Microbes help unlock phosphorus for plant growth
(University of Washington) A research team led by the University of Washington and Pacific Northwest National Laboratory has shown that microbes taken from trees growing beside pristine mountain-fed streams in Western Washington could make phosphorus trapped in soils more accessible to agricultural crops. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - November 24, 2020 Category: Biology Source Type: news
Azerbaijani forces use white phosphorus over Karabakh
BEIRUT, LEBANON (11:20 P.M.) - The Azerbaijani forces reportedly used white phosphorus munitions over the Karabakh region on Friday,... (Source: Reuters: Health)
Source: Reuters: Health - October 30, 2020 Category: Consumer Health News Source Type: news
CdPS3 nanosheets-based membrane with high proton conductivity enabled by Cd vacancies
We report a class of membranes assembled with two-dimensional transition-metal phosphorus trichalcogenide nanosheets, in which the transition-metal vacancies enable exceptionally high ion conductivity. A Cd0.85PS3Li0.15H0.15 membrane exhibits a proton conduction dominant conductivity of ~0.95 siemens per centimeter at 90° Celsius and 98% relative humidity. This performance mainly originates from the abundant proton donor centers, easy proton desorption, and excellent hydration of the membranes induced by cadmium vacancies. We also observed superhigh lithium ion conductivity in Cd0.85PS3Li0.3 and Mn0.77PS3Li0.46 membran...
Source: ScienceNOW - October 29, 2020 Category: Science Authors: Qian, X., Chen, L., Yin, L., Liu, Z., Pei, S., Li, F., Hou, G., Chen, S., Song, L., Thebo, K. H., Cheng, H.-M., Ren, W. Tags: Materials Science, Physics reports Source Type: news
Enhanced fire safety of rigid polyurethane foam via synergistic effect of phosphorus/nitrogen compounds and expandable graphite - Liu C, Zhang P, Shi Y, Rao X, Cai S, Fu L, Feng Y, Wang L, Zheng X, Yang W.
In order to explore highly efficient flame-retardant rigid polyurethane foam (RPUF), phosphorus/nitrogen compounds and expandable graphite (EG) were successfully incorporated into RPUF by a free one-spot method. The combustion results showed that the fire ... (Source: SafetyLit)
Source: SafetyLit - October 27, 2020 Category: International Medicine & Public Health Tags: Burns, Electricity, Explosions, Fire, Scalds Source Type: news
Current state of drug analysis in Japanese emergency departments: a nationwide survey - Otani N, Hifumi T, Kitamoto T, Kobayashi K, Nakaya N, Tomioka J.
AIM: In 1999, the Japanese Society for Clinical Toxicology proposed 15 toxicants that would be useful for analysis: methanol, barbiturates, benzodiazepines, bromovalerylurea, tricyclic acid, acetaminophen, salicylic acid, theophylline, organic phosphorus p... (Source: SafetyLit)
Source: SafetyLit - October 27, 2020 Category: International Medicine & Public Health Tags: Alcohol and Other Drugs Source Type: news
Design of higher valency in covalent organic frameworks
We report a strategy for making COFs with valency 8 (cubes) and "infinity" (rods). The linker 1,4-boronophenylphosphonic acid—designed to have boron and phosphorus as an isoelectronic combination of carbon-group elements—was condensed into a porous, polycubane structure (BP-COF-1) formulated as (–B4P4O12–)(–C6H4–)4. It was characterized by x-ray powder diffraction techniques, which revealed cubes linked with phenyls. The isoreticular forms (BP-COF-2 to 5) were similarly prepared and characterized. Large single crystals of a constitutionally isomeric COF (BP-COF-6), composed of ...
