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https://www.readbyqxmd.com/read/29908487/dynamic-properties-of-hydrogels-and-fiber-reinforced-hydrogels
#1
Nicholas Martin, George Youssef
Hydrophilic polymers, or hydrogels, are used for a wide variety of biomedical applications, due to their inherent ability to withhold a high-water content. In recent years, a large effort has been focused on tailoring the mechanical properties of these hydrogels to become more appropriate materials for use as anatomical and physiological structural supports. A few of these such methods include using diverse types of polymers, both natural and synthetic, varying the type of molecular cross-linking, as well as combining these efforts to form interpenetrating polymer network hydrogels...
June 7, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29908467/a-french-hernia-in-dubai-a-case-report
#2
Yousif H Al Abboudi, Hajer A Busharar, Labib S Alozaibi, Asnin Shah, Rafya Ahmed
INTRODUCTION: De Garengeot hernia was first described in 1731. It is rare type of hernia and there is no established mode of treatment for it to date. This work has been reported in line with the SCARE criteria (Agha et al., 2016). PRESENTATION OF CASE: We present a case of a 72 years old male with a non-reducible right inguinal swelling diagnosed to be a femoral hernia with congested appendix within. There are less than 100 cases like this reported to date in the literature...
May 31, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29908433/a-retrospective-analysis-of-the-association-between-providing-nicotine-replacement-therapy-at-admission-and-motivation-to-quit-and-nicotine-withdrawal-symptoms-during-an-inpatient-psychiatric-hospitalization
#3
Chizimuzo T C Okoli, Yazan D Al-Mrayat, Charles I Shelton, Milan Khara
BACKGROUND: Psychiatric patients have high tobacco use prevalence, dependence, and withdrawal severity. A tobacco-free psychiatric hospitalization necessitates the management of nicotine withdrawal (NW) for tobacco using patients. NW management often requires the provision of approved nicotine replacement therapy (NRT) to patients, which may also motivate tobacco users towards cessation. However, few studies have examined the associations between providing NRT, motivation to quit, and NW among psychiatric patients...
June 7, 2018: Addictive Behaviors
https://www.readbyqxmd.com/read/29908423/characterization-of-microstructural-changes-due-to-prolonged-thermal-exposure-of-directionally-solidified-ni-base-super-alloy-cm-247lc-using-ultrasonic
#4
Amretendu Mukhopadhyay, Dibyendu Chatterjee, Chandan Mondal, Sony Punnose, K Gopinath
The high temperature strength of directionally solidified Ni-base super alloy CM 247LC strongly depends on the morphology, volume fraction, size and size distribution of γ' precipitate (Ni3 Al) in the FCC γ matrix. The microstructure of the alloy is engineered to achieve the right combination of these parameters that provides the required high temperature strength and creep resistance. The alloy contains high volume fraction of coherent γ' precipitates having near cubic shape. High temperature exposure of gas turbine components made out of the alloy leads to coarsening of the γ' precipitates and broadening of the γ matrix channel...
May 16, 2018: Ultrasonics
https://www.readbyqxmd.com/read/29908414/synthesis-and-photophysical-properties-of-deuteration-of-pirfenidone
#5
Qiuju Yin, Yujie Chen, Meng Zhou, Xiangsheng Jiang, Junjun Wu, Yang Sun
In order to improve the metabolism of pirfenidone (5-methyl-1-phenylpyridin-2-one, PFD), the methyl-deuterated version of pirfenidone via the substitution of hydrogen (H) at C-5 by its isotope deuterium (D, 5D-PFD) was synthesized and its photophysical properties were investigated. The negative solvatochrom was observed in absorption and fluorescence spectra with increasing solvent polarity, which implied that intermolecular charge transfer (ICT) involved n → π* transition for both of PFD and 5D-PFD...
