keyword
MENU ▼
Read by QxMD icon Read
search

PEM

keyword
https://www.readbyqxmd.com/read/28715201/rational-design-of-s-uio-66-go-hybrid-nanosheets-for-proton-exchange-membranes-with-significantly-enhanced-transport-performance
#1
Huazhen Sun, Beibei Tang, Peiyi Wu
Metal-organic frameworks (MOFs) are being intensively explored as filler materials for polymeric proton exchange membranes (PEMs) due to their potentials for the systematic design and modification of proton-conducting properties. S-UiO-66, a stable MOF with functional groups of -SO3H in its ligands, was selected here to prepare S-UiO-66@graphene oxide (GO) hybrid nanosheets via facile in situ growth procedure, and then a series of composite PEMs were prepared by hybridizing S-UiO-66@GO and sulfonated poly(ether ether ketone) (SPEEK)...
July 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28713856/differences-in-me-and-cfs-symptomology-in-patients-with-normal-and-abnormal-exercise-test-results
#2
Stephanie L McManimen, Leonard A Jason
Post-exertional malaise (PEM) is a cardinal symptom of myalgic encephalomyelitis (ME) and chronic fatigue syndrome (CFS), which often distinguishes patients with this illness from healthy controls or individuals with exclusionary illnesses such as depression. However, occurrence rates for PEM fluctuate from subject to how the symptom is operationalized. One commonly utilized method is exercise testing, maximal or submaximal. Many patients with ME and CFS experience PEM after participating in these tests, and often show abnormal results...
2017: International Journal of Neurology and Neurotherapy
https://www.readbyqxmd.com/read/28708936/hybrid-model-for-the-personal-exposure-meter-response-in-an-outdoor-environment
#3
Jung-Hwan Hwang, Sang-Il Kwak, Jong-Hwa Kwon, Hyung-Do Choi
When a personal exposure meter (PEM) is worn by a human subject, the electric-field strength measured at the PEM is affected by a body shadowing effect. In our study, a hybrid model is proposed for modeling the body shadowing effect for when the PEM is used in an outdoor environment. The hybrid model contains responses to direct and diffused waves, the factors related to the transmission path and cross-polarization discrimination, respectively. To derive the hybrid model, responses for the direct and diffused waves are measured using a human phantom in an anechoic chamber and a reverberation chamber, respectively...
July 14, 2017: Bioelectromagnetics
https://www.readbyqxmd.com/read/28705656/impact-of-enteroviral-polymerase-chain-reaction-testing-on-length-of-stay-for-infants-60-days-old-or-younger
#4
Paul L Aronson, Todd W Lyons, Andrea T Cruz, Stephen B Freedman, Pamela J Okada, Alesia H Fleming, Joseph L Arms, Amy D Thompson, Suzanne M Schmidt, Jeffrey Louie, Michael J Alfonzo, Michael C Monuteaux, Lise E Nigrovic
OBJECTIVE: To determine the impact of a cerebrospinal fluid enterovirus polymerase chain reaction (PCR) test performance on hospital length of stay (LOS) in a large multicenter cohort of infants undergoing evaluation for central nervous system infection. STUDY DESIGN: We performed a planned secondary analysis of a retrospective cohort of hospitalized infants ≤60 days of age who had a cerebrospinal fluid culture obtained at 1 of 18 participating centers (2005-2013)...
July 10, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28701728/nitrogen-mediated-graphene-oxide-enables-highly-efficient-proton-transfer
#5
Guo-Liang Chai, Stephen A Shevlin, Zhengxiao Guo
Two-dimensional (2D) graphene and graphene oxide (GO) offer great potential as a new type of cost-efficient proton-exchange membranes (PEM) for electrochemical devices. However, fundamental issues of proton transfer mechanism via 2D membranes are unclear and the transfer barrier for perfect graphene are too high for practical application. Using ab initio molecular dynamic simulations, we screened the proton transfer barrier for different un-doped and nitrogen doped GO membranes, and clarified the corresponding transfer mechanisms...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28699184/control-of-ice-propagation-via-polyelectrolyte-multilayer-coatings
#6
Yuankai Jin, Zhiyuan He, Qian Guo, Jianjun Wang
Ice propagation is of great importance to the accumulation of ice/frost on solid surfaces. However, no investigation has been reported on tuning of ice propagation via a simple coating process. Here, we study the ice propagation behavior on polyelectrolyte multilayer (PEM) surfaces coated with the layer-by-layer (LBL) deposition approach. We discover that ice propagation is strongly dependent on the amount of water in the outermost layer of PEMs, that is, the ice propagation rate increases with the amount of water in the outermost layer...