Source: ScienceNOW - October 22, 2020 Category: Science Authors: Gropp, C., Ma, T., Hanikel, N., Yaghi, O. M. Tags: Chemistry, Materials Science, Online Only r-articles Source Type: news
Black phosphorus composites with engineered interfaces for high-rate high-capacity lithium storage
We report use of black phosphorus (BP) as the active anode for high-rate, high-capacity Li storage. The formation of covalent bonds with graphitic carbon restrains edge reconstruction in layered BP particles to ensure open edges for fast Li+ entry; the coating of the covalently bonded BP-graphite particles with electrolyte-swollen polyaniline yields a stable solid–electrolyte interphase and inhibits the continuous growth of poorly conducting Li fluorides and carbonates to ensure efficient Li+ transport. The resultant composite anode demonstrates an excellent combination of capacity, rate, and cycling endurance. (Source: ScienceNOW)
Source: ScienceNOW - October 8, 2020 Category: Science Authors: Jin, H., Xin, S., Chuang, C., Li, W., Wang, H., Zhu, J., Xie, H., Zhang, T., Wan, Y., Qi, Z., Yan, W., Lu, Y.-R., Chan, T.-S., Wu, X., Goodenough, J. B., Ji, H., Duan, X. Tags: Chemistry, Materials Science r-articles Source Type: news
Phosphorus deficit may disrupt regional food supply chains
(Stockholm University) Phosphorus-based fertilizer is essential in modern agriculture. In regions with high population growth, more phosphorus will be needed to produce more food. A new study shows that world regions with high population growth rates are also the regions with the highest phosphorus deficit. It also quantifies the environmental impact of a business-as-usual scenario in the phosphorus supply chain to 2050 and identifies alarming rates of pollution and greenhouse gas emissions associated with the phosphorus supply. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - October 7, 2020 Category: Biology Source Type: news
Burosumab Is a'Game Changer,' Effective in All Subgroups of XLH Burosumab Is a'Game Changer,' Effective in All Subgroups of XLH
As in the overall phase 3 trial population, 24 weeks of burosumab treatment improved serum phosphorus and key measures of pain and stiffness in subgroups of adults with this rare form of inherited rickets.Medscape Medical News (Source: Medscape Orthopaedics Headlines)
Source: Medscape Orthopaedics Headlines - September 22, 2020 Category: Orthopaedics Tags: Diabetes & Endocrinology News Source Type: news
Derivatization and rapid GC-MS screening of chlorides relevant to the Chemical Weapons Convention in organic liquid samples - Kuitunen ML, Altamirano JC, Siegenthaler P, Taure TH, H äkkinen VA, Vanninen PS.
A simple derivatization technique was developed for the analysis of seven Schedule 3 chemicals and one Schedule 2 chemical listed in the Chemical Weapons Convention (CWC). Phosgene, phosphorus oxychloride, phosphorus trichloride, phosphorus pentachloride, ... (Source: SafetyLit)
Source: SafetyLit - September 17, 2020 Category: International Medicine & Public Health Tags: Burns, Electricity, Explosions, Fire, Scalds Source Type: news
Global warming threatens soil phosphorus, says a soil scientist from RUDN University
(RUDN University) A soil scientist from RUDN University found out that the resources of organic phosphorus in the soils of the Tibetan Plateau could be depleted because of global warming. To do so, he compared phosphorus content in the soils from the Tibetan Plateau that has a cold climate and from the warmer Loess Plateau. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - September 11, 2020 Category: Biology Source Type: news
Efficacy of silver diamine fluoride and sodium fluoride in inhibiting enamel erosion: an ex vivo study with primary teeth
ConclusionConsidering phosphorus loss values, 10% SDF seems to be effective in inhibiting enamel erosion after 1% and 10% citric acid challenges, whereas 2% NaF only after 1% citric acid challenge. Regarding calcium loss values, both fluoride agents seem to have no impact on inhibiting enamel erosion after 1% and 10% citric acid challenges. (Source: Dental Technology Blog)
Source: Dental Technology Blog - September 1, 2020 Category: Dentistry Source Type: news
Rodenticide poisoning: critical appraisal of patients at a tertiary care center - Gopalakrishnan S, Kandasamy S, Iyyadurai R.
