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Phenomenology

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https://www.readbyqxmd.com/read/28737797/cation-distribution-dependent-magnetic-properties-in-cocr2-xfexo4-x-0-1-to-0-5-exafs-m%C3%A3-ssbauer-and-magnetic-measurements
#1
D Kumar, A Banerjee, A Mahmoud, Chandana Rath
In this report, we have examined the evolution of the structure and rich magnetic transitions such as a paramagnetic to ferrimagnetic phase transition at the Curie temperature (TC), spiral ordering temperature (TS) and lock-in temperature (TL) observed in the CoCr2O4 spinel multiferroic after substituting Fe. The crystal structure, microstructure and cation distribution among the tetrahedral (A) and octahedral (B) sites in the spinel lattice are characterised by X-ray diffraction, transmission electron microscopy, Extended X-ray Absorption Fine Structure (EXAFS) and Mössbauer spectroscopy...
July 24, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28737755/biphasic-growth-dynamics-control-cell-division-in-caulobacter-crescentus
#2
Shiladitya Banerjee, Klevin Lo, Matthew K Daddysman, Alan Selewa, Thomas Kuntz, Aaron R Dinner, Norbert F Scherer
Cell size is specific to each species and impacts cell function. Various phenomenological models for cell size regulation have been proposed, but recent work in bacteria has suggested an 'adder' model, in which a cell increments its size by a constant amount between each division. However, the coupling between cell size, shape and constriction remains poorly understood. Here, we investigate size control and the cell cycle dependence of bacterial growth using multigenerational cell growth and shape data for single Caulobacter crescentus cells...
July 24, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/28737228/promising-thermoelectric-bulk-materials-with-2d-structures
#3
REVIEW
Yiming Zhou, Li-Dong Zhao
Given that more than two thirds of all energy is lost, mostly as waste heat, in utilization processes worldwide, thermoelectric materials, which can directly convert waste heat to electricity, provide an alternative option for optimizing energy utilization processes. After the prediction that superlattices may show high thermoelectric performance, various methods based on quantum effects and superlattice theory have been adopted to analyze bulk materials, leading to the rapid development of thermoelectric materials...
July 24, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28733153/unsettling-moods-in-rural-midwifery-practice
#4
Susan Crowther, Liz Smythe, Deb Spence
BACKGROUND: Rural midwifery and maternity care is vulnerable due to geographical isolation, staffing recruitment and retention. Highlighting the concerns within rural midwifery is important for safe sustainable service delivery. METHOD: Hermeneutic phenomenological study undertaken in New Zealand (NZ). 13 participants were recruited in rural regions through snowball technique and interviewed. Transcribed interview data was interpretively analysed. Findings are discussed through the use of philosophical notions and related published literature...
July 18, 2017: Women and Birth: Journal of the Australian College of Midwives
https://www.readbyqxmd.com/read/28732498/a-qualitative-study-on-the-intersectional-social-determinants-for-indigenous-people-who-become-infected-with-hiv-in-their-youth
#5
Roberta L Woodgate, Melanie Zurba, Pauline Tennent, Carla Cochrane, Mike Payne, Javier Mignone
BACKGROUND: Indigenous young people are currently highly overrepresented in the HIV epidemic in Canada, especially in the Prairie Provinces, such as Manitoba. Understanding HIV-vulnerability in Indigenous peoples must begin with understanding that social determinants are intersectional and linked to the historical legacy of European colonization. In this paper findings that detail the influence of the intersectional social determinants on Indigenous people who become infected with HIV in their youth are presented...
July 21, 2017: International Journal for Equity in Health
https://www.readbyqxmd.com/read/28731768/self-organized-velocity-pulses-of-dense-colloidal-suspensions-in-microchannel-flow
#6
Philipp Kanehl, Holger Stark
We present a numerical study of dense colloidal suspensions in a pressure-driven microchannel flow in two dimensions. The colloids are modeled as elastic and frictional spheres suspended in a Newtonian fluid, which we simulate using the method of multiparticle collision dynamics. The model reproduces periodic velocity and density pulse trains, traveling upstream in the microchannel, which are found in experiments conducted by Isa et al. [Phys. Rev. Lett. 102, 058302 (2009)PRLTAO0031-900710.1103/PhysRevLett...
July 7, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28730875/the-influence-of-fatalistic-beliefs-on-health-beliefs-among-diabetics-in-khartoum-sudan-a-comparison-between-coptic-christians-and-sunni-muslims
#7
Dana Hag Hamed, Marguerite Daniel
Although there are many studies assessing the influence of religious beliefs on health they do not agree on whether the impact is positive or negative. More so, there is no consensus in the available literature on the definition of fatalism and what it means to individuals. In this phenomenological study we attempt to define what religious fatalism means to people living with diabetes in Khartoum, and how it affects their health beliefs, and how those beliefs affect their sense of coherence and generalized resistance resources, since salutogenesis is the guiding theory in this study...
