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https://www.readbyqxmd.com/read/28212024/environmental-multi-objective-optimization-of-the-use-of-biomass-resources-for-energy
#1
Carl Vadenbo, Davide Tonini, Thomas Fruergaard Astrup
Bioenergy is often considered an important component, alongside other renewables, to mitigate global warming and to reduce fossil fuel dependency. Determining sustainable strategies for utilizing biomass resources, however, requires a holistic perspective to reflect a wider range of potential environmental consequences. To circumvent the limitations of scenario-based life cycle assessment (LCA), we develop a multi-objective optimization model to systematically identify the environmentally-optimal use of biomass for energy under given system constraints...
February 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28210914/comparison-of-histopathological-characteristics-of-polyacrylate-polyalcohol-copolymer-with-dextranomer-hyaluronic-acid-after-injection-beneath-the-bladder-mucosa-layer-a-rabbit-model
#2
Abdol-Mohammad Kajbafzadeh, Shabnam Sabetkish, Reza Khorramirouz, Nastaran Sabetkish
OBJECTIVES: To compare short- and long-term local tissue reaction of polyacrylate polyalcohol copolymer (PPC) with dextranomer/hyaluronic acid (DHA) in rabbits. METHODS: Eight healthy New Zealand rabbits were randomly divided into two groups. In group I (control group), DHA was injected just beneath the mucosal layer of the bladder wall, while PPC was injected in group II. Subcutaneous injection of both bulking agents was also performed in nude mice. Histological evaluations with leukocyte common antibody (LCA), CD68, CD31, and CD34 were conducted on biopsies 1 and 6 months postoperatively...
February 16, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28209407/life-cycle-assessment-of-facile-microwave-assisted-zinc-oxide-zno-nanostructures
#3
D Papadaki, S Foteinis, G H Mhlongo, S S Nkosi, D E Motaung, S S Ray, T Tsoutsos, G Kiriakidis
The life cycle assessment of several zinc oxide (ZnO) nanostructures, fabricated by a facile microwave technique, is presented. Key synthesis parameters such as annealing temperature, varied from 90°C to 220°C, and microwave power, varied from 110W to 710W, are assessed. The effect of these parameters on both the structural characteristics and the environmental sustainability of the nanostructures is examined. The nanostructures were characterized by means of X-ray diffraction (XRD), focused ion beam scanning electron microscopy (FIB-SEM), ultraviolet-visible spectroscopy (UV-Vis), Photoluminescence (PL) and Brunauer-Emmett-Teller (BET) analysis...
February 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28207856/biodiesel-production-potential-from-fat-fraction-of-municipal-waste-in-makkah
#4
K Shahzad, A S Nizami, M Sagir, M Rehan, S Maier, M Z Khan, O K M Ouda, I M I Ismail, A O BaFail
In the Kingdom of Saudi Arabia (KSA), millions of Muslims come to perform Pilgrimage every year. Around one million ton of municipal solid waste (MSW) is generated in Makkah city annually. The collected MSW is disposed of in the landfills without any treatment or energy recovery. As a result, greenhouse gas (GHG) emissions and contamination of the soil and water bodies along with leachate and odors are occurring in waste disposal vicinities. The composition of MSW shows that food waste is the largest waste stream (up to 51%) of the total generated MSW...
2017: PloS One
https://www.readbyqxmd.com/read/28199973/laparoscopic-cryoablation-vs-percutaneous-cryoablation-for-treatment-of-small-renal-masses-a-systematic-review-and-meta-analysis
#5
Kehua Jiang, Kun Tang, Xiaolin Guo, Haoran Liu, Hongbo Chen, Zhiqiang Chen, Hua Xu, Zhangqun Ye
CONTEXT: Laparoscopic cryoablation (LCA) and percutaneous cryoablation(PCA) have been used on patients with small renal masses(SRMs) for many years. However, clinical studies assessing their feasibility and safety have reported contradictory outcomes. This systematic evaluation was performed to obtain comprehensive evidence with regard to the feasibility and safety of PCA compared with LCA. METHODS: A systematic search of Embase, Pubmed, Medline, the Cochrane Library were performed to identify studies that compared LCA with PCA were published up to Mar 2016...