June 7, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29908397/estimating-global-ecosystem-service-values-and-its-response-to-land-surface-dynamics-during-1995-2015
#6
Srikanta Sannigrahi, Sandeep Bhatt, Shahid Rahmat, Saikat Kumar Paul, Somnath Sen
Changes in land use due to the industrial revolution, increasing population, ever-increasing desire for economic growth is a global concern. The aforementioned changes can have a significant impact on global and regional ecosystem services which are indispensable for human well-being and their subsistence. This study identifies several approaches (Costanza et al., de Groot et al., and Xie et al.) to estimate the value of global terrestrial ecosystem services. High resolution (300 m) land use products provided by European Space Agency-Climate Change Initiative (ESA-CCI) were used to quantify the global ecosystem service values (ESV) for 1995, 2000, 2005, 2010 and 2015 respectively...
June 13, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29908329/the-incidence-of-vocal-fold-motion-impairment-after-primary-thyroid-and-parathyroid-surgery-for-a-single-high-volume-academic-surgeon-determined-by-pre-and-immediate-post-operative-fiberoptic-laryngoscopy
#7
Vaninder K Dhillon, Eleni Rettig, Salem I Noureldine, Dane J Genther, Ahmed Hassoon, Mai G Al Khadem, Ozan B Ozgursoy, Ralph P Tufano, Charles W Cummings
BACKGROUND: Vocal fold motion impairment (VFMI) is a well-recognized complication of thyroid and parathyroid surgery. Preoperative counseling requires a thorough understanding of the incidence, risk factors, and value of early diagnosis of postoperative VFMI. Our objective is to describe the incidence of and risk factors for VFMI for a single high-volume academic surgeon, and to assess the utility of immediate postoperative fiberoptic laryngoscopy (FOL) in early diagnosis of VFMI. METHODS: Retrospective cohort study of patients undergoing primary thyroid and parathyroid procedures by a single high-volume surgeon at an academic tertiary care center...
June 13, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29908251/management-and-outcomes-of-staphylococcus-aureus-bacteraemia-at-a-south-african-referral-hospital-a-prospective-observational-study
#8
Nicola Steinhaus, Mohammed Al-Talib, Prudence Ive, Tom Boyles, Colleen Bamford, Mary-Ann Davies, Marc Mendelson, Sean Wasserman
OBJECTIVES: Limited evidence exists on the management and outcomes of Staphylococcus aureus bacteraemia (SAB) in resource-limited settings. The aim of this study was to describe a cohort of South African patients with SAB, and explore the factors associated with complicated infection and death. METHOD: A prospective observational study of patients over the age of 13 years admitted to a South African referral hospital with SAB. RESULTS: One hundred SAB infection episodes occurring in 98 patients were included...
June 13, 2018: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29908166/antineoplastic-activity-of-mitomycin-c-formulated-in-nanoemulsions-based-essential-oils-on-hela-cervical-cancer-cells
#9
Mayson H Alkhatib, Waad A Al-Otaibi, Abdulwahab Noor Wali
Combining the essential oils (ESSOs) with the chemotherapeutic agent, mitomycin C (MMC), in nanoparticle can be beneficial in cancer therapy. The aim of the current study was to in vitro evaluate the antineoplastic effect of MMC, formulated in two different nanoemulsions (NE) based on two ESSOs, chamomile (Ch) and garlic (Gar), on HeLa cervical cancer cells. The z-average diameter of Ch-NE has slightly increased from 83.39 ± 12.85 nm to 91.18 ± 5.79 nm when mixed with MMC (Ch-MMC) whereas the z-average diameter of Gar-NE has markedly increased from 50...
June 13, 2018: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29908023/prevalence-of-and-attitudes-to-waterpipe-smoking-among-saudi-arabian-physicians
#10
Mohammed Al Ghobain, Anwar Ahmed, Zynab Abdrabalnabi, Wjdan Mutairi, Ali Al Khathaami
Background: Tobacco smoking kills more than 5 million people annually and it is the most important cause of preventable death. Waterpipe smoking is common in the Middle East and is prevalent among young people. There is a misconception that it is less harmful than cigarette smoking. Physicians are considered role models in the community and their behaviours and attitudes towards smoking can have direct effects on cessation. Aim: The aim of this study was to estimate current prevalence, attitudes and associated factors in regard to waterpipe smoking among Saudi Arabian physicians...