July 11, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28697882/the-emotional-and-professional-wellbeing-of-australian-midwives-a-comparison-between-those-providing-continuity-of-midwifery-care-and-those-not-providing-continuity
#7
Jennifer Fenwick, Mary Sidebotham, Jenny Gamble, Debra K Creedy
BACKGROUND: Continuity of midwifery care contributes to significant positive outcomes for women and babies. There is a perception that providing continuity of care may negatively impact on the wellbeing and professional lives of midwives. AIM: To compare the emotional and professional wellbeing as well as satisfaction with time off and work-life balance of midwives providing continuity of care with midwives not providing continuity. METHOD: Online survey...
July 8, 2017: Women and Birth: Journal of the Australian College of Midwives
https://www.readbyqxmd.com/read/28688583/image-improvement-method-for-positron-emission-mammography
#8
Nikolai V Slavine, Stephen J Seiler, Roderick W McColl, Robert E Lenkinski
PURPOSE: To evaluate in clinical use a rapidly converging, efficient iterative deconvolution algorithm (RSEMD) for improving the quantitative accuracy of previously reconstructed breast images by a commercial positron emission mammography (PEM) scanner. MATERIALS AND METHODS: The RSEMD method was tested on imaging data from clinical Naviscan Flex Solo II PEM scanner. This method was applied to anthropomorphic like breast phantom data and patient breast images previously reconstructed with Naviscan software to determine improvements in image resolution, signal to noise ratio (SNR) and contrast to noise ratio (CNR)...
July 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28659008/pain-mechanisms-in-peritoneal-diseases-might-be-partially-regulated-by-estrogen
#9
Clara Börner, Claudia Scheerer, Rene Buschow, Vito Chiantera, Jalid Sehouli, Sylvia Mechsner
To identify factors influencing the differential pain pathogenesis in peritoneal endometriosis (pEM) and peritoneal carcinomatosis in ovarian cancer (pOC), we undertook an experimental study. Tissue samples of 18 patients with pEM, 15 patients with pOC, and 15 unaffected peritoneums as controls were collected during laparoscopy or laparotomy. Immunohistochemical stainings were conducted to identify nerve fibers and neurotrophins in the tissue samples. Additionally, 23 pEM fluids, 25 pOC ascites fluids, and 20 peritoneal fluids of patients with myoma uteri as controls were collected...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28648937/the-correlation-of-the-standard-5-probe-fish-assay-with-melanocytic-tumors-of-uncertain-malignant-potential
#10
Aaron Muhlbauer, Shabnam Momtahen, Martin C Mihm, James Wang, Cynthia M Magro
BACKGROUND: FISH has recently emerged as a technique to better assess the malignant potential of histologically ambiguous melanocytic lesions. However, the usefulness of FISH has not been conclusively established. The purpose of this study was to further explore the diagnostic value of FISH in distinguishing the borderline melanocytic tumor (BMT) from melanoma. METHOD: 73 cases with BMT were analyzed retrospectively from a dermatopathology database between 2010-2015...
