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https://www.readbyqxmd.com/read/28936513/solar-cells-with-pbs-quantum-dot-sensitized-tio2-multiwalled-carbon-nanotube-composites-sulfide-titania-gel-and-tin-sulfide-coated-c-fabric
#1
Ramesh K Kokal, Melepurath Deepa, Ankarao Kalluri, Shrishti Singh, Isaac Macwan, Prabir K Patra, Jeff Gilarde
Novel approaches to boost quantum dot solar cell (QDSC) efficiencies are in demand. Herein, three strategies are used: (i) a hydrothermally synthesized TiO2-multiwalled carbon nanotube (MWCNT) composite instead of conventional TiO2, (ii) a counter electrode (CE) that has not been applied to QDSCs until now, namely, tin sulfide (SnS) nanoparticles (NPs) coated over a conductive carbon (C)-fabric, and (iii) a quasi-solid-state gel electrolyte composed of S(2-), an inert polymer and TiO2 nanoparticles as opposed to a polysulfide solution based hole transport layer...
September 22, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28926998/a-new-hydrogen-sensor-based-on-sns-fiber-interferometer-with-pd-wo%C3%A2-coating
#2
Jinxin Shao, Wenge Xie, Xi Song, Yanan Zhang
This paper presents a new hydrogen sensor based on a single mode-no core-single mode (SNS) fiber interferometer structure. The surface of the no core fiber (NCF) was coated by Pd/WO₃ film to detect the variation of hydrogen concentration. If the hydrogen concentration changes, the refractive index of the Pd/WO₃ film as well as the boundary condition for light propagating in the NCF will all be changed, which will then cause a shift into the resonant wavelength of interferometer. Therefore, the hydrogen concentration can be deduced by measuring the shift of the resonant wavelength...
September 18, 2017: Sensors
https://www.readbyqxmd.com/read/28922955/comparison-of-zfns-versus-crispr-specific-nucleases-for-genome-edition-of-the-wiskott-aldrich-syndrome-locus
#3
Alejandra Gutierrez-Guerrero, Sabina Sanchez-Hernandez, Giuseppe Galvani, Javier Pinedo-Gomez, Almudena Sanchez-Gilabert, Rocio Martin-Guerra, Marien Cobo, Philip Gregory, Michael Holmes, Karim Benabdellah, Francisco Martin
Primary immunodeficiencies (PID), including Wiskott-Aldrich syndrome (WAS), are a main target for genome editing (GE) strategies using specific nucleases (SNs) since a small number of corrected hematopoietic stem cells (HSCs) could cure patients. In this work, we have designed different WAS gene-specific CRISPR/Cas9 systems and compared their efficiency and specificity with homodimeric and heterodimeric WAS-specific Zinc Finger Nucleases (ZFNs) using K562 cells as a cellular model and plasmid nucleofection or integrative-deficient Lentiviral Vectors (IDLVs) for delivery...
September 19, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28912071/sentinel-node-biopsy-after-primary-chemotherapy-in-ct2-n0-1-breast-cancer-patients-long-term-results-of-a-retrospective-study
#4
G Martelli, R Miceli, S Folli, E Guzzetti, C Chifu, I Maugeri, C Ferranti, G Bianchi, G Capri, M L Carcangiu, B Paolini, R Agresti, C Ferraris, D Piromalli, M Greco
BACKGROUND: It is controversial whether sentinel node biopsy (SNB) is adequate in breast cancer patients who become cN0 after primary chemotherapy. To address this we retrospectively compared outcomes in T2 cases given primary chemotherapy, comparing those given axillary dissection (AD) with those given SNB but no AD if sentinel nodes were clinically negative post-chemotherapy. METHODS: We examined overall survival (OS), disease-free survival (DFS), and axillary failure in 317 consecutive cT2 cN0/1 patients given primary chemotherapy followed by quadrantectomy/mastectomy, between January 2002 and December 2007...