June 10, 2018: Eastern Mediterranean Health Journal, la Revue de Santé de la Méditerranée Orientale
https://www.readbyqxmd.com/read/29908022/relationship-between-lean-practices-soft-total-quality-management-and-innovation-skills-in-lebanese-hospitals
#11
Malak Aoun, Norlena Hasnan, Hassan Al-Aaraj
Background: Lean practices are critical to eliminate waste and enhance the quality of healthcare services through different improvement approaches of total quality management (TQM). In particular, the soft side of TQM is used to develop the innovation skills of employees that are essential for the continuous improvement strategies of hospitals. Aim: The main objective was to study the relationship between lean practices, soft TQM and innovation skills in Lebanese hospitals...
June 10, 2018: Eastern Mediterranean Health Journal, la Revue de Santé de la Méditerranée Orientale
https://www.readbyqxmd.com/read/29908021/burnout-among-primary-school-teachers-in-iraq-prevalence-and-risk-factors
#12
Jasim Al-Asadi, Shukrya Khalaf, Aqeel Al-Waaly, Alaa Abed, Sabah Shami
Background: Studies from various parts of the world have shown that teachers are likely to suffer from burnout. So far, there has been no research on burnout among primary school teachers in Basrah, Iraq. Aim: We aimed to determine the prevalence and predisposing factors of self-reported burnout among primary school teachers in Basrah. Methods: This was a cross-sectional study in 32 governmental primary schools during November 2014-February 2015...
June 10, 2018: Eastern Mediterranean Health Journal, la Revue de Santé de la Méditerranée Orientale
https://www.readbyqxmd.com/read/29908020/screening-for-dysglycaemia-using-anthropometric-indices-in-an-adult-population-in-oman
#13
Shyam Sundar Ganguly, Kamalesh Sarkar, Samir Al-Adawi, Abdul Aziz Al-Mahrezi
Background: A previous community-based cross-sectional survey conducted in a semi-urban community revealed that 44% of people aged 18+ years manifest dysglycaemia, which appears to echo the national trend. There is lack of studies examining the role of anthropometric indices in people with dysglycaemia. Aim: We explored the screening ability of anthropometric indices, body mass index (BMI), waist circumference (WC), waist-to-hip ratio (WHR), and waist-to-height ratio (WHtR) to detect dysglycaemia in the adult Omani population based on a community-based survey conducted in 2005...
June 10, 2018: Eastern Mediterranean Health Journal, la Revue de Santé de la Méditerranée Orientale
https://www.readbyqxmd.com/read/29908019/health-needs-and-priorities-of-syrian-refugees-in-camps-and-urban-settings-in-jordan-perspectives-of-refugees-and-health-care-providers
#14
Tala Al-Rousan, Zaker Schwabkey, Lara Jirmanus, Brett D Nelson
Background: The United Nations has declared the Syrian refugee crisis to be the biggest humanitarian emergency of our era. Neighbouring countries, such as Jordan, strain to meet the health needs of Syrian refugees in addition to their own citizens given limited resources. Objectives: This study aimed to determine the perspectives of Syrian refugees in Jordan, Jordanian health care providers and other stakeholders in addressing the public health issues of the refugee crisis...
June 10, 2018: Eastern Mediterranean Health Journal, la Revue de Santé de la Méditerranée Orientale
https://www.readbyqxmd.com/read/29908003/molecular-cloning-of-tamate2-homoeologues-potentially-related-to-aluminium-tolerance-in-bread-wheat-triticum-aestivum-l
#15
Ana Luísa Garcia-Oliveira, César Benito, Henrique Guedes-Pinto, Paula Martins-Lopes
Recently, members of MATE family have been implicated in aluminium (Al) tolerance by facilitating citrate efflux in plants. The aim of the present work was to perform a molecular characterisation of the MATE2 gene in bread wheat. Here, we cloned a member of the MATE gene family in bread wheat and named TaMATE2, which showed the typical secondary structure of MATE-type transporters maintaining all the 12 transmembrane domains. The amplification in Chinese Spring nulli-tetrasomic and ditelosomic lines revealed that TaMATE2 is located on the long arm of homoeologous group 1 chromosomes...
