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https://www.readbyqxmd.com/read/28346708/high-resolution-isotopic-monitoring-of-cave-air-co2
#1
Paul Töchterle, Yuri Dublyansky, Nils Stöbener, Magda Mandić, Christoph Spötl
RATIONALE: CO2 is the main driver of many chemical processes in cave environments. Understanding CO2 fluxes in a given cave system through monitoring campaigns has become a standard procedure in a wide variety of fields such as paleoclimatology or show cave management. However, conventional methods lack the resolution of isotopic data to capture many transient processes occurring in caves. METHODS: A novel approach using isotope ratio infrared spectrometry (IRIS) to monitor cave air pCO2 , δ(13) C and δ(18) O values in situ was tested and compared with conventional monitoring methods (handheld pCO2 meter and discrete cave air samples for conventional isotope ratio mass spectrometry)...
March 27, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28346519/views-of-senior-health-personnel-about-quality-of-emergency-obstetric-care-a-qualitative-study-in-nigeria
#2
Friday Okonofua, Abdullahi Randawa, Rosemary Ogu, Kingsley Agholor, Ola Okike, Rukayat Adeola Abdus-Salam, Mohammed Gana, Eghe Abe, Adetoye Durodola, Hadiza Galadanci
BACKGROUND: Late arrival in hospital by women experiencing pregnancy complications is an important background factor leading to maternal mortality in Nigeria. The use of effective and timely emergency obstetric care determines whether women survive or die, or become near-miss cases. Healthcare managers have the responsibility to deploy resources for implementing emergency obstetric care. OBJECTIVES: To determine the nature of institutional policies and frameworks for managing obstetric complications and reducing maternal deaths in Nigeria...
2017: PloS One
https://www.readbyqxmd.com/read/28346477/disruption-of-sorcs2-reveals-differences-in-the-regulation-of-stereociliary-bundle-formation-between-hair-cell-types-in-the-inner-ear
#3
Andrew Forge, Ruth R Taylor, Sally J Dawson, Michael Lovett, Daniel J Jagger
Behavioural anomalies suggesting an inner ear disorder were observed in a colony of transgenic mice. Affected animals were profoundly deaf. Severe hair bundle defects were identified in all outer and inner hair cells (OHC, IHC) in the cochlea and in hair cells of vestibular macular organs, but hair cells in cristae were essentially unaffected. Evidence suggested the disorder was likely due to gene disruption by a randomly inserted transgene construct. Whole-genome sequencing identified interruption of the SorCS2 (Sortilin-related VPS-10 domain containing protein) locus...
March 27, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28346159/using-actigraphy-feedback-to-improve-sleep-in-soldiers-an-exploratory-trial
#4
Amy B Adler, Brian C Gunia, Paul D Bliese, Paul Y Kim, Matthew L LoPresti
OBJECTIVES: The objective of this study was to assess the impact of wearing an actigraph and receiving personalized feedback on the sleep of a high-risk occupational group: United States soldiers recently returned from a combat deployment. DESIGN: Following a baseline survey with a full sample, a subsample of soldiers wore an actigraph, received feedback, and completed a brief survey. Two months later, the full sample completed a follow-up survey. The actigraph intervention involved wearing an actigraph for 3 weeks and then receiving a personalized report about sleep patterns and an algorithm-based estimate of cognitive functioning derived from individual sleep patterns...
April 2017: Sleep Health
https://www.readbyqxmd.com/read/28346134/five-key-recommendations-for-the-implementation-of-hospital-electronic-prescribing-and-medicines-administration-systems-in-scotland
#5
Kathrin Cresswell, Ann Slee, Aziz Sheikh
NHS Scotland is about to embark on the implementation of Hospital Electronic Prescribing and Medicines Administration (HEPMA) systems. There are a number of risks associated with such ventures, thus drawing on existing experiences from other settings is crucial in informing deployment.Drawing on our previous and ongoing work in English settings as well as the international literature, we reflect on key lessons that NHS Scotland may wish to consider in going forward. These deliberations include recommendations surrounding key aspects of deployment strategy surrounding: 1) the way central coordination should be conceptualised, 2) how flexibility in can be ensured, 3) paying attention to optimising systems from the outset, 4) how expertise should be developed and centrally shared, and 5) ways in which learning from experience can be maximised...
