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https://www.readbyqxmd.com/read/28431349/impacts-of-environmental-factors-on-arsenate-biotransformation-and-release-in-microcystis-aeruginosa-using-the-taguchi-experimental-design-approach
#1
Zhenhong Wang, Zhuanxi Luo, Changzhou Yan, Baoshan Xing
Very limited information is available on how and to what extent environmental factors influence arsenic (As) biotransformation and release in freshwater algae. These factors include concentrations of arsenate (As(V)), dissolved inorganic nitrogen (N), phosphate (P), and ambient pH. This study conducted a series of experiments using Taguchi methods to determine optimum conditions for As biotransformation. We assessed principal effective factors of As(V), N, P, and pH and determined that As biotransformation and release actuate at 10...
April 18, 2017: Water Research
https://www.readbyqxmd.com/read/28431131/dnaprodb-an-interactive-tool-for-structural-analysis-of-dna-protein-complexes
#2
Jared M Sagendorf, Helen M Berman, Remo Rohs
Many biological processes are mediated by complex interactions between DNA and proteins. Transcription factors, various polymerases, nucleases and histones recognize and bind DNA with different levels of binding specificity. To understand the physical mechanisms that allow proteins to recognize DNA and achieve their biological functions, it is important to analyze structures of DNA-protein complexes in detail. DNAproDB is a web-based interactive tool designed to help researchers study these complexes. DNAproDB provides an automated structure-processing pipeline that extracts structural features from DNA-protein complexes...
April 20, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28430994/personhood-and-natural-kinds-why-cognitive-status-need-not-affect-moral-status
#3
Joseph Vukov
Lockean accounts of personhood propose that an individual is a person just in case that individual is characterized by some advanced cognitive capacity. On these accounts, human beings with severe cognitive impairment are not persons. Some accept this result-I do not. In this paper, I therefore advance and defend an account of personhood that secures personhood for human beings who are cognitively impaired. On the account for which I argue, an individual is a person just in case that individual belongs to a natural kind that is normally characterized by advanced cognitive capacities...
April 19, 2017: Journal of Medicine and Philosophy
https://www.readbyqxmd.com/read/28430545/effects-of-motivation-rewarding-hackers-for-undetected-attacks-cause-analysts-to-perform-poorly
#4
Zahid Maqbool, Nidhi Makhijani, V S Chandrasekhar Pammi, Varun Dutt
OBJECTIVE: The aim of this study was to determine how monetary motivations influence decision making of humans performing as security analysts and hackers in a cybersecurity game. BACKGROUND: Cyberattacks are increasing at an alarming rate. As cyberattacks often cause damage to existing cyber infrastructures, it is important to understand how monetary rewards may influence decision making of hackers and analysts in the cyber world. Currently, only limited attention has been given to this area...
May 2017: Human Factors
https://www.readbyqxmd.com/read/28430382/mixed-evidence-for-the-erosion-of-inter-tactical-genetic-correlations-through-intralocus-tactical-conflict
#5
Kyana N Pike, Joseph L Tomkins, Bruno A Buzatto
Alternative reproductive tactics, whereby members of the same sex use different tactics to secure matings are often associated with conditional intrasexual dimorphisms. Given the different selective pressures on males adopting each mating tactic,, intrasexual dimorphism is more likely to arise if phenotypes are genetically uncoupled and free to evolve towards their phenotypic optima. However, in this context, genetic correlations between male morphs could result in intralocus tactical conflict. We investigated the genetic architecture of male dimorphism in bulb mites (Rhizoglyphus echinopus) and earwigs (Forficula auricularia)...
April 21, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/28430334/chondro-keratoprosthesis-an-alternative-to-ookp
#6
Louis Hoffart, Laurent Guyot
PURPOSE: To evaluate the use of cartilage as a potential graft material toward osteo-odontal tissue replacement in keratoprosthesis surgery. METHODS: We describe a modification of the osteo-odonto-keratoprosthesis surgery that involves the use of autologous auricular conchal cartilage graft (ACCG). In stage 1a, a full-thickness cheek mucosa graft was performed over the ocular surface. In stage 1b, ACCG was harvested via a retroauricular approach. An optical polymethyl-methacrylate cylinder was embedded into a double-layered fragment of cartilage and secured by cyanoacrylate glue...
April 4, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28430309/variation-in-use-of-technology-among-vascular-access-specialists-an-analysis-of-the-picc1-survey
#7
Vineet Chopra, Latoya Kuhn, David Ratz, Suzanne Winter, Peter J Carr, David Paje, Sarah L Krein
BACKGROUND: While the use of technologies such as ultrasound and electrocardiographic (ECG) guidance systems to place peripherally inserted central catheters (PICCs) has grown, little is known about the clinicians who use these tools or their work settings. METHODS: Using data from a national survey of vascular access specialists, we identified technology users as PICC inserters that: (a) use ultrasound to find a suitable vein for catheter placement; (b) measure catheter-to-vein ratio; and (c) use ECG for PICC placement...
