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https://www.readbyqxmd.com/read/28749609/ricochet-pollination-in-senna-fabaceae-petals-deflect-pollen-jets-and-promote-division-of-labour-among-flower-organs
#1
Thiago Amorim, Brigitte Marazzi, Arlete A Soares, Eliana R Forni-Martins, Celli R Muniz, Christian Westerkamp
Naturalists Fritz and Hermann Müller hypothesised that heteranthery often leads to a division of labour into 'feeding' and 'pollinating' stamens; the latter often being as long as the pistil so as to promote successful pollination on the bees' back. In many buzz-pollinated species of Senna, however, the so-called pollinating stamens are short and do not level with the stigma, raising the question of how pollen is shed on the bees' back. Here we explore a mechanism called "ricochet pollination". We test whether division of labour is achieved through the interaction between short lower stamens and strongly concave "deflector petals"...
July 27, 2017: Plant Biology
https://www.readbyqxmd.com/read/28749587/regional-survey-supports-national-initiative-for-water-only-schools-in-new-zealand
#2
Osman David Mansoor, Rukhsana Ali, Ruth Richards
OBJECTIVE: To support a national initiative to remove sugary drinks from schools and limit drinks to water or unflavoured milk ('water-only'). METHODS: We emailed all 201 schools with primary school aged children in the Greater Wellington region with a survey on (1) current status of, (2) support needs for, and (3) barriers to or lessons learned from, a 'water-only' school policy. RESULTS: Only 78 (39%) of schools responded. Most supported 'water-only': 22 (28%) had implemented a policy; 10 (13%) in process of doing so; 22 (28%) were considering it; and 12 (15%) were 'water-only', but did not have a policy...
July 27, 2017: Australian and New Zealand Journal of Public Health
https://www.readbyqxmd.com/read/28749563/a-probabilistic-framework-for-risk-analysis-of-widespread-flood-events-a-proof-of-concept-study
#3
Klaus Schneeberger, Matthias Huttenlau, Benjamin Winter, Thomas Steinberger, Stefan Achleitner, Johann Stötter
This article presents a flood risk analysis model that considers the spatially heterogeneous nature of flood events. The basic concept of this approach is to generate a large sample of flood events that can be regarded as temporal extrapolation of flood events. These are combined with cumulative flood impact indicators, such as building damages, to finally derive time series of damages for risk estimation. Therefore, a multivariate modeling procedure that is able to take into account the spatial characteristics of flooding, the regionalization method top-kriging, and three different impact indicators are combined in a model chain...
July 27, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28749525/perceived-barriers-to-implementing-screening-and-brief-intervention-for-alcohol-consumption-by-adolescents-in-hospital-emergency-department-in-spain
#4
María Falcón, Javier Navarro-Zaragoza, Rosa María García-Rodríguez, Daniel Nova-López, María Dulce González-Navarro, María Mercadal, Oscar García-Algar, Aurelio Luna Ruiz-Cabello
BACKGROUND: Screening for alcohol consumption in adolescents is widely justified in the health care field because of the particular vulnerability of this population, which starts drinking alcohol at a very early age and frequently consumes high levels of the same. Hospital emergency departments (ED) could be a good venue to manage early detection and carry out brief intervention (BI) programmes. OBJECTIVES: The aim of this study was to identify perceived barriers for medical staff of three hospitals in Spain to successfully implement a protocol for alcohol detection and BI for minors in the ED...
July 14, 2017: Adicciones
https://www.readbyqxmd.com/read/28749495/characterization-of-a-highly-efficient-antibiotic-degrading-metallo-%C3%AE-lactamase-obtained-from-an-uncultured-member-of-a-permafrost-community
#5
Marcelo Monteiro Pedroso, Christopher Selleck, Charmaine Enculescu, Jeffrey R Harmer, Nataša Mitić, Whitney R Craig, Waleed Helweh, Philip Hugenholtz, Gene W Tyson, David L Tierney, James A Larrabee, Gerhard Schenk
Antibiotic resistance is a major global health problem, one that threatens to derail the benefits garnered from arguably the greatest success of modern medicine, the discovery of antibiotics. Among the most potent agents contributing to antibiotic resistance are metallo-β-lactamases (MBLs). The discovery of MBL-like enzymes in microorganisms that are not in contact with the human population is of particular concern as these proteins already have the in-built capacity to inactivate antibiotics, even though they may not need MBL activity for their survival...
