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https://www.readbyqxmd.com/read/28394558/metal-organic-frameworks-derived-okra-like-sno2-encapsulated-in-nitrogen-doped-graphene-for-lithium-ion-battery
#1
Xiangyang Zhou, Sanmei Chen, Juan Yang, Tao Bai, Yongpeng Ren, Hangyu Tian
A facile process is developed to prepare SnO2-based composites through using metal-organic frameworks (MOFs) as precursors. The nitrogen-doped graphene wrapped okra-like SnO2 composites (SnO2@N-RGO) are successfully synthesized for the first time by using Sn-based metal-organic frameworks (Sn-MOF) as precursors. When utilized as an anode material for lithium-ion batteries, the SnO2@N-RGO composites possess a remarkably superior reversible capacity of 1041 mA h g(-1) at a constant current of 200 mA g(-1) after 180 charge-discharge processes and excellent rate capability...
April 13, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28376872/barriers-and-facilitators-to-improve-safety-and-efficiency-of-the-icu-discharge-process-a-mixed-methods-study
#2
Nelleke van Sluisveld, Anke Oerlemans, Gert Westert, Johannes Gerardus van der Hoeven, Hub Wollersheim, Marieke Zegers
BACKGROUND: Evidence indicates that suboptimal clinical handover from the intensive care unit (ICU) to general wards leads to unnecessary ICU readmissions and increased mortality. We aimed to gain insight into barriers and facilitators to implement and use ICU discharge practices. METHODS: A mixed methods approach was conducted, using 1) 23 individual and four focus group interviews, with post-ICU patients, ICU managers, and nurses and physicians working in the ICU or general ward of ten Dutch hospitals, and 2) a questionnaire survey, which contained 27 statements derived from the interviews, and was completed by 166 ICU physicians (21...
April 4, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28371673/porous-cofe2o4-nanocubes-derived-from-metal-organic-frameworks-as-high-performance-anode-for-sodium-ion-batteries
#3
Xiaojie Zhang, Dongsheng Li, Guang Zhu, Ting Lu, Likun Pan
Recently sodium ion batteries (SIBs) as a new energy storage system have attracted enormous interests. Unfortunately, the development of high-performance electrode materials for SIBs is restricted owing to the large volume change during sodium insertion and extraction. In this work, porous CoFe2O4 nanocubes (PCFO-NCs) were prepared simply by annealing metal-organic frameworks and used as anode materials for SIBs. The PCFO-NCs exhibit a high initial Coulombic efficiency of 68.8% and a maximum reversible capacity of 360mAhg(-1) after 50 cycles at the current density of 50mAg(-1), as well as good rate capability and excellent cycling stability at high current density...
March 27, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28370537/an-innovative-freeze-dried-reduced-graphene-oxide-supported-sns2-cathode-active-material-for-aluminum-ion-batteries
#4
Yuxiang Hu, Bin Luo, Delai Ye, Xiaobo Zhu, Miaoqiang Lyu, Lianzhou Wang
Rechargeable aluminum-ion batteries (AIBs) are attractive new generation energy storage devices due to its low cost, high specific capacity, and good safety. However, the lack of suitable electrode materials with high capacity and enhanced rate performance makes it difficult for real applications. Herein, the preparation of 3D reduced graphene oxide-supported SnS2 nanosheets hybrid is reported as a new type of cathode material for AIBs. The resultant material demonstrates one of the highest capacities of 392 mAh g(-1) at 100 mA g(-1) and good cycling stability...
March 29, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28370522/in-situ-formation-of-co9s8-n-c-hollow-nanospheres-by-pyrolysis-and-sulfurization-of-zif-67-for-high-performance-lithium-ion-batteries
#5
Peiyuan Zeng, Jianwen Li, Ming Ye, Kaifeng Zhuo, Zhen Fang
Co9S8 is considered to be a promising candidate as the anode material in lithium-ion batteries (LIBs) because of its remarkable electrical conductivity, high theoretical capacity and low cost. However, the practical application of Co9S8 is greatly restricted because of its poor cycling stability and rate performance, which mainly result from the large volume expansion and dissolution of the polysulfide intermediates during the charge/discharge process. In this report, Co9S8 embedded in N-rich carbon hollow spheres were successfully designed and synthesized via an in-situ pyrolysis and sulfurization process, employing the well-known ZIF-67 as the precursor and ethanethiol as the sulfur source...