April 20, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28430254/lensless-wide-field-single-shot-imaging-through-turbid-media-based-on-object-modulated-speckles
#8
Pengfei Wu, Zi Liang, Xing Zhao, Lei Su, Lipei Song
The need to image objects through light-scattering materials is common in a range of applications. Different methods have been investigated to acquire the image of the object when diffusers are presented. In this paper, we demonstrate the object reconstruction with single-shot imaging based on the correlography principle and phase retrieval algorithm with coherent illumination. We prove the possibility of reconstructing positive and negative objects in both transmission and reflection modes with collimated and scattered light...
April 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28430155/dynamic-construction-scheme-for-virtualization-security-service-in-software-defined-networks
#9
Zhaowen Lin, Dan Tao, Zhenji Wang
For a Software Defined Network (SDN), security is an important factor affecting its large-scale deployment. The existing security solutions for SDN mainly focus on the controller itself, which has to handle all the security protection tasks by using the programmability of the network. This will undoubtedly involve a heavy burden for the controller. More devastatingly, once the controller itself is attacked, the entire network will be paralyzed. Motivated by this, this paper proposes a novel security protection architecture for SDN...
April 21, 2017: Sensors
https://www.readbyqxmd.com/read/28430120/autonomous-multi-robot-search-for-a-hazardous-source-in-a-turbulent-environment
#10
Branko Ristic, Daniel Angley, Bill Moran, Jennifer L Palmer
Finding the source of an accidental or deliberate release of a toxic substance into the atmosphere is of great importance for national security. The paper presents a search algorithm for turbulent environments which falls into the class of cognitive (infotaxi) algorithms. Bayesian estimation of the source parameter vector is carried out using the Rao-Blackwell dimension-reduction method, while the robots are controlled autonomously to move in a scalable formation. Estimation and control are carried out in a centralised replicated fusion architecture assuming all-to-all communication...
April 21, 2017: Sensors
https://www.readbyqxmd.com/read/28430071/genetic-fingerprints-and-national-security
#11
Beau P Sperry, Megan Allyse, Richard R Sharp
No abstract text is available yet for this article.
May 2017: American Journal of Bioethics: AJOB
https://www.readbyqxmd.com/read/28430026/expanding-the-types-of-clients-receiving-sex-therapy-and-sexual-health-services
#12
Barry McCarthy, Lana Wald Ross
The provision of sex therapy primarily occurs for middle class couples by middle class clinicians. This conceptual/clinical paper advocates for sex therapy approaches that better meet the needs of individuals and couples within a broader socioeconomic range. Every couple, regardless of socio-economic status, deserves first class sex therapy that helps establish a satisfying, secure, and sexual relationship from an empathic, respectful clinician who remains sensitive to specific vulnerabilities and challenges related to economic and social class factors...
April 21, 2017: Journal of Sex & Marital Therapy
https://www.readbyqxmd.com/read/28429988/patient-safety-in-nursing-homes-in-sweden-nurses-views-on-safety-and-their-role
#13
Frieda Andersson, Katarina Hjelm
Objective Knowledge about patient safety in nursing homes is limited. The aim of this study was to describe what patient safety means to nurses working in nursing homes for the elderly and how these nurses address patient safety. Method Qualitative study of semi-structured interviews with 15 nurses aged 27-62 years. Qualitative content analysis was applied. Results Nurses describe the meaning of patient safety in terms of proper care and treatment, and a sense of security. Based on nurses' description of patient safety, several factors were identified as prerequisites to achieve safe health care: competence; clear information transfer between health care organizations; continuity of care and appropriate environment...
January 1, 2017: Journal of Health Services Research & Policy
https://www.readbyqxmd.com/read/28429631/household-food-insecurity-among-people-living-with-hiv-in-sagamu-nigeria-a-preliminary-study
#14
Oluwafolahan O Sholeye, Victor J Animasahun, Albert A Salako, Bankole K Oyewole
BACKGROUND: Household food insecurity has been associated with increased risk of transmission of HIV infection and poor treatment outcomes. This study therefore determined the prevalence of household food insecurity and its associated factors among people living with HIV in Sagamu, Ogun State, Nigeria. METHODS: A cross-sectional descriptive study was carried out among 244 adult clients accessing care and support at the teaching hospital in Sagamu, Nigeria, selected via systematic sampling...