January 24, 2017: Journal of Innovation in Health Informatics
https://www.readbyqxmd.com/read/28345752/recent-field-experiments-with-commercial-satellite-imagery-direct-downlink
#6
Anthony R Gonzalez, Samuel H Amber
US Pacific Command's strategy includes assistance to United States government relief agencies and nongovernment organizations during humanitarian aid and disaster relief operations in the Asia-Pacific region. Situational awareness during these operations is enhanced by broad interagency access to unclassified commercial satellite imagery. The Remote Ground Terminal-a mobile satellite downlink ground station-has undergone several technology demonstrations and participated in an overseas deployment exercise focused on a natural disaster scenario...
January 2017: Journal of Emergency Management: JEM
https://www.readbyqxmd.com/read/28345418/a-coaxial-dual-element-focused-ultrasound-probe-for-guidance-of-epidural-catheterization
#7
Guo-Chung Dong, Li-Chen Chiu, Chien-Kun Ting, Jia-Ruei Hsu, Chih-Chung Huang, Yin Chang, Gin-Shin Chen
Ultrasound guidance for epidural block has improved clinical blind-trial problems but the design of present ultrasonic probes poses operating difficulty of ultrasound-guided catheterization, increasing the failure rate. The purpose of this study was to develop a novel ultrasonic probe to avoid needle contact with vertebral bone during epidural catheterization. The probe has a central circular passage for needle insertion. Two focused annular transducers are deployed around the passage for on-axis guidance. A 17-gauge insulated Tuohy needle containing the self-developed fiber-optic-modified stylet was inserted into the back of the anesthetized pig, in the lumbar region under the guidance of our ultrasonic probe...
March 1, 2017: Ultrasonic Imaging
https://www.readbyqxmd.com/read/28345293/detection-of-zaire-ebolavirus-in-swine-assay-development-and-optimization
#8
B S Pickering, B Collignon, G Smith, P Marszal, G Kobinger, H M Weingartl
Ebolaviruses (family Filoviridae, order Mononegavirales) cause often fatal, haemorrhagic fever in primates including humans. Pigs have been identified as a species susceptible to Reston ebolavirus (RESTV) infection, with indicated transmission to humans in the Philippines; however, their role during Ebola outbreaks in Africa needs to be clarified. To perform surveillance studies, detection of ebolavirus requires a prerequisite validation of viral RNA and antibody detection methods in swine samples. These diagnostic tests also need to be suitable for deployment to low-level containment laboratories...
March 27, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/28344611/percutaneous-pulmonary-valve-implantation-state-of-the-art-and-polish-experience
#9
REVIEW
Elżbieta K Biernacka, Witold Rużyłło, Marcin Demkow
Percutaneous pulmonary valve implantation (PPVI) is a relatively new method of treating patients with right ventricular outflow tract (RVOT) dysfunction after surgical repair of congenital heart disease. Since its introduction in 2000 by Bonhoeffer, more than ten thousand PPVI procedures have been performed worldwide. Indications for PPVI have been adapted from those accepted for surgical intervention. Two types of valves are being used: Melody Medtronic available in diameters 16 mm and 18 mm and the family of Edwards SAPIEN valves 23, 26 and 29...
2017: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/28343984/amitosis-of-polyploid-cells-regenerates-functional-stem-cells-in-the-drosophila-intestine
#10
Elena M Lucchetta, Benjamin Ohlstein
Organ fitness depends on appropriate maintenance of stem cell populations, and aberrations in functional stem cell numbers are associated with malignancies and aging. Symmetrical division is the best characterized mechanism of stem cell replacement, but other mechanisms could also be deployed, particularly in situations of high stress. Here, we show that after severe depletion, intestinal stem cells (ISCs) in the Drosophila midgut are replaced by spindle-independent ploidy reduction of cells in the enterocyte lineage through a process known as amitosis...