Importance: Rodenticide poisoning is a common occurrence in India. Of the different classes of rodenticides available, yellow phosphorus is considered highly toxic. There are scarce epidemiological data regarding the ingestion of yellow phosphorus in the s... (Source: SafetyLit)
Source: SafetyLit - August 4, 2020 Category: International Medicine & Public Health Tags: Economics of Injury and Safety, PTSD, Injury Outcomes Source Type: news
Fostering a sustainable use of phosphorus
(CMCC Foundation - Euro-Mediterranean Center on Climate Change) Phosphorus is critical to food security, ecosystem functioning and human activities. Urbanization and dietary changes, and in particular industrial use of P for chemical fertilizer production, have determined a declining trend especially in the last decades. A study recently published on Nature food realized with the contribution of the CMCC Foundation provides some suggestions on how to address this critical issue while protecting food security. (Source: EurekAlert! - Medicine and Health)
Source: EurekAlert! - Medicine and Health - July 27, 2020 Category: International Medicine & Public Health Source Type: news
Newly discovered plant gene could boost phosphorus intake
(University of Copenhagen) Researchers from the University of Copenhagen have discovered an important gene in plants that could help agricultural crops collaborate better with underground fungi -- providing them with wider root networks and helping them to absorb phosphorus. The discovery has the potential to increase agricultural efficiency and benefit the environment. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - June 16, 2020 Category: Biology Source Type: news
Flame retardancy and thermal properties of rigid polyurethane foam conjugated with a phosphorus-nitrogen halogen-free intumescent flame retardant - Lin Z, Zhao Q, Fan R, Yuan X, Tian F.
In this work, a halogen-free intumescent combining phosphorus and nitrogen, flame-retardant 2-((2-hydroxyphenyl)(phenylamino)methyl5,5-dimethyl-1,3,2-dioxaphosphinane 2-oxide (HAPO) was successfully synthesized. It had been synthesized by reaction of 5,5-d... (Source: SafetyLit)
Source: SafetyLit - June 9, 2020 Category: International Medicine & Public Health Tags: Burns, Electricity, Explosions, Fire, Scalds Source Type: news
FDA authorizes COVID-19 saliva test by Phosphorus Diagnostics
The U.S. Food and Drug Administration on Monday allowed emergency use of a COVID-19 saliva test made by privately held Phosphorus Diagnostics LLC that allows people to send in their saliva samples to the company's laboratory for testing. (Source: Reuters: Health)
Source: Reuters: Health - June 8, 2020 Category: Consumer Health News Tags: healthNews Source Type: news
Safe and fast synthesis of black phosphorus and its purification - Kitada S, Shimizu N, Hossain MZ.
We report a rapid and safe procedure for the synthesis of black phosphorus (BP) by the chemical transport reaction (CTR) method and a purification procedure for the as-prepared BP. Frequent explosion of glass ampules containing reactants (red P, Sn, and Sn... (Source: SafetyLit)
Source: SafetyLit - June 4, 2020 Category: International Medicine & Public Health Tags: Burns, Electricity, Explosions, Fire, Scalds Source Type: news
Letting chickens get plenty of sunlight may help boost the vitamin D content of their eggs
(Natural News) Vitamin D is a nutrient needed by the body for the absorption of calcium, magnesium and phosphorus. It belongs to a family of cholesterol-derived compounds and has two major forms: vitamin D2, also known as ergocalciferol, and vitamin D3, also called cholecalciferol. Vitamin D is also known by many as the “sunshine vitamin” because it is produced... (Source: NaturalNews.com)
Source: NaturalNews.com - May 7, 2020 Category: Consumer Health News Source Type: news
Erika Hersch-Green wins CAREER Award for Biodiversity Research
(Michigan Technological University) Erika Hersch-Green has received a NSF CAREER award to study how increasing amounts of nitrogen and phosphorus in terrestrial ecosystems lead to decreasing biodiversity, not only among plant species, but in herbivores and pollinators as well. (Source: EurekAlert! - Medicine and Health)
Source: EurekAlert! - Medicine and Health - May 1, 2020 Category: International Medicine & Public Health Source Type: news
Bermudagrass harvest management options with poultry litter fertilization
(American Society of Agronomy) Managing Harvests of 'Russell' and 'Tifton 44' Bermudagrass Receiving Broiler Litter for Phosphorus Removal and Nutritive Value (Source: EurekAlert! - Medicine and Health)
Source: EurekAlert! - Medicine and Health - April 30, 2020 Category: International Medicine & Public Health Source Type: news
A plants diet, surviving in a variable nutrient environment
As primary producers, plants rely on a large aboveground surface area to collect carbon dioxide and sunlight and a large underground surface area to collect the water and mineral nutrients needed to support their growth and development. Accessibility of the essential nutrients nitrogen (N) and phosphorus (P) in the soil is affected by many factors that create a variable spatiotemporal landscape of their availability both at the local and global scale. Plants optimize uptake of the N and P available through modifications to their growth and development and engagement with microorganisms that facilitate their capture. The se...
