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https://www.readbyqxmd.com/read/28335311/a-study-of-inverted-type-perovskite-solar-cells-with-various-composition-ratios-of-fapbi%C3%A2-1-x-mapbbr%C3%A2-x
#1
Lung-Chien Chen, Zong-Liang Tseng, Jun-Kai Huang
This work presents mixed (FAPbI₃)1-x(MAPbBr₃)x perovskite films with various composition ratios, x (x = 0-1), which are formed using the spin coating method. The structural, optical, and electronic behaviors of the mixed (FAPbI₃)1-x(MAPbBr₃)x perovskite films are discussed. A device with structure glass/indium tin oxide (ITO)/poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS)/mixed perovskite/C60/BCP/Ag was fabricated. The mixed perovskite film was an active light-harvesting layer. PEDOT: PSS was a hole transporting layer between the ITO and perovskite...
October 13, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28330422/bilateral-rectal-sheath-hematomas-after-low-molecular-weight-heparin-treatment-in-uremia
#2
Lu Xu, Lei Liu, Xinjian Li
Rectus sheath hematomas (RSHs) are uncommon. They are usually unilateral and rarely bilateral. In this paper, we report the first case of spontaneous bilateral RSHs in a uremic patient after the administration of the first dose of low-molecular weight heparin during hemodialysis. The most interesting aspect of this case is that the main symptom of RSH in our patient was urinary bladder irritation. We highlight the importance of the prompt diagnosis and management of this medical emergency.
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28303404/phylogenetic-analysis-of-proteins-involved-in-the-stringent-response-in-plant-cells
#3
Doshun Ito, Yuta Ihara, Hidenori Nishihara, Shinji Masuda
The nucleotide (p)ppGpp is a second messenger that controls the stringent response in bacteria. The stringent response modifies expression of a large number of genes and metabolic processes and allows bacteria to survive under fluctuating environmental conditions. Recent genome sequencing analyses have revealed that genes responsible for the stringent response are also found in plants. These include (p)ppGpp synthases and hydrolases, RelA/SpoT homologs (RSHs), and the pppGpp-specific phosphatase GppA/Ppx. However, phylogenetic relationship between enzymes involved in bacterial and plant stringent responses is as yet generally unclear...
March 16, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/28295724/improved-infrared-spectra-prediction-by-dft-from-a-new-experimental-database
#4
Madanakrishna Katari, Edith Nicol, Vincent Steinmetz, Guillaume van der Rest, Duncan Carmichael, Gilles Frison
This work aims to improve the computation of infrared spectra of gas-phase cations using DFT methods. Experimental IRMPD spectra for ten Zn and Ru organometallic complexes have been used to provide reference data for 64 vibrational modes in the 900-2000 cm-1 range. The accuracy of the IR vibrational frequencies predicted for these bands has been assessed over five DFT functionals and three basis sets. The functionals include the popular B3LYP and M06-2X hydrids and the range-separated hybrids (RSH) CAM-B3LYP, LC-BLYP and wB97X-D...
March 13, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28240508/it-s-not-inside-it-s-on-top-an-unusual-cause-of-right-iliac-fossa-pain
#5
N Singh, M Govender
Rectus sheath haematoma (RSH) is an uncommon cause of acute abdominal pain, but can mimic a variety of acute surgical conditions. Computed tomography (CT) provides the diagnosis and avoids unnecessary procedures.
June 2016: South African Journal of Surgery. Suid-Afrikaanse Tydskrif Vir Chirurgie
https://www.readbyqxmd.com/read/28199921/pilot-scale-bioconversion-of-rice-and-sunflower-agro-residues-into-medicinal-mushrooms-and-laccase-enzymes-through-solid-state-fermentation-with-ganoderma-lucidum
#6
P D Postemsky, M A Bidegain, R González-Matute, N D Figlas, M A Cubitto
Solid-state fermentation was evaluated at the pilot-scale for the bioconversion and valorization of rice husks and straw (RSH), or sunflower seed hulls (SSH), into medicinal mushrooms and crude extracts, with laccase activity. The average mushroom yield was 56kg dry weight per ton of agro-residues. Laccase activity in crude aqueous extracts showed its maximum value of 10,927Ukg(-1) in RSH (day 10, Exudate phase) and 16,442Ukg(-1) in SSH (day 5, Full colonization phase), the activity at the Residual substrate phase being 511Ukg(-1) in RSH and 803Ukg(-1) in SSH, respectively...
