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https://www.readbyqxmd.com/read/28813053/copper-ii-benzimidazole-complexes-as-efficient-fluorescent-probes-for-l-cysteine-in-water
#1
Duraiyarasu Maheshwaran, Selvarasu Priyanga, Ramasamy Mayilmurugan
Copper(ii) complexes [Cu(L1)(H2O)2](SO3CF3)21 and [Cu(L2)(H2O)2](SO3CF3)22 based on 2,6-bis(benzimidazolyl)pyridine were synthesized and are reported herein as highly selective "turn-on" optical probes for l-cysteine. The Cu(ii)/Cu(i) redox potential of probe 1 (0.14 V vs. NHE) was lower than that of 2 (0.233 V vs. NHE) in water. The molecular structure of 2 adopted a square pyramidal geometry (τ = 0.2545), with the Cu-Npy bond (1.958 Å) of its middle pyridine unit being shorter than the other two Cu-Nbenzim bonds (Cu-N, 1...
August 16, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28811987/early-complications-and-outcomes-in-adult-spinal-deformity-surgery-an-nsqip-study-based-on-5803-patients
#2
Nathan J Lee, Parth Kothari, Jun S Kim, John I Shin, Kevin Phan, John Di Capua, Sulaiman Somani, Dante M Leven, Javier Z Guzman, Samuel K Cho
STUDY DESIGN: Retrospective analysis. OBJECTIVE: The purpose of this study is to determine the incidence, impact, and risk factors for short-term postoperative complications following elective adult spinal deformity (ASD) surgery. METHODS: Current Procedural Terminology codes were used to query the American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP) for adults who underwent spinal deformity surgery from 2010 to 2014...
August 2017: Global Spine Journal
https://www.readbyqxmd.com/read/28810908/relative-risk-estimation-of-dengue-disease-at-small-spatial-scale
#3
Daniel Adyro Martínez-Bello, Antonio López-Quílez, Alexander Torres Prieto
BACKGROUND: Dengue is a high incidence arboviral disease in tropical countries around the world. Colombia is an endemic country due to the favourable environmental conditions for vector survival and spread. Dengue surveillance in Colombia is based in passive notification of cases, supporting monitoring, prediction, risk factor identification and intervention measures. Even though the surveillance network works adequately, disease mapping techniques currently developed and employed for many health problems are not widely applied...
August 15, 2017: International Journal of Health Geographics
https://www.readbyqxmd.com/read/28810640/in-hospital-and-long-term-outcomes-of-congestive-heart-failure-predictive-value-of-b-type-and-amino-terminal-pro-b-type-natriuretic-peptides-and-their-ratio
#4
Yuxiang Dai, Jun Yang, Atsutoshi Takagi, Hakuoh Konishi, Tetsuro Miyazaki, Hiroshi Masuda, Kazunori Shimada, Katsumi Miyauchi, Hiroyuki Daida
Relative changes in B-type natriuretic peptide (BNP) and amino terminal pro-BNP (NT-proBNP) levels may help to assess the risk of congestive heart failure (CHF). However, whether these levels at the time of admission enable the prediction of outcomes with acute exacerbation remains unknown. The current study determined the abilities of BNP, NT-proBNP and their ratio to predict in-hospital and long-term outcomes of patients with CHF. Patients who were admitted to the cardiac care unit of Juntendo University Hospital (Tokyo, Japan) with acute CHF onset were consecutively enrolled into the present observational study...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810507/landscape-determinants-of-spatio-temporal-patterns-of-aerosol-optical-depth-in-the-two-most-polluted-metropolitans-in-the-united-states
#5
Chenghao Wang, Chuyuan Wang, Soe W Myint, Zhi-Hua Wang
Elevated concentration of atmospheric aerosols during severe urban air pollution episodes necessitates a deep understanding of the underlying determinants for a sustainable urban environment. The 15-year (2001-2015) Moderate Resolution Imaging Spectroradiometer (MODIS) aerosol optical depth (AOD) data for the Phoenix and Los Angeles Metropolitan Areas were applied to examine the spatio-temporal patterns and dynamics of urban aerosols. The strongly correlated temporal trends of AOD were observed due to the similar seasonal pattern of aerosol emissions and potential synoptic connections between two areas...
