keyword
MENU ▼
Read by QxMD icon Read
search

Operational research

keyword
https://www.readbyqxmd.com/read/27922181/evaluation-of-gas-and-carbon-transport-in-a-methanogenic-bioelectrochemical-system-bes
#1
Christy M Dykstra, Spyros G Pavlostathis
Bioelectrochemical systems (BESs) may be used to upgrade anaerobic digester biogas by directly converting CO2 to CH4 .The objective of this study was to evaluate gas (N2 , CO2 , CH4 , and H2 ) and carbon transport within a methanogenic BES. Four BES configurations were evaluated: abiotic anode with abiotic cathode (AAn-ACa), bioanode with abiotic cathode (BAn-ACa), abiotic anode with biocathode (AAn-BCa), and bioanode with biocathode (BAn-BCa). Transport of N2 , a gas commonly used for flushing anoxic systems, out of the anode headspace ranged from 3...
December 6, 2016: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/27922177/before-attachment-theory-separation-research-at-the-tavistock-clinic-1948-1956
#2
Bican Polat
This article traces the formation of attachment theory to the pioneering research program of Bowlby and his colleagues at the Tavistock Clinic between 1948 and 1956. Through a discussion of the concepts and practices that informed Bowlby's program, I examine the efforts of his team to reconstruct psychoanalytic objects according to preventive objectives and operational criteria. I discuss how the exploratory techniques that Bowlby and his colleagues were developing during these years ultimately led to the establishment of a hybrid investigative framework, in which the prophylactic requirements of mental hygiene, the psychometric model of personality disturbances, the psychoanalytic theory of object relations, and a direct-observational methodology were brought to bear on the problem of the psychological consequences of early separation experiences...
December 6, 2016: Journal of the History of the Behavioral Sciences
https://www.readbyqxmd.com/read/27921291/evaluation-of-capillary-electrophoresis-for-the-analysis-of-rooibos-and-honeybush-tea-phenolics
#3
William J Arries, Andreas G J Tredoux, Dalene de Beer, Elizabeth Joubert, André de Villiers
Rooibos and honeybush are popular herbal teas produced from the shrubs of Aspalathus linearis and Cyclopia spp., respectively, which are indigenous to South Africa. Both herbal teas are rich in polyphenols and their consumption is associated with several health benefits, partly ascribed to their phenolic constituents. Quantification of phenolics in extracts and teas for quality control and research purposes is generally performed using HPLC, although dedicated and often species-specific methods are required...
December 6, 2016: Electrophoresis
https://www.readbyqxmd.com/read/27921147/can-the-alendronate-dosage-be-altered-when-combined-with-high-frequency-loading-in-osteoporosis-treatment
#4
C B Correa, G V Camargos, M Chatterjee, M F Mesquita, A A Del Bel Cury, I Naert, J Duyck, K Vandamme
: Alendronate therapy has been associated with serious side effects. Altering the alendronate concentration and combining with high-frequency loading as mechanical intervention was explored in this animal study as a treatment for osteoporosis. The bone anabolic potency of high-frequency loading was overruled by the different alendronate dosages applied in the present study. Further exploration of reduced hormonal therapy associated with mechanical interventions in osteoporosis treatment should be sought...
December 5, 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27920358/factors-affecting-counseling-services-in-social-service-structures-providing-support-to-women-who-are-victims-of-violence-a-qualitative-research-in-greece
#5
Katerina Flora, Anthi Argyroudi
This qualitative study examines the factors that affect counseling services in structures aimed to provide support to women who are victims of violence. What has created the need to investigate the above issues is the increase in events of violence against women in Greece, and the subsequent development of relevant support and accommodation structures. Despite the clinical experience accumulated, research data from Greece are incomplete. The main research question concerns the factors that affect counseling in violence counseling structures...
