' DNA and DNA with silver-mediated base pairs. The present work reports the single-crystal X-ray structure of 7-iodo-5-aza-7-de­aza­guanosine, C10H12IN5O5 (1). The iodinated nucleoside shows an anti conformation at the glycosylic bond and an N conformation (O4'-endo) for the ribose moiety, with an anti­periplanar orientation of the 5'-hy­droxy group. Crystal packing is controlled by inter­actions between nucleobase and sugar moieties. The 7-iodo substituent forms a contact to oxygen-2' of the ribose moiety. Self-pairing of the nucleobases does not take place. A Hirshfeld surface analysis of 1 highlights the contacts of the nucleobase and sugar moiety (O—H⋯O and N—H⋯O). The concept of pK-value differences to evaluate base-pair stability was applied to purine–purine base pairing and stable base pairs were predicted for the construction of `all-purine' RNA. Furthermore, the 7-iodo substituent of 1 was functionalized with benzo­furan to detect motional constraints by fluorescence spectroscopy.




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LaTe1.82(1): modulated crystal structure and chemical bonding of a chalcogen-deficient rare earth metal polytelluride

Crystals of the rare earth metal polytelluride LaTe1.82(1), namely, lanthanum telluride (1/1.8), have been grown by molten alkali halide flux reactions and vapour-assisted crystallization with iodine. The two-dimensionally incommensurately modulated crystal structure has been investigated by X-ray diffraction experiments. In contrast to the tetra­gonal average structure with unit-cell dimensions of a = 4.4996 (5) and c = 9.179 (1) Å at 296 (1) K, which was solved and refined in the space group P4/nmm (No. 129), the satellite reflections are not compatible with a tetra­gonal symmetry but enforce a symmetry reduction. Possible space groups have been derived by group–subgroup relationships and by consideration of previous reports on similar rare earth metal polychalcogenide structures. Two structural models in the ortho­rhom­bic superspace group, i.e. Pmmn(α,β,1 over 2)000(−α,β,1 over 2)000 (No. 59.2.51.39) and Pm21n(α,β,1 over 2)000(−α,β,1 over 2)000 (No. 31.2.51.35), with modulation wave vectors q1 = αa* + βb* + 1 over 2c* and q2 = −αa* + βb* + 1 over 2c* [α = 0.272 (1) and β = 0.314 (1)], have been established and evaluated against each other. The modulation describes the distribution of defects in the planar [Te] layer, coupled to a displacive modulation due to the formation of different Te anions. The bonding situation in the planar [Te] layer and the different Te anion species have been investigated by density functional theory (DFT) methods and an electron localizability indicator (ELI-D)-based bonding analysis on three different approximants. The temperature-dependent electrical resistance revealed a semiconducting behaviour with an estimated band gap of 0.17 eV.




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Polymorphism and phase transformation in the dimethyl sulfoxide solvate of 2,3,5,6-tetra­fluoro-1,4-di­iodo­benzene

A new polymorph (form II) is reported for the 1:1 dimethyl sulfoxide solvate of 2,3,5,6-tetra­fluoro-1,4-di­iodo­benzene (TFDIB·DMSO or C6F4I2·C2H6SO). The structure is similar to that of a previously reported polymorph (form I) [Britton (2003). Acta Cryst. E59, o1332–o1333], containing layers of TFDIB mol­ecules with DMSO mol­ecules between, accepting I⋯O halogen bonds from two TFDIB mol­ecules. Re-examination of form I over the temperature range 300–120 K shows that it undergoes a phase transformation around 220 K, where the DMSO mol­ecules undergo re-orientation and become ordered. The unit cell expands by ca 0.5 Å along the c axis and contracts by ca 1.0 Å along the a axis, and the space-group symmetry is reduced from Pnma to P212121. Refinement of form I against data collected at 220 K captures the (average) structure of the crystal prior to the phase transformation, with the DMSO mol­ecules showing four distinct disorder com­ponents, corresponding to an overlay of the 297 and 120 K structures. Assessment of the inter­molecular inter­action energies using the PIXEL method indicates that the various orientations of the DMSO mol­ecules have very similar total inter­action energies with the molecules of the TFDIB framework. The phase transformation is driven by inter­actions between DMSO mol­ecules, whereby re-orientation at lower temperature yields significantly closer and more stabilizing inter­actions between neighbouring DMSO mol­ecules, which lock in an ordered arrangement along the shortened a axis.




