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Alternative energy

Junyi Zhao, Huafeng Chen, Wenxin Li, Xiaoyu Jia, Xuequan Zhang, Dirong Gong
Ligands N-(dialkyl or arylphosphino)-(2,2'-bipyridin)-6-amine (L1, aryl = Ph; L2, alkyl =t Bu; L3, alkyl = adamantyl (Ad)) as well as the corresponding oxidized N-(2,2'-bipyridin-6-yl)- P, P-dialkyl or aryl phosphinic amide (L4, aryl = Ph; L5, alkyl =t Bu; L6, alkyl = Ad) congeners were designed and coordinated to cobalt dichloride. The structures of formed complexes were characterized by IR and elemental analyses, as well as characterizations of the X-ray diffractions for complexes Co4 and Co6, which revealed the cobalt center is expectedly pentacoordinated in a distorted trigonal bipyramidal configuration with a prolonged Co-O(═P) bond ...
March 12, 2018: Inorganic Chemistry
Gi Soon Park, Van Ben Chu, Byoung Woo Kim, Dong-Wook Kim, Hyung-Suk Oh, Yun Jeong Hwang, Byoung Koun Min
An optimization of band alignment at the p-n junction interface is realized on alcohol-based solution-processed Cu(In,Ga)(S,Se)2 (CIGS) thin film solar cells, achieving a power-conversion-efficiency (PCE) of 14.4%. To obtain a CIGS thin film suitable for interface engineering, a novel "3-step chalcogenization process" is designed for Cu2-xSe-derived grain growth and a double band gap grading structure. Considering S-rich surface of the CIGS thin film, an alternative ternary (Cd,Zn)S buffer layer is adopted to build favorable "spike" type conduction band alignment instead of "cliff" type...
March 12, 2018: ACS Applied Materials & Interfaces
Zhao Xiaoxiong, Wang Junmei, Song Yujun, Xinhua Chen
A new methodology has been developed with conjugating nanoparticles (NPs) with an active ingredient of Chinese herbs for nanomedicines with auto-targeting and enhanced magnetic resonance imaging (MRI) for liver cancer therapy. Fe@Fe3 O4 NPs are first synthesized via the programmed microfluidic process, whose surfaces are first modified with -NH2 groups using a silane coupling technique that uses (3-aminopropyl) trimethoxysilane (APTMS) as the coupling reagent and are subsequently activated by the bifunctional amine-active cross-linker (e...
March 12, 2018: Drug Development and Industrial Pharmacy
Kah Hon Leong, Azrina Abd Aziz, Lan Ching Sim, Pichiah Saravanan, Min Jang, Detlef Bahnemann
The utilisation of sunlight as an abundant and renewable resource has motivated the development of sustainable photocatalysts that can collectively harvest visible light. However, the bottleneck in utilising the low energy photons has led to the discovery of plasmonic photocatalysts. The presence of noble metal on the plasmonic photocatalyst enables the harvesting of visible light through the unique characteristic features of the noble metal nanomaterials. Moreover, the formation of interfaces between noble metal particles and semiconductor materials further results in the formation of a Schottky junction...
2018: Beilstein Journal of Nanotechnology
Maria S Yusseppone, Iara Rocchetta, Sebastian E Sabatini, Carlos M Luquet, Maria Del Carmen Ríos de Molina, Christoph Held, Doris Abele
Hypoxia in freshwater ecosystems is spreading as a consequence of global change, including pollution and eutrophication. In the Patagonian Andes, a decline in precipitation causes reduced lake water volumes and stagnant conditions that limit oxygen transport and exacerbate hypoxia below the upper mixed layer. We analyzed the molecular and biochemical response of the North Patagonian bivalve Diplodon chilensis after 10 days of experimental anoxia (<0.2 mg O2 /L), hypoxia (2 mg O2 /L), and normoxia (9 mg O2 /L)...
2018: Frontiers in Physiology
Jie Luo, Jian Wu, Siyuan Huo, Shihua Qi, Xiaowen Sophie Gu
The combined utilization of direct or alternating electric fields and phytoremediation was designed to decontaminate multi-metal polluted soil at a field scale e-waste recycling impacted site. Eucalyptus globulus was chosen for metal purification for its resilient and unpalatable nature. Biomass production, metal concentration and water use efficiency of the species under direct current (DC) and alternating current (AC) fields with various voltages were investigated. DC and AC fields stimulated the growth of the plant, except for DC field with high voltage (10 V)...
March 5, 2018: Chemosphere
J Diranzo-García, X Bertó-Martí, L Castillo-Ruiperez, V Estrems-Díaz, L Hernández-Ferrando, J Villodre-Jiménez, A Bru-Pomer
OBJECTIVE: To evaluate the results of surgical treatment of intraarticular calcaneal fractures, and also to analyze the variables that influence the final clinical and radiological outcomes as well as the complications. MATERIAL AND METHODS: We retrospectively analyzed 86 intraarticular calcaneal fractures in 78 patients, who underwent surgery with an extended lateral approach and reconstruction plate. The mean age was 48 years (16-74 years) and the mean follow-up was 4...