July 27, 2017: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/28749439/effects-of-melatonin-on-early-pregnancy-in-mouse-involving-the-regulation-of-star-cyp11a1-and-ihh-expression
#6
Shengyu Guan, Lu Xie, Teng Ma, Dongying Lv, Wang Jing, Xiuzhi Tian, Yukun Song, Zhiping Liu, Xianghong Xiao, Guoshi Liu
To test whether melatonin plays an important role in the process of early pregnancy, melatonin was given in drinking water to pregnant mice at different gestation stages. These included mice who were given melatonin 14 days prior to their successful mating (confirmed by vaginal plug) (Group A), after successful mating (Group B), and 14 days prior to and until after successful mating (Group C). Melatonin administration significantly enhanced serum as well as ovarian melatonin levels in the mice. It was observed that melatonin did not affect the natural estrous of mice...
July 27, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28749424/drug-discovery-by-molecular-imaging-and-monitoring-therapy-response-in-lymphoma
#7
REVIEW
Senthilkumar Kalimuthu, Ju Hye Jeong, Ji Min Oh, Byeong-Cheol Ahn
Molecular imaging allows a noninvasive assessment of biochemical and biological processes in living subjects. Treatment strategies for malignant lymphoma depend on histology and tumor stage. For the last two decades, molecular imaging has been the mainstay diagnostic test for the staging of malignant lymphoma and the assessment of response to treatment. This technology enhances our understanding of disease and drug activity during preclinical and clinical drug development. Here, we review molecular imaging applications in drug development, with an emphasis on oncology...
July 27, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28749399/re-establishment-of-normal-radioactive-iodine-uptake-reference-range-in-the-era-of-universal-salt-iodization-in-the-indian-population
#8
Sanjana Ballal, Ramya Soundararajan, Chandrasekhar Bal
BACKGROUND & OBJECTIVES: The reference radioactive iodine uptake (RAIU) values established in the 1970s in the era of widespread iodine deficiency were relatively high. Now, after four decades of successful Universal Salt Iodization (USI) programme in India, there is a need to re-establish these reference ranges. The present study was aimed to quantify the two-hour and 24-h RAIU values in iodine sufficient euthyroid individuals and validate the results in Graves' and Hashimoto's thyroiditis patients...
March 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28749366/robust-learning-with-kernel-mean-p-power-error-loss
#9
Badong Chen, Lei Xing, Xin Wang, Jing Qin, Nanning Zheng
Correntropy is a second order statistical measure in kernel space, which has been successfully applied in robust learning and signal processing. In this paper, we define a nonsecond order statistical measure in kernel space, called the kernel mean-p power error (KMPE), including the correntropic loss (C-Loss) as a special case. Some basic properties of KMPE are presented. In particular, we apply the KMPE to extreme learning machine (ELM) and principal component analysis (PCA), and develop two robust learning algorithms, namely ELM-KMPE and PCA-KMPE...
July 25, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28749356/improving-alzheimeres-disease-classification-by-combining-multiple-measures
#10
Jin Liu, Jianxin Wang, Zhenjun Tang, Bin Hu, Fang-Xiang Wu, Yi Pan
Several anatomical magnetic resonance imaging (MRI) markers for Alzheimer's disease (AD) have been identified. Cortical gray matter volume, cortical thickness, and subcortical volume have been used successfully to assist the diagnosis of Alzheimer's disease (AD) including its early warning and developing stages, e.g., mild cognitive impairment (MCI) including MCI converted to AD (MCIc) and MCI not converted to AD (MCInc). Currently, these anatomical MRI measures have mainly been used separately. Thus, the full potential of anatomical MRI scans for AD diagnosis might not yet have been used optimally...
