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https://www.readbyqxmd.com/read/28812867/ultrasensitive-silicon-nanowire-sensor-developed-by-a-special-ag-modification-process-for-rapid-nh3-detection
#1
Yuxiang Qin, Diao Liu, Tianyi Zhang, Zhen Cui
Surface functionalization is very effective in enhancing sensing properties of a chemiresistive gas sensor. In this work, we develop a novel and cost-effective process to prepare Ag-modified silicon nanowire (SiNW) sensors and further suggest a resistance effect model to clarify the enhanced sensing mechanism of Ag-modified SiNWs. The SiNWs were formed via metal-assisted chemical etching (MACE), and the Ag nanoparticle (NP) modification was achieved in situ based on the MACE-produced Ag dendrites by involving a crucial anisotropic postetching of TMAH...
August 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28810113/an-unusual-presentation-of-an-unusual-disease-spontaneous-pneumomediastinum
#2
Kalyan Chakravarthy Potu, Maheedhar Gedela, Kashif Abbas Shaikh, Sujithasree Ketineni, Eric Larson
We report a case of spontaneous pneumomediastinum with unusual clinical presentation. The most common symptoms of spontaneous mediastinum are chest pain and shortness of breath. Our patient presented with neck swelling and change in voice, an unusual presentation for spontaneous pneumothorax. A 30-year-old previously healthy man presented with complaints of neck swelling and hoarseness of voice beginning after an intense coughing spell. He had no other complaints. He denied any trauma to the chest, nausea, vomiting, recent air travel, scuba diving or recreational drug use...
November 2016: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28808847/evaluation-of-hyoscine-n-butyl-bromide-efficacy-on-the-prevention-of-catheter-related-bladder-discomfort-after-transurethral-resection-of-prostate-a-randomized-double-blind-control-trial
#3
Golnar Sabetian, Farid Zand, Elham Asadpour, Mohammad Ghorbani, Pourya Adibi, Mohammad Mehdi Hosseini, Shahryar Zeyghami, Farzaneh Masihi
BACKGROUND: Transurethral resection of prostate (TURP) is the most common treatment for benign prostatic hyperplasia (BPH). Urinary tract catheter is inserted post-operatively which results in catheter-related bladder discomfort (CRBD) in many patients. The purpose of this study was to assess the preventive effect of hyoscine N-butyl bromide on CRBD caused by a urinary tract catheter after TURP surgery in patients with BPH. METHODS: Twenty-four and twenty-six patients in the treatment and control groups were enrolled, respectively...
August 14, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28808287/rare-earth-extraction-from-ndfeb-magnet-using-a-closed-loop-acid-process
#4
Jiro Kitagawa, Ryohei Uemura
There is considerable interest in extraction of rare earth elements from NdFeB magnets to enable recycling of these elements. In practical extraction methods using wet processes, the acid waste solution discharge is a problem that must be resolved to reduce the environmental impact of the process. Here, we present an encouraging demonstration of rare earth element extraction from a NdFeB magnet using a closed-loop hydrochloric acid (HCl)-based process. The extraction method is based on corrosion of the magnet in a pretreatment stage and a subsequent ionic liquid technique for Fe extraction from the HCl solution...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28806177/laryngeal-mask-airway-embedded-with-pharyngeal-suction-catheters-for-rhinoplasty-a-case-report
#5
Gary X Zhou
A flexible laryngeal mask airway device (LMAD) embedded with 2 pharyngeal suction catheters was used for a young female patient who underwent a revision rhinoplasty, septoplasty, and chin implant. The modified LMAD was constructed by attaching 2 suction catheters onto the back of the mask; it functioned well without signs of malfunction or complications, with a total of 71 mL of blood evacuated from the pharyngeal area during the five and a half hour surgery. The patient emerged from anesthesia without coughing or straining, and reported no sore throat or nausea/vomiting in the recovery room...