May 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28194720/effects-of-repeated-sprint-training-in-hypoxia-on-sea-level-performance-a-meta-analysis
#7
REVIEW
Franck Brocherie, Olivier Girard, Raphaël Faiss, Grégoire P Millet
BACKGROUND: Repeated-sprint training in hypoxia (RSH) is a recent intervention regarding which numerous studies have reported effects on sea-level physical performance outcomes that are debated. No previous study has performed a meta-analysis of the effects of RSH. OBJECTIVE: We systematically reviewed the literature and meta-analyzed the effects of RSH versus repeated-sprint training in normoxia (RSN) on key components of sea-level physical performance, i.e., best and mean (all sprint) performance during repeated-sprint exercise and aerobic capacity (i...
February 13, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28044933/should-arterial-embolization-in-recurrent-spontaneous-hemophilic-hemarthroses-refractory-to-intensive-prophylaxis-be-the-first-invasive-resort
#8
E Carlos Rodriguez-Merchan
This paper reviews the role of arterial embolization (AE) in recurrent spontaneous hemarthroses (RSH) that are refractory to intensive prophylaxis (RIP) in people with hemophilia (PWH). There are six articles in the literature on the topic. The total number of AEs performed so far is 78 in 69 patients. Four second AEs were required (4/78), and a third AE in one (1/78). No serious adverse effects have been reported except for a pseudoaneurym (1/78) of the femoral artery at the puncture site (that eventually required surgical repair) and for one patient (1/78) that had recurrence of bleeding for whom surgical exploration was required...
December 16, 2016: Cardiovascular & Hematological Disorders Drug Targets
https://www.readbyqxmd.com/read/28040482/schistosoma-antigens-downregulate-cxcl9-production-by-pbmc-of-htlv-1-infected-individuals
#9
Luciane Mota Lima, Luciana Santos Cardoso, Silvane Braga Santos, Ricardo Riccio Oliveira, Sérgio Costa Oliveira, Alfredo Miranda Góes, Alex Loukas, Maria Ilma Araujo
HTLV-1 is the causal agent of Adult T cell Leukemia/lymphoma (ATLL) and HTLV-1-associated Myelopathy/Tropical Spastic Paraparesis (HAM/TSP). The immune response to HTLV-1-infection is polarized to the Th1-type, and the presence of CXCL9/CXCL10 chemokines may lead to an increase in the recruitment of pro-inflammatory molecules in spinal cord tissue, contributing to the damage observed in the development of HAM/TSP. It has been observed that in chronic helminth-infections, such as schistosomiasis, there is a deviation toward the Th2/regulatory immune response...
March 2017: Acta Tropica
https://www.readbyqxmd.com/read/27976866/highly-selective-fluorescent-probe-for-imaging-h2se-in-living-cells-and-in-vivo-based-on-the-disulfide-bond
#10
Fanpeng Kong, Yuehui Zhao, Ziye Liang, Xiaojun Liu, Xiaohong Pan, Dongrui Luan, Kehua Xu, Bo Tang
Hydrogen selenide (H2Se) is an important metabolite of dietary Se compounds and has been implicated in various pathological and physiological processes. The development of highly sensitive and selective methods for the sensing of H2Se is therefore very important. Herein, we developed a fluorescent probe (hemicyanine (Hcy)-H2Se) for detecting H2Se based on a new H2Se-specific receptor unit, 1,2-dithiane-4,5-diol. Hcy-H2Se showed high selectivity toward H2Se over thiols (RSH), hydrogen sulfide (H2S), and selenocysteine (Sec) and was further exploited for the fluorescence imaging of H2Se both in living cells and in vivo...