July 25, 2017: IEEE/ACM Transactions on Computational Biology and Bioinformatics
https://www.readbyqxmd.com/read/28749344/giant-magnetoresistive-biosensor-array-for-detecting-magnetorelaxation
#11
Xiahan Zhou, Chih-Cheng Huang, Drew A Hall
In this paper, a time-domain magnetorelaxometry biosensing scheme is presented using giant magnetoresistive (GMR) sensors to measure the fast relaxation response of superparamagnetic magnetic nanoparticles (MNPs) in a pulsed magnetic field. The system consists of an 8 × 10 GMR sensor array, a Helmholtz coil, an electromagnet driver, and an integrator-based analog front-end needed to capture the fast relaxation dynamics of MNPs. A custom designed electromagnet driver and Helmholtz coil improve the switch-off speed to >5 Oe/μs, limiting the dead zone time to <10 μs, and thus enables the system to monitor fast relaxation processes of 30 nm MNPs...
August 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28749306/successful-treatment-of-digital-osteitis-by-intravenous-regional-perfusion-of-ceftiofur-in-an-african-elephant-loxodonta-africana
#12
Christopher J Dutton, Pauline G Delnatte, Simon R Hollamby, Graham J Crawshaw
A 41-yr-old African elephant ( Loxodonta africana ) presented with a swollen third digit of the left forelimb and a 2-cm hole in the pad. Corrective trimming, topical treatments, and an oral antibiotic resulted in apparent resolution; however, it reoccurred after 4 mo. Radiographs suggested bone lysis in the third phalanx, with the primary differential diagnosis being septic osteitis. Flushing with metronidazole solution and intravenous regional perfusion (IVRP) of the foot were commenced. A tourniquet was applied just above the carpus, an interdigital vein was identified by ultrasound, and into this vein 2 g (20 ml) of ceftiofur sodium solution, followed by 60 ml of heparinized saline, was administered...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749298/successful-management-of-cecal-perforation-and-focal-peritonitis-in-a-gorilla-gorilla-gorilla-gorilla
#13
Sarah R Therio, Liza I Dadone, Michael M Garner, Jason Arble, Charles J Lalonde, Thomas J Baesl, Mindy Siegel, John A Marta, Dirk P Pikaart, Matthew S Johnston
An 18-yr-old female Western lowland gorilla ( Gorilla gorilla gorilla) presented with acute-onset severe lethargy, bloody vaginal discharge, decreased appetite, and an abnormal posture. The gorilla was diagnosed with a ruptured cecal blind sac with severe adhesions to the right ovary. A typhlectomy and unilateral ovariectomy were performed. Histologic examination identified a severe transmural circumferential typhlitis with rupture and adhesions to the infundibulum and chronic typhlitis. Postoperative management included antibiotics, analgesics, short-term dietary modifications, and probiotics for suspect oral candidiasis...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749293/diagnosis-and-successful-treatment-of-a-potentially-zoonotic-dermatophytosis-caused-by-microsporum-gypseum-in-a-zoo-housed-north-american-porcupine-erethizon-dorsatum
#14
Christine E Hackworth, David Eshar, Melissa Nau, Mary Bagladi-Swanson, Gordon A Andrews, James W Carpenter
A female North American porcupine ( Erethizon dorsatum ) was evaluated for a unilateral pedal crusting and alopecic dermatopathy. Fungal culture and histopathology testing revealed Microsporum gypseum dermatophytosis. Treatment with topical miconazole was initiated and then discontinued after 9 days and changed to oral terbinafine. Twenty-eight days after initial examination, clinical signs were improving, and fungal cultures of the front foot, muzzle, and noninfected area along the dorsum were negative for M...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749276/obstetrical-and-postpartum-complications-in-lesser-madagascar-hedgehog-tenrecs-echinops-telfairi-four-cases
#15
Kimberly A Thompson, Dalen Agnew, Sally A Nofs, Tara M Harrison
Currently, little is known about diseases and health concerns in tenrecs, family Tenrecidae. During the past 10 yr of breeding lesser Madagascar hedgehog tenrecs ( Echinops telfairi ) at a single zoological institution, a diverse range of obstetric and postpartum complications have been observed: pyometra, metritis, retained fetal membranes, retained fetus, perinatal mortality, and maternal neglect with subsequent successful hand-rearing of neonates. Treatment of these problems is complicated in tenrecs because of their small size and secretive behavior...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749251/identification-of-spirocyclic-or-phosphate-substituted-quinolizine-derivatives-as-novel-hiv-1-integrase-inhibitors-a-patent-evaluation-of-wo2016094197a1-wo2016094198a1-and-wo2016154527a1
#16
Xiqiang Cheng, Ping Gao, Lin Sun, Ye Tian, Peng Zhan, Xinyong Liu
Highly active antiretroviral therapy (HAART) has been widely adopted to control the HIV-1 infection successfully. HIV-1 integrase (IN) inhibitors are primary drugs in HAART regimens targeting integration step in the HIV-1 life cycle. However, due to the emergence of viral resistance and cross-resistance amongst drugs, there is a pressing need for new and potent IN inhibitors. This review covers the three patents describing spirocyclic and phosphate substituted quinolizine derivatives as novel HIV-1 IN inhibitors for the discovery of new anti-HIV-1 drug candidates...