August 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28810434/unhealthy-weight-control-strategies-an-outcome-of-body-image-and-eating-tensions-in-women-of-mexican-origin-living-in-rural-farming-communities
#6
Karen F Stein, Nicole Trabold, Kay Connelly
Unhealthy eating and weight control behaviors are important but modifiable factors that contribute to obesity in majority and minority populations. Studies suggest that these behaviors are common in Mexican American women, but most studies completed to date have focused on college enrolled Mexican American women. Little is known about body weight concerns, eating and weight control behaviors in low acculturated immigrant Mexican women. This qualitative descriptive study utilized two focus groups with 15 women to identify and describe body weight and shape perceptions, and thoughts and behaviors related to eating and weight control of low acculturated Mexican American living in disadvantaged economic situations...
March 1, 2017: Journal of Health Psychology
https://www.readbyqxmd.com/read/28809537/confined-water-structure-dynamics-and-thermodynamics
#7
Sudip Chakraborty, Hemant Kumar, Chandan Dasgupta, Prabal K Maiti
Understanding the properties of strongly confined water is important for a variety of applications such as fast flow and desalination devices, voltage generation, flow sensing, and nanofluidics. Confined water also plays an important role in many biological processes such as flow through ion channels. Water in the bulk exhibits many unusual properties that arise primarily from the presence of a network of hydrogen bonds. Strong confinement in structures such as carbon nanotubes (CNTs) substantially modifies the structural, thermodynamic, and dynamic (both translational and orientational) properties of water by changing the structure of the hydrogen bond network...
August 15, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28809116/organoimido-polyoxometalate-nonlinear-optical-chromophores-a-structural-spectroscopic-and-computational-study
#8
Ahmed Al-Yasari, Nick Van Steerteghem, Hayleigh Kearns, Hani El Moll, Karen Faulds, Joseph A Wright, Bruce S Brunschwig, Koen Clays, John Fielden
Ten organoimido polyoxometalate (POM)-based chromophores have been synthesized and studied by hyper-Rayleigh scattering (HRS), Stark and Resonance Raman spectroscopies, and density functional theory (DFT) calculations. HRS β0 values for chromophores with resonance electron donors are significant (up to 139 × 10(-30) esu, ∼5 times greater than that of the DAS(+) cation), but systems with no donor, or the -NO2 acceptor show no activity, in some cases, despite large DFT-predicted β-values. In active systems with short (phenyl) π-bridges, β0 values comfortably exceed that of the purely organic structural analogue N,N-dimethyl-4-nitroaniline (DMPNA), and intrinsic β-values, β0/N(3/2) (where N is the number of bridge π-electrons) thus appear to break empirical performance limits (β0/N(3/2) vs λmax) for planar organic systems...
August 15, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28807742/a-cost-utility-analysis-of-dynesys-dynamic-stabilization-versus-instrumented-fusion-for-the-treatment-of-degenerative-lumbar-spine-diseases
#9
Kan Liu, Wei Sun, Qiang Lu, Jiying Chen, Jiaguang Tang
BACKGROUND: Symptomatic chronic low back and leg pain resulting from lumbar spine degenerative disorders is highly prevalent in China, and for some patients, surgery is the final option for improvement. Several techniques for spinal non-fusion have been introduced to reduce the side-effects of fusion methods and hasten postoperative recovery. In this study, the authors have evaluated the cost-effectiveness of Dynesys posterior dynamic stabilization system (DY) compared with lumbar fusion techniques in the treatment of single-level degenerative lumbar spinal conditions...
