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https://www.readbyqxmd.com/read/28508300/the-symbolic-nature-of-trust-in-heterosexual-adolescent-romantic-relationships
#1
Jerika C Norona, Deborah P Welsh, Spencer B Olmstead, Chloe F Bliton
Trust contributes to young people's capacity for sustaining current and future successful relationships. To date, research has yet to examine the meaning of trust in early dating relationships and reasons for its deterioration. The present study focused on video-recorded conversations about trust between 34 heterosexual adolescent couples in dating relationships living in the U.S. Transcripts from these conversations were qualitatively analyzed using thematic analysis to identify adolescents' meanings of trust and reasons they provided for a lack of trust in their romantic partners...
May 15, 2017: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/28504934/vision-based-surgical-field-defogging
#2
Xiongbiao Luo, A McLeod, Stephen Pautler, Christopher Schlachta, Terry Peters
Fogged surgical field visualization that is a common and potentially harmful problem can lead to inappropriate device use and incorrectly targeted tissue and increase surgical risks in endoscopic surgery. This work aims to remove fog or smoke on endoscopic video sequences to augment and maintain a direct and clear visualization of the operating field. A new visibilitydriven fusion defogging framework is proposed for surgical endoscopic video processing. This framework first recovers the visibility and enhances the contrast of hazy images...
May 11, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28475887/don-t-stop-re-healin-cancer-as-an-ongoing-stem-cell-affair
#3
Samuel P Rowbotham, Carla F Kim
Tumors have long been suspected of hijacking stem cell mechanisms used for tissue maintenance and repair. Ge et al. now show that skin tumors exhibit merged chromatin profiles from distinct stem cell lineages. This "lineage infidelity" recreates a state akin to transient wound repair that persists to maintain uncontrolled growth.
May 4, 2017: Cell
https://www.readbyqxmd.com/read/28472504/exploring-background-mutational-processes-to-decipher-cancer-genetic-heterogeneity
#4
Alexander Goncearenco, Stephanie L Rager, Minghui Li, Qing-Xiang Sang, Igor B Rogozin, Anna R Panchenko
Much remains unknown about the progression and heterogeneity of mutational processes in different cancers and their diagnostic and clinical potential. A growing body of evidence supports mutation rate dependence on the local DNA sequence context for various types of mutations. We propose several tools for the analysis of cancer context-dependent mutations, which are implemented in an online computational framework MutaGene. The framework explores DNA context-dependent mutational patterns and underlying somatic cancer mutagenesis, analyzes mutational profiles of cancer samples, identifies the combinations of underlying mutagenic processes including those related to infidelity of DNA replication and repair machinery, and various other endogenous and exogenous mutagenic factors...
May 4, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28464318/examination-of-phox2b-in-adult-neuroendocrine-neoplasms-reveals-relatively-frequent-expression-in-pheochromocytomas-and-paragangliomas
#5
John P Lee, Yin P Hung, Thomas M O'Dorisio, James R Howe, Jason L Hornick, Andrew M Bellizzi
AIMS: Paired-like homeobox 2b (PHOX2B) is a transcription factor with expression outside of the central nervous system restricted to neurons and chromaffin cells of the autonomic nervous system. Germline mutations cause congenital central hypoventilation syndrome and predispose to neuroblastoma and Hirschsprung disease. Among pediatric small round cell tumors, PHOX2B is neuroblastoma-specific. Two studies of adult autonomic nervous system tumors (n=62) produced conflicting results (all tumors stained in one; expression was restricted to 40% of paragangliomas in the other)...
May 2, 2017: Histopathology
https://www.readbyqxmd.com/read/28462485/investigations-of-a-reproductive-processing-advantage-in-memory
#6
Cory J Derringer, John E Scofield, Bogdan Kostic
Previous work has shown that processing words for their survival value improves memory. If this survival processing effect reflects an evolutionary adaptation in memory, processing words for their reproductive value should also improve memory. Across three experiments, participants rated words for their relevance in reproductive scenarios. In Experiment 1, participants rated adjectives (traits) for their relevance in finding a mate, evaluating a coworker, or in terms of their pleasantness. Mate processing produced better memory than pleasantness ratings, but not coworker processing...
May 1, 2017: Memory & Cognition
https://www.readbyqxmd.com/read/28439148/do-you-have-anything-to-hide-infidelity-related-behaviors-on-social-media-sites-and-marital-satisfaction
#7
Brandon T McDaniel, Michelle Drouin, Jaclyn D Cravens
Social media provides one route to behaviors that may be potentially harmful to romantic relationships, such as communicating with alternative partners, which can sometimes create relationship conflict, breakups, or divorce. Limited empirical evidence exists concerning social media infidelity-related behaviors and marital relationships. This study examined whether married/cohabiting individuals are using social media sites to engage in online infidelity-related behaviors and to what extent this related to relationship satisfaction, ambivalence, and relational attachment characteristics as reported by 338 married/cohabiting individuals from 176 families...
January 2017: Computers in Human Behavior
https://www.readbyqxmd.com/read/28434617/stem-cell-lineage-infidelity-drives-wound-repair-and-cancer
#8
Yejing Ge, Nicholas C Gomez, Rene C Adam, Maria Nikolova, Hanseul Yang, Akanksha Verma, Catherine Pei-Ju Lu, Lisa Polak, Shaopeng Yuan, Olivier Elemento, Elaine Fuchs
Tissue stem cells contribute to tissue regeneration and wound repair through cellular programs that can be hijacked by cancer cells. Here, we investigate such a phenomenon in skin, where during homeostasis, stem cells of the epidermis and hair follicle fuel their respective tissues. We find that breakdown of stem cell lineage confinement-granting privileges associated with both fates-is not only hallmark but also functional in cancer development. We show that lineage plasticity is critical in wound repair, where it operates transiently to redirect fates...
May 4, 2017: Cell
https://www.readbyqxmd.com/read/28401945/a-study-on-fast-gates-for-large-scale-quantum-simulation-with-trapped-ions
#9
Richard L Taylor, Christopher D B Bentley, Julen S Pedernales, Lucas Lamata, Enrique Solano, André R R Carvalho, Joseph J Hope
Large-scale digital quantum simulations require thousands of fundamental entangling gates to construct the simulated dynamics. Despite success in a variety of small-scale simulations, quantum information processing platforms have hitherto failed to demonstrate the combination of precise control and scalability required to systematically outmatch classical simulators. We analyse how fast gates could enable trapped-ion quantum processors to achieve the requisite scalability to outperform classical computers without error correction...
April 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28375737/fifty-states-of-self-control-a-u-s-statewide-examination-of-the-initiation-and-inhibition-dimensions-of-self-regulation
#10
Matthew Findley, Ryan Brown
Individual differences in self-