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Michelle M Valdez, Maureen Liwanag, Charles Mount, Rechell Rodriguez, Elisea Avalos-Reyes, Andrew Smith, David Collette, Michael Starsiak, Richard Green
Introduction: Inefficiencies in the command approval process for publications and/or presentations negatively impact DoD Graduate Medical Education (GME) residency programs' ability to meet ACGME scholarly activity requirements. A preliminary review of the authored works approval process at Naval Medical Center San Diego (NMCSD) disclosed significant inefficiency, variation in process, and a low level of customer satisfaction. In order to facilitate and encourage scholarly activity at NMCSD, and meet ACGME requirements, the Executive Steering Council (ESC) chartered an interprofessional team to lead a Lean Six Sigma (LSS) Rapid Improvement Event (RIE) project...
March 14, 2018: Military Medicine
Alex Y Lo, Shuwen Liu
Many high-density cities struggle to find space for disposing municipal solid waste. Hong Kong is one of these cities, seeking to scale up waste recovery efforts as an alternative to disposal. However, territory-wide recovery initiatives do not account for socio-economic variations across place, leading to mixed outcomes among diverse communities. This study aims to investigate socio-economic effects on recycling behavior in a sample of subsidized rental housing estates. It constitutes an improvement from previous studies by using the entire estate as a unit of analysis and analyzing actual recycling outcomes, which have received limited attention from researchers...
March 13, 2018: Journal of Environmental Management
Ya'nan Liu, Na Liu, Yuning Chen, Weifeng Zhang, Ruixiang Qu, Qingdong Zhang, Tzungyu-Shih, Lin Feng, Yen Wei
Food waste water is one of the most urgent environmental problems for the close connection between food and our daily life. Herein, we use a simple hydrothermal method to prepare a highly efficient catalyst-CeO2 /Co3 O4 compound on the stainless steel mesh, aiming for food waste water treatment. Possessing the superhydrophilic property and catalytic ability under ultraviolet light, CeO2 /Co3 O4 coated mesh has successfully processed three representative contaminants in food wastewater, which are soybean oil (food oil), AR (food dye) and VA (food flavor) simultaneously with an one-step filtration...
March 9, 2018: Water Research
Christine Prouty, Shima Mohebbi, Qiong Zhang
Given the increasing vulnerability of communities to the negative impacts of untreated wastewater, resource recovery (RR) systems provide a paradigm shift away from a traditional approach of waste separation and treatment towards a productive recovery of water, energy and nutrients. The aim of this research is to understand the relationships between factors that influence the adoption and sustainability of wastewater-based RR systems to inform technology implementation strategies. The study presents a theory-informed, community-influenced system dynamics (SD) model to provide decision-makers with an adaptable tool that simulates system-level responses to the strategies that are developed for the coastal town of Placencia, Belize...
March 7, 2018: Water Research
Jole Mariella, Eleonora Iacono, Aliai Lanci, Barbara Merlo, Caterina Palermo, Lee Morris, Carolina Castagnetti
The umbilical cord (UC), the connection between mother and fetus via the umbilical vessels, carries nutrients and oxygenated blood to the fetus through the umbilical vein and removes deoxygenated blood and waste products via the umbilical arteries. It is designed to protect blood flow to the fetus during pregnancy. In equine medicine, only a few studies have described the UC, and most of these involved Thoroughbreds. The present study describes and compares the macroscopic features of the equine umbilical cord in three different breeds and in relation to the foal's gender...
March 7, 2018: Theriogenology
Ayaka Sato, Yuya Ikeda, Koichi Yamaguchi, Varun Vohra
Facile detection and the identification of hazardous organic solvents are essential for ensuring global safety and avoiding harm to the environment caused by industrial wastes. Here, we present a simple method for the fabrication of silver-coated monodisperse polystyrene nanoparticle photonic structures that are embedded into a polydimethylsiloxane (PDMS) matrix. These hybrid materials exhibit a strong green iridescence with a reflectance peak at 550 nm that originates from the close-packed arrangement of the nanoparticles...