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Spider-Man returns to Marvel: A short history of the webslinger on film

An image from a teaser for Marvel Comics' 2015 "Civil War," part of crossover "Secret Wars." Could Spidey appear in the new Captain America: Civil War film now that Marvel and Sony have worked out a deal?; Credit: Marvel

Mike Roe

Spider-Man is coming home to join the rest of the Marvel movie family (um, except for the Fantastic Four and the X-Men) in upcoming films under a new deal struck between Sony, the home for Spider-Man movies, and Disney's Marvel Studios, home of Iron Man and the Avengers

It's been a bumpy road for Spidey for almost a decade, but now he's set to be part of the largely critically and financially successful Marvel Cinematic Universe films. He's already made history, and he could make more history soon. 

Here's a brief history of cinematic Spider-Man, looking ahead to his new adventures with Marvel's large and growing stable of movie superheroes.

Coming out of the superhero dark ages

Spider-Man was one of the catalysts for the current superhero movie boom. Superhero films were seen as potentially dead following the bomb of "Batman & Robin" with George Clooney, a critical failure and a mixed bag commercially.

Marvel dipped its toes in superhero movies with 1998's "Blade," which was a big hit, followed by 2000's "X-Men," but they both tried to distance themselves from their comic book source material (and the Joel Schumacher Batman movies) by putting their heroes in black leather and grounding them as much as possible in real-life aesthetics.

Sony's first "Spider-Man" movie came out in 2002 and showed that there was still room for an optimistic comic book take. The Sam Raimi-directed film also had a huge cultural impact as one of the first big summer movies following 9/11 — an early teaser that showed Spidey trapping bad guys between the two towers had to be pulled following the disaster.

Spider-Man 9/11 trailer

The movie ended up pulling in almost $822 million at the box office, including almost $404 million domestically, helmed by genre director Raimi, who had previously been best known for the horror-comedy "Evil Dead" films.

Spider-Man trailer

Tobey Maguire surprised as the star, pulling off the nerdy, earnest Peter Parker while also being believable enough as an action star in the Spider-Man suit. Maguire starred alongside Kirsten Dunst as love interest Mary Jane and Willem Dafoe as the villainous Green Goblin, and the film included the not-yet-a-superstar James Franco as Harry Osborn and now-Oscar-nominated J.K. Simmons as Daily Bugle publisher J. Jonah Jameson.

A sequel, 2004's "Spider-Man 2," continued the success of the first, with only a slight dip in overall box office while proving that the first film's success wasn't just a flash in the pan, that there was room for a relatively bright superhero in a dark time.

Spider-Man 2 trailer

Maguire almost ducked out of filming during negotiations, complaining of back pains following injuries while filming "Seabiscuit," and Jake Gyllenhaal almost stepped into the role — but Maguire recovered and held onto his spot. The escapist entertainment of superhero movies was starting to take hold in a growing way, but the superhero train was about to come off the rails for a few years.

The twilight of Tobey Maguire

As "Spider-Man 2" was hitting theaters, 2004 also brought "The Punisher," "Blade: Trinity" and "Catwoman," none of which showed superheroes as particularly promising movie saviors.

Marvel turned out more superhero movies that weren't loved by critics, including "Elektra," "Fantastic Four" and "X-Men: The Last Stand," though the latter two still did well at the box office (all were released by 20th Century Fox). DC Comics made the critical and commercial hit "Batman Begins" in 2005, but stumbled in 2006 with the underperforming "Superman Returns."

In 2007, "Spider-Man 3" dropped, and while it did great at the box office — it was the series' most popular film worldwide, though it dipped domestically — it was slammed by fans and critics. They took that Spider-Man optimism and tried making him emo, while overstuffing the bad guys — going from one villain in the previous films and upping it to three — and turning the campy dialogue up to 11.

Spider-Man 3 trailer

Trying to be 'Amazing' in a new superhero era

While Spidey stumbled, the next year Marvel released its first film from its own studio, the groundbreaking "Iron Man." It showed that you could make a franchise from a hero who was big in the comics but didn't have the same mainstream recognition.

It revitalized Robert Downey Jr.'s career and put Marvel Studios on the map, with a post-credits sequence laying the seeds for completely tying the films together in a way that hadn't been done on this scale ever before.

