Archives, Room Use Only - TK5613.C36 1900

Archives, Room Use Only - Z104.B84 1860

Archives, Room Use Only - HE7669.P55 1925

Archives, Room Use Only - KFP301.A3 1884

The police registered a case against a person for negligent act likely to spread disease, and not having a pass to enter Udupi district on May 8. Acco

Melting of the semicrystalline structure of native tapioca starch granules is correlated to solution viscosity for elucidating gelatinization and gelation processes.

The synthesis and crystal structure of the title PtII complex, [Pt(C23H16N)Cl(CH3CN)], based on the C,N-chelating 2,4,6-tri­phenyl­pyridine as the primary ligand, is described. The central PtII atom is in a distorted square-planar coordination environment. In the crystal, mol­ecules are arranged via a metallophilic inter­action between platinum atoms with a Pt⋯Pt contact of 7.052 (2) Å. In addition, a π–π inter­action occurs.

The PtII atom in the title complex, [Pt(C15H18N4O4S)(C2H6OS)], exists within a square-planar NS2O donor set provided by the N, S, O atoms of the di-anionic tridentate thio­semicarbazo ligand and a dimethyl sulfoxide S atom. The two chelate rings are coplanar, subtending a dihedral angle of 1.51 (7)°. The maximum deviation from an ideal square-planar geometry is seen in the five-membered chelate ring with an S—Pt—S bite angle of 96.45 (2)°. In the crystal, mol­ecules are linked via N—H⋯O, C—H⋯O, C—H⋯N and C—H⋯π inter­actions into two-dimensional networks lying parallel to the ab plane. The conformations of related cyclo­hexyl­hydrazine-1-carbo­thio­amide ligands are compared to that of the title compound.

In the title polymeric complex, {[FePt(CN)4(H2O)2]·2C3H6O}n, the FeII cation has an octa­hedral [FeN4O2] geometry being coordinated by two water mol­ecules and four cyanide anions. The Pt cation is located on an inversion centre and has a square-planar coordination environment formed by four cyanide groups. The tetra­cyano­platinate anions bridge the FeII cations to form infinite two-dimensional layers that propagate in the bc plane. Two guest mol­ecules of acetone per FeII are located between the layers. These guest acetone mol­ecules inter­act with the coordinated water mol­ecules by O—H⋯O hydrogen bonds.

The title compound, [FePt(C12H12O)(C18H15P)(C25H22P2)(CO)2]·2C7H8·CH2Cl2 or [(OC)2Fe(μ-dppm)(μ-C(=O)C(2,4,5-C6H2Me3)=CH)Pt(PPh3)], represents an example of a diphosphane-bridged heterobimetallic dimetalla­cyclo­pentenone complex resulting from a bimetallic activation of 1-ethynyl-2,4,5-tri­methyl­benzene and a metal-coordinated carbonyl ligand. The bridging μ2-C(=O)C(2,4,5-C6H2Me3)=CH unit (stemming from a carbon–carbon coupling reaction between CO and the terminal alkyne) forms a five-membered dimetalla­cyclo­pentenone ring, in which the C=C bond is π-coordinated to the Fe centre. The latter is connected to the Pt centre through a short metal–metal bond of 2.5770 (5) Å. In the crystal, the complex is solvated by one di­chloro­methane and two toluene mol­ecules.

Each central platinum(II) atom in the crystal structures of chlorido­[dihy­droxybis­(1-imino­eth­oxy)arsanido-κ3N,As,N']platinum(II), [Pt(C4H10AsN2O4)Cl] (1), and of chlorido­[dihy­droxybis­(1-imino­prop­oxy)arsanido-κ3N,As,N']platinum(II), [Pt(C6H14AsN2O4)Cl] (2), is coordinated by two nitro­gen donor atoms, a chlorido ligand and to arsenic, which, in turn, is coordinated by two oxygen donor ligands, two hydroxyl ligands and the platinum(II) atom. The square-planar and trigonal–bipyramidal coordination environments around platinum and arsenic, respectively, are significantly distorted with the largest outliers being 173.90 (13) and 106.98 (14)° for platinum and arsenic in (1), and 173.20 (14)° and 94.20 (9)° for (2), respectively. One intra­molecular and four classical inter­molecular hydrogen-bonding inter­actions are observed in the crystal structure of (1), which give rise to an infinite three-dimensional network. A similar situation (one intra­molecular and four classical inter­molecular hydrogen-bonding inter­actions) is observed in the crystal structure of (2). Various π-inter­actions are present in (1) between the platinum(II) atom and the centroid of one of the five-membered rings formed by Pt, As, C, N, O with a distance of 3.7225 (7) Å, and between the centroids of five-membered (Pt, As, C, N, O) rings of neighbouring mol­ecules with distances of 3.7456 (4) and 3.7960 (6) Å. Likewise, weak π-inter­actions are observed in (2) between the platinum(II) atom and the centroid of one of the five-membered rings formed by Pt, As, C, N, O with a distance of 3.8213 (2) Å, as well as between the Cl atom and the centroid of a symmetry-related five-membered ring with a distance of 3.8252 (12) Å. Differences between (2) and the reported polymorph [Miodragović et al. (2013). Angew. Chem. Int. Ed. 52, 10749–10752] are discussed.

