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https://www.readbyqxmd.com/read/28102958/sliding-window-prior-data-assisted-compressed-sensing-for-mri-tracking-of-lung-tumors
#1
Eugene Yip, Jihyun Yun, Keith Wachowicz, Zsolt Gabos, Satyapal Rathee, B G Fallone
PURPOSE: Hybrid magnetic resonance imaging and radiation therapy devices are capable of imaging in real-time to track intrafractional lung tumor motion during radiotherapy. Highly accelerated magnetic resonance (MR) imaging methods can potentially reduce system delay time and/or improves imaging spatial resolution, and provide flexibility in imaging parameters. Prior Data Assisted Compressed Sensing (PDACS) has previously been proposed as an acceleration method that combines the advantages of 2D compressed sensing and the KEYHOLE view-sharing technique...
January 2017: Medical Physics
https://www.readbyqxmd.com/read/28102907/global-lessons-from-successful-rhinoceros-conservation-in-nepal
#2
Achyut Aryal, Krishna Prasad Acharya, Uttam Babu Shrestha, Maheshwar Dhakal, David Raubenhiemer, Wendy Wright
Global populations of rhinoceros have declined alarmingly, from about 500,000 at the beginning of the 20(th) century to 29,000 in 2016, largely due to an escalation of poaching for rhinoceros horn (Traffic 2016; Biggs et al. 2013). The current global rhino population is comprised of three Asian Species and two African species, the latter located in South Africa, Kenya, Tanzania, Namibia and Zimbabwe,. In Africa, the Southern white rhinoceros population is estimated at 20,700; and there are estimated to be around 4,885 black rhinoceros...
January 19, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/28102791/an-exemplar-of-naturalistic-inquiry-in-general-practice-research
#3
Susan McInnes, Kath Peters, Andrew Bonney, Elizabeth Halcomb
Background Before beginning any research project, novice researchers must consider which methodological approach will best address their research questions. The paucity of literature describing a practical application of naturalistic inquiry adds to the difficulty they may experience. Aim To provide a practical example of how naturalistic inquiry was applied to a qualitative study exploring collaboration between registered nurses and general practitioners working in Australian general practice. Discussion Naturalistic inquiry is not without its critics and limitations...
January 23, 2017: Nurse Researcher
https://www.readbyqxmd.com/read/28102497/regulated-partitioning-of-fixed-carbon-14-c-sodium-na-potassium-k-and-glycine-betaine-determined-salinity-stress-tolerance-of-gamma-irradiated-pigeonpea-cajanus-cajan-l-millsp
#4
Pankaj Kumar, Vasundhara Sharma, Chobhe Kapil Atmaram, Bhupinder Singh
Soil salinity is a major constraint that limits legume productivity. Pigeonpea is a salt sensitive crop. Seed gamma irradiation at a very low dose (2.5 Gy) is known to enhance seedling establishment, plant growth and yield of cereals and other crops. The present study conducted using two genetically diverse varieties of pigeonpea viz., Pusa-991 and Pusa-992 aimed at establishing the role of pre-sowing seed gamma irradiation at 0, 0.0025, 0.005, 0.01, 0.02, 0.05 and 0.1 kGy on plant growth, seed yield and seed quality under salt stress at 0, 80 and 100 mM NaCl (soil solution EC equivalent 1...
January 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28102495/pregnancy-after-roux-en-y-gastric-bypass-nutritional-and-biochemical-aspects
#5
Jessica Cristina Gimenes, Carolina Ferreira Nicoletti, Marcela Augusta de Souza Pinhel, Bruno Affonso Parenti de Oliveira, Wilson Salgado Júnior, Júlio Sérgio Marchini, Carla Barbosa Nonino
INTRODUCTION: Although pregnancy after bariatric surgery is related to risk reduction, nutritional complications may occur. This study aimed to evaluate nutritional and biochemical indicators of women who became pregnant after Roux en Y gastric bypass (RYGB). MATERIALS AND METHODS: We carried out a retrospective study with women who became pregnant after RYGB. We evaluated anthropometric, biochemical, and dietary intake indicators in the preoperative period and before, during, and after pregnancy by analysis of medical records...