While Marvel started to crank up their self-produced film, Spider-Man lay dormant. Eventually, it was decided to reboot the character with Andrew Garfield taking over the role in 2012's "The Amazing Spider-Man." It scored the lowest domestic take of the series, while still excelling overseas.

Amazing Spider-Man 2 trailer 1

Sony quickly followed up with a sequel, while announcing their own plans to ape Marvel and try to create their own cinematic universe.

Amazing Spider-Man 2 villains trailer

The second "Amazing Spider-Man" movie set up other potential villains, and holding off the payoff of what exactly happened to Peter Parker's parents as Marvel tried to stretch Spider-Man into a female-led film, one focused on the villains, a movie led by Spidey character Venom and more.

Amazing Spider-Man first 10 minutes

The sequel showed diminishing returns, though, and plans for further sequels and spinoffs began to seem up in the air.

Hacked

In the midst of the Sony hack, documents revealed that Sony and Marvel had been negotiating over Marvel using Spider-Man in its own films — despite Sony having the rights to the character in perpetuity as long as they kept producing films, a deal worked out before Marvel had the resources and the belief in their own filmmaking capabilities. Still, the documents also showed that the talks had fallen apart, and hopes for Spider-Man appearing with Iron Man, Captain America, Thor and the rest of his Marvel friends appeared dim.

Then, Monday, Marvel shocked everyone by announcing that Spider-Man was coming home and would be part of the Marvel Cinematic Universe after all. There had been reports that they'd wanted Spider-Man for the third Captain America film, and with that film set for 2016, that may still happen. They also pushed back four of their "Phase Three" movies to make room in 2017 for a new "Spider-Man" movie, with reports indicating that the movie will feature a new actor taking over and Andrew Garfield getting pushed aside.

Spider-Man comes home

Andrew Garfield will likely go down in comics movie history as the right guy at the wrong time. He was a likable lead with a strong supporting cast, but Marvel looks ready to turn the page. Those on the Marvel side have previously indicated they'd avoid doing another origin story, so we'll probably skip seeing Uncle Ben killed to inspire Peter Parker once again.

"The new relationship follows a decade of speculation among fans about whether Spider-Man – who has always been an integral and important part of the larger Marvel Universe in the comic books – could become part of the Marvel Universe on the big screen," Marvel said in the announcement of the new deal.

Fans online have been largely ecstatic over the announcement of Marvel getting control of the character. Reports indicate that Sony still gets final say over Spider-Man, but that they're letting Marvel take the creative lead. Marvel also announced the possibility that other Marvel characters could appear in future Spider-Man films.

While Sony's Amy Pascal stepped down as the motion picture head of Sony following the hacking scandal and its associated public embarrassments, she's staying on as a producer — including co-producing the next Spider-Man film with Marvel creative film leader Kevin Feige.

Some fans have also asked for an even bigger step away from the traditional Spider-Man by introducing Miles Morales, the popular half-black/half-hispanic Spider-Man from an alternate universe in the comics, but the official Marvel press release does mention Peter Parker, and Marvel executives have previously taken a strong stance against moving away from Parker as the secret identity.

Still, as Badass Digest's Devin Faraci notes, the executive who'd taken the strongest stance against Miles Morales — Avi Arad — isn't mentioned in the press release about the new film, so maybe Marvel will surprise fans once again. Also, relations have apparently been icier between Marvel and Fox, with fans speculating that Marvel is trying to ice out the X-Men and the Fantastic Four from their comics — but if the companies could work out a deal to use those heroes in a Marvel Cinematic Universe film, it could prove to be an even bigger surprise.

The new Spider-Man film is set for July 28, 2017, and he may appear in another Marvel film sooner.

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




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An efficient method for indexing grazing-incidence X-ray diffraction data of epitaxially grown thin films

A method is described for indexing grazing-incidence X-ray diffraction data of epitaxially grown thin films comprising various crystal orientations and/or polymorphs by measuring reciprocal-lattice vectors.