August 11, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28805929/the-impact-of-training-strategies-on-the-accuracy-of-genomic-predictors-in-united-states-red-angus-cattle
#10
J Lee, S D Kachman, M L Spangler
Genomic selection (GS) has become an integral part of genetic evaluation methodology and has been applied to all major livestock species, including beef and dairy cattle, pigs, and chickens. Significant contributions in increased accuracy of selection decisions have been clearly illustrated in dairy cattle after practical application of GS. In the majority of U.S. beef cattle breeds, similar efforts have also been made to increase the accuracy of genetic merit estimates through the inclusion of genomic information into routine genetic evaluations using a variety of methods...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805899/effects-of-forage-types-on-digestibility-methane-emissions-and-nitrogen-utilization-efficiency-in-two-genotypes-of-hill-ewes
#11
Y G Zhao, R Annett, T Yan
Thirty-six nonpregnant hill ewes (18 pure Scottish Blackface and 18 Swaledale × Scottish Blackface) aged 18 mo and weighing 48 ± 4.8 kg were allocated to 3 forage treatments balanced for genotype and BW. Each genotype was offered 3 forages (pelleted ryegrass, fresh lowland grass, and fresh hill grass) ad libitum with 6 ewes for each of the 6 genotype × diet combination treatments. Pelleted ryegrass was sourced from a commercial supplier (Drygrass South Western Ltd, Burrington, UK). Fresh lowland grass was harvested daily in the morning from a third regrowth perennial ryegrass () sward...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805481/a-comparison-of-quality-of-sleep-between-patients-with-chronic-kidney-disease-not-on-hemodialysis-and-end-stage-renal-disease-on-hemodialysis-in-a-developing-country
#12
Salman T Shafi, Tahir Shafi
Few studies have compared quality of sleep between pre-dialysis chronic kidney disease (pre-dialysis CKD) patients and end-stage renal disease patients on dialysis (ESRD) and have found inconsistent results. Objective of this study is to compare quality of sleep between patients with pre-dialysis CKD and ESRD in a developing country. This study was conducted in an out-patient department and hemodialysis unit of a tertiary care facility. Patients included had either pre-dialysis CKD or ESRD. Assessment of quality of sleep was done using Pittsburgh sleep quality index (PSQI)...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28805090/examining-young-children-s-social-competence-using-functional-ability-profiles
#13
Tara W McLaughlin, Patricia A Snyder, James Algina
PURPOSE: To explore the use of International Classification of Functioning, Disability, and Health for Children and Youth (ICF-CY) based profiles of children's functional abilities in relation to their social competence. Subgroups based on shared profiles of functional ability were investigated as an alternative or complement to subgroups defined by disability categories. METHODS: Secondary analysis of a nationally representative data set of young children identified for special education services in the United States was used for the present study...
August 13, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28801397/getting-the-right-balance-a-mixed-logit-analysis-of-the-relationship-between-uk-training-doctors-characteristics-and-their-specialties-using-the-2013-national-training-survey
#14
Idaira Rodriguez Santana, Martin Chalkley
OBJECTIVE: To analyse how training doctors' demographic and socioeconomic characteristics vary according to the specialty that they are training for. DESIGN: Descriptive statistics and mixed logistic regression analysis of cross-sectional survey data to quantify evidence of systematic relationships between doctors' characteristics and their specialty. SETTING: Doctors in training in the United Kingdom in 2013. PARTICIPANTS: 27 530 doctors in training but not in their foundation year who responded to the National Training Survey 2013...
August 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/28796643/monte-carlo-and-experimental-determination-of-correction-factors-for-gamma-knife-perfexion-small-field-dosimetry-measurements
#15
Emmanouil Zoros, Argyris S Moutsatsos, Eleftherios P Pappas, Evangelos Georgiou, Georgios Kollias, Pantelis Karaiskos, Evaggelos Pantelis
Detector-, field size- and machine-specific correction factors are required for precise dosimetry measurements in small and non-standard photon fields. In this work, Monte Carlo (MC) simulation techniques were used to calculate the correction factors for a series of ionization chambers, a synthetic microDiamond and diode dosimeters, used for reference and/or output factor (OF) measurements in the Gamma Knife Perfexion photon fields. Calculations were performed for the Solid Water (SW) and ABS plastic phantoms, as well as for a water phantom of the same geometry...
August 10, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28796275/immature-platelets-as-a-novel-biomarker-for-adverse-cardiovascular-events-in-patients-after-non-cardiac-surgery
#16
Aida Anetsberger, Manfred Blobner, Bernhard Haller, Sebastian Schmid, Katrin Umgelter, Theresa Hager, Clemens Langgartner, Eberhard F Kochs, Karl-Ludwig Laugwitz, Bettina Jungwirth, Isabell Bernlochner
This study evaluates whether immature platelets (IPF) determined in the post anesthesia care unit (PACU) can predict major adverse cardiovascular events (MACE) or other thromboembolic events after intermediate and high-risk surgery. IPF are increased in patients with acute coronary syndrome and recently gained interest as novel biomarker for risk stratification. In this prospective observational trial 732 patients undergoing intermediate or high-risk non-cardiac surgery were enrolled (NCT02097602). IPF was measured preoperatively and postoperatively in the PACU...