April 3, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28359707/evidence-based-practice-video-discharge-instructions-in-the-pediatric-emergency-department
#6
Elyssa B Wood, Gina Harrison, Amber Trickey, Mary Ann Friesen, Sarah Stinson, Erin Rovelli, Serena McReynolds, Kristina Presgrave
While a high quality discharge from a Pediatric Emergency Department helps caregivers feel informed and prepared to care for their sick child at home, poor adherence to discharge instructions leads to unnecessary return visits, negative health outcomes, and decreased patient satisfaction. Nurses at the Inova Loudoun Pediatric ED utilized the Johns Hopkins Model of Evidence Based Practice to answer the following question: Among caregivers who have children discharged from the ED, does the addition of video discharge instructions (VDI) to standard written/verbal discharge instructions (SDI) result in improved knowledge about the child's diagnosis, treatment, illness duration, and when to seek further medical care? METHODS: A multidisciplinary team reviewed available evidence and created VDI for three common pediatric diagnoses: gastroenteritis, bronchiolitis, and fever...
March 28, 2017: Journal of Emergency Nursing: JEN: Official Publication of the Emergency Department Nurses Association
https://www.readbyqxmd.com/read/28349373/a-time-motion-study-of-residents-and-medical-students-performing-patient-discharges-from-general-internal-medicine-wards-a-disjointed-interrupted-process
#7
Arjun Sharma, Vivian Lo, Lauren Lapointe-Shaw, Christine Soong, Peter Eugene Wu, Robert Clark Wu
Patients are at high risk for adverse events after discharge from a hospital admission. As a critical and often time-consuming aspect of care for hospitalized patients, the purpose of this study was to describe the physician time, events and workflow in performing a patient discharge. On General Internal Medicine (GIM) wards at two academic medical centers in Toronto, a time-motion study was performed on 11 residents and 2 medical students performing 32 patient discharges. Using a paper data collection tool, a research associate aimed to capture the distribution of activities and the nature and frequency of workflow interruptions during patient discharges from the perspective of resident and medical student housestaff...
March 27, 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28337972/silicon-hollow-sphere-anode-with-enhanced-cycling-stability-by-a-template-free-method
#8
Song Chen, Zhuo Chen, Yunjun Luo, Min Xia, Chuanbao Cao
Silicon is a promising alternative anode material since it has a ten times higher theoretical specific capacity than that of a traditional graphite anode. However, the poor cycling stability due to the huge volume change of Si during charge/discharge processes has seriously hampered its widespread application. To address this challenge, we design a silicon hollow sphere nanostructure by selective etching and a subsequent magnesiothermic reduction. The Si hollow spheres exhibit enhanced electrochemical properties compared to the commercial Si nanoparticles...
April 21, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28331503/integrating-smartphone-technology-at-the-time-of-discharge-from-a-child-and-adolescent-inpatient-psychiatry-unit
#9
Jonathan M Gregory, Javeed Sukhera, Melissa Taylor-Gates
OBJECTIVE: As smartphone technology becomes an increasingly important part of youth mental health, there has been little to no examination of how to effectively integrate smartphone-based safety planning with inpatient care. Our study sought to examine whether or not we could effectively integrate smartphone-based safety planning into the discharge process on a child and adolescent inpatient psychiatry unit. METHOD: Staff members completed a survey to determine the extent of smartphone ownership in a population of admitted child and adolescent inpatients...
2017: Journal of the Canadian Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/28315052/spatiotemporal-variability-in-salinity-and-hydraulic-relationship-with-salt-intrusion-in-the-tidal-reaches-of-the-minjiang-river-fujian-province-china
#10
Rongrong Xie, Yong Pang, Bingrong Luo, Jiabing Li, Chunshan Wu, Yuyi Zheng, Qiyuan Sun, Peng Zhang, Feifeng Wang
Salinity is one of the most important factors for tidal-affected water bodies including estuaries and tidal river reaches. However, due to the limitations of simultaneous manual monitoring in long-distance areas, studies of estuaries are preferred to tidal reaches. Hence, in this study, we investigated the tidal reach of the Minjiang River and five sets of field observations were used to determine the influence of saltwater intrusion in different seasons. During the dry and wet season with low discharge, the longitudinal salinity profiles showed that a station located about 45 km from the river mouth still suffered from saltwater intrusion especially when the upstream discharge was under 754 m(3) s(-1), where the periodical fluctuation in the salinity remained the same with the water level, but there was a time lag of approximately 4 h compared with the discharge process...