Source: ScienceNOW - April 1, 2020 Category: Science Authors: Oldroyd, G. E. D., Leyser, O. Tags: Botany, Ecology, Online Only review Source Type: news
A Basic Understanding of Organic Chemistry
Carbon chemistry refers for the study on the elements, which type the base for organic chemistry. Components in carbon chemistry are broken down into fundamental components or compounds. Some components may well be subject to scientific properties, which are writing paper a lot more important than other folks. The basis of organic chemistry is definitely the study of those components and their reactions. The basis of base chemistry is the bases of your chemical components, which tends to make up carbon in organic chemistry. The basis may be the nuclei in the elements which are carbon, hydrogen, nitrogen, oxygen, phosphorus...
Source: UNISON Health care news - March 30, 2020 Category: UK Health Authors: testuser Tags: Article Source Type: news
HKU team develops new wastewater treatment process
(The University of Hong Kong) A University of Hong Kong research team has developed a novel wastewater treatment system that can effectively remove conventional pollutants, and recover valuable resources such as phosphorus and organic materials. This novel system combines chemically enhanced primary sedimentation of sewage with acidogenic fermentation of sludge in tandem, can effectively remove trace emerging chemical contaminants from wastewater and is more cost effective compared with conventional wastewater treatment systems. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - March 30, 2020 Category: Biology Source Type: news
Dams in the upper Mekong River modify nutrient bioavailability downstream
(Science China Press) Chen et al. shed new light on the effects of hydropower dams on nutrient cycling and ecosystem functioning. The study on the cascade reservoirs along the upper Mekong River demonstrated that hydropower reservoirs increased downstream bioavailability of nitrogen and phosphorus, stimulated phytoplankton abundance and shifted the dominant species from diatoms in the silicon-rich upstream channel to green algae in downstream reservoirs. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - March 17, 2020 Category: Biology Source Type: news
Enantioselective remote C-H activation directed by a chiral cation
We report here a strategy to render a common bipyridine ligand anionic and pair its iridium complexes with a chiral cation derived from quinine. We have applied these ion-paired complexes to long-range asymmetric induction in the desymmetrization of the geminal diaryl motif, located on a carbon or phosphorus center, by enantioselective C–H borylation. In principle, numerous common classes of ligand could likewise be amenable to this approach. (Source: ScienceNOW)
Source: ScienceNOW - March 11, 2020 Category: Science Authors: Genov, G. R., Douthwaite, J. L., Lahdenperä, A. S. K., Gibson, D. C., Phipps, R. J. Tags: Chemistry reports Source Type: news
Recovering phosphorus from corn ethanol production can help reduce groundwater pollution
(University of Illinois College of Agricultural, Consumer and Environmental Sciences) Dried distiller's grains with solubles (DDGS), a co-product from corn ethanol processing, is commonly used as feed for cattle, swine and poultry. However, DDGS contains more phosphorus than the animals need. The excess ends up in manure and drains into the watershed, promoting algae production and contributing to dead zones in the Gulf of Mexico. A new study from University of Illinois provides a simple method to recover phosphorus from DDGS in dry grind processing. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - March 6, 2020 Category: Biology Source Type: news
Here's why you need phosphorus in your diet, a mineral that promotes bone strength
(Natural News) Phosphorus is a mineral that the body needs to perform important functions, such as repairing tissues and filtering waste. It is the second most plentiful mineral in the body – next to calcium – and it is used to keep the bones strong and healthy. However, as an essential mineral, phosphorus cannot be... (Source: NaturalNews.com)
Source: NaturalNews.com - February 25, 2020 Category: Consumer Health News Source Type: news
Fire hazards management for polymeric materials via synergy effects of pyrolysates-fixation and aromatized-charring - Fu T, Guo DM, Chen L, Wu WS, Wang XL, Wang YZ.