August 10, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28805455/the-effect-of-a-peer-support-intervention-on-early-recovery-outcomes-in-men-recovering-from-coronary-bypass-surgery-a-randomized-controlled-trial
#6
Tracey Jf Colella, Kathryn King-Shier
BACKGROUND AND AIM: Examine the effect of a professionally-guided telephone peer support intervention on recovery outcomes including depression, perceived social support, and health services utilization after coronary artery bypass graft surgery (CABG). METHODS: A randomized controlled trial was conducted with post-coronary artery bypass graft surgery men ( N=185) who were randomized before hospital discharge. The intervention arm received telephone-based peer support through weekly telephone calls from a peer volunteer over six weeks, initiated within 3-4 days of discharge...
August 1, 2017: European Journal of Cardiovascular Nursing
https://www.readbyqxmd.com/read/28803763/laboratory-simulations-of-the-mixed-solvent-extraction-recovery-of-dominate-polymers-in-electronic-waste
#7
Yi-Bo Zhao, Xu-Dong Lv, Wan-Dong Yang, Hong-Gang Ni
The recovery of four dominant plastics from electronic waste (e-waste) using mixed solvent extraction was studied. The target plastics included polycarbonate (PC), polystyrene (PS), acrylonitrile butadiene styrene (ABS), and styrene acrylonitrile (SAN). The extraction procedure for multi-polymers at room temperature yielded PC, PS, ABS, and SAN in acceptable recovery rates (64%, 86%, 127%, and 143%, respectively, where recovery rate is defined as the mass ratio of the recovered plastic to the added standard polymer)...
August 10, 2017: Waste Management
https://www.readbyqxmd.com/read/28803682/volumetric-absorptive-microsampling-current-advances-and-applications
#8
REVIEW
Miranda G M Kok, Marianne Fillet
Recently, volumetric absorptive microsampling (VAMS) has been introduced for the sampling of biological fluids, and more particularly whole blood, on a porous hydrophilic tip. VAMS enables the collection of small, accurate and precise blood volumes (10 or 20μL) regardless of the hematocrit. After drying, the samples can be stored or directly analyzed. The stability of various compounds in dried samples supported on VAMS tips varies from one day to a few months at room temperature, and increases at lower temperatures...
July 27, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28802619/sugammadex-efficacy-for-reversal-of-rocuronium-and-vecuronium-induced-neuromuscular-blockade-a-pooled-analysis-of-26-studies
#9
William Joseph Herring, Tiffany Woo, Christopher A Assaid, Robert J Lupinacci, Hendrikus J Lemmens, Manfred Blobner, Karin S Khuenl-Brady
STUDY OBJECTIVE: To summarize and compare efficacy of sugammadex with neostigmine or placebo for reversal of rocuronium- or vecuronium-induced neuromuscular blockade (NMB), and to demonstrate consistency of sugammadex results across various patient populations. DESIGN: Pooled analysis on data from 26 multicenter, randomized, Phase II and III studies. SETTING: Operating room. PATIENTS: 1855 adults undergoing surgery under general anesthesia and receiving rocuronium or vecuronium for NMB...
September 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28800063/fabrication-and-characterization-of-flexible-and-miniaturized-humidity-sensors-using-screen-printed-tio%C3%A2-nanoparticles-as-sensitive-layer
#10
Georges Dubourg, Apostolos Segkos, Jaroslav Katona, Marko Radović, Slavica Savić, Georgios Niarchos, Christos Tsamis, Vesna Crnojević-Bengin
This paper describes the fabrication and the characterization of an original example of a miniaturized resistive-type humidity sensor, printed on flexible substrate in a large-scale manner. The fabrication process involves laser ablation for the design of interdigitated electrodes on PET (Poly-Ethylene Terephthalate) substrate and a screen-printing process for the deposition of the sensitive material, which is based on TiO₂ nanoparticles. The laser ablation process was carefully optimized to obtain micro-scale and well-resolved electrodes on PET substrate...