March 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28275897/identification-of-appropriate-and-potentially-avoidable-emergency-department-referrals-in-a-tertiary-cancer-care-center
#11
Claire Duflos, Sami Antoun, Philippe Loirat, Mario DiPalma, Etienne Minvielle
PURPOSE: Referrals to the Emergency Department can be distressing to patients with advanced cancer and may be a non-optimizing health care service. We aimed to describe the appropriateness and potential avoidability of Emergency Department referrals in a tertiary cancer care center where only physician referrals are allowed. METHODS: We prospectively reviewed the electronic medical charts of patients consecutively checked into the Emergency Department in August 2015...
March 8, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28271285/theoretical-investigation-of-pillar-4-quinone-as-a-cathode-active-material-for-lithium-ion-batteries
#12
Long Huan, Ju Xie, Ming Chen, Guowang Diao, Rongfang Zhao, Tongfei Zuo
The applicability of a novel macrocyclic multi-carbonyl compound, pillar[4]quinone (P4Q), as the cathode active material for lithium-ion batteries (LIBs) was assessed theoretically. The molecular geometry, electronic structure, Li-binding thermodynamic properties, and the redox potential of P4Q were obtained using density functional theory (DFT) at the M06-2X/6-31G(d,p) level of theory. The results of the calculations indicated that P4Q interacts with Li atoms via three binding modes: Li-O ionic bonding, O-Li···O bridge bonding, and Li···phenyl noncovalent interactions...
April 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28258253/quality-of-acute-care-and-long-term-quality-of-life-and-survival-the-australian-stroke-clinical-registry
#13
Dominique A Cadilhac, Nadine E Andrew, Natasha A Lannin, Sandy Middleton, Christopher R Levi, Helen M Dewey, Brenda Grabsch, Steve Faux, Kelvin Hill, Rohan Grimley, Andrew Wong, Arman Sabet, Ernest Butler, Christopher F Bladin, Timothy R Bates, Patrick Groot, Helen Castley, Geoffrey A Donnan, Craig S Anderson
BACKGROUND AND PURPOSE: Uncertainty exists over whether quality improvement strategies translate into better health-related quality of life (HRQoL) and survival after acute stroke. We aimed to determine the association of best practice recommended interventions and outcomes after stroke. METHODS: Data are from the Australian Stroke Clinical Registry during 2010 to 2014. Multivariable regression was used to determine associations between 3 interventions: received acute stroke unit (ASU) care and in various combinations with prescribed antihypertensive medication at discharge, provision of a discharge care plan, and outcomes of survival and HRQoL (EuroQoL 5-dimensional questionnaire visual analogue scale) at 180 days, by stroke type...
March 3, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28256931/barriers-to-discharge-from-inpatient-rehabilitation-a-teamwork-approach
#14
Lisanne Catherine Cruz, Jeffrey S Fine, Subhadra Nori
Purpose In order to prevent adverse events during the discharge process, coordinating appropriate community resources, medication reconciliation, and patient education needs to be implemented before the patient leaves the hospital. This coordination requires communication and effective teamwork amongst staff members. In order to address these concerns, the purpose of this paper is to incorporate the TeamSTEPPS principles to develop a discharge plan that would best meet the needs of the patients as they return to the community...
March 13, 2017: International Journal of Health Care Quality Assurance
https://www.readbyqxmd.com/read/28252825/effective-pain-management-in-recently-discharged-adult-trauma-patients-identifying-patient-and-system-barriers-a-prospective-exploratory-study
#15
Helen Goldsmith, Kate Curtis, Andrea McCloughen
AIMS AND OBJECTIVES: To identify barriers to adherence with prescribed analgesic regimens in recently discharged trauma patients. BACKGROUND: Trauma pain severely interferes with the life of healthy and often working individuals with intense and enduring pain experienced at home following discharge. The reasons for this are unclear considering discharge information (including discharge referral letters and nursing discharge checklists) and analgesics (scripts and/or medication) are routinely provided to patients at hospital discharge...