March 18, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/28343753/limnothrix-sp-ko05-a-newly-characterized-cyanobacterial-biosorbent-for-cadmium-removal-the-enzymatic-and-non-enzymatic-antioxidant-reactions-to-cadmium-toxicity
#11
Omid Haghighi, Shahab Shahryari, Mojgan Ebadi, Sima Modiri, Hossein Shahbani Zahiri, Hadi Maleki, Kambiz Akbari Noghabi
In this study, we isolated five indigenous cyanobacterial strains from different aqueous environments, with heavy metals contamination, in East Azerbaijan Province (northwest portion of Iran). A strain was identified by morphological and 16S rRNA sequence analysis as Limnothrix sp. KO05 and selected for further studies as having the greatest potential for cadmium uptake. Scanning electron microscopy (SEM) demonstrated cyanobacterium Limnothrix sp. KO05 forms filamentous structures and is straight or curved to some extent...
March 18, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28343275/potential-toxic-elements-in-stream-sediments-soils-and-waters-in-an-abandoned-radium-mine-central-portugal
#12
I M H R Antunes, A M R Neiva, M T D Albuquerque, P C S Carvalho, A C T Santos, Pedro P Cunha
The Alto da Várzea radium mine (AV) exploited ore and U-bearing minerals, such as autunite and torbernite. The mine was exploited underground from 1911 to 1922, closed in 1946 without restoration, and actually a commercial area is deployed. Stream sediments, soils and water samples were collected between 2008 and 2009. Stream sediments are mainly contaminated in As, Th, U and W, which is related to the AV radium mine. The PTEs, As, Co, Cr, Sr, Th, U, W, Zn, and electrical conductivity reached the highest values in soils collected inside the mine influence...
March 25, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28342994/persistent-organic-pollutants-pops-in-the-atmosphere-of-coastal-areas-of-the-ross-sea-antarctica-indications-for-long-term-downward-trends
#13
Karla Pozo, Tania Martellini, Simonetta Corsolini, Tom Harner, Victor Estellano, Petr Kukučka, Marie D Mulder, Gerhard Lammel, Alessandra Cincinelli
Passive air samplers were used to evaluate long-term trends and spatial distribution of trace organic compounds in Antarctica. Duplicate PUF disk samplers were deployed at six automatic weather stations in the coastal area of the Ross sea (East Antarctica), between December 2010 and January 2011, during the XXVI Italian Scientific Research Expedition. Among the investigated persistent organic compounds, Hexachlorobenzene was the most abundant, with air concentrations ranging from 0.8 to 50 pg m(-3). In general, the following decreasing concentration order was found for the air samples analyzed: HCB > PeCB > PCBs > DDTs > HCHs...
February 27, 2017: Chemosphere
https://www.readbyqxmd.com/read/28342839/a-case-of-severely-calcified-neoatherosclerosis-after-paclitaxel-eluting-stent-implantation
#14
Kei Yamamoto, Kenichi Sakakura, Yousuke Taniguchi, Hiroshi Wada, Shin-Ichi Momomura, Hideo Fujita
A 79-year-old male who had a history of coronary artery bypass grafting (CABG) and percutaneous coronary intervention (PCI) received coronary angiography (CAG), because of angina pectoris. CAG showed in-stent restenosis of the paclitaxel-eluting stent (PES). Since the devices could not pass the lesion, we performed rotational atherectomy. Although we could not identify the calcified lesion by the optical frequency domain imaging (OFDI) findings because of strong attenuation, the intravascular ultrasound (IVUS) image showed the superficial calcification...
March 15, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28342652/effective-hospital-wide-education-in-hemorrhage-control
#15
James R Hegvik, Sarah K Spilman, Sherry D Olson, Carrie A Gilchrist, Richard A Sidwell
BACKGROUND: Uncontrolled hemorrhage is the leading cause of potentially preventable traumatic death. Bleeding victims must receive immediate medical attention to save lives, and the first opportunity to control bleeding after trauma often comes from bystanders. Educating the general public is important for improving outcomes for hemorrhaging victims, and it is imperative for all people, including those with no clinical training, to have the knowledge to respond until trained medical specialists arrive...