August 11, 2017: Sensors
https://www.readbyqxmd.com/read/28794524/an-analysis-of-the-predictors-of-mortality-and-morbidity-in-patients-admitted-after-suicidal-hanging-to-an-indian-multidisciplinary-intensive-care-unit
#11
M K Renuka, M S Kalaiselvan, A S Arunkumar
BACKGROUND AND AIMS: Hanging is a frequently used method to attempt suicide in India. There is a lack of data in the Indian population regarding clinical features and outcomes of suicidal hanging. The purpose of this study was to evaluate the factors affecting mortality and morbidity in patients admitted with suicidal hanging to the Intensive Care Unit (ICU). METHODS: A 6-year retrospective study of adult patients admitted to the ICU with suicidal hanging was analysed for demographics, mode of hanging, lead time to emergency room (ER) admission, clinical presentation, Acute Physiology and Chronic Health Evaluation II (APACHE II) and Sequential Organ Failure Assessment (SOFA) scores, admission Glasgow coma scale (GCS) and neurological outcomes...
July 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28792962/aberrant-cgmp-signaling-persists-during-recovery-in-mice-with-oxygen-induced-pulmonary-hypertension
#12
Marta Perez, Keng Jin Lee, Herminio J Cardona, Joann M Taylor, Mary E Robbins, Gregory B Waypa, Sara K Berkelhamer, Kathryn N Farrow
Bronchopulmonary dysplasia (BPD), a common complication of preterm birth, is associated with pulmonary hypertension (PH) in 25% of infants with moderate to severe BPD. Neonatal mice exposed to hyperoxia for 14d develop lung disease similar to BPD, with evidence of associated PH. The cyclic guanosine monophosphate (cGMP) signaling pathway has not been well studied in BPD-associated PH. In addition, there is little data about the natural history of hyperoxia-induced PH in mice or the utility of phosphodiesterase-5 (PDE5) inhibition in established disease...
2017: PloS One
https://www.readbyqxmd.com/read/28791441/postoperative-pain-control-by-intercostal-nerve-block-after-augmentation-mammoplasty
#13
Chang Min Kang, Woo Jeong Kim, Sean Hyuck Yoon, Chul Bum Cho, Jeong Su Shim
BACKGROUND: In breast augmentation with implant, there is severe pain due to damage from expansion of breast tissue and the pectoralis major. Therefore, the authors conducted this study to analyze the effectiveness of postoperative intercostal nerve block (ICNB) in reducing postoperative pain after breast augmentation with implant. METHOD: Forty-four female patients were enrolled in the study. Just before awaking from general anesthesia, 34 cases were injected with 0...
August 8, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28790290/-postoperative-intrathoracic-hemorrhage-perioperative-prevention-and-management
#14
Yoshimasa Maniwa
Postoperative intrathoracic hemorrhage is sometimes diagnosed in the thoracic cavity, while the patient is in the recovery room after undergoing thoracic surgery such as lung resection with thoracotomy or mediastinal surgery with a median sternotomy. The information from the chest tube is important to identify this kind of postoperative complication. When the condition becomes severe, the patient may develop hemorrhagic shock due to hemothorax and re-exploration to assess for bleeding and hemostasis may be required...
July 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28782854/an-ultrasensitive-organic-semiconductor-no2-sensor-based-on-crystalline-tips-pentacene-films
#15
Zi Wang, Lizhen Huang, Xiaofei Zhu, Xu Zhou, Lifeng Chi
Organic semiconductor gas sensor is one of the promising candidates of room temperature operated gas sensors with high selectivity. However, for a long time the performance of organic semiconductor sensors, especially for the detection of oxidizing gases, is far behind that of the traditional metal oxide gas sensors. Although intensive attempts have been made to address the problem, the performance and the understanding of the sensing mechanism are still far from sufficient. Herein, an ultrasensitive organic semiconductor NO2 sensor based on 6,13-bis(triisopropylsilylethynyl)-pentacene (TIPS-petacene) is reported...