March 16, 2018: Nanomaterials
Debasis Banerjee, Xianyin Chen, Sergey Lobanov, Anna M Plonka, Xiaojun Chan, John Daly, Taejin Kim, Praveen K Thallapally, John Parise
Used nuclear fuel reprocessing represents a unique challenge when dealing with radionuclides such as isotopes of85 Kr and129 I2 due to their volatility and long half-life. Efficient capture of129 I2 (t1/2 = 15.7 ×106 million years) from the nuclear waste stream can help reduce the risk of releasing I2 radionuclide into the environment and/or potential incorporation into the human thyroid. Metal organic frameworks have the reported potential to be I2 adsorbents but the effect of water vapor, generally present in the reprocessing off-gas stream, is rarely taken into account...
March 16, 2018: ACS Applied Materials & Interfaces
Mona Mokhtari, Michael Jackson, Alistair Brown, David Ackerley, Nigel Ritson, Robert A Keyzers, Andrew Munkacsi
Pathogenic fungi continue to develop resistance against current antifungal drugs. To explore the potential of agricultural waste products as a source of novel antifungal compounds, we obtained an unbiased GC-MS profile of 151 compounds from 16 commercial and experimental cultivars of feijoa peels. Multivariate analysis correlated 93% of the compound profile with antifungal bioactivity. Of 18 compounds that significantly correlated with antifungal activity, five had not previously been described from feijoa...
March 16, 2018: Journal of Agricultural and Food Chemistry
Chuanhui Liao, Jin Hong, Dingtao Zhao, Shuang Zhang, Changhong Chen
Food waste is a worldwide problem due to its effects on carbon emission, water pollution, and arable lands. Previous studies of food waste generation and reduction focus on demographic, psychological, and situational factors, whereas the effects of culture in different countries have been ignored. This paper investigates the influence of Confucian culture on behaviors that waste food, considering additional factors of face saving and group conformity. We used an integrated behavioral intention model combining the TPB model and Lee's modified Fishbein model...
March 15, 2018: Environmental Science and Pollution Research International
Zhen-Yue Wu, Chao Ma, Yu-Lin Bai, Yu-Si Liu, Shi-Feng Wang, Xiao Wei, Kai-Xue Wang, Jie-Sheng Chen
The development of sustainable and low cost electrode materials for sodium-ion batteries has attracted considerable attention. In this work, a carbon composite material decorated with in situ generated ZnS nanoparticles has been prepared via a simple pyrolysis of the rubber powder from dumped tires. Upon being used as an anode material for sodium-ion batteries, the carbon composite shows a high reversible capacity and rate capability. A capacity as high as 267 mA h g-1 is still retained after 100 cycles at a current density of 50 mA g-1...
March 16, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
D K Boruah, A Prakash, B B Gogoi, R R Yadav, D D Dhingani, B Sarma
BACKGROUND AND PURPOSE: Hirayama disease is a benign focal amyotrophy of the distal upper limbs involving C7, C8, and T1 segmental myotomes with sparing of the brachioradialis and proximal muscles of the upper limb innervated by C5-6 myotomes. The objective of the present study was to study the utility of MR imaging in young patients presenting with weakness and wasting of the distal upper extremity and to evaluate the importance of the laminodural space during flexion cervical MR imaging...
March 15, 2018: AJNR. American Journal of Neuroradiology
Sara Díaz, Zaida Ortega, Mark McCourt, Mark P Kearns, Antonio N Benítez
This study focuses on the mechanical recycling of polymeric waste that is produced in considerable amount from the cable industry. Every year large amounts of cables become waste; wires recycling has traditionally focused on metal recovery, while the polymer cover has just been considered as a residue, being landfilled or incinerated. Nowadays, increasingly restrictive regulations and concern about environment make necessary to reduce landfilling as much as possible. Main novelty of the study is that the material used in the research is a post-consumer material and the entire residual material is used, without a previous purification, in contrast with similar studies...
March 12, 2018: Waste Management
Lei Liu, Jun Ma, Qiang Xue, Jingbang Shao, Yijun Chen, Gang Zeng
The optimization design of well spacing (WS) and aeration rate (AR) is crucial to the in situ aeration system operation in under long-term and high-efficiency conditions. This optimization design aims to transport additional air into landfills and to develop an improved oxygen environment for enhancing aerobic degradation. Given the specific pore structure distribution within landfills, providing sufficient oxygen in all waste bodies in field sites through gas wells is difficult. The design of well distribution also lacks adequate criteria...