March 4, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28342535/-professional-stressors-and-common-mental-health-disorders-causal-links
#16
C Nicolas, N Chawky, C Jourdan-Ionescu, M-S Drouin, C Page, N Houlfort, G Beauchamp, M Séguin
According to the World Health Organization, depression has become the leading cause of disability in the world, contributing significantly to the burden of health issues especially in the industrialized countries. This is a major public health problem, with potential impact on work climates, productivity at work and the continued existence of the organizations. Some recent studies have examined potential links between professional factors and common mental health disorders, but none have demonstrated a direct causal link...
March 22, 2017: L'Encéphale
https://www.readbyqxmd.com/read/28341978/antegrade-thoracic-endovascular-aortic-repair-using-an-ascending-aortofemoral-through-and-through-wire-technique-for-a-severely-tortuous-aorta-associated-with-rickets
#17
Atsushi Morishita, Kazuhiko Hanzawa, Seiichiro Katahira, Takeshi Hoshino, Hideyuki Tomioka
BACKGROUND: Severe aortic tortuosity of the access route often prevents successful complete exclusion of an aneurysm in thoracic endovascular aortic repair (TEVAR). CASE PRESENTATION: We performed antegrade TEVAR on a 79-year-old man with right hemiparesis. We deployed the stent graft from the ascending aorta with a tube graft conduit to treat a descending thoracic aortic aneurysm associated with rickets and multiple comorbidities. Although the application of a ministernotomy diminished the potential advantages of endovascular treatment in view of less invasive surgery, antegrade TEVAR using an ascending aortofemoral through-and-through wire technique was a good option in this patient because a conventional retrograde approach was not feasible due to his severely tortuous aorta...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28341910/effectiveness-and-cost-benefit-evaluation-of-a-comprehensive-workers-health-surveillance-program-for-sustainable-employability-of-meat-processing-workers
#18
Berry J van Holland, Michiel F Reneman, Remko Soer, Sandra Brouwer, Michiel R de Boer
Objective To evaluate the effectiveness of a comprehensive workers' health surveillance (WHS) program on aspects of sustainable employability and cost-benefit. Methods A cluster randomized stepped wedge trial was performed in a Dutch meat processing company from february 2012 until march 2015. In total 305 workers participated in the trial. Outcomes were retrieved during a WHS program, by multiple questionnaires, and from company registries. Primary outcomes were sickness absence, work ability, and productivity...
March 24, 2017: Journal of Occupational Rehabilitation
https://www.readbyqxmd.com/read/28341891/homecoming-of-citizen-soldiers-postdeployment-problems-and-service-use-among-army-national-guard-soldiers
#19
James Griffith
The present study described the types and amount of problems and services sought among returned deployed Army National Guard soldiers (4568 soldiers in 50 units). The study responds to gaps in the research literature to better understand community intervention needs of reservists. About half (48%) of the soldiers reported one or two problems, mostly those of psychological well-being, such as feelings of anger and frustration, upsetting memories, and troubled sleep (34% of the study sample), followed by problems of social support (18%), alcohol use (17%), feelings of isolation including suicidal thoughts (13%), and financial difficulties (11%)...
March 24, 2017: Community Mental Health Journal
https://www.readbyqxmd.com/read/28341834/grating-chips-for-quantum-technologies
#20
James P McGilligan, Paul F Griffin, Rachel Elvin, Stuart J Ingleby, Erling Riis, Aidan S Arnold
We have laser cooled 3 × 10(6 87)Rb atoms to 3 μK in a micro-fabricated grating magneto-optical trap (GMOT), enabling future mass-deployment in highly accurate compact quantum sensors. We magnetically trap the atoms, and use Larmor spin precession for magnetic sensing in the vicinity of the atomic sample. Finally, we demonstrate an array of magneto-optical traps with a single laser beam, which will be utilised for future cold atom gradiometry.
March 24, 2017: Scientific Reports
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