January 19, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28102321/the-chaperonin-cct-inhibits-assembly-of-%C3%AE-synuclein-amyloid-fibrils-by-a-specific-conformation-dependent-interaction
#6
Begoña Sot, Alejandra Rubio-Muñoz, Ahudrey Leal-Quintero, Javier Martínez-Sabando, Miguel Marcilla, Cintia Roodveldt, José M Valpuesta
The eukaryotic chaperonin CCT (chaperonin containing TCP-1) uses cavities built into its double-ring structure to encapsulate and to assist folding of a large subset of proteins. CCT can inhibit amyloid fibre assembly and toxicity of the polyQ extended mutant of huntingtin, the protein responsible for Huntington's disease. This raises the possibility that CCT modulates other amyloidopathies, a still-unaddressed question. We show here that CCT inhibits amyloid fibre assembly of α-synuclein A53T, one of the mutants responsible for Parkinson's disease...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102269/from-morphogen-to-morphogenesis-and-back
#7
Darren Gilmour, Martina Rembold, Maria Leptin
A long-term aim of the life sciences is to understand how organismal shape is encoded by the genome. An important challenge is to identify mechanistic links between the genes that control cell-fate decisions and the cellular machines that generate shape, therefore closing the gap between genotype and phenotype. The logic and mechanisms that integrate these different levels of shape control are beginning to be described, and recently discovered mechanisms of cross-talk and feedback are beginning to explain the remarkable robustness of organ assembly...
January 18, 2017: Nature
https://www.readbyqxmd.com/read/28102259/elements-of-cancer-immunity-and-the-cancer-immune-set-point
#8
Daniel S Chen, Ira Mellman
Immunotherapy is proving to be an effective therapeutic approach in a variety of cancers. But despite the clinical success of antibodies against the immune regulators CTLA4 and PD-L1/PD-1, only a subset of people exhibit durable responses, suggesting that a broader view of cancer immunity is required. Immunity is influenced by a complex set of tumour, host and environmental factors that govern the strength and timing of the anticancer response. Clinical studies are beginning to define these factors as immune profiles that can predict responses to immunotherapy...
January 18, 2017: Nature
https://www.readbyqxmd.com/read/28102154/effectiveness-of-treatment-of-idiopathic-scoliosis-by-spinecor-dynamic-bracing-with-special-physiotherapy-programme-in-spinecor-system
#9
Karina Rożek, Tomasz Potaczek, Maja Zarzycka, Ewa Lipik, Barbara Jasiewicz
BACKGROUND: The SpineCor dynamic brace for the treatment of idiopathic scoliosis is designed to maintain the correct position of the spine and a new movement strategy for 20 hours per day. The SpineCor exercise system intensifies and complements the brace treatment. This study evaluated the effectiveness of a comprehensive treatment of idiopathic scoliosis involving the SpineCor system. MATERIAL AND METHODS: The study assessed a group of 40 patients (38 girls and 2 boys) with idiopathic scoliosis treated with the SpineCor brace...
October 28, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28102029/biochemical-markers-to-predict-internal-browning-disorders-in-rocha-pear-during-storage-under-high-co2
#10
Teresa Deuchande, Christian Larrigaudière, Umbelina Guterres, Susana M P Carvalho, Marta W Vasconcelos
BACKGROUND: The aim of this study was to identify biochemical markers to predict internal browning disorders (IBD) in 'Rocha' pear. Fruit from five orchards were stored for 45 days under cold air followed by 100 days in browning inducing controlled atmosphere (CA) conditions (1 kPa O2 + 10 kPa CO2 ). RESULTS: Relationships between concentrations of ethanol (EtOH), acetaldehyde (AcDH), ascorbic acid (AA) and the activities of peroxidase (POX) and polyphenoloxidase (PPO) and IBD incidence were established...