December 15, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/27936678/copper-ii-activation-of-nitrite-nitrosation-of-nucleophiles-and-generation-of-no-by-thiols
#11
Subrata Kundu, William Y Kim, Jeffery A Bertke, Timothy H Warren
Nitrite (NO2(-)) and nitroso compounds (E-NO, E = RS, RO, and R2N) in mammalian plasma and cells serve important roles in nitric oxide (NO) dependent as well as NO independent signaling. Employing an electron deficient β-diketiminato copper(II) nitrito complex [Cl2NNF6]Cu(κ(2)-O2N)·THF, thiols mediate reduction of nitrite to NO. In contrast to NO generation upon reaction of thiols at iron nitrite species, at copper this conversion proceeds through nucleophilic attack of thiol RSH on the bound nitrite in [Cu(II)](κ(2)-O2N) that leads to S-nitrosation to give the S-nitrosothiol RSNO and copper(II) hydroxide [Cu(II)]-OH...
December 22, 2016: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/27867458/renal-subcapsular-hematoma-caused-by-hydrophilic-guide-wire-during-patent-ductus-arteriosus-closure
#12
Efe Edem, Harun Kilic, Alper Karacan, Ramazan Akdemir
Hydrophilic guide wire-associated renal subcapsular hematoma (RSH) during patent ductus arteriosus (PDA) closure is an extremely rare clinical condition. Herein, we present the case of a 16-year-old adolescent who suffered accidental hydrophilic 0.035-inch guide wire-related RSH during PDA closure. This RSH was diagnosed by computerized tomography and selective renal angiography. It was successfully treated by conservative treatment.
July 2016: Heart Views: the Official Journal of the Gulf Heart Association
https://www.readbyqxmd.com/read/27817165/obesity-is-not-a-descriptive-factor-for-oxidative-stress-and-viscosity-in-follicular-fluid-of-in-vitro-fertilization-patients
#13
B Yuksel, S Kilic, N Yilmaz, T Goktas, U Keskin, A Seven, M Ulubay, S Batioglu
BACKGROUND: Obesity's impact on micro-environmental oxidative stress and follicular fluid (FF) viscosity and whether or not it has any effect on in vitro fertilization (IVF) success is a matter of debate. AIMS: In this study, our aim was to evaluate the levels of oxidative stress markers and the FF viscosity in obese and non-obese patients. METHODS: Eighty norm-responder patients undergoing IVF were prospectively grouped according to their body mass indexes (BMI)...
November 5, 2016: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/27670814/signaling-by-sulfur-containing-molecules-quantitative-aspects
#14
Willem H Koppenol, Patricia L Bounds
There is currently interest in sulfur-containing molecules that may or may not play a role in signaling. We have collected relevant thermodynamic data, namely standard Gibbs energies of formation and electrode potentials at pH 7, and used these to construct a Frost diagram. Thermodynamic data not available in the literature could be estimated with reasonable confidence. At pH 7, the electrode potential of the RSS/RSS(-) couple is +0.68 V, 0.28 V less than that of the RS, H(+)/RSH couple. S2(-) is unstable with respect to HSS(-) and S2...
March 1, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/27662445/a-retrospective-study-to-reveal-factors-associated-with-postoperative-shoulder-imbalance-in-patients-with-adolescent-idiopathic-scoliosis-with-double-thoracic-curve
#15
Choon Sung Lee, Chang Ju Hwang, Eic Ju Lim, Dong-Ho Lee, Jae Hwan Cho
OBJECTIVE Postoperative shoulder imbalance (PSI) is a critical consideration after corrective surgery for a double thoracic curve (Lenke Type 2); however, the radiographic factors related to PSI remain unclear. The purpose of this study was to identify the radiographic factors related to PSI after corrective surgery for adolescent idiopathic scoliosis (AIS) in patients with a double thoracic curve. METHODS This study included 80 patients with Lenke Type 2 AIS who underwent corrective surgery. Patients were grouped according to the presence [PSI(+)] or absence [PSI(-)] of shoulder imbalance at the final follow-up examination (differences of 20, 15, and 10 mm were used)...
December 2016: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/27651980/spontaneous-rectus-sheath-hematoma-in-pregnancy-complicated-by-the-development-of-transfusion-related-acute-lung-injury-a-case-report-and-review-of-the-literature
#16
Jennifer Gibbs, Firas Bridges, Kiran Trivedi, John Vullo
BACKGROUND: Rectus sheath hematoma (RSH) represents a rare, but serious cause of abdominal pain. CASE: Here we discuss the case of a healthy multigravida female who presented at 28 weeks gestation with spontaneous RSH. Conservative management with multiple blood transfusions led to the development of transfusion related acute lung injury (TRALI) and intensive care unit admission. She was managed with noninvasive ventilatory support, gradually improved, and was weaned of ventilation...