December 4, 2016: Journal of Interpersonal Violence
https://www.readbyqxmd.com/read/27919771/the-initiation-of-chronic-opioids-a-survey-of-chronic-pain-patients-characterizing-chronic-opioid-use
#6
Catherine E Callinan, Mark D Neuman, Kim E Lacy, Claudia Gabison, Michael A Ashburn
: This study reports the results of a researcher-administered survey with 115 patients receiving chronic opioid therapy (>90 days) to obtain information regarding how chronic opioid therapy was started. Chronic opioids were started following surgery (27.0%; 95% CI:18.5-35.5) or for the treatment of acute injury-related pain (27.0%; 95% CI:18.5-35.5). Many who initiated opioid therapy after surgery reported post-operative complications (61.3%; 95% CI:50.8-71.8) and many with injury-related pain reported follow-up corrective surgery (58...
December 2, 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/27919760/proton-therapy-present-and-future
#7
REVIEW
Radhe Mohan, David Grosshans
In principle, proton therapy offers a substantial clinical advantage over the conventional photon therapy. This is because of the unique depth-dose characteristics of protons, which can be exploited to achieve significant reductions in normal tissue doses proximal and distal to the target volume. These may, in turn, allow escalation of tumor doses, greater sparing of normal tissues, thus potentially improving local control and survival while at the same time reducing toxicity and improving quality of life. Protons, accelerated to therapeutic energies ranging from 70 to 250MeV, typically with a cyclotron or a synchrotron, are transported to the treatment room where they enter the treatment head mounted on a rotating gantry...
December 2, 2016: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/27919450/development-and-validation-of-a-prediction-model-for-patients-discharged-to-post-acute-care-after-colorectal-cancer-surgery
#8
Elizabeth A Bailey, Rebecca L Hoffman, Christopher Wirtalla, Giorgos Karakousis, Rachel R Kelz
BACKGROUND: As payment shifts toward bundled reimbursement, decreasing unnecessary inpatient care may provide cost savings. This study examines the association between discharge status, hospital duration of stay, and cost for colorectal operation patients without complications and uses risk factors to predict the need for post-acute care. METHODS: We used the New York Statewide Planning and Research Cooperative System and the California Healthcare Cost and Utilization Project State Inpatient Databases to identify all patients who underwent operative resection for colorectal cancer in 2009-2010 and were discharged to home or post-acute care...
December 2, 2016: Surgery
https://www.readbyqxmd.com/read/27919297/fluid-intelligence-and-the-cross-frequency-coupling-of-neuronal-oscillations
#9
Adam Chuderski
Several existing theoretical models predict that the individual capacity of working memory and abstract reasoning (fluid intelligence) strongly depends on certain features of neuronal oscillations, especially their cross-frequency coupling. Empirical evidence supporting these predictions is still scarce, but it makes the future studies on oscillatory coupling a promising line of research that can uncover the physiological underpinnings of fluid intelligence. Cross-frequency coupling may serve as the optimal level of description of neurocognitive processes, integrating their genetic, structural, neurochemical, and bioelectrical underlying factors with explanations in terms of cognitive operations driven by neuronal oscillations...
December 6, 2016: Spanish Journal of Psychology
https://www.readbyqxmd.com/read/27919155/-possible-health-risks-from-asbestos-in-drinking-water
#10
Agostino Di Ciaula, Valerio Gennaro
The recent finding of asbestos fibres in drinking water (up to 700.000 fibres/litres) in Tuscany (Central Italy) leads to concerns about health risks in exposed communities. Exposure to asbestos has been linked with cancer at several levels of the gastrointestinal tract, and it has been documented, in an animal model, a direct cytotoxic effect of asbestos fibres on the ileum. It has been recently described a possible link between asbestos and intrahepatic cholangiocarcinoma, and asbestos fibres have been detected in humans in histological samples from colon cancer and in gallbladder bile...