July 1, 2017: Global Health Promotion
https://www.readbyqxmd.com/read/28730199/the-amorphous-state-first-principles-derivation-of-the-gordon-taylor-equation-for-direct-prediction-of-the-glass-transition-temperature-of-mixtures-estimation-of-the-crossover-temperature-of-fragile-glass-formers-physical-basis-of-the-rule-of-2-3
#8
Peter J Skrdla, Philip D Floyd, Philip C Dell'Orco
Predicting the glass transition temperature (Tg) of mixtures has applications that span across industries and scientific disciplines. By plotting experimentally determined Tg values as a function of the glass composition, one can usually apply the Gordon-Taylor (G-T) equation to determine the slope, k, which subsequently can be used in Tg predictions. Traditionally viewed as a phenomenological/empirical model, this work proposes a physical basis for the G-T equation. The proposed equations allow for the calculation of k directly and, hence, they determine/predict the Tg values of mixtures algebraically...
July 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28730189/solvent-gated-thin-film-transistors
#9
Kyriaki Manoli, Preethi Seshadri, Mandeep Singh, Cinzia Di Franco, Angelo Nacci, Gerardo Palazzo, Luisa Torsi
Electrical double layer (EDL) thin film transistors (TFTs) are an interesting class of transistors that use an electrolyte as the gating medium. Recently it has been demonstrated that pure organic solvents can also be used as gating media for TFTs without the addition of exogenous electrolytes. Here we present a systematic study of the performances of TFTs based on two different semiconductors (P3HT and ZnO) gated through nine different solvents either pure or loaded with NaCl. The nature of the solvent impacts the transfer characteristics of the TFT through a change in the gating capacitance while the threshold voltage remains unaffected...
July 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28728790/a-mechanistic-damage-model-for-ligaments
#10
Jeff M Barrett, Jack P Callaghan
PURPOSE: The accuracy of biomechanical models is predicated on the realism by which they represent their biomechanical tissues. Unfortunately, most models use phenomenological ligament models that neglect the behaviour in the failure region. Therefore, the purpose of this investigation was to test whether a mechanistic model of ligamentous tissue portrays behaviour representative of actual ligament failure tests. MODEL: The model tracks the time-evolution of a population of collagen fibres in a theoretical ligament...
July 11, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28728529/islamic-influence-on-hiv-risk-and-protection-among-central-asian-male-migrant-workers-in-kazakhstan
#11
Stacey A Shaw, Tara McCrimmon, Gaukhar Mergenova, Alma Sultangaliyeva, Nabila El-Bassel
HIV incidence is increasing in Central Asia, where migrant workers experience risks for acquiring sexually transmitted HIV. As a social and structural factor that may influence perceptions and behavior, we examine how Islam shapes HIV risk and protection. Phenomenological qualitative interviews examine religion and contexts of HIV risk among 48 male Central Asian migrant workers residing in Almaty, Kazakhstan. Men described nonvaginal sex, alcohol use, premarital sex, and extramarital sex as forbidden or frowned upon...
August 2017: Qualitative Health Research
https://www.readbyqxmd.com/read/28726904/vesicle-aggregates-as-a-model-for-primitive-cellular-assemblies
#12
Tereza Pereira de Souza, Guilherme Volpe Bossa, Pasquale Stano, Frank Steiniger, Sylvio May, Pier Luigi Luisi, Alfred Fahr
Primitive cell models help to understand the role that compartmentalization plays in origin of life scenarios. Here we present a combined experimental and modeling approach towards the construction of simple model systems for primitive cellular assemblies. Charged lipid vesicles aggregate in the presence of oppositely charged biopolymers, such as nucleic acids or polypeptides. Based on zeta potential measurements, dynamic light scattering and cryo-transmission electron-microscopy, we have characterized the behavior of empty and ferritin-filled large unilamellar POPC vesicles, doped with different amounts of cationic (DDAB, CTAB) and anionic (sodium oleate) surfactants, and their aggregation upon the addition of anionic (tRNA, poly-l-glutamic acid) and cationic (poly-l-arginine) biopolymers, respectively...
July 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28726591/adolescents-trajectory-through-peer-loss-after-a-road-traffic-accident
#13
Danai Papadatou, T Bellali, K Tselepi, I Giannopoulou
This mixed method study investigated the short and long term effects of peer loss on eight adolescents after a fatal school bus accident. Phenomenological analysis of their retrospective narratives revealed three patterns (living in despair, collecting my pieces, remembering and moving on). Quantitative findings indicate progressive decrease in post traumatic stress symptoms severity across time; increase in positive changes in perceptions of self, others, and life between 18 and 34 months; and stable continuing bond with the deceased peers...