February 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28192736/evidence-of-the-dissociative-ptsd-subtype-a-systematic-literature-review-of-latent-class-and-profile-analytic-studies-of-ptsd
#6
REVIEW
Maj Hansen, Jana Ross, Cherie Armour
BACKGROUND: The dissociative PTSD (D-PTSD) subtype was first introduced into the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) in 2013. Prior to this, studies using latent profile analysis (LPA) or latent class analysis (LCA), began to provide support for the D-PTSD construct and associated risk factors. This research is important, because dissociative symptoms in the context of PTSD may potentially interfere with treatment course or outcome. The aims of the present study were twofold: to systematically review the LCA and LPA studies investigating support for the D-PTSD construct; and to review the associated research on the risk factors or covariates of D-PTSD in the identified studies...
February 7, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28187338/a-hybrid-latent-class-analysis-modeling-approach-to-analyze-urban-expressway-crash-risk
#7
Rongjie Yu, Xuesong Wang, Mohamed Abdel-Aty
Crash risk analysis is rising as a hot research topic as it could reveal the relationships between traffic flow characteristics and crash occurrence risk, which is beneficial to understand crash mechanisms which would further refine the design of Active Traffic Management System (ATMS). However, the majority of the current crash risk analysis studies have ignored the impact of geometric characteristics on crash risk estimation while recent studies proved that crash occurrence risk was affected by the various alignment features...
February 7, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28185853/sustainable-management-and-utilisation-of-concrete-slurry-waste-a-case-study-in-hong-kong
#8
Md Uzzal Hossain, Dongxing Xuan, Chi Sun Poon
With the promotion of environmental protection in the construction industry, the mission to achieve more sustainable use of resources during the production process of concrete is also becoming important. This study was conducted to assess the environmental sustainability of concrete slurry waste (CSW) management by life cycle assessment (LCA) techniques, with the aim of identifying a resource-efficient solution for utilisation of CSW in the production of partition wall blocks. CSW is the dewatered solid residues deposited in the sedimentation tank after washing out over-ordered/rejected fresh concrete and concrete trucks in concrete batching plants...
February 6, 2017: Waste Management
https://www.readbyqxmd.com/read/28183378/relative-emissions-intensity-of-dairy-production-systems-employing-different-functional-units-in-life-cycle-assessment
#9
S A Ross, C F E Topp, R A Ennos, M G G Chagunda
This study aimed to assess the merit and suitability of individual functional units (FU) in expressing greenhouse gas emissions intensity in different dairy production systems. An FU provides a clearly defined and measurable reference to which input and output data are normalised. This enables the results from life-cycle assessment (LCA) of different systems to be treated as functionally equivalent. Although the methodological framework of LCA has been standardised, selection of an appropriate FU remains ultimately at the discretion of the individual study...
February 10, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28183338/ultrasound-detected-pathologies-cluster-into-groups-with-different-clinical-outcomes-data-from-3000-community-referrals-for-shoulder-pain
#10
Gui Tran, Elizabeth M A Hensor, Aaron Ray, Sarah R Kingsbury, Philip O'Connor, Philip G Conaghan
BACKGROUND: Ultrasound is increasingly used to evaluate shoulder pain, but the benefits of this are unclear. In this study, we examined whether ultrasound-defined pathologies have implications for clinical outcomes. METHODS: We extracted reported pathologies from 3000 ultrasound scans of people with shoulder pain referred from primary care. In latent class analysis (LCA), we identified whether individual pathologies clustered in groups. Optimal group number was determined by the minimum Bayesian information criterion...
February 10, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28177849/the-clinical-evaluation-of-infantile-nystagmus-what-to-do-first-and-why
#11
Morgan Bertsch, Michael Floyd, Taylor Kehoe, Wanda Pfeifer, Arlene V Drack
INTRODUCTION: Infantile nystagmus has many causes, some life threatening. We determined the most common diagnoses in order to develop a testing algorithm. METHODS: Retrospective chart review. Exclusion criteria were no nystagmus, acquired after 6 months, or lack of examination. DATA COLLECTED: pediatric eye examination findings, ancillary testing, order of testing, referral, and final diagnoses. Final diagnosis was defined as meeting published clinical criteria and/or confirmed by diagnostic testing...