June 15, 2018: Plant Biology
https://www.readbyqxmd.com/read/29907733/a-quest-for-clarity-in-bone-erosion-the-role-of-sequestosome-1-in-paget-s-disease-of-bone
#16
Megan N Michalski, Bart O Williams
Alterations in the SQSTM1 gene are a putative cause of Paget's disease of bone, yet results are conflicting about how these mutations impact osteoclasts, the cell type believed to be the main pathological contributor. In this issue of JBC, Zach et al. provide important new evidence that the protein encoded by SQSTM1 , p62, negatively regulates osteoclastogenesis and demonstrate that aged p62-deficient mice develop bone phenotypes similar to those of Paget's disease. These findings help to clarify the role of this important protein and present new opportunities to interrogate bone biology...
June 15, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29907656/temporal-trends-in-the-outcomes-of-dialysis-patients-admitted-with-acute-ischemic-stroke
#17
Fahad Alqahtani, Chalak O Berzingi, Sami Aljohani, Mohamed Al Hajji, Anas Diab, Muhammad Alvi, Khaled Boobes, Mohamad Alkhouli
BACKGROUND: There is a paucity of contemporary data on the characteristics and outcomes of acute ischemic stroke (AIS) in patients on maintenance dialysis. METHODS AND RESULTS: We used the nationwide inpatient sample to examine contemporary trends in the incidence, management patterns, and outcomes of AIS in dialysis patients. A total of 930 010 patients were admitted with AIS between 2003 and 2014, of whom 13 642 (1.5%) were on dialysis. Overall, the incidence of AIS among dialysis patients decreased significantly ( P trend <0...
June 15, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29907554/a-surveillance-infrastructure-for-malaria-analytics-provisioning-data-access-and-preservation-of-interoperability
#18
Mohammad Sadnan Al Manir, Jon Haël Brenas, Christopher Jo Baker, Arash Shaban-Nejad
BACKGROUND: According to the World Health Organization, malaria surveillance is weakest in countries and regions with the highest malaria burden. A core obstacle is that the data required to perform malaria surveillance are fragmented in multiple data silos distributed across geographic regions. Furthermore, consistent integrated malaria data sources are few, and a low degree of interoperability exists between them. As a result, it is difficult to identify disease trends and to plan for effective interventions...
June 15, 2018: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/29907439/distribution-of-biocide-resistant-genes-and-biocides-susceptibility-in-multidrug-resistant-klebsiella-pneumoniae-pseudomonas-aeruginosa-and-acinetobacter-baumannii-a-first-report-from-the-kingdom-of-saudi-arabia
#19
Rajendran Vijayakumar, Tim Sandle, Mohammad Saleh Al-Aboody, Meshal K AlFonaisan, Wael Alturaiki, Suresh Mickymaray, Mariappan Premanathan, Suliman A Alsagaby
PURPOSES: The aim of this study was to determine the frequency of biocide resistant genes, qacA, qacE and cepA in multidrug resistant (MDR) bacteria: Klebsiella pneumoniae, Pseudomonas aeruginosa and Acinetobacter baumannii and to correlate the presence or absence of resistant genes with biocides susceptibility. MATERIALS AND METHODS: The study included 44 MDR K. pneumoniae, P. aeruginosa and A. baumannii microorganisms. The bacteria were screened for the presence of biocide resistant genes by the polymerase chain reaction (PCR) method...
June 12, 2018: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/29907432/sensitivity-and-specificity-of-sentinel-lymph-node-biopsy-in-patients-with-oral-squamous-cell-carcinomas-using-indocyanine-green-fluorescence-imaging
#20
Ahmed Al-Dam, Clarissa Precht, Armelle Barbe, Carsten Kohlmeier, Henning Hanken, Johannes Wikner, Gerhard Schön, Max Heiland, Alexandre T Assaf
PURPOSE: The purpose of this clinical study was to evaluate the sensitivity and specificity of cervical sentinel lymph node biopsy after mapping with indocyanine green fluorescence (ICG) for imaging early-stage oral cancer. PATIENTS AND METHODS: A sentinel lymph node biopsy (SLNB) was performed during a selective neck dissection (SND) in 20 patients with oral squamous cell carcinoma (OSCC, cT1 or cT2, N0 status). The sentinel lymph nodes (SLN) were identified using an infrared video camera after ICG injection...
May 23, 2018: Journal of Cranio-maxillo-facial Surgery
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