August 10, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28795812/investigation-of-the-adsorption-of-amphipathic-macroraft-agents-onto-montmorillonite-clay
#17
Rodrigo Duarte Silva, Igor Stefanichen Monteiro, Thaïssa De Camargo Chaparro, Raíssa Silva Hardt, Reinaldo Giudici, Ana Barros-Timmons, Elodie Bourgeat-Lami, Amilton Martins Dos Santos
Recently, there has been significant interest in the use of the reversible addition-fragmentation chain-transfer (RAFT) technique to generate a variety of organic/inorganic colloidal composite particles in aqueous dispersed media using the so-called macroRAFT-assisted encapsulating emulsion polymerization (REEP) strategy. In this process, special attention should be paid to the adsorption of the macromolecular RAFT (macroRAFT) agent onto the inorganic particles as it determines the final particle morphology and can also influence latex stability...
August 10, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28795665/-relationship-between-blood-lactate-level-and-the-prognosis-of-patients-with-diabetic-sepsis
#18
Yimei Liu, Minjie Ju, Simeng Pan, Hongyu He, Zhe Luo, Zhunyong Gu
OBJECTIVE: To evaluate the prognostic value of blood lactate (Lac) level in sepsis patients with or without diabetes. METHODS: 106 patients admitted to intensive care unit (ICU) of Zhongshan Hospital Affiliated to Fudan University from April 2015 to November 2016 were enrolled. The patients with age > 18 years and the length of hospital stay > 24 hours were included. Records including blood Lac, serum creatinine (SCr), white blood cell count (WBC), platelet count (PLT), sequential organ failure assessment (SOFA) on the first day of admission; minimum oxygen index (PaO2/FiO2) in 3 days after admission; mechanical ventilation, whether there was a history of diabetes, usage of biguanides, etiology control treatment, usage of continuous renal replacement therapy (CRRT) were collected...
August 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28795566/nucleotide-dependence-of-subunit-rearrangements-in-short-form-rubisco-activase-from-spinach
#19
Dayna S Peterson-Forbrook, Matthew T Hilton, Laura Tichacek, J Nathan Henderson, Hoang Quoc Bui, Rebekka M Wachter
Higher plant Rubisco activase (Rca) plays a critical role in regulating the activity of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco). In vitro, Rca is known to undergo dynamic assembly-disassembly processes, with several oligomer stoichiometries coexisting over a broad concentration range. Although the hexamer appears to be the active form, changes in quaternary structure could play a role in Rubisco regulation. Therefore, fluorescent labels were attached to the C-termini of spinach beta-Rca, and the rate of subunit mixing was monitored by measuring energy transfer as a function of nucleotide and divalent cation...
August 10, 2017: Biochemistry
https://www.readbyqxmd.com/read/28794926/solid-bioprocess-of-tarbush-flourensia-cernua-leaves-for-%C3%AE-glucosidase-production-by-aspergillus-niger-initial-approach-to-fiber-glycoside-interaction-for-enzyme-induction
#20
Juan Lopez-Trujillo, Miguel A Medina-Morales, Ariel Sanchez-Flores, Carlos Arevalo, Juan A Ascacio-Valdes, Miguel Mellado, Cristobal N Aguilar, Antonio F Aguilera-Carbo
Commercial cellulase production has increased in recent years and consistent research has been carried out to improve levels of β-glucosidase. Bioprocesses have been successfully adapted to produce this enzyme, with solid-state fermentations as the best-suited technique involving fungi. The aim of this study was to use leaves of tarbush (Flourensia cernua), an abundant shrub of the Chihuahuan Desert, as a carbon source for β-glucosidase production by Aspergillus niger. During the solid bioprocess, this enzyme reached its peak production at 36 h of culture with 3876...
August 2017: 3 Biotech
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