July 27, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/28749234/the-importance-of-critical-life-moments-an-explorative-study-of-successful-women-with-autism-spectrum-disorder
#17
Amanda A Webster, Susanne Garvis
Ten women with autism spectrum disorder participated in oral interviews in order to share their experiences since their diagnosis and to discuss the factors that had enabled them to achieve success in different aspects of their life. Participants were encouraged to share their perspectives on their success and to discuss the challenges they encountered in their daily lives and how they overcame these. Interviews were analysed using a narrative-themed approach. Participants indicated that both internal and external factors enabled them to achieve success in different aspects of their lives...
August 2017: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/28749150/positive-and-negative-assessment-center-feedback-in-relation-to-development-self-efficacy-feedback-seeking-and-promotion
#18
Nikolaos Dimotakis, Deb Mitchell, Todd Maurer
In this field study we examined both positive and negative developmental feedback given in managerial assessment centers in relation to employees' self-efficacy for their ability to improve their relevant skills assessed in the centers, the extent to which they sought subsequent feedback from others at work, and the career outcome of being promoted to a higher level position within the organization. We found that feedback was related to self-efficacy for improvement which was in turn positively related to feedback seeking, which was positively linked to the career outcome of promotion (e...
July 27, 2017: Journal of Applied Psychology
https://www.readbyqxmd.com/read/28749140/geometric-dependent-drying-in-dead-end-nanochannels
#19
Quan Xie, Siyang Xiao, Chuanhua Duan
Liquid drying in nanoporous media is a key process in food, textile, oil and energy industries, but the corresponding kinetics remains poorly understood due to the structural complexity of nanoporous media. Here, we directly observe the drying process and study drying kinetics in single two-dimensional (2-D) nanochannels with height ranging from 29 nm to 122 nm. Two different drying behaviors are discovered in such nanoconfinements, continuous meniscus receding and discontinuous meniscus receding due to liquid bridge formation ahead of the meniscus, albeit similar drying rates...
July 27, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28749101/barriers-to-cervical-cancer-and-breast-cancer-screening-uptake-in-low-income-and-middle-income-countries-a-systematic-review
#20
Rakibul M Islam, Baki Billah, Md Nassif Hossain, John Oldroyd
Background: Cervical cancer (CCa) and breast cancer (BCa) are the two leading cancers in women worldwide. Early detection and education to promote early diagnosis and screening of CCa and BCa greatly increases the chances for successful treatment and survival. Screening uptake for CCa and BCa in low and middle - income countries (LMICs) is low, and is consequently failing to prevent these diseases. We conducted a systematic review to identify the key barriers to CCa and BCa screening in women in LMICs. Methods: We performed a systematic literature search using Ovid MEDLINE, EMBASE, PsycINFO, SCOPUS, CINHAL Plus, and Google scholar to retrieve all English language studies from inception to 2015...
July 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
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