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Don’t mix sodium hydride with polar aprotic solvents

Combining sodium hydride with some solvents can be a bad idea, as a group of researchers from Corteva Agriscience and Dow Chemical remind the chemistry community in Organic Process Research & Development ,(2019, DOI: 10.1021/acs.oprd.9b00276). Reports of explosions from combining NaH with a polar aprotic solvent such as dimethyl sulfoxide (DMSO), N,N-dimethylformamide (DMF), and N,N-dimethylacetamide […]

The post Don’t mix sodium hydride with polar aprotic solvents appeared first on CENtral Science.




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Verimi, Scrive team up to expand digital identity in Europe

(The Paypers) Scrive, a Nordic e-sign and eID services provider, and



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HID Global completes acquisition of De La Rue's identity business

(The Paypers) HID Global, an identity solutions company, has completed the acquisition of the...




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IdentityMind, Acuant partnership to boost digital identity proofing

(The Paypers) Acuant, a global identity verification solutions provider, has teamed up with



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Child care advocates hold hopes high for new bill to unionize providers

Child care provider Antonia Rivas leads children in yoga at her Reseda home on Feb. 13. Senate President Pro Tem Kevin de Leon is introducing a bill to fund child care and provider training, and set up a structure to facilitate collective bargaining for family child care workers.; Credit: File Photo: Maya Sugarman/KPCC

Deepa Fernandes

Senate President Pro Tem Kevin de Leon is introducing a new bill on Wednesday that aims to address the state's critical child care shortage and give providers the right to unionize.

The lack of sufficient child care has been statewide. In Los Angeles County, a recent study found only 2 percent of infants and toddlers have access to a licensed child care facility; for preschoolers, it's about 40 percent.

The shortage is most acute in low-income areas, and the bill aims to inject more child care vouchers into the system so poor families can have free child care.

A more controversial provision, however, would allow collective bargaining for those who provide child care in their homes whose earnings can fall near or below the minimum wage. Child advocates cite poor pay as a major reason why providers often leave the field.

“The turnover in the child care field is approaching 30 percent. So the lack of continuity and quality care is a major obstacle,” said El Cerrito Mayor Mark Friedman.

Friedman co-chairs a coalition of early childhood groups called Raising California Together. Preschool advocacy groups, anti-poverty and immigrant groups, NAACP, and the Santa Monica school district count among its members.

“I think one thing everybody agrees on as a high priority is getting more resources in the system, and if there is a strong union presence in the field that then there will be a stronger voice for those additional resources,” said Friedman. 

Under the bill,  a network of 32,000 home childcare providers statewide could unionize. Currently, providers operate as independent business owners and typically lack the right to organize and collectively bargain for wages.

Finding child care

For many families, having a quality child care option is their most pressing need.

Vicky Montoya, a Reseda mother of three, is desperate for a child care alternative to family members. Montoya’s 18-month-old son, Esteban, is a bright-eyed toddler who loves balls. He can fling one clear across a room, even a field. But all too often, when both his parents are at work, he’s not doing much.

“Sometimes he’s with an aunt, sometimes with my eldest daughter,” Montoya said in Spanish. “But he doesn’t really do anything, all he does is watch cartoons on TV. And he’s alone, there’s no other children around.”

Montoya works five hours a day at a solar company, where she makes $10 an hour. Her family depends on her income to supplement her husband’s low-wage, full-time job. Montoya applied for a child care voucher so Esteban could go to a properly licensed day care. She submitted two applications to a local agency over the last two months.

When she called the agency to find out the status of her applications, she said she wasn't given much information. “'You are on the waiting list,'” she said they told her, “'and there are people ahead of you.'”

Seeking unions as a solution

In Maryland, unionized providers reduced the wait list for poor families by 80 percent by securing state dollars to fund more free child care slots. According to a 2010 report by the National Women's Law Center, 14 states guarantee home-based child care workers the right to unionize.

SEIU Local 99 spokesperson Terry Carter said what local providers tell her is that they want a seat at the table where child care decisions are made.

“What collective bargaining would do for providers is it would let them sit down with the top decision makers in the state and say these are things that are simple to fix, they would vastly improve our ability to operate our businesses and they would give us the time to direct more of our attention and energies into raising California’s kids,” Carter said.  

Some of those issues include delayed government payments for subsidized child child and the low reimbursement rate from the state for serving low-income kids.

Antonia Rivas, a Reseda child care provider, knows well the struggle of providing care in her home. She infuses yoga and meditation into daily lessons, and buys organic food, her major expense.