January 1, 2017: Nutrition and Health
https://www.readbyqxmd.com/read/28429049/dysregulation-of-haematopoietic-stem-cell-regulatory-programs-in-acute-myeloid-leukaemia
#15
REVIEW
Silvia Basilico, Berthold Göttgens
Haematopoietic stem cells (HSC) are situated at the apex of the haematopoietic differentiation hierarchy, ensuring the life-long supply of mature haematopoietic cells and forming a reservoir to replenish the haematopoietic system in case of emergency such as acute blood loss. To maintain a balanced production of all mature lineages and at the same time secure a stem cell reservoir, intricate regulatory programs have evolved to control multi-lineage differentiation and self-renewal in haematopoietic stem and progenitor cells (HSPCs)...
April 20, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28428872/are-whooping-cranes-destined-for-extinction-climate-change-imperils-recruitment-and-population-growth
#16
Matthew J Butler, Kristine L Metzger, Grant M Harris
Identifying climatic drivers of an animal population's vital rates and locating where they operate steers conservation efforts to optimize species recovery. The population growth of endangered whooping cranes (Grus americana) hinges on juvenile recruitment. Therefore, we identify climatic drivers (solar activity [sunspots] and weather) of whooping crane recruitment throughout the species' life cycle (breeding, migration, wintering). Our method uses a repeated cross-validated absolute shrinkage and selection operator approach to identify drivers of recruitment...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28428168/testing-the-feasibility-and-usability-of-a-novel-smartphone-based-self-management-support-system-for-dialysis-patients-a-pilot-study
#17
Aki Hayashi, Satoko Yamaguchi, Kayo Waki, Katsuhito Fujiu, Norio Hanafusa, Takahiro Nishi, Hyoe Tomita, Haruka Kobayashi, Hideo Fujita, Takashi Kadowaki, Masaomi Nangaku, Kazuhiko Ohe
BACKGROUND: Diet and fluid restrictions that need continuous self-management are among the most difficult aspects of dialysis treatment. Smartphone applications may be useful for supporting self-management. OBJECTIVE: Our objective is to investigate the feasibility and usability of a novel smartphone-based self-management support system for dialysis patients. METHODS: We developed the Self-Management and Recording System for Dialysis (SMART-D), which supports self-monitoring of three mortality-related factors that can be modified by lifestyle: interdialytic weight gain and predialysis serum potassium and phosphorus concentrations...
April 20, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28427878/localized-degradation-of-foreign-dna-strands-in-cells-only-excising-the-first-nucleotide-of-5-region
#18
Hui Li, Wei Shen, Michael Hon-Wah Lam, Haojun Liang
Intracellular delivery of foreign DNA probes sharply increases the efficiency of various biodetection protocols. Spherical nucleic acid (SNA) conjugate is a new type of probe that consists of a dense oligonucleotide shell attached typically to a gold nanoparticle core. They are widely used as novel labels for in vitro biodetection and intracellular assay. However, the degradation of foreign DNA still remains a challenge that can cause significant signal leakage (false positive signal). Hence, the site and behavior of intracellular degradation need to be investigated...
April 17, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28427845/development-of-a-micro-neutralization-assay-for-ebolaviruses-using-a-replication-competent-vesicular-stomatitis-hybrid-virus-and-a-quantitative-pcr-readout
#19
Stella S Lee, Kathryn Phy, Keith Peden, Li Sheng-Fowler
Development of vaccines against highly pathogenic viruses that could also be used as agents of bioterrorism is both a public health issue and a national security priority. Methods that can quantify neutralizing antibodies will likely be crucial in demonstrating vaccine effectiveness, as most licensed viral vaccines are effective due to their capacity to elicit neutralizing antibodies. Assays to determine whether antibodies are neutralizing traditionally involve infectious virus, and the assay most commonly used is the plaque-reduction neutralization test (PRNT)...
April 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28427286/incomes-and-outcomes-social-security-disability-benefits-in-first-episode-psychosis
#20
Robert A Rosenheck, Sue E Estroff, Kyaw Sint, Haiqun Lin, Kim T Mueser, Delbert G Robinson, Nina R Schooler, Patricia Marcy, John M Kane
OBJECTIVE: Social Security Administration (SSA) disability benefits are an important source of income for people with psychoses and confer eligibility for health insurance. The authors examined the impact of coordinated specialty care on receipt of such benefits in first-episode psychosis, along with the correlates and consequences of receiving them. METHOD: The Recovery After an Initial Schizophrenia Episode-Early Treatment Program (RAISE-ETP) study, a 34-site cluster-randomized trial, compared NAVIGATE, a coordinated specialty care program, to usual community care over 2 years...
April 21, 2017: American Journal of Psychiatry
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