Previous approaches to suppressing fire hazards are concentrated on brominated ﬂame retardants (BFRs) or phosphorus ﬂame retardants (PFRs). However, their chemical hazards to health and environment have not been able to be ignored currently. It is quit... (Source: SafetyLit)
Source: SafetyLit - January 30, 2020 Category: International Medicine & Public Health Tags: Burns, Electricity, Explosions, Fire, Scalds Source Type: news
Yellow phosphorus poisoning: a retrospective study in tertiary care hospital - Itagi S, Br S, Parashuram.
Introduction: Rodenticides have been an important cause of significant morbidity and mortality in patients with deliberate self harm.Yellow phosphorus a rodenticide is lethal toxin in humans which affects hepatic,cardiovascular,gastrointestinal and ren... (Source: SafetyLit)
Source: SafetyLit - January 27, 2020 Category: International Medicine & Public Health Tags: Economics of Injury and Safety, PTSD, Injury Outcomes Source Type: news
'Resurrection ecology' of 600-year-old water fleas used to understand pollution adaptation
(Molecular Biology and Evolution (Oxford University Press)) By taking advantage of the unique genomic model organism of tiny waterfleas, or Daphnia, an international team of researchers has now analyzed Daphnia from a phosphorus-rich Minnesota lake -- and compared it to revived, 600-year-old Daphnia dormant eggs found in the bottom sediments -- to better understand how these creatures cope with a dramatic environmental change. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - January 9, 2020 Category: Biology Source Type: news
Genes controlling mycorrhizal colonization discovered in soybean
(University of Illinois College of Agricultural, Consumer and Environmental Sciences) Like most plants, soybeans pair up with soil fungi in a symbiotic mycorrhizal relationship. In exchange for a bit of sugar, the fungus acts as an extension of the root system to pull in more phosphorus, nitrogen, micronutrients, and water than the plant could on its own. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - January 6, 2020 Category: Biology Source Type: news
Life could have emerged from lakes with high phosphorus
(University of Washington) Life as we know it requires phosphorus, and lots of it. But phosphorus is scarce. A University of Washington study, published Dec. 30 in the Proceedings of the National Academy of Sciences, reports that certain types of carbonate-rich lakes, which could have formed on early Earth, have the right chemistry to keep phosphorous levels high and available to organisms. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - December 30, 2019 Category: Biology Source Type: news
Stepwise Earth oxygenation is an inherent property of global biogeochemical cycling
Oxygenation of Earth’s atmosphere and oceans occurred across three major steps during the Paleoproterozoic, Neoproterozoic, and Paleozoic eras, with each increase having profound consequences for the biosphere. Biological or tectonic revolutions have been proposed to explain each of these stepwise increases in oxygen, but the principal driver of each event remains unclear. Here we show, using a theoretical model, that the observed oxygenation steps are a simple consequence of internal feedbacks in the long-term biogeochemical cycles of carbon, oxygen, and phosphorus, and that there is no requirement for a specific st...
Source: ScienceNOW - December 11, 2019 Category: Science Authors: Alcott, L. J., Mills, B. J. W., Poulton, S. W. Tags: Geochemistry, Geophysics, Planetary Science r-articles Source Type: news
What Affects the Nutritional Quality of Plant-Based Milk Substitutes?
Discussion People today may be eating more plant-based products because of: Allergen avoidance – lactose or cow’s milk allergy, 14% of people with cow’s milk allergy will also have soy allergy. Cultural importance Contamination avoidance e.g. growth hormone or antibiotic residues in cow’s milk production Specific diseases, e.g. cholesterol/lipid issues Environmental impact Ethical or religious considerations Improved nutrition With population growth “[t]he demand for food is expected to grow by 70% until 2050….While the expected protein consumption is believed to grow by 80%.” ...