July 2016: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/27636328/achieving-predictive-description-of-molecular-conductance-by-using-a-range-separated-hybrid-functional
#17
Atsushi Yamada, Qingguo Feng, Austin Hoskins, Kevin D Fenk, Barry D Dunietz
The conductance of molecular bridges tends to be overestimated by computational studies in comparison to measured values. While this well-established trend may be related to difficulties for achieving robust bridges, the employed computational scheme can also contribute to this tendency. In particular, caveats of the traditional functionals employed in first-principles-based calculations can lead to discrepancies reflected in exaggerated conductance. Here, we show that by employing a range-separated hybrid functional the calculated values are within the same order as the measured conductance for all four considered cases...
October 12, 2016: Nano Letters
https://www.readbyqxmd.com/read/27614419/gc-ecnici-ms-analysis-of-s-nitrosothiols-and-nitroprusside-after-treatment-with-aqueous-sulphide-s-2-and-derivatization-with-pentafluorobenzyl-bromide-evidence-of-s-transnitrosylation-and-formation-of-nitrite-and-nitrate
#18
Dimitrios Tsikas, Mario Schmidt, Erik Hanff, Anke Böhmer
A GC-MS method is reported for the quantitative analysis of S-nitrosothiols (RSNO) derived from endogenous low- and high-molecular mass thiols (RSH) including hemoglobin, cysteine, glutathione, N-acetylcysteine, and the exogenous N-acetylcysteine ethyl ester. The method is based on the conversion of RSNO to nitrite by aqueous Na2S (S(2-)). (15)N-Labelled analogs (RS(15)NO) or (15)N-labelled nitrite and nitrate were used as internal standards. The nitrite ((14)NO2(-) and (15)NO2(-)) and nitrate (O(14)NO2(-) and O(15)NO2(-) anions were derivatised by pentafluorobenzyl (PFB) bromide (PFB-Br) in aqueous acetone and their PFB derivatives were separated by gas chromatography...
February 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/27575868/reverse-split-hand-syndrome-dissociated-intrinsic-hand-muscle-atrophy-pattern-in-hirayama-disease-brachial-monomelic-amyotrophy
#19
Ravinder-Jeet Singh, Veeramani Preethish-Kumar, Kiran Polavarapu, Seena Vengalil, Chandrajit Prasad, Atchayaram Nalini
Preferential involvement of C7, C8, T1 level anterior horn cells is a typical feature in Hirayama disease/brachial monomelic amyotrophy (BMMA). There are no clinico-electrophysiological studies to substantiate the peculiar pattern of muscle involvement. Thirty subjects, 10 in each group of BMMA, amyotrophic lateral sclerosis (ALS) and age-matched normal healthy subjects underwent detailed clinical and electrophysiological testing. Results showed that the mean age at evaluation for BMMA and ALS patients was 25...
August 30, 2016: Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration
https://www.readbyqxmd.com/read/27573437/effects-of-an-extract-of-celtis-aetnensis-tornab-strobl-twigs-on-human-colon-cancer-cell-cultures
#20
Rosaria Acquaviva, Valeria Sorrenti, Rosa Santangelo, Venera Cardile, Barbara Tomasello, Giuseppe Malfa, Luca Vanella, Andrea Amodeo, Carlo Genovese, Silvana Mastrojeni, Michela Pugliese, Monica Ragusa, Claudia Di Giacomo
Cancers of the digestive tract, in particular colorectal cancer (CRC), are among those most responsive to dietary modification. Research has shown that approximately 75% of all sporadic cases of CRC are directly influenced by diet. Many natural compounds have been investigated for their potential usefulness as cancer chemopreventive agents as they have been thought to suppress carcinogenesis mainly during the initiation phase due to their radical scavenger activity. Since there is an increasing interest in the in vivo protective effects of natural compounds contained in plants against oxidative damage involved in several human diseases such as cancer, the aim of the present research was to test the effects of a Celtis aetnensis (Tornab...
October 2016: Oncology Reports
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