But she also has to pay her assistants, buy toys, books, and supplies. After her costs, she said there is not much left.

“I just got my 2014 W-2 and it's $24,000,” Rivas said. Her W-2 comes from the agency that pays her for the low-income kids she serves. Add to that the $15,000 from her private paying families and Rivas pulled in about $40,000 last year. After expenses, she estimates she netted less than the minimum wage for her time.

Rivas said with her low wages and delays in receiving payments from government agencies for subsidized child care, she is constantly relying on credit to keep her business running.

“We need to get a contract [and] better pay,” Rivas said.

Even if the child care legislation passes, a contract with the state would be a long way down the road. All child care providers would need to vote on whether they want union representation. And, if all that is successful, child care providers could then negotiate a labor contract.

Similar bills granting child care providers the right to unionize have made it out of the legislature, but both Gov. Arnold Schwarzenegger and Gov. Jerry Brown have vetoed them.

Opponents have called the effort to organize providers a move to empower labor unions, not fix a broken child care system. 

Recent legal rulings are also presenting challenges to unions seeking to organize both child care workers and health care workers. The U.S. Supreme Court ruled last year in an Illinois case that home health workers could opt out of paying union dues, even though they are paid with state subsidies.

While Vicky Montoya waits for a better solution for her son's care, she pays Esteban’s aunt or a neighbor $10 a day to watch him while she works.

“I know lots of families who have to leave their children with a babysitter, usually just a woman who watches the child. But they are not trained and even their homes are not suitable for childcare,” she said. 

Correction: A previous version of this story erroneously described a U.S. Supreme Court case as originating in Minnesota. 

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




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NuLegacy Gold Receives Strong Vote of Confidence in Value of Its Flagship Red Hill Project in Nevada's Cortez Trend

Source: Peter Epstein for Streetwise Reports   05/07/2020

Peter Epstein of Epstein Research looks into the Gross Overriding Royalty that just changed hands on the company's flagship Red Hill project, and discusses what it means for the firm.

In late April, Metalla Royalty & Streaming acquired two royalties, one of which was a Gross Overriding Royalty (GOR) on NuLegacy Gold Corporation (NUG:TSX.V; NULGF:OTCQX) flagship Red Hill project, a Carlin-style deposit in Nevada's world-famous Cortez trend.

To be clear, this was a transaction between Metalla and a private company; no cash or other remuneration flowed to NuLegacy. However, this news is still exciting and thought provoking as it pertains to a potential (implied) valuation of Red Hill. So much so, that—CEO/director of Finance and Marketing—Albert Matter put out this press release highlighting it. {corporate presentation}

Metalla's news is applicable to NuLegacy for a number of reasons. Let me start by saying I know the Metalla team, I've written about the company several times (although not recently).

This is a smart, hard-working, market-savvy group, with global experience, integrity and expertise. When dealing in streams and royalties, it's all about industry connections, market knowledge and deal flow. Metalla has that and is up to its eyeballs in deal flow (deals it can make or pass on).

Takeaways on implied valuation of NuLegacy's Red Hill project?

That's why this news is so interesting. It represents a reliable, unbiased vote of confidence in NuLegacy's Red Hill project. I was able to track down the president, CEO and a director of Metalla, Mr. Brett Heath, to ask him about his team's view of NuLegacy, their management and technical teams, and the Red Hill project,

"The Red Hill project is very interesting due to its location & position within the Cortez trend of Nevada that hosts globally significant mines & projects, specifically Cortez Hills, Pipeline & Goldrush. Although many near-surface deposits have been discovered, several blind deposits similar to Goldrush have yet to be found.

"NuLegacy's Rift Anticline is a promising new drill target, a chance to discover a large, high-grade deposit. The close proximity of Red Hill to Goldrush heavily influenced our understanding of the geology at Red Hill. Specifically, it allowed us to better understand that the Rift Anticline has similar stratigraphy to Goldrush, and similar mineralization events nearby."

Investors, shareholders and analysts are trying to figure out what (if any) read-throughs there are in terms of the valuation of the Red Hill project.

From the press release:

"Valuing Gross Overriding Royalties ("GORs") is a complicated business made easier in this instance by the straightforward nature of the [transaction] …. prorating the US$4 million purchase price for the total of 2% GOR that was acquired…. values a 1% GOR in the Red Hill project at ~US$2 million."