Source: PediatricEducation.org - September 30, 2019 Category: Pediatrics Authors: Pediatric Education Tags: Uncategorized Source Type: news
New York Startup, Phosphorus, Offers DNA Testing That Assesses Your Risk Of Disease And More
New York startup Phosphorus is offering genetic testing for everything from your risk of heart disease to your tolerance for certain drugs to lifestyle changes that will improve your health. The founder believes someday the tests will be standard in primary care. (Source: Forbes.com Healthcare News)
Source: Forbes.com Healthcare News - August 30, 2019 Category: Pharmaceuticals Authors: Daniel D ' Ambrosio, Contributor Source Type: news
Medical News Today: What are the health benefits of phosphorus?
Phosphorus is a mineral that is essential for human health. It is available in a wide variety of foods, including meat, fish, dairy, and some vegetables. Learn more about its benefits here. (Source: Health News from Medical News Today)
Source: Health News from Medical News Today - July 1, 2019 Category: Consumer Health News Tags: Nutrition / Diet Source Type: news
Facile synthesis of a novel transparent hyperbranched phosphorous/nitrogen-containing flame retardant and its application in reducing the fire hazard of epoxy resin - Hu X, Yang H, Jiang Y, He H, Liu H, Huang H, Wan C.
In this study, a novel hyperbranched phosphorus/nitrogen-containing flame retardant (HPNFR) was facilely synthesized via the transesterification reaction of dimethyl methylphosphonate and tris (2-hydroxyethyl) isocyanurate and characterized successfully by... (Source: SafetyLit)
Source: SafetyLit - July 1, 2019 Category: International Medicine & Public Health Tags: Burns, Electricity, Explosions, Fire, Scalds Source Type: news
Scientists unearth green treasure -- albeit rusty -- in the soil
(Cornell University) Cornell University engineers have taken a step in understanding how iron in the soil may unlock naturally occurring phosphorus bound in organic matter, which can be used in fertilizer, so that one day farmers may be able to reduce the amount of artificial fertilizers applied to fields. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - June 17, 2019 Category: Biology Source Type: news
Apple salad with figs and almonds
Apples and figs are a delicious combination. Figs are also a good source of iron, calcium and phosphorus. (Source: MayoClinic.com Full Feed)
Source: MayoClinic.com Full Feed - May 17, 2019 Category: Consumer Health News Source Type: news
The Time for AI-Based Medical Device Regulation Is Now
Artificial Intelligence (AI) and Machine Learning (ML) are poised to revolutionize the field of healthcare.Â Researchers are leveraging deep learning methods to find new ways to efficiently diagnose and treat diseases.Â Although lacking a well-articulated AI strategy, the United States invested an estimated $2 billion on research and development for AI-based technologies in 2017.Â Since that time, the Department of Defense has also committed to providing up to an additional $2 billion per year in spending for AI technology and infrastructure over the next five years. Despite such investmen...
Source: MDDI - April 19, 2019 Category: Medical Devices Authors: Aaron Gin and Bryan Helwig Tags: Regulatory and Compliance Software Source Type: news
Wonder material: individual 2D phosphorene nanoribbons made for the first time
Tiny, individual, flexible ribbons of crystalline phosphorus have been made and measured an international collaboration, in a world first, and they could revolutionise electronics and fast-charging battery technology. (Source: University of Bristol news)
Source: University of Bristol news - April 10, 2019 Category: Universities & Medical Training Tags: Research; Faculty of Engineering, Faculty of Science, Faculty of Science, School of Physics, Faculty of Science, School of Physics, Interface Analysis Centre; Press Release Source Type: news
Are no-fun fungi keeping fertilizer from plants?
(American Society of Agronomy) Research explores soil, fungi, phosphorus dynamics. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - March 27, 2019 Category: Biology Source Type: news
Assessment of the Silver Penetration and Distribution in Carious Lesions of Deciduous Teeth Treated with Silver Diamine Fluoride
Research ArticleCaries Reshttps://doi.org/10.1159/000496210AbstractThe aim of this study was to determine the effects of 38% silver diamine fluoride (SDF) on carious lesions of human deciduous teeth. Ten extracted deciduous incisors with caries were collected and treated with SDF. After the treatment, the teeth were sectioned through the center of the carious lesion. The extent of sliver precipitation was examined using quantitative backscattered electron scanning electron microscopy (qBSE-SEM), energy-dispersive X-ray spectroscopy (EDX), and micro-computed tomography (micro-CT). The qBSE-SEM images revealed that the silve...