June 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28647244/on-board-measurement-of-particle-numbers-and-their-size-distribution-from-a-light-duty-diesel-vehicle-influences-of-vsp-and-altitude
#11
Jia Liu, Yunshan Ge, Xin Wang, Lijun Hao, Jianwei Tan, Zihang Peng, Chuanzhen Zhang, Huiming Gong, Ying Huang
In this study, the particle size-resolved distribution from a China-3 certificated light-duty diesel vehicle was measured by using a portable emission measurement system (PEMS). In order to examine the influences of vehicle specific power (VSP) and high-altitude operation, measurements were conducted at 8 constant speeds, which ranged from 10 to 80km/hr at 10km/hr intervals, and two different high altitudes, namely 2200 and 3200m. The results demonstrated that the numbers of particles in all size ranges decreased significantly as VSP increased when the test vehicle was running at lower speeds (<20km/hr), while at a moderate speed (between 30 and 60km/hr), the particle number was statistically insensitive to increase VSP...
July 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28639647/water-mediated-proton-conduction-in-a-sulfonated-microporous-organic-polymer
#12
C Klumpen, S Gödrich, G Papastavrou, J Senker
Polymer membranes (PEMs) within fuel cells (FCs) act as separators and efficient proton conducting electrolytes. Established systems tend to microphase separation into hydrophilic and hydrophobic regions, making these materials prone to water loss at elevated temperatures. Therefore, recent approaches utilize porous materials, which promise stronger interactions between water molecules and the framework, while still providing efficient conductive pathways. Here we show, that the microporous polymer PAF-1 exhibits proton conductivities up to 10(-1) S cm(-1) under hydrous conditions, after post-synthetic sulfonation...
July 4, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28636482/impact-of-freeway-weaving-segment-design-on-light-duty-vehicle-exhaust-emissions
#13
Qing Li, Fengxiang Qiao, Lei Yu, Shuyan Chen, Tiezhu Li
In United States, 26% of greenhouse gas emissions is emitted from the transportation sector, which meanwhile accompanies with enormous toxic emissions to humans, such as CO, NOx, and HC, approximately 2.5% and 2.44% of a total exhaust emission for a petrol and diesel engine, respectively. These exhaust emissions are typically subject to vehicles' intermittent operations, such as hard acceleration and hard braking. In practice, drivers are inclined to operate intermittently while driving through a weaving segment, due to complex vehicle maneuvering for weaving...
June 21, 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/28632577/outcome-of-pediatric-forearm-fracture-reductions-performed-by-pediatric-emergency-medicine-providers-compared-with-reductions-performed-by-orthopedic-surgeons-a-retrospective-cohort-study
#14
Donna Milner, Ernest Krause, Karen Hamre, Andrew Flood
OBJECTIVE: The aim of this study was to describe the outcome differences between board-certified orthopedists and pediatric emergency medicine (PEM) physicians conducting forearm fracture reductions. METHODS: We performed an analysis of patients between 1 and 14 years of age who presented to the emergency department (ED) with a forearm fracture requiring reduction. Data collected included reducing provider (PEM or orthopedist) and prereduction, postreduction, and follow-up fracture angles and displacements of both radius and ulna...
June 20, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28625637/a-randomized-phase-2-evaluation-of-the-chk1-inhibitor-ly2603618-administered-in-combination-with-pemetrexed-and-cisplatin-in-patients-with-advanced-nonsquamous-non-small-cell-lung-cancer
#15
Thomas Wehler, Michael Thomas, Christian Schumann, Joaquim Bosch-Barrera, Nuria Viñolas Segarra, Nicolas J Dickgreber, Klaus Dalhoff, Martin Sebastian, Jesus Corral Jaime, Miriam Alonso, Scott M Hynes, Ji Lin, Karla Hurt, Aimee Bence Lin, Emiliano Calvo, Luis Paz-Ares
This phase 2 portion of a phase 1/2 study examined the efficacy and safety of LY2603618, a selective checkpoint kinase 1 inhibitor, combined with pemetrexed and cisplatin (LY+Pem+Cis) in patients with advanced nonsquamous non-small cell lung cancer (NSCLC). This multicenter, randomized, controlled, open-label study (NCT01139775) enrolled patients with stage IV nonsquamous NSCLC and an Eastern Cooperative Oncology Group performance status ≤1. Patients were randomized (2:1) to LY+Pem+Cis or pemetrexed and cisplatin (Pem+Cis)...