August 10, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28910502/using-narrative-inquiry-to-listen-to-the-voices-of-adolescent-mothers-in-relation-to-their-use-of-social-networking-sites-sns
#5
Samantha Nolan, Joyce Hendricks, Moira Williamson, Sally Ferguson
AIM: This article presents a discussion highlighting the relevance and strengths of using narrative inquiry to explore experiences of social networking site (SNS) use by adolescent mothers. BACKGROUND: Narrative inquiry as a method reveals truths about holistic human experience. Knowledge gleaned from personal narratives informs nursing knowledge and clinical practice. This approach gives voice to adolescent mothers in relation to their experiences with SNS as a means of providing social support...
September 14, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/28895875/strong-second-harmonic-generation-in-two-dimensional-ferroelectric-iv-monochalcogenides
#6
Suman Raj Panday, Benjamin M Fregoso
The two-dimensional ferroelectrics GeS, GeSe, SnS and SnSe are expected to have large spontaneous in-plane electric polarization and enhanced shift-current response. Using density functional methods, we show that these materials also exhibit the largest effective second harmonic generation reported so far. It can reach magnitudes up to 10 nm/V which is about an order of magnitude larger than that of prototypical GaAs. To rationalize this result we model the optical response with a simple one-dimensional two-band model along the spontaneous polarization direction...
September 12, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28895542/selective-sentinel-lymph-node-biopsy-in-papillary-thyroid-carcinoma-in-patients-with-no-preoperative-evidence-of-lymph-node-metastasis
#7
Óscar González, Carles Zafon, Enric Caubet, Amparo García-Burillo, Xavier Serres, José Manuel Fort, Jordi Mesa, Joan Castell, Isabel Roca, Santiago Ramón Y Cajal, Carmela Iglesias
INTRODUCTION: Lymphadenectomy is recommended during surgery for papillary thyroid carcinoma when there is evidence of cervical lymph node metastasis (therapeutic) or in high-risk patients (prophylactic) such as those with T3 and T4 tumors of the TNM classification. Selective sentinel lymph node biopsy may improve preoperative diagnosis of nodal metastases. OBJECTIVE: To analyze the results of selective sentinel lymph node biopsy in a group of patients with papillary thyroid carcinoma and no evidence of nodal involvement before surgery...
October 2017: Endocrinología, diabetes y nutrición
https://www.readbyqxmd.com/read/28895395/thermoelectric-properties-of-sns-with-na-doping
#8
Binqiang Zhou, Shuai Li, Wen Li, Juan Li, Xinyue Zhang, Siqi Lin, Zhiwei Chen, Yanzhong Pei
Tin sulfide (SnS), a low-cost compound from the IV-VI semiconductors, has attracted particular attention due to its great potential for large-scale thermoelectric applications. However, pristine SnS shows a low carrier concentration, which leads to a low thermoelectric performance. In this work, sodium is utilized to substitute Sn to increase the hole concentration and consequently improve the thermoelectric power factor. The resultant Hall carrier concentration up to ∼10(19) cm(-3) is the highest concentration reported so far for this compound...
September 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28894070/-the-effects-of-mobile-social-networking-service-based-cognitive-behavior-therapy-on-insomnia-in-nurses
#9
Ji Eun Kim, Suk Sun Kim
PURPOSE: This study aimed to examine the effects of cognitive behavior therapy for insomnia (CBT-I) based on the mobile social networking service (SNS) on dysfunctional beliefs and attitudes about sleep, sleep quality, daytime sleepiness, depression, and quality of life among rotating-shift nurses in a hospital in Korea. METHODS: A nonequivalent control group pre-post test design was used. The participants included 55 nurses with rotating three-shift work (25 in the experimental group and 30 in the control group)...
August 2017: Journal of Korean Academy of Nursing
https://www.readbyqxmd.com/read/28893245/age-dependent-redox-status-in-the-brain-stem-of-no-deficient-hypertensive-rats
#10
Miroslava Majzúnová, Zuzana Pakanová, Peter Kvasnička, Peter Bališ, Soňa Čačányiová, Ima Dovinová
BACKGROUND: The brain stem contains important nuclei that control cardiovascular function via the sympathetic nervous system (SNS), which is strongly influenced by nitric oxide. Its biological activity is also largely determined by oxygen free radicals. Despite many experimental studies, the role of AT1R-NAD(P)H oxidase-superoxide pathway in NO-deficiency is not yet sufficiently clarified. We determined changes in free radical signaling and antioxidant and detoxification response in the brain stem of young and adult Wistar rats during chronic administration of exogenous NO inhibitors...