January 19, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28101543/the-recent-development-of-efficient-earth-abundant-transition-metal-nanocatalysts
#11
REVIEW
Dong Wang, Didier Astruc
Whereas noble metal compounds have long been central in catalysis, Earth-abundant metal-based catalysts have in the same time remained undeveloped. Yet the efficacy of Earth-abundant metal catalysts was already shown at the very beginning of the 20th century with the Fe-catalyzed Haber-Bosch process of ammonia synthesis and later in the Fischer-Tropsch reaction. Nanoscience has revolutionized the world of catalysis since it was observed that very small Au nanoparticles (NPs) and other noble metal NPs are extraordinarily efficient...
January 19, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28101492/trends-and-predictors-of-chemotherapy-use-among-thyroid-cancer-patients-in-the-national-cancer-database-2004-2013
#12
Stacey A Fedewa, Ahmedin Jemal, Amy Y Chen
BACKGROUND/AIM: Beginning in 2011, the Food and Drug Administration (FDA) approved the use of multikinase inhibitors (MKIs) for medullary thyroid cancers (MTCs), and in 2013 MKIs were approved for metastatic differentiated thyroid cancers (DTCs). However, little is known about the use of chemotherapy in thyroid cancer patients. Thus, the goal of our study was to describe patterns of chemotherapy use, including MKIs, among DTC and MTC patients in the National Cancer Database (NCDB). METHODS: Chemotherapy use, along with other treatment types (surgery and radiation), was assessed between 2004 and 2013...
December 2016: European Thyroid Journal
https://www.readbyqxmd.com/read/28101273/who-scared-the-cat-a-molecular-crime-scene-investigation-laboratory-exercise
#13
Laura E Ott, Susan D Carson
This introductory laboratory exercise gives first-year life science majors or nonmajors an opportunity to gain knowledge and experience in basic bioinformatics and molecular biology laboratory techniques and analysis in the context of a mock crime scene investigation. In this laboratory, students determine if a human (Lady) or dog (Kona) committed the fictional crime of scaring a cat. Students begin by performing in silico PCR using provided dog- and human-specific PCR primers to determine the sequences to be amplified and predict PCR amplicon sizes...
December 2016: Journal of Microbiology & Biology Education: JMBE
https://www.readbyqxmd.com/read/28101261/external-and-internal-barriers-to-studying-can-affect-student-success-and-retention-in-a-diverse-classroom
#14
Laurence Clement
Although a majority of under-represented minority (URM) students begin their postsecondary education at community colleges, little is known about barriers to success and retention for transfer-bound science students. This study focuses on some of the barriers that affect these students' ability to study adequately for a community college "gateway" course. It tests whether instructors' expectations of study time were realistic for community college students and whether students reported facing external barriers, such as job and family responsibilities, or internal barriers to studying, such as lack of motivational, cognitive, and metacognitive abilities, all of which have been shown to impact academic success and retention...
December 2016: Journal of Microbiology & Biology Education: JMBE
https://www.readbyqxmd.com/read/28101122/start-early-does-social-instability-during-the-pre-and-early-postnatal-development-prepare-male-wild-cavies-for-social-challenge-later-in-life
#15
Katja Siegeler, Lars Lewejohann, Klaus Failing, Norbert Sachser, Sylvia Kaiser
BACKGROUND: The social environment the mother experiences during pregnancy and lactation can powerfully influence the offspring's behavioural profile. Our previous studies in wild cavies show that two different social environments during pregnancy and lactation bring about different behavioural strategies of male offspring later in life: An unstable social environment leads to a behavioural camouflage strategy, hypothesised to be beneficial at times of socially challenging situations...