July 20, 2017: Death Studies
https://www.readbyqxmd.com/read/28726581/phenomenological-modeling-of-reactive-dye-adsorption-onto-fish-scales-surface-in-the-presence-of-electrolyte-and-surfactant-mixtures
#14
C V Neves, F B Scheufele, A P Nardino, M G A Vieira, M G C da Silva, A N Módenes, C E Borba
The aim of this work was an experimental and theoretical investigation of the influence of electrolyte (NaCl) and surfactant (SP), as textile auxiliary agents (TAAs), on the removal of reactive blue 5G dye (RB5G) by applying untreated fish scales (FS) in batch system. For this, kinetic and equilibrium studies were performed aiming the comprehension of the mass transfer mechanisms through a phenomenological modeling. The biosorbent was texturally characterized, not only to investigate the adsorbent's characteristics but especially to support the definition of the assumptions of the models...
July 20, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28726342/social-workers-perceptions-of-barriers-to-interpersonal-therapy-implementation-for-treating-postpartum-depression-in-a-primary-care-setting-in-israel
#15
Rena Bina, Adi Barak, Barbara Posmontier, Saralee Glasser, Tali Cinamon
Research on evidence-based practice (EBP) implementation in social work often neglects to include evaluation of application barriers. This qualitative study examined social workers' perspectives of provider- and organisational-related barriers to implementing a brief eight-session interpersonal therapy (IPT) intervention, a time-limited EBP that addresses reducing depressive symptoms and improving interpersonal functioning. Implementation took place in a primary care setting in Israel and was aimed at treating women who have postpartum depression (PPD) symptoms...
July 20, 2017: Health & Social Care in the Community
https://www.readbyqxmd.com/read/28725848/exploring-inpatients-experiences-of-healing-and-healing-spaces-a-mixed-methods-study
#16
Lorissa MacAllister, Dawn Bellanti, Bonnie R Sakallaris
In order to understand a patient's healing experience it is essential to understand the elements that they, the patient, believes contributed to their healing. Previous research has focused on symptom reducers or contributors through environment such as stress. A person's experience of healing happens over time not instantaneous. Therefore, in this study, the interviews with patients happened after forty-eight hours of hospitalization. This mixed methods study describes the experiences of seventeen inpatients from two healthcare systems using a phenomenological approach combined with evidence based design evaluation methods to document the setting...
December 2016: Journal of patient experience
https://www.readbyqxmd.com/read/28724582/pretreatment-seizure-semiology-in-childhood-absence-epilepsy
#17
Sudha Kilaru Kessler, Shlomo Shinnar, Avital Cnaan, Dennis Dlugos, Joan Conry, Deborah G Hirtz, Fengming Hu, Chunyan Liu, Eli M Mizrahi, Solomon L Moshé, Peggy Clark, Tracy A Glauser
OBJECTIVE: To determine seizure semiology in children with newly diagnosed childhood absence epilepsy and to evaluate associations with short-term treatment outcomes. METHODS: For participants enrolled in a multicenter, randomized, double-blind, comparative-effectiveness trial, semiologic features of pretreatment seizures were analyzed as predictors of treatment outcome at the week 16 to 20 visit. RESULTS: Video of 1,932 electrographic absence seizures from 416 participants was evaluated...
July 19, 2017: Neurology
https://www.readbyqxmd.com/read/28723249/experiences-of-individuals-with-visual-impairments-in-integrated-physical-education-a-retrospective-study
#18
Justin A Haegele, Xihe Zhu
PURPOSE: The purpose of this retrospective study was to examine the experiences of adults with visual impairments during school-based integrated physical education (PE). METHOD: An interpretative phenomenological analysis (IPA) research approach was used and 16 adults (ages 21-48 years; 10 women, 6 men) with visual impairments acted as participants for this study. The primary sources of data were semistructured audiotaped telephone interviews and reflective field notes, which were recorded during and immediately following each interview...
July 19, 2017: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/28723128/calorimetric-biosensing-system-for-quantification-of-urinary-creatinine
#19
David Gaddes, William Brian Reeves, Srinivas Tadigadapa
In this work, we demonstrate the quantification of creatinine in human urine samples using a microcalorimetric sensing system. The calorimetric sensor is based on an array of microfabricated Y-cut quartz resonators. The piezoelectric quartz is etched down to a thickness of 10 μm and exhibits a bulk acoustic resonance of 166 MHz. The temperature sensitivity of this high-frequency quartz resonator is 14 600 Hz/K due to the high phenomenological sensitivity of quartz. Most importantly, the quartz sensors and the analyte fluidics are decoupled providing a significantly more robust calorimetric sensing system than directly contacted chip calorimeters...
June 23, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28722827/being-diagnosed-with-cancer-the-experiences-of-patients-with-non-hodgkin-s-lymphoma
#20
Daren Chircop, Josianne Scerri
AIMS AND OBJECTIVES: The aim of this study was to explore the lived experiences of patients on receiving a diagnosis of non-Hodgkin's lymphoma. BACKGROUND: Persons with non-Hodgkin's lymphoma are often diagnosed with cancer when at an advanced stage. This may arise due to a lack of screening programs and delays in help seeking as the symptoms experienced are fairly non-specific in nature. Consequently, receiving an unexpected diagnosis of non-Hodgkin's lymphoma may pose a psychosocial challenge to the individual...
July 19, 2017: Journal of Clinical Nursing
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