September 11, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28885782/evaluation-of-pulse-width-of-spinal-nerve-stimulation-in-a-rat-model-of-bladder-micturition-reflex
#11
Xin Su, Heather A Simenson, David A Dinsmoor, Heather D Orser
OBJECTIVES: The spinal nerve stimulation (SNS) evoked motor threshold (Tmot ) response across different pulse-widths (PWs) was first explored and a subset of selected stimulation PWs were further assessed with respect to bladder reflex contraction (BRC). MATERIALS AND METHODS: In anesthetized female rats, wire electrodes were placed under each of the L6 spinal nerves to produce bilateral SNS. The relationship of Tmot response with PW was analyzed using a monoexponential nonlinear regression...
September 8, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28885013/facile-bulk-synthesis-of-%C3%AF-cubic-sns
#12
Joachim Breternitz, René Gunder, Hannes Hempel, Silvia Binet, Susan Schorr
The cubic modification of binary tin sulfide (SnS) has gained significant interest as an earth-abundant, low-toxicity solar absorber material with a band gap close to the optimal value for the conversion of sunlight. We herein report a simple synthesis for the metastable material, which will allow more elaborate characterization methods to be used on this material, and present a full powder refinement of the material along with some preliminary results on the optical and thermal stability properties.
September 8, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28884709/hydrothermal-synthesis-of-snq-q-te-se-s-and-their-thermoelectric-properties
#13
Dan Feng, Zhenhua Ge, Yuexing Chen, Ju Li, Jiaqing He
Lead-free IV-VI semiconductors SnQ (Q=Te, Se, S) are deemed as promising thermoelectric materials. In this work, we designed a hydrothermal route to selectively synthesize single phase SnTe, SnSe and SnS nanopowders. For all three samples, the phase structure were characterized by X-ray diffraction, SnTe particles with octahedron structure and SnSe/SnS particles with plate-like shape were observed by field emission scanning electron microscopy and transmission electron microscopy, the formation mechanism was discussed in detail...
September 8, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28883863/the-evolution-of-natriuretic-peptide-augmentation-in-management-of-heart-failure-and-the-role-of-sacubitril-valsartan
#14
Srikanth Yandrapalli, Wilbert S Aronow, Pratik Mondal, David R Chabbott
Heart failure (HF) is one of the leading causes of morbidity, mortality, and health care expenditures in the US and worldwide. For three decades, the pillars of treatment of HF with reduced ejection fraction (HFrEF) were medications that targeted the sympathetic nervous system (SNS) and the renin-angiotensin-aldosterone system (RAAS). Prior attempts to augment the natriuretic peptide system (NPS) for the management of HF failed either due to lack of significant clinical benefit or due to the unacceptable side effect profile...
August 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28859876/genetics-based-manipulation-of-adipose-tissue-sympathetic-innervation
#15
REVIEW
Marie François, Emily Qualls-Creekmore, Hans-Rudolf Berthoud, Heike Münzberg, Sangho Yu
There is renewed interest in leveraging the thermogenic capacity of brown adipose tissue (BAT) and browning of white adipose tissue (WAT) to improve energy balance and prevent obesity. In addition to these effects on energy expenditure, both BAT and WAT secrete large numbers of hormones and cytokines that play important roles in maintaining metabolic health. Both BAT and WAT are densely innervated by the sympathetic nervous system (SNS) and this innervation is crucial for BAT thermogenesis and WAT browning, making it a potentially interesting target for manipulating energy balance and treatment of obesity and metabolic disease...