What this valuation exercise boils down to is how does the value of a 1% GOR compare to a conventional working interest in the same project? GORs are highly case specific, so I will give a range of possibilities. Many factors make GORs unique, but a rule of thumb is that a 1% GOR equates to a 5% working interest.

However, due to the unknown terms of this particular GOR, let's assume that the 1% GOR is equal to between a 5% and 10% working interest. By extending the range higher than 5%, more conservative valuations for Red Hull are obtained. In the chart below one can see that the implied ~US$2 million paid for a 1% GOR equals C$2.8 million at the current exchange rate.

Therefore, Red Hill's indicative valuation could be viewed as C$28 million to C$56 million, or C$0.08 to C$0.15 per share. Currently, the stock's trading at C$0.07. The company has a cash balance of C$4.5 million. {see corporate presentation}. I believe the C$0.08 to C$0.15/share range is conservative because Metalla's purchase of the GOR had a built-in profit expectation. The true ascribed value of a 1% GOR on the Red Hill project might be higher than C$2.8 million.

A true vote of confidence in NuLegacy Gold

Perhaps more important than an implied (subjective) valuation of Red Hill are the following takeaways. First, Metalla not only likes Red Hill, it must also feel good about the long-term prospects for Nevada and the U.S. Metalla looks at hundreds of deals a year from all over the world. Management can, and does, invest in dozens of jurisdictions.

Yet, in April 2020, it chose the U.S., …. Nevada …. the Cortez Trend…. Second, it chose a project that's pre-maiden resource. Remember, Metalla has paid out ~C$2.8 million, but doesn't make a penny of that back unless it re-sells some or all of the GOR it acquired, or Red Hill reaches commercial production. Therefore, I argue that investing at this relatively early stage is a stamp of approval in the extensive work done to date at Red Hill.

That Metalla chose to deploy capital in a gold asset rather than a silver asset, despite the gold-silver ratio being near an all-time high (over 110 to 1) seems promising. Finally, it chose the U.S. at a time when the currencies of Mexico, Australia, Canada and others have weakened considerably vs. the U.S. dollar, making exploration cheaper in those countries. One must have conviction to choose Red Hill over dozens of public and private, pre-maiden resource, projects around the globe.

In the end, a good project in a great jurisdiction is only as prospective as its technical/management teams. NuLegacy has prudently advanced Red Hill in good times and bad. For most of NuLegacy's existence, the gold price traded between about $1,050 and $1,400/oz.

Gold price at $1,730/oz. is a game-changer….

Now gold is hovering around $1,730/oz after almost touching $1,800/oz in March. This is a game-changer for juniors like NuLegacy that have tremendous blue-sky potential, (look at neighboring mines and development projects, some of the best on the planet) but like most juniors, have limited funding to conduct aggressive drill programs in a strong gold price environment.

A savvy company betting on the Red Hill project is yet another indication that the time has come for precious metal players to become more active in M&A.

The day that Barrick commits its deep experience (and deep pockets!) to NuLegacy's Red Hill, all royalties held on that project would soar in value. Why? The timeline to potential production would be shortened, perhaps by years, (more drilling, less investor hand holding, perhaps skipping a PEA or a PFS). The scope of the project would become larger—more drilling across a wider footprint (a 108 sq. km land package).

The value of the royalties could double, triple, quadruple…. who knows? The share price at which NuLegacy gets taken out could also be meaningfully stronger. After all the company has been through, I don't think the Board would sell the company below C$0.30/share. At least not with the gold price at $1,730/oz (or higher). Readers are reminded that C$1.5 billon OceanaGold Corp. & giant natural resources fund Tocqueville own a combined 21.5% of the company.

Might there be a bidding war for NuLegacy?

In a best case example then, there could be multiple bidders for NuLegacy. This is not nearly as crazy as it sounds, especially if the gold price keeps going up, or if the next (fully funded) drill program hits the mark. If Barrick were to make a move, OceanaGold, Newmont, or even Tocqueville (they could hold out for higher price) might have something to say about it.

Those entities, and/or other mid-tiers/majors in Nevada or around the world would keep Barrick honest. Over the years NuLegacy has been in touch with several well-known names, but I never know who they're talking with at any given time. Make no mistake, Barrick is best positioned by virtue of having the most synergies with Red Hill, so it can afford to pay several more pennies per share if need be. That's how a share price of C$0.30+ becomes possible.