January 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28176775/investigating-the-relationship-between-sleep-and-macronutrient-intake-in-women-of-childbearing-age
#12
C J Bennett, H Truby, Z Zia, S W Cain, M L Blumfield
BACKGROUND/OBJECTIVE: Reduced sleep is a strong and independent risk factor for weight gain and obesity. Maternal obesity preconception and throughout gestation can increase the risk of adverse pregnancy outcomes and impact on offspring health in later life. This study investigated the relationship between sleeping behaviour and macronutrient intake in childbearing aged women. SUBJECTS/METHODS: We used cross-sectional data from the Australian Longitudinal Study on Women's Health 1973-78 cohort, aged 31-36 years in 2009 (n=8200)...
February 8, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28157562/life-cycle-assessment-and-nutrient-analysis-of-various-processing-pathways-in-algal-biofuel-production
#13
Dongyan Mu, Roger Ruan, Min Addy, Sarah Mack, Paul Chen, Yong Zhou
This study focuses on analyzing nutrient distributions and environmental impacts of nutrient recycling, reusing, and discharging in algal biofuels production. The three biomass conversion pathways compared in this study were: hydrothermal liquefaction technology (HTL), hydrothermal hydrolysis pretreatment +HTL (HTP), and wet lipid extraction (WLE). Carbon, nitrogen, and phosphorous (C, N, P) flows were described in each pathway. A primary cost analysis was conducted to evaluate the economic performance. The LCA results show that the HTP reduced life cycle NOx emissions by 10% from HTL, but increased fossil fuel use, greenhouse gas emissions, and eutrophication potential by 14%, 5%, and 28% respectively...
January 6, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28154267/contrast-induced-hyperemia-as-an-alternative-to-drug-induced-hyperemia-in-the-evaluation-of-the-fractional-flow-reserve-in-coronary-lesions
#14
Nobuo Shiode, Tomokazu Okimoto, Hiromichi Tamekiyo, Tomoharu Kawase, Kenichi Yamane, Yuzo Kagawa, Yuto Fujii, Yusuke Ueda, Naoya Hironobe, Yasuko Kato, Yasuhiko Hayashi
Objective Measuring the fractional flow reserve (FFR) requires the induction of coronary hyperemia, usually with adenosine, adenosine triphosphate (ATP), or papaverine. However, adenosine can induce rhythmic complications, and intracoronary boluses of papaverine that prolong the QT interval can cause ventricular tachycardia. Injection of contrast media, which is routinely performed to validate the FFR guidewire placement, also induces hyperemia and may be an alternative method of measuring the FFR. We evaluated the diagnostic accuracy of the FFR after contrast hyperemia (FFRcont) compared to FFR evaluated after intracoronary papaverine (FFRpp)...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28143458/identifying-subgroups-of-patients-using-latent-class-analysis-should-we-use-a-single-stage-or-a-two-stage-approach-a-methodological-study-using-a-cohort-of-patients-with-low-back-pain
#15
Anne Molgaard Nielsen, Peter Kent, Lise Hestbaek, Werner Vach, Alice Kongsted
BACKGROUND: Heterogeneity in patients with low back pain (LBP) is well recognised and different approaches to subgrouping have been proposed. Latent Class Analysis (LCA) is a statistical technique that is increasingly being used to identify subgroups based on patient characteristics. However, as LBP is a complex multi-domain condition, the optimal approach when using LCA is unknown. Therefore, this paper describes the exploration of two approaches to LCA that may help improve the identification of clinically relevant and interpretable LBP subgroups...