August 30, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28855358/thermal-facial-reactivity-patterns-predict-social-categorization-bias-triggered-by-unconscious-and-conscious-emotional-stimuli
#16
Giorgia Ponsi, Maria Serena Panasiti, Giulia Rizza, Salvatore Maria Aglioti
Members of highly social species decode, interpret, and react to the emotion of a conspecific depending on whether the other belongs to the same (ingroup) or different (outgroup) social group. While studies indicate that consciously perceived emotional stimuli drive social categorization, information about how implicit emotional stimuli and specific physiological signatures affect social categorization is lacking. We addressed this issue by exploring whether subliminal and supraliminal affective priming can influence the categorization of neutral faces as ingroup versus outgroup...
August 30, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28854971/sini-san-improves-duodenal-tight-junction-integrity-in-a-rat-model-of-functional-dyspepsia
#17
Xiongfei Chang, Luqing Zhao, Jiajia Wang, Xiaofang Lu, Shengsheng Zhang
BACKGROUND: Recent reports have demonstrated that impaired barrier function and local microinflammation in the duodenal mucosa contribute to the pathogeneses of functional dyspepsia (FD). Thus, restoring normal barrier integrity becomes a potential therapeutic strategy in the treatment of FD. Sini-San (SNS) is a traditional Chinese prescription that exhibits therapeutic effects in FD, but the underlying mechanisms remain not well understood. METHODS: FD rats were established by tail clamping method and the therapeutic effect of SNS was evaluated by measuring the visceral sensitivity and gastric compliance...
August 30, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28853280/highly-sensitive-flexible-photodetectors-based-on-self-assembled-tin-monosulfide-nanoflakes-with-graphene-electrodes
#18
Ganesan Mohan Kumar, Xiao Fu, Pugazhendi Ilanchezhiyan, Shavkat U Yuldashev, Dong Jin Lee, Hak Dong Cho, Tae Won Kang
Tin monosulfide (SnS) nanostructures have attracted huge attention recently because of their high absorption coefficient, high photoconversion efficiencies, low energy cost, ease of deposition, and so on. Here, in this paper, we report on the low-cost hydrothermal synthesis of the self-assembled SnS nanoflake-like structures in terms of performance for the photodetectors. High-performance photodetectors were fabricated using SnS nanoflakes as active layers and graphene as the lateral electrodes. The SnS photodetectors exhibited excellent photoresponse properties with a high responsivity of 1...
September 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28844335/sacubitril-valsartan-an-important-piece-in-the-therapeutic-puzzle-of-heart-failure
#19
REVIEW
Pedro Marques da Silva, Carlos Aguiar
Sacubitril/valsartan (LCZ696), a supramolecular sodium salt complex of the neprilysin inhibitor prodrug sacubitril and the angiotensin receptor blocker (ARB) valsartan, was recently approved in the EU and the USA for the treatment of chronic heart failure (HF) with reduced ejection fraction (HFrEF) (NYHA class II-IV). Inhibition of chronically activated neurohormonal pathways (the renin-angiotensin-aldosterone system [RAAS] and sympathetic nervous system [SNS]) is central to the treatment of chronic HFrEF. Furthermore, enhancement of the natriuretic peptide (NP) system, with favorable cardiovascular (CV) and renal effects in HF, is a desirable therapeutic goal to complement RAAS and SNS blockade...
August 23, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28830189/toward-the-laboratory-identification-of-the-not-so-simple-ns2-neutral-and-anion-isomers
#20
Ryan C Fortenberry, Russell Thackston, Joseph S Francisco, Timothy J Lee
The NS2 radical is a simple arrangement of atoms with a complex electronic structure. This molecule was first reported by Hassanzadeh and Andrew's group [J. Am. Chem. Soc. 114, 83 (1992)] through Ar matrix isolation experiments. In the quarter century since this seminal work was published, almost nothing has been reported about nitrogen disulfide even though NS2 is isovalent with the common NO2. The present study aims to shed new insight into possible challenges with the characterization of this radical. No less than three potential energy surfaces all intersect in the C2v region of the SNS radical isomer...
August 21, 2017: Journal of Chemical Physics
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