Bottom line, NuLegacy Gold (TSX-V: NUG) / (OTCQX: NULGF) is a high-risk exploration play, but I believe a good speculation. There's no better time to be buying high-risk exploration than when the prices of the metals being explored for are moving up.

As more attention is drawn to NuLegacy, its team, the undisputed safety of Nevada, the prolific nature of the Cortez Trend, etc., I think there's compelling relative and absolute value here that readers should consider investigating further.

Corporate Presentation

Peter Epstein is the founder of Epstein Research. His background is in company and financial analysis. He holds an MBA degree in financial analysis from New York University's Stern School of Business.

Sign up for our FREE newsletter at: www.streetwisereports.com/get-news

Disclosures: The content of this article is for information only. Readers fully understand and agree that nothing contained herein, written by Peter Epstein of Epstein Research [ER], (together, [ER]) about NuLegacy Gold, including but not limited to, commentary, opinions, views, assumptions, reported facts, calculations, etc. is not to be considered implicit or explicit investment advice. Nothing contained herein is a recommendation or solicitation to buy or sell any security. [ER] is not responsible under any circumstances for investment actions taken by the reader. [ER] has never been, and is not currently, a registered or licensed financial advisor or broker/dealer, investment advisor, stockbroker, trader, money manager, compliance or legal officer, and does not perform market making activities. [ER] is not directly employed by any company, group, organization, party or person. The shares of NuLegacy Gold are highly speculative, not suitable for all investors. Readers understand and agree that investments in small cap stocks can result in a 100% loss of invested funds. It is assumed and agreed upon by readers that they will consult with their own licensed or registered financial advisors before making any investment decisions.

At the time this article was posted, NuLegacy Gold was an advertiser on [ER] and Peter Epstein owned shares in the Company.

Readers understand and agree that they must conduct their own due diligence above and beyond reading this article. While the author believes he's diligent in screening out companies that, for any reasons whatsoever, are unattractive investment opportunities, he cannot guarantee that his efforts will (or have been) successful. [ER] is not responsible for any perceived, or actual, errors including, but not limited to, commentary, opinions, views, assumptions, reported facts & financial calculations, or for the completeness of this article or future content. [ER] is not expected or required to subsequently follow or cover events & news, or write about any particular company or topic. [ER] is not an expert in any company, industry sector or investment topic.

Streetwise Reports Disclosure:
1) Peter Epstein's disclosures are listed above.
2) The following companies mentioned in the article are billboard sponsors of Streetwise Reports: None. Click here for important disclosures about sponsor fees. The information provided above is for informational purposes only and is not a recommendation to buy or sell any security.
3) Statements and opinions expressed are the opinions of the author and not of Streetwise Reports or its officers. The author is wholly responsible for the validity of the statements. The author was not paid by Streetwise Reports for this article. Streetwise Reports was not paid by the author to publish or syndicate this article. Streetwise Reports requires contributing authors to disclose any shareholdings in, or economic relationships with, companies that they write about. Streetwise Reports relies upon the authors to accurately provide this information and Streetwise Reports has no means of verifying its accuracy.
4) The article does not constitute investment advice. Each reader is encouraged to consult with his or her individual financial professional and any action a reader takes as a result of information presented here is his or her own responsibility. By opening this page, each reader accepts and agrees to Streetwise Reports' terms of use and full legal disclaimer. This article is not a solicitation for 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. Streetwise Reports does not endorse or recommend the business, products, services or securities of any company mentioned on Streetwise Reports.
5) From time to time, Streetwise Reports LLC and its directors, officers, employees or members of their families, as well as persons interviewed for articles and interviews on the site, may have a long or short position in securities mentioned. Directors, officers, employees or members of their immediate families are prohibited from making purchases and/or sales of those securities in the open market or otherwise from the time of the interview or the decision to write an article until three business days after the publication of the interview or article. The foregoing prohibition does not apply to articles that in substance only restate previously published company releases. As of the date of this article, officers and/or employees of Streetwise Reports LLC (including members of their household) own securities of Metalla Royalty & Streaming and Newmont Goldcorp, companies mentioned in this article.

Graphics provided by the author.

( Companies Mentioned: NUG:TSX.V; NULGF:OTCQX, )




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