March 2, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28244211/enhanced-electrochemical-properties-of-li3-vo4-with-controlled-oxygen-vacancies-as-li-ion-battery-anode
#16
Kan Wang, Changkun Zhang, Haoyu Fu, Chaofeng Liu, Zhuoyu Li, Wenda Ma, Xianmao Lu, Guozhong Cao
Li3 VO4 , as a promising intercalation-type anode material for lithium-ion batteries, features a desired discharge potential (ca. 0.5-1.0 V vs. Li/Li(+) ) and a good theoretical storage capacity (590 mAh g(-1) with three Li(+) inserted). However, the poor electrical conductivity of Li3 VO4 hinders its practical application. In the present work, various amounts of oxygen vacancies were introduced in Li3 VO4 through annealing in hydrogen to improve its conductivity. To elucidate the influence of oxygen vacancies on the electrochemical performances of Li3 VO4 , the surface energy of the resulting material was measured with an inverse gas chromatography method...
February 28, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28230537/core-shell-znco2o4-tio2-nanowall-arrays-as-anodes-for-lithium-ion-batteries
#17
Wei Shi, Haitao Zhao, Bingan Lu
In this paper ZnCo2O4 nanowall arrays (NWAs) were first obtained through self-assembly followed by calcination. Then atomic layer deposition was used to fabricate core-shell ZnCo2O4@TiO2 NWAs as anode materials for lithium ion batteries (LIBs). The hierarchical NWA nanostructure has fast ion diffusion and electron transport at the electrode/electrolyte interface, while the excellent chemical stability of the TiO2 shell can protect the ZnCo2O4 NWAs from volume expansion during the charge and discharge processes...
April 21, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28220176/chemical-routes-to-discharging-graphenides
#18
Stephen A Hodge, David J Buckley, Hin Chun Yau, Neal T Skipper, Christopher A Howard, Milo S P Shaffer
Chemical and electrochemical reduction methods allow the dispersion, processing, and/or functionalization of discrete sp(2)-hybridised nanocarbons, including fullerenes, nanotubes and graphenes. Electron transfer to the nanocarbon raises the Fermi energy, creating nanocarbon anions and thereby activating an array of possible covalent reactions. The Fermi level may then be partially or fully lowered by intended functionalization reactions, but in general, techniques are required to remove excess charge without inadvertent covalent reactions that potentially degrade the nanocarbon properties of interest...
February 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/28218313/ultrasmall-fe2o3-nanoparticles-mos2-nanosheets-composite-as-high-performance-anode-material-for-lithium-ion-batteries
#19
Bin Qu, Yue Sun, Lianlian Liu, Chunyan Li, Changjian Yu, Xitian Zhang, Yujin Chen
Coupling ultrasmall Fe2O3 particles (~4.0 nm) with the MoS2 nanosheets is achieved by a facile method for high-performance anode material for Li-ion battery. MoS2 nanosheets in the composite can serve as scaffolds, efficiently buffering the large volume change of Fe2O3 during charge/discharge process, whereas the ultrasmall Fe2O3 nanoparticles mainly provide the specific capacity. Due to bigger surface area and larger pore volume as well as strong coupling between Fe2O3 particles and MoS2 nanosheets, the composite exhibits superior electrochemical properties to MoS2, Fe2O3 and the physical mixture Fe2O3+MoS2...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28215655/the-caregiver-perspective-on-unscheduled-72-hour-return-visits-to-pediatric-acute-care-sites-a-focus-on-discharge-processes
#20
Nidhya Navanandan, Sarah K Schmidt, Natasha Cabrera, Michael C DiStefano, Rakesh D Mistry
OBJECTIVE: To characterize pediatric caregivers' reasons for 72-hour emergency department (ED) and urgent care (UC) returns. METHODS: A sample of caregivers returning within 72 hours of initial visit to a pediatric ED or affiliated UC site were surveyed from November 2014 to June 2015; patients evaluated at outside ED/UC, scheduled for return, or non-English/Spanish speaking were excluded. Caregiver surveys underwent item generation, validation, and pilot testing...
February 12, 2017: Academic Pediatrics
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