BornAgain is a free and open-source multi-platform software framework for simulating and fitting X-ray and neutron reflectometry, off-specular scattering, and grazing-incidence small-angle scattering (GISAS). This paper concentrates on GISAS. Support for reflectometry and off-specular scattering has been added more recently, is still under intense development and will be described in a later publication. BornAgain supports neutron polarization and magnetic scattering. Users can define sample and instrument models through Python scripting. A large subset of the functionality is also available through a graphical user interface. This paper describes the software in terms of the realized non-functional and functional requirements. The web site https://www.bornagainproject.org/ provides further documentation.

The most widely used methods for calculating species extinction rates are "fundamentally flawed" and overestimate extinction rates by as much as 160 percent, life scientists report May 19 in the journal Nature.

The post Methods for calculating species extinction rates overestimate extinction, says Smithsonian scientist appeared first on Smithsonian Insider.

As the host of PBS’s “Scientific American Frontiers,” Alan Alda has interviewed scientists, physicists, neuroscientists, and academics. Forging a connection with these guests through freewheeling […]

The post Alan Alda: Relating Through Improvisation appeared first on Smithsonian Insider.

The environmental effects of oil and gas exploration and production on Alaska s North Slope have been accumulating for more than three decades, says a new report from the National Academies National Research Council.

A new study has combined measurements of carbon dioxide (CO2) fluxes with estimates of other greenhouse gas (GHG) emissions from farming operations for 15 European crop sites over several years. It estimated that the sites lost on average 138g of carbon per m2 per year. The total GHG balance (including non-CO2 emissions) was equivalent to an average carbon loss of 203g of carbon per m2 per year.

Around 40% of the platinum used in EU catalytic converters is not recovered for recycling and is therefore ‘lost’ forever, indicates a new study. A more circular economy for platinum is essential to reduce imports of this critical raw material to the EU and minimise its damaging effects on the environment, the researchers argue. Better collection systems for end-of-life catalytic converters and tighter regulation of waste exports could help close the loop on platinum.

Outputs of conservation planning research are likely to be translated into action more quickly and successfully if a transdisciplinary approach is adopted, according to a recent study. The researchers have applied a transdisciplinary framework 'pyramid of knowledge' to aid in understanding the process of converting research into action, which may also be applicable to other academic disciplines.

Marine diesel contains sulphur compounds, which generate sulphur oxide (SOx) pollution and acid rain. Ships can use mitigating technologies to reduce their SOx emissions, but these can also have a negative environmental impact. The International Maritime Organization (IMO) introduced stringent legislation to control these, aspects of which are incorporated into EU policy. This study examined the implications of the IMO’s policy and recommends a number of design solutions to help ships comply.

Large carnivores play important roles in ecosystems by regulating populations of herbivores and other species. Understanding how human activities affect the role of predators, particularly within human-modified systems such as agricultural landscapes, is therefore important. This study investigated how predator and prey populations were distributed in Transylvania, Romania, and assessed them in relation to human activities. The research highlights how relationships between large carnivores and people need to be considered as part of biodiversity conservation efforts, especially considering the successful recovery of several large carnivore populations within the EU.

A recent study has investigated the effectiveness of the EU concentration limit for Plant Protection Products (i.e., agricultural pesticides) in protecting groundwater ecosystems. For the majority of pesticides, the standard of 0.1 micrograms per litre for each individual pesticide was found to be sufficient, but this may not be the case for some insecticides.

Last week, my colleague Mariano Lizarraga Fernandez pointed me to the Washington post simulation of COVID-19 and we thought it would be interesting to implement something similar using MathWorks products.... read more >>

Government assistance appears to be crucial to keeping many from falling into housing insecurity

Women's cheeks get redder when they are the most fertile, but this color change is so subtle that it is undetectable by the human eye.

Meet the author, farmer, entrepreneur and leader of the local food movement as he shares his thoughts on modern farming and the needs of animals.

LivingHomes once again teams up with manufactured home heavyweight Cavco for a trio of low-ish-cost, high-quality green prefabs that have nothing to do with Mar

Plastic bag and film recycling can certainly come with a language barrier. Take this quiz to understand the vocabulary, and the world will thank you.

Project Haiti Orphanage and Children's Center will provide a safe and healthy home for Haitian children.

The company's Emeryville, California headquarters earns top green building honors.

Tour a LEED Platinum certified denim factory. The VDS Group factory in Bangladesh received LEED Platinum certification.

The building is the first major art and education facility to earn Platinum level LEED certification.

The eco-friendly boutique hotel is located in Napa Valley.

Fom Argentina to Mexico, solar in Latin America is likely to grow like gangbusters in the coming years.

This article discusses Atherosclerosis (narrowing of blood vessels) due to heavy metal poisoning and its treatment through chelation. Also, explains the factors based on which the chelating agents work.

Don't get taken on your first real estate deal. Learn how to calculate the real numbers when flipping real estate and how to really make money in real estate in any market condition.

Colombia-based Bodytech Corporation Unveils a New Era of Indoor Cycling for Its Members

The film illustrates the evolution of the sport as Latinos exploded onto the scene to dominate what was once considered the traditional all-white sport. The television release will be announced at a later date.

Humane Society Silicon Valley stands out as a transparent organization according to BBB Wise Giving Alliance and GuideStar

Terralogic DynaQuest announced today that they have achieved the status of Platinum for Citrix Partner Solutions.

A new paper in CRANIO Journal explains how the Sphenopalatine Ganglion is a common thread linking these disorders. Self-Administration of SPG Blocks and Neuromodulation on the Ganglion can dramtically improve patients quality of life.

The book is designed to help individuals and households making $75,000 to $400,000 in 2016.