March 12, 2018: Waste Management
Audrius Gegeckas, Aistė Šimkutė, Renata Gudiukaitė, Donaldas Jonas Čitavičius
Solid keratin-rich waste management is one of essential research area in nowadays. Conventional chemical and high thermal keratin waste decomposition methods are fully explored and not enough effective for future biotechnology perspectives. However, traditional keratin-rich waste decomposition methods could be replaced by environmentally-friendly and economical microbial keratin waste biodegradation methods without energy wastage and essential amino acids and nutrition elements loss. In this study BPKer and BAKer keratinolytic peptidases from Bacillus sp...
March 12, 2018: International Journal of Biological Macromolecules
Amir Bostani
The solubility of iron (Fe), as an important micronutrient for plant growth, is not high in the calcareous soils, and hence efficient methods must be used to increase its availability for plant use. Accordingly, a two-year research work was conducted to investigate the effects of composted municipal solid wastes (MSW) on Fe accumulation and fractionation in a calcareous soil. Treatments including MSW levels at (0 (control), 15 (MSW1), 30 (MSW2) and 60 (MSW3) t ha-1 dry weight) and usage time (yearly (T1) or biyearly usage (T2)) were tested in a factorial experiment on the basis of a completely randomized block design with three replications...
May 2018: Journal of Trace Elements in Medicine and Biology
Loai Albarqouni, Khamis Elessi, Niveen M E Abu-Rmeileh
BACKGROUND: Research conducted on conditions responsible for the greatest disease burden should be given the highest priority, particularly in resource-limited settings. The present study aimed to assess the research output in relation to disease burden in Palestine and to identify the conditions which are under- or over-investigated, if any. METHODS: We searched PubMed and Scopus for reports of original research relevant to human health or healthcare authored by researchers affiliated with Palestinian institutions and published between January 2000 and December 2015...
March 15, 2018: Health Research Policy and Systems
Afshin Khoshand, Ali Fathi, Milad Zoghi, Hamidreza Kamalan
One of the most common and economical methods for waste disposal is landfilling. The landfill cover system is one of the main components of landfills which prevents waste exposure to the environment by creating a barrier between the waste and the surrounding environment. The stability and integrity of the landfill cover system is a fundamental part of the design, construction, and maintenance of landfills. A reinforced tapered landfill cover system can be considered as a practical method for improving its stability; however, the simultaneous effects of seismic and seepage forces in the reinforced tapered landfill cover system have not been studied...
March 1, 2018: Waste Management & Research
Yilong Hua, Wei Wang, Xiaoyue Huang, Tianhang Gu, Dexin Ding, Lan Ling, Wei-Xian Zhang
Bicarbonate, ubiquitous in natural and waste waters is an important factor regulating the rate and efficiency of pollutant separation and transformation. For example, it can form complexes with U(VI) in the aqueous phase and at the solid-water interface. In this work, we investigated the effect of bicarbonate on the aging of nanoscale zero-valent (nZVI) in the context of U(VI) reduction and removal from wastewater. For fresh nZVI, over 99% aqueous uranium was separated in less than 10 min, of which 83% was reduced from U(VI) to U(IV)...
March 6, 2018: Chemosphere
Paulo R Frade, Luiza Notini, Sara V Santos, Regina F P M Moreira, Mônica M D Leão, Camila C Amorim
In this study, the steel manufacturing waste Basic Oxygen Furnace Sludge (BOFS) was tested as permeable reactive material for the remediation of soil contaminated with chromium. The material presents a high content of elemental iron and iron oxides typical of the steel manufacturing process. Here we propose a scheme of the chemical reactions responsible for remediation process including BOFS dissolution, Cr(VI) reduction and Cr(III) precipitation. Batch reactors showed that Cr(VI) removal increases as the pH decreases...
February 18, 2018: Journal of Hazardous Materials
Chen Chen, Nicole J Mitchell, Jean Gratz, Eric R Houpt, Yunyun Gong, Patricia A Egner, John D Groopman, Ronald T Riley, Jency L Showker, Erling Svensen, Estomih R Mduma, Crystal L Patil, Felicia Wu
Growth impairment is a major public health issue for children in Tanzania. The question remains as to whether dietary mycotoxins play a role in compromising children's growth. We examined children's exposures to dietary aflatoxin and fumonisin and potential impacts on growth in 114 children under 36 months of age in Haydom, Tanzania. Plasma samples collected from the children at 24 months of age (N = 60) were analyzed for aflatoxin B1 -lysine (AFB1 -lys) adducts, and urine samples collected between 24 and 36 months of age (N = 94) were analyzed for urinary fumonisin B1 (UFB1 )...
March 12, 2018: Environment International
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