2017: Frontiers in Zoology
https://www.readbyqxmd.com/read/28101116/journey-to-motherhood-in-the-first-year-after-child-birth
#16
Nahid Javadifar, Fereshteh Majlesi, Alireza Nikbakht, Saharnaz Nedjat, Ali Montazeri
Objective: Child bearing is a period of psychological challenges that must be viewed in a social context. This study reports the maternal transition from the perspective of Iranian first-time mothers in the first year after childbirth. Materials and methods: Qualitative method was chosen for explanation of mothers' individual experiences of motherhood.26 first-time mothers (aged 18-35 years old with various socio-economic status) who had delivered between 0-1 year prior to the interviews participated in the study...
September 2016: Journal of Family & Reproductive Health
https://www.readbyqxmd.com/read/28100943/comparison-of-the-clinical-outcome-and-complications-in-laparoscopic-hernia-repair-of-inguinal-hernia-with-mesh-fixation-using-fibrin-glue-vs-tacker
#17
Prasant Chandra, Deepak Phalgune, Shashank Shah
Although laparoscopic repair offers a quick and less morbid way of treating hernias, complications like hematoma, seroma, neuralgia, recurrence, mesh infection, hydrocele, etc. are known. The present study was undertaken to compare various clinical outcomes between mesh fixation using fibrin glue and mesh fixation with tacker in a 3-months follow-up. One hundred patients aged 18 to 60 years having inguinal hernia admitted in Poona Hospital and Research Centre, Pune, between October 2012 and November 2014 for laparoscopic hernia surgery and ready to participate in this study were included...
December 2016: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28100845/role-of-prometastatic-factors-in-gastric-cancer-development
#18
Marta Tkacz, Maciej Tarnowski, Marzena Staniszewska, Andrzej Pawlik
The second half of the 20th century has seen a sharp worldwide decline in both the incidence and mortality of gastric cancer. Despite this, gastric cancer is the most common cause of mortality in the world. It is closely related to the commonly asymptomatic course at the beginning and delayed diagnosis. Approximately 90‑97% of stomach cancers are adenocarcinomas, which may be subdivided histologically into two categories - intestinal type, and diffuse type. Cancer metastasis is a complex multi‑step process that is closely associated with tumor phenotype...
December 31, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28100689/effectiveness-and-duration-of-protection-of-one-dose-of-a-meningococcal-conjugate-vaccine
#19
Amanda C Cohn, Jessica R MacNeil, Lee H Harrison, Ruth Lynfield, Arthur Reingold, William Schaffner, Elizabeth R Zell, Brian Plikaytis, Xin Wang, Nancy E Messonnier
BACKGROUND: Meningococcal conjugate vaccines were licensed beginning in 2005 on the basis of serologic end points and recommended for use in adolescents. A single dose at age 11 to 12 years was expected to provide protection through late adolescence. We conducted a case-control evaluation of vaccine effectiveness (VE) and duration of protection of a meningococcal (groups A, C, W, and Y) polysaccharide diphtheria toxoid conjugate vaccine (MenACWY-D). METHODS: Cases of culture- or polymerase chain reaction-confirmed serogroup A, C, W, and Y meningococcal disease among adolescents were identified through meningococcal disease surveillance sites in the United States from January 1, 2006, through August 31, 2013...
January 18, 2017: Pediatrics
https://www.readbyqxmd.com/read/28100653/minocycline-blocks-glial-cell-activation-and-ventilatory-acclimatization-to-hypoxia
#20
Jennifer Ann Stokes, Tara Elizabeth Arbogast, Esteban A Moya, Zhenxing Fu, Frank L Powell
Ventilatory acclimatization to hypoxia (VAH) is the time-dependent increase in ventilation, which persists upon return to normoxia, and involves plasticity in both central nervous system respiratory centers and peripheral chemoreceptors. We investigated the role of glial cells in VAH in male Sprague Dawley rats using minocycline, an antibiotic that inhibits microglia activation and has anti-inflammatory properties, and barometric pressure plethysmography to measure ventilation. Rats received either minocycline (45mg/kg, i...
January 18, 2017: Journal of Neurophysiology
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