February 1, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28138802/identifying-patterns-of-social-and-economic-hardship-among-structurally-vulnerable-women-a-latent-class-analysis-of-hiv-sti-risk
#16
Meredith L Brantley, Deanna Kerrigan, Danielle German, Sahnah Lim, Susan G Sherman
Women who are structurally vulnerable are at heightened risk for HIV/STIs. Identifying typologies of structural vulnerability that drive HIV/STI risk behavior is critical to understanding the nature of women's risk. Latent class analysis (LCA) was used to classify exotic dancers (n = 117) into subgroups based on response patterns of four vulnerability indicators. Latent class regression models tested whether sex- and drug-related risk behavior differed by vulnerability subgroup. Prevalence of vulnerability indicators varied across housing instability (39%), financial insecurity (39%), limited education (67%), and arrest history (36%)...
January 30, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28132194/a-global-prospective-of-income-distribution-and-its-effect-on-life-cycle-assessment-of-municipal-solid-waste-management-a-review
#17
Pooja Yadav, S R Samadder
This study reviewed the municipal solid waste (MSW) composition, the management practices, and the use of life cycle assessment (LCA) tool for MSW management (MSWM) options in the various income group countries. LCA studies require inventory data, which is difficult to procure for any country including higher income group countries, and this issue gets compounded in low-income and lower middle-income group countries, which limits the implementation of LCA. This paper compared the use of LCA for MSWM between high-income and low-income group countries and also highlights the gap in using LCA for MSWM...
January 29, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28128437/schisandrol-b-protects-against-cholestatic-liver-injury-through-pregnane-x-receptor
#18
Hang Zeng, Yiming Jiang, Pan Chen, Xiaomei Fan, Dongshun Li, Aiming Liu, Xiaochao Ma, Wen Xie, Peiqing Liu, Frank J Gonzalez, Min Huang, Huichang Bi
BACKGROUND AND PURPOSE: Currently, ursodeoxycholic acid is the only FDA-approved drug for limited cholestatic liver diseases, and thus the development of new therapeutic approaches is of great importance. This study aimed to evaluate the anti-cholestasis effect of Schisandrol B (SolB), a bioactive compound isolated from Schisandra sphenanthera. EXPERIMENTAL APPROACH: Hepatoprotective effect of SolB against lithocholic acid (LCA)-induced intrahepatic extrahepatic cholestasis was evaluated in mice...
January 27, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28125986/clinical-analysis-of-small-cell-carcinoma-of-the-bladder-in-chinese-nine-case-reports-and-literature-reviews
#19
Zhi Chen, Qingquan Liu, Ruibao Chen, Zhuo Liu, Mingchao Li, Qing Ling, Licheng Wu, Jun Yang, Xiaming Liu, Tao Wang, Zhiquan Hu, Xiaoling Guo, Shaogang Wang, Weiming Yang, Jihong Liu
BACKGROUND: Small cell carcinoma of the bladder (SCCB) is a kind of rare and highly aggressive tumor that is present in an advanced stage and has a propensity for early metastasis. The main presenting symptom of SCCB is hematuria. Surgery, chemotherapy, and radiotherapy, either alone or as a part of combined therapy, have been used as the treatment. The aim of this study is to present our experience with 9 SCCB patients who were treated with different modalities and to share the findings upon reviewing the literatures for patients with SCCB reported in 56 literatures in Chinese...
January 26, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28120835/associations-among-personal-care-product-use-patterns-and-exogenous-hormone-use-in-the-niehs-sister-study
#20
Kyla W Taylor, Donna D Baird, Amy H Herring, Lawrence S Engel, Hazel B Nichols, Dale P Sandler, Melissa A Troester
It is hypothesized that certain chemicals in personal care products may alter the risk of adverse health outcomes. The primary aim of this study was to use a data-centered approach to classify complex patterns of exposure to personal care products and to understand how these patterns vary according to use of exogenous hormone exposures, oral contraceptives (OCs) and post-menopausal hormone therapy (HT). The NIEHS Sister Study is a prospective cohort study of 50,884 US women. Limiting the sample to non-Hispanic blacks and whites (N=47,019), latent class analysis (LCA) was used to identify groups of individuals with similar patterns of personal care product use based on responses to 48 survey questions...
January 25, 2017: Journal of Exposure Science & Environmental Epidemiology
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