Source: Dental Technology Blog - March 4, 2019 Category: Dentistry Source Type: news
Frontiers in molecular p-block chemistry: From structure to reactivity
This year marks the 350th anniversary of the discovery of phosphorus by the alchemist Hennig Brand. However, this element was not included in the p-block of the periodic table until more recently. 2019 also marks the 150th anniversary of the preliminary tabular arrangement of the elements into the periodic system by Mendeleev. Of the 63 elements known in 1869, almost one-third of them belonged to what ultimately became the p-block, and Mendeleev predicted the existence of both gallium and germanium as well. The elements of the p-block have a disparate and varied history. Their chemical structure, reactivity, and properties...
Source: ScienceNOW - January 31, 2019 Category: Science Authors: Melen, R. L. Tags: Chemistry special/review Source Type: news
New Farm Bill Could Have Devastating Effects on Water Quality
Agricultural nonpoint-source pollution has repeatedly been cited as a leading cause of degraded water quality in water bodies ranging from tributaries to coastal estuaries. Approximately 40 percent of US agricultural land—roughly 15 percent of all the land in the United States—is enrolled in farm bill conservation programs aimed at improving soil retention and reducing nutrient pollution. But as Congress looks for ways to reduce discretionary funding, these conservation programs are on the chopping block in the 2012 reauthorization of the bill. The impact on water quality could be devastating. The conservation...
Source: Washington Watch - January 23, 2019 Category: Biology Authors: Adrienne Froelich Sponberg Source Type: news
Fatal yellow phosphorus poisoning in a child - Kumar K, Kumar M, Sankuru D, Reddy N.
KEYWORDS: Yellow phosphorous , poisoning , hepatic failure , multisystem involvement Language: en... (Source: SafetyLit)
Source: SafetyLit - January 2, 2019 Category: International Medicine & Public Health Tags: Age: Infants and Children Source Type: news
Long term ag change impacts stream water quality
(American Society of Agronomy) A new study examines how the switch to conservation tillage has impacted a southwestern Ohio lake over the past decades. From 1994 to 2014, an unusually long timespan, the researchers measured concentrations of suspended sediment, nitrogen, and phosphorus in streams draining into Acton Lake. (Source: EurekAlert! - Biology)
Source: EurekAlert! - Biology - January 2, 2019 Category: Biology Source Type: news
Here are 9 amazing benefits of regularly drinking lemongrass tea
(Natural News) Lemongrass is a tropical herb that has a citrus smell and taste. This tall, stalky plant is also known for its medicinal properties. It is rich in essential vitamins and minerals, such as vitamins A and C, calcium, magnesium, folate, iron, zinc, potassium, copper, phosphorus, manganese, and traces of B vitamins. While it... (Source: NaturalNews.com)
Source: NaturalNews.com - December 5, 2018 Category: Consumer Health News Source Type: news
Heterobiaryl synthesis by contractive C-C coupling via P(V) intermediates
We present an alternative approach to metal-catalyzed cross-coupling to make heterobiaryls using contractive phosphorus C–C couplings, also termed phosphorus ligand coupling reactions. The process starts by regioselective phosphorus substitution of the C–H bonds para to nitrogen in two successive heterocycles; ligand coupling is then triggered via acidic alcohol solutions to form the heterobiaryl bond. Mechanistic studies imply that ligand coupling is an asynchronous process involving migration of one heterocycle to the ipso position of the other around a central pentacoordinate P(V) atom. The strategy can be a...
Source: ScienceNOW - November 15, 2018 Category: Science Authors: Hilton, M. C., Zhang, X., Boyle, B. T., Alegre-Requena, J. V., Paton, R. S., McNally, A. Tags: Chemistry r-articles Source Type: news