June 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28624289/the-effect-of-child-family-and-environmental-factors-on-the-participation-of-young-children-with-disabilities
#16
Erica Di Marino, Stephanie Tremblay, Mary Khetani, Dana Anaby
BACKGROUND: While participation is essential to a child's health and well-being, little is known about participation patterns of young children with disabilities. OBJECTIVE: This study described the participation of children with disabilities under age 6, and examined the extent to which the child's factors (i.e., age, complexity of child's condition), family factors (i.e., general family functioning, income) and environmental factors (i.e., environmental helpfulness) affect participation dimensions (frequency, involvement, desire for change) in three different settings: home, daycare/preschool and community...
June 1, 2017: Disability and Health Journal
https://www.readbyqxmd.com/read/28621516/proton-conductivity-of-proton-exchange-membrane-synergistically-promoted-by-different-functionalized-metal-organic-frameworks
#17
Zhuang Rao, Beibei Tang, Peiyi Wu
In this study, two functionalized metal-organic frameworks (MOFs), UiO-66-SO3H and UiO-66-NH2, were synthesized. Then, different composite proton exchange membranes (PEMs) were prepared by single doping and codoping of these two MOFs, respectively. It was found that codoping of these two MOFs with suitable sizes was more conducive to the proton conductivity enhancement of the composite PEM. A synergistic effect between these two MOFs led to the the formation of more consecutive hydration channels in the composite PEM...
July 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28611637/a-case-of-posterior-reversible-encephalopathy-syndrome-induced-by-cisplatin-pemetrexed-chemotherapy-for-lung-cancer
#18
Masashi Ishihara, Noriyuki Matsutani, Shuji Ota, Nobuhiko Seki
This report presents the case of a 60-year-old woman who was diagnosed with stage IV lung adenocarcinoma with asymptomatic brain metastases and commenced chemotherapy with cisplatin/pemetrexed (CDDP/Pem). She experienced tonic-clonic convulsions on day 9 of the first cycle, which were accompanied by increased blood pressure (173/69 mm Hg) and headache. Therefore, brain MRI was performed to check for stroke or progression of brain metastatic foci. T2-weighted, FLAIR, and ADC map images showed high-intensity areas in the subcortical region of the bilateral parieto-occipital lobes, leading to a diagnosis of posterior reversible encephalopathy syndrome (PRES)...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28607213/consensus-guidelines-on-evaluation-and-management-of-the-febrile-child-presenting-to-the-emergency-department-in-india
#19
Prashant Mahajan, Prerna Batra, Neha Thakur, Reena Patel, Narendra Rai, Nitin Trivedi, Bernhard Fassl, Binita Shah, Marie Lozon, Rockerfeller A Oteng, Abhijeet Saha, Dheeraj Shah, Sagar Galwankar
JUSTIFICATION: No country-specific, evidence-based, consensus approach for the emergency department (ED) evaluation and management of the febrile child exist in India. PROCESS: We held two consensus meetings, performed an exhaustive literature review, and held ongoing web-based based discussions to arrive at a formal consensus on the proposed evaluation and management algorithm. The first meeting was held in Delhi in October 2015, under the auspices of Pediatric Emergency Medicine (PEM) Section of Academic College of Emergency Experts in India (ACEE-INDIA); and the second meeting was conducted at Pune during Emergency Medical Pediatrics and Recent Trends (EMPART 2016) in March 2016...
June 4, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/28603794/post-exertional-malaise-in-patients-with-me-and-cfs-with-comorbid-fibromyalgia
#20
Stephanie L McManimen, Leonard A Jason
BACKGROUND: Myalgic encephalomyelitis (ME) and chronic fatigue syndrome (CFS) share some similar symptoms with fibromyalgia (FM). Prior research has found increased illness severity when patients have FM that is comorbid with ME and CFS. For example, post-exertional malaise (PEM) has been shown to be more severe in those with comorbid FM. However, PEM can be separated into two factors, Muscle and General PEM. It is unknown if the more severe PEM findings in comorbid FM are due to the Muscle or General PEM factor...
2017: SRL Neurol Neurosurg
keyword
keyword
29527
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"