March 6, 2018: Revista Española de Cirugía Ortopédica y Traumatología
Jing Ding, Liangliang Wei, Huibin Huang, Qingliang Zhao, Weizhu Hou, Felix Tetteh Kabutey, Yixing Yuan, Dionysios D Dionysiou
This study presents an integrated Electro-Oxidation/Electro-Coagulation/Electro-Reduction (EO/EC/ER) process for tertiary landfill leachate treatment. The influence of variables including leachate characteristics and operation conditions on the performance of EO/EC/ER process was evaluated. The removal mechanisms were explored by comparing results of anode, cathode, and bipolar electrode substitution experiments. The performance of the process in a scaled-up reactor was investigated to assure the feasibility of the process...
March 6, 2018: Journal of Hazardous Materials
Isinsu Baylam, Sarper Ozharar, Alphan Sennaroglu
We report on an experimental demonstration of a 1200-nm pumped Tm3+ :Lu2 O3 ceramic laser. By using a gain-switched, tunable Cr4+ :forsterite laser, the excitation spectrum was measured, with optimum pumping bands centered near 1198 nm, 1204 nm, and 1211 nm. The highest slope efficiency of 21.5% was obtained at the pump wavelength of 1204 nm. Comparative energy efficiency measurements performed near 1200-nm and 800-nm pumping further showed that nearly 40% improvement was obtained in slope efficiency measured with respect to the incident pump energy for 1200-nm pumping...
March 10, 2018: Applied Optics
Özge Öz, Birsen Altay
PURPOSE: The purpose of this study was to examine associations among sociodemographic characteristics, urinary incontinence (UI) characteristics, UI-specific quality of life and self-esteem, and use of complementary and alternative medicine (CAM) interventions for UI. DESIGN: Correlational-descriptive research. SUBJECTS AND SETTING: This sample comprised 394 female patients 18 years or older cared for in the urology and gynecology outpatient clinics of a university hospital in Samsun, Turkey...
March 2018: Journal of Wound, Ostomy, and Continence Nursing
D M S B Dissanayaka, William C Plaxton, Hans Lambers, Meike Siebers, Buddhi Marambe, Jun Wasaki
Orthophosphate (H2 PO4 - , Pi) is an essential macronutrient integral to energy metabolism as well as a component of membrane lipids, nucleic acids, including ribosomal RNA, and therefore essential for protein synthesis. The Pi concentration in the solution of most soils worldwide is usually far too low for maximum growth of crops, including rice. This has prompted the massive use of inefficient, polluting, and non-renewable phosphorus (P) fertilizers in agriculture. We need alternative and more sustainable approaches urgently to decrease complete dependence on Pi fertilizers in agriculture...
March 8, 2018: Plant, Cell & Environment
P Kuntke, T H J A Sleutels, M Rodríguez Arredondo, S Georg, S G Barbosa, A Ter Heijne, Hubertus V M Hamelers, C J N Buisman
In recent years, (bio)electrochemical systems (B)ES have emerged as an energy efficient alternative for the recovery of TAN (total ammonia nitrogen, including ammonia and ammonium) from wastewater. In these systems, TAN is removed or concentrated from the wastewater under the influence of an electrical current and transported to the cathode. Subsequently, it can be removed or recovered through stripping, chemisorption, or forward osmosis. A crucial parameter that determines the energy required to recover TAN is the load ratio: the ratio between TAN loading and applied current...
March 9, 2018: Applied Microbiology and Biotechnology
Sarah Vieira Novais, Mariana Delgado Oliveira Zenero, Jairo Tronto, Rafaela Feola Conz, Carlos Eduardo Pellegrino Cerri
Increases in agricultural productivity associated to the crescent use of finite reserves of phosphorus improved the demand for ways to recycle and reuse this nutrient. Biochars, after doping processes, seem to be an alternative to mitigate the large use of P reserves. Sugarcane straw and poultry manure were submerged in an MgCl2 solution in a 1:10 solid/liquid ratio and subsequently pyrolyzed at 350 and 650 °C producing biochar. Increasing concentrations of P were agitated with biochars in order to obtain the maximum adsorption capacity of P with the aid of Langmuir and Freudelich isotherm...
March 5, 2018: Journal of Environmental Management
C Chen, M Pérez de Nanclares, J F Kurtz, M P Trudeau, L Wang, D Yao, M Saqui-Salces, P E Urriola, L Torunn Mydland, G C Shurson, M Overland
Rapeseed (RS) is an abundant and inexpensive source of energy and AA in diets for monogastrics and a sustainable alternative to soybean meal. It also contains diverse bioactive phytochemicals that could have antinutritional effects at high dose. When the RS-derived feed ingredients (RSF) are used in swine diets, the uptake of these nutrients and phytochemicals is expected to affect the metabolic system. In this study, two groups of young pigs (17.8 ± 2.7 kg initial BW) were equally fed a soybean meal-based control diet and a RSF-based diet, respectively, for 3 wk...