August 7, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28776222/-surgical-techniques-for-severe-brain-injury-with-special-emphasis-on-polytrauma
#16
REVIEW
Georg C Clarici
CLINICAL ISSUE: In Austria approximately 2000 people suffer from severe brain injury per year. Brain trauma is the most common cause of death under the age of 45 years. In polytrauma patients the treatment and management of severe brain injury is particularly challenging because the life-threatening injuries of other organ systems significantly influence the timing of surgery and the outcome. The sequence of the necessary surgery is an interdisciplinary decision already made in the emergency room...
August 3, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28772895/a-fast-humidity-sensor-based-on-li%C3%A2-%C2%BA-doped-sno%C3%A2-one-dimensional-porous-nanofibers
#17
Min Yin, Fang Yang, Zhaojie Wang, Miao Zhu, Ming Liu, Xiuru Xu, Zhenyu Li
One-dimensional SnO₂- and Li⁺-doped SnO₂ porous nanofibers were easily fabricated via electrospinning and a subsequent calcination procedure for ultrafast humidity sensing. Different Li dopant concentrations were introduced to investigate the dopant's role in sensing performance. The response properties were studied under different relative humidity levels by both statistic and dynamic tests. The best response was obtained with respect to the optimal doping of Li⁺ into SnO₂ porous nanofibers with a maximum 15 times higher response than that of pristine SnO₂ porous nanofibers, at a relative humidity level of 85%...
May 16, 2017: Materials
https://www.readbyqxmd.com/read/28772627/bppo-based-anion-exchange-membranes-for-acid-recovery-via-diffusion-dialysis
#18
Muhammad Imran Khan, Rafael Luque, Pepijn Prinsen, Aziz Ur Rehman, Saima Anjum, Muhammad Nawaz, Aqeela Shaheen, Shagufta Zafar, Mujahid Mustaqeem
To reduce the environmental impact of acids present in various industrial wastes, improved and robust anion exchange membranes (AEMs) are highly desired. Moreover, they should exhibit high retention of salts, fast acid permeation and they should be able to operate with low energy input. In this work, AEMs are prepared using a facile solution-casting from brominated poly-(2,6-dimethyl-1,4-phenylene oxide) (BPPO) and increasing amounts of 2-phenylimidazole (PI). Neither quaternary ammonium salts, nor ionic liquids and silica-containing compounds are involved in the synthesis...
March 7, 2017: Materials
https://www.readbyqxmd.com/read/28770983/hierarchical-and-hollow-fe2o3-nano-boxes-derived-from-metal-organic-frameworks-with-excellent-sensitivity-to-h2s
#19
Kuan Tian, Xiao-Xue Wang, Zhu-Ying Yu, Huayao Li, Xin Guo
Hierarchical and hollow porous Fe2O3 nano-boxes (with an average edge length of ~500 nm) were derived from metal-organic frameworks (MOFs) and the gas sensing characteristics were investigated. Sensors based on Fe2O3 nano-boxes exhibited a response (resistance ratio) of 1.23 to 0.25 parts per million (ppm) hydrogen sulfide (H2S) at 200 °C, the response/recovery speed is fast and the selectivity to H2S is excellent. Remarkably, the sensor showed fully reversible response to 5 ppm H2S at 50 °C, demonstrating its promise for operating at near room temperature, which is favourable for medical diagnosis and indoor/outdoor environment monitoring...
August 3, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28770895/hydrogen-sulfide-gas-poisoning-in-fish-garbage-room-a-report-of-a-fisherman
#20
Sadaf Sheikh, Muhammad Akbar Baig, Noman Ali, NadeemUllah Khan
We report the case of a fisherman who was exposed to high concentrations of hydrogen sulfide (H2S) gas from the fish garbage room. The patient survived and was discharged with full recovery from the hospital. H2S is a colourless, foul smelling and highly toxic gas next to carbon monoxide, which causes inhalation death. It is a by-product of various industrial processes particularly involves exposure from agriculture, petrochemical industry and organic matter decomposition from sewage processing. It is a by-product of H2S has been referred as the "knock down gas" because inhalation of high concentrations can cause immediate loss of consciousness and death...
July 2017: JPMA. the Journal of the Pakistan Medical Association
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