November 2016: Epidemiologia e Prevenzione
https://www.readbyqxmd.com/read/27918907/prevalence-and-characteristics-of-cancer-patients-receiving-care-from-single-vs-multiple-institutions
#11
Christina A Clarke, Sally L Glaser, Rita Leung, Kathleen Davidson-Allen, Scarlett L Gomez, Theresa H M Keegan
INTRODUCTION: Patients may receive cancer care from multiple institutions. However, at the population level, such patterns of cancer care are poorly described, complicating clinical research. To determine the population-based prevalence and characteristics of patients seen by multiple institutions, we used operations data from a state-mandated cancer registry. METHODS AND MATERIALS: 59,672 invasive cancers diagnosed in 1/1/2010-12/31/2011 in the Greater Bay Area of northern California were categorized as having been reported to the cancer registry within 365days of diagnosis by: 1) ≥1 institution within an integrated health system (IHS); 2) IHS institution(s) and ≥1 non-IHS institution (e...
December 2, 2016: Cancer Epidemiology
https://www.readbyqxmd.com/read/27918864/comparison-of-emergency-medical-services-and-trauma-care-systems-among-pan-asian-countries-an-international-multicenter-population-based-survey
#12
Kyong Min Sun, Kyoung Jun Song, Sang Do Shin, Hideharu Tanaka, Goh E Shaun, Wen-Chu Chiang, Kentaro Kajino, Sabariah Faizah Jamaluddin, Akio Kimura, Young Sun Ro, Dae Han Wi, Ju Ok Park, Sung Woo Moon, Young Hee Jung, Min Jung Kim, James F Holmes
OBJECTIVE: Knowledge on the current trauma systems in Asian countries is limited. The objective of this study was to describe the emergency medical services (EMS) and trauma care systems among countries participating in the Pan-Asian Trauma Outcomes Study (PATOS) Clinical Research Network. METHODS: The PATOS network consists of 33 participating sites from 14 countries. Standardized data was collected from each site using an EMS survey form and included general information (population, population density, urbanization, EMS service fee, etc...
December 5, 2016: Prehospital Emergency Care
https://www.readbyqxmd.com/read/27917787/effects-of-neurofeedback-therapy-in-healthy-young-subjects
#13
Sümeyra Altan, Bercim Berberoglu, Sinan Canan, Şenol Dane
PURPOSE: Neurofeedback refers to a form of operant conditioning of electrical brain activity, in which desirable brain activity is rewarded and undesirable brain activity is inhibited. The research team aimed to examine the efficacy of neurofeedback therapy on electroencephalogram (EEG) for heart rate, electrocardiogram (ECG) and galvanic skin resistance (GSR) parameters in a healthy young male population. METHODS: Forty healthy young male subjects aged between 18 to 30 years participated in this study...
December 1, 2016: Clinical and Investigative Medicine. Médecine Clinique et Experimentale
https://www.readbyqxmd.com/read/27917344/research-on-early-warning-index-of-the-spatial-temperature-field-in-concrete-dams
#14
Guang Yang, Chongshi Gu, Tengfei Bao, Zhenming Cui, Kan Kan
Warning indicators of the dam body's temperature are required for the real-time monitoring of the service conditions of concrete dams to ensure safety and normal operations. Warnings theories are traditionally targeted at a single point which have limitations, and the scientific warning theories on global behavior of the temperature field are non-existent. In this paper, first, in 3D space, the behavior of temperature field has regional dissimilarity. Through the Ward spatial clustering method, the temperature field was divided into regions...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27917313/open-surgery-versus-retroperitoneal-laparoscopic-nephrectomy-for-renal-tuberculosis-a-retrospective-study-of-120-patients
#15
Su Zhang, You Luo, Cheng Wang, Hu Xiong, Sheng-Jun Fu, Li Yang
BACKGROUND: Laparoscopic renal surgery has been widely used in the treatment of renal diseases. However, there is still little research about its application in addressing renal tuberculosis. The purpose of this study is to retrospectively investigate the surgical results of laparoscopic and open surgery for nonfunctional tuberculous kidneys. METHODS: Between May 2011 and June 2016, 120 nephrectomies were performed in patients with a nonfunctional tuberculous kidney...
2016: PeerJ
https://www.readbyqxmd.com/read/27917016/the-portapotty-experiment-neoliberal-approaches-to-the-intertwined-epidemics-of-opioid-related-overdose-and-hiv-hcv-and-why-we-need-cultural-anthropologists-in-the-south-bronx
#16
Brett Wolfson-Stofko, Ric Curtis, Faustino Fuentes, Ed Manchess, Alexis Del Rio-Cumba, Alex S Bennett
The following report from the field focuses on the authors' collective efforts to operate an ad hoc safer injection facility (SIF) out of portapotties (portable toilets) in an area of the South Bronx that has consistently experienced some of the highest overdose morbidity and mortality rates in New York City over the past decade (New York City Department of Health and Mental Hygiene, 2011, 2015, 2016). Safer injection facilities (also known as supervised injection facilities, drug consumption rooms, etc.) operating outside the US provide a legal, hygienic, and supervised environment for individuals to use drugs in order to minimize the likelihood of fatal overdose and the spread of blood-borne infections while reducing public injection...
December 2016: Dialectical Anthropology
https://www.readbyqxmd.com/read/27916962/lightweight-sensor-authentication-scheme-for-energy-efficiency-in-ubiquitous-computing-environments
#17
Jaeseung Lee, Yunsick Sung, Jong Hyuk Park
The Internet of Things (IoT) is the intelligent technologies and services that mutually communicate information between humans and devices or between Internet-based devices. In IoT environments, various device information is collected from the user for intelligent technologies and services that control the devices. Recently, wireless sensor networks based on IoT environments are being used in sectors as diverse as medicine, the military, and commerce. Specifically, sensor techniques that collect relevant area data via mini-sensors after distributing smart dust in inaccessible areas like forests or military zones have been embraced as the future of information technology...
December 1, 2016: Sensors
https://www.readbyqxmd.com/read/27916831/long-term-task-and-dopamine-dependent-dynamics-of-subthalamic-local-field-potentials-in-parkinson-s-disease
#18
Sara J Hanrahan, Joshua J Nedrud, Bradley S Davidson, Sierra Farris, Monique Giroux, Aaron Haug, Mohammad H Mahoor, Anne K Silverman, Jun Jason Zhang, Adam Olding Hebb
Subthalamic nucleus (STN) local field potentials (LFP) are neural signals that have been shown to reveal motor and language behavior, as well as pathological parkinsonian states. We use a research-grade implantable neurostimulator (INS) with data collection capabilities to record STN-LFP outside the operating room to determine the reliability of the signals over time and assess their dynamics with respect to behavior and dopaminergic medication. Seven subjects were implanted with the recording augmented deep brain stimulation (DBS) system, and bilateral STN-LFP recordings were collected in the clinic over twelve months...
November 29, 2016: Brain Sciences
https://www.readbyqxmd.com/read/27916652/exploring-pericyte-and-cardiac-stem-cell-secretome-unveils-new-tactics-for-drug-discovery
#19
REVIEW
Georgina M Ellison-Hughes, Paolo Madeddu
Ischaemic diseases remain a major cause of morbidity and mortality despite continuous advancements in medical and interventional treatments. Moreover, available drugs reduce symptoms associated with tissue ischaemia, without providing a definitive repair. Cardiovascular regenerative medicine is an expanding field of research that aims to improve the treatment of ischaemic disorders through restorative methods, such as gene therapy, stem cell therapy, and tissue engineering. Stem cell transplantation has salutary effects through direct and indirect actions, the latter being attributable to growth factors and cytokines released by stem cells and influencing the endogenous mechanisms of repair...
December 1, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27916341/hospital-influenza-pandemic-stockpiling-needs-a-computer-simulation
#20
Mark N Abramovich, John C Hershey, Byron Callies, Amesh A Adalja, Pritish K Tosh, Eric S Toner
BACKGROUND: A severe influenza pandemic could overwhelm hospitals but planning guidance that accounts for the dynamic interrelationships between planning elements is lacking. We developed a methodology to calculate pandemic supply needs based on operational considerations in hospitals and then tested the methodology at Mayo Clinic in Rochester, MN. METHODS: We upgraded a previously designed computer modeling tool and input carefully researched resource data from the hospital to run 10,000 Monte Carlo simulations using various combinations of variables to determine resource needs across a spectrum of scenarios...
December 2, 2016: American Journal of Infection Control
keyword
keyword
47444
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"