March 6, 2018: Journal of Animal Science
Elizabeth M Horstman, Prapti Kafle, Fengjiao Zhang, Yifu Zhang, Paul J A Kenis, Ying Diao
Nanosizing is rapidly emerging as an alternative approach to enhance solubility and thus the bioavailability of poorly aqueous soluble active pharmaceutical ingredients (APIs). Although numerous techniques have been developed to perform nanosizing of API crystals, precise control and modulation of their size in an energy and material efficient manner remains challenging. In this study, we present meniscus-guided solution coating as a new technique to produce pharmaceutical thin films of nanoscale thickness with controlled morphology...
March 8, 2018: ACS Applied Materials & Interfaces
Achim Dickmanns, Christopher P Zschiedrich, Johannes Arens, Iwan Parfentev, Jan Gundlach, Romina Hofele, Piotr Neumann, Henning Urlaub, Boris Görke, Ralf Ficner, Jorg Stulke
Utilization of energy-rich carbon sources such as glucose is fundamental to the evolutionary success of bacteria. Glucose can be catabolized via glycolysis for feeding the intermediary metabolism. The methylglyoxal synthase MgsA produces methylglyoxal from the glycolytic intermediate dihydroxyacetone phosphate. Methylglyoxal is toxic, requiring stringent regulation of MgsA activity. In the Gram-positive bacterium Bacillus subtilis , an interaction with the phosphoprotein Crh controls MgsA activity. In the absence of preferred carbon sources, Crh is present in the nonphosphorylated state and binds to and thereby inhibits MgsA...
March 7, 2018: Journal of Biological Chemistry
Igor Cestari, Atashi Anupama, Kenneth Stuart
Many cellular processes change during the Trypanosoma brucei life cycle as this parasite alternates between the mammalian host and tsetse fly vector. We show that the inositol phosphate pathway helps regulate these developmental changes. Knockdown of inositol polyphosphate multikinase (IPMK), which phosphorylates Ins(1,4,5)P3 and Ins(1,3,4,5)P4, resulted in changes in bloodstream forms that are characteristic of insect stage procyclic forms. These changes include expression of the procyclic surface coat, upregulation of RNA-binding proteins that we show to regulate stage-specific transcripts, and activation of oxidative phosphorylation with increased ATP production in bloodstream forms...
March 7, 2018: Molecular Biology of the Cell
John R Speakman
Human obesity has a large genetic component, yet has many serious negative consequences. How this state of affairs has evolved has generated wide debate. The thrifty gene hypothesis was the first attempt to explain obesity as a consequence of adaptive responses to an ancient environment that in modern society become disadvantageous. The idea is that genes (or more precisely, alleles) predisposing to obesity may have been selected for by repeated exposure to famines. However, this idea has many flaws: for instance, selection of the supposed magnitude over the duration of human evolution would fix any thrifty alleles (famines kill the old and young, not the obese) and there is no evidence that hunter-gatherer populations become obese between famines...
March 7, 2018: Journal of Experimental Biology
C Desert, E Baéza, M Aite, M Boutin, A Le Cam, J Montfort, M Houee-Bigot, Y Blum, P F Roux, C Hennequet-Antier, C Berri, S Metayer-Coustard, A Collin, S Allais, E Le Bihan, D Causeur, F Gondret, M J Duclos, S Lagarrigue
BACKGROUND: Because the cost of cereals is unstable and represents a large part of production charges for meat-type chicken, there is an urge to formulate alternative diets from more cost-effective feedstuff. We have recently shown that meat-type chicken source is prone to adapt to dietary starch substitution with fat and fiber. The aim of this study was to better understand the molecular mechanisms of this adaptation to changes in dietary energy sources through the fine characterization of transcriptomic changes occurring in three major metabolic tissues - liver, adipose tissue and muscle - as well as in circulating blood cells...
March 7, 2018: BMC Genomics
Alex Michels, Mikael Neumann, Guilherme Fernando Mattos Leão, Angela Maria Reck, Heloisa Godoi Bertagnon, Leandro Sâmia Lopes, André Martins Souza, Leslei Caroline Dos Santos, Edelmir Silvio Stadler Júnior
Objective: Isoquinoline Alkaloids, derived from one plant (Macleaya cordata) can be an alternative when it is desired to increase performance in feedlot cattle. However, results on these nutritional additives in high energy diets in ruminants are still incipient in literature. In this context, the objective of this study was to evaluate performance and carcass traits of feedlot bulls supplemented with sanguinarine, the main alkaloid presents in Macleaya cordata in high energy density diets...
March 2, 2018: Asian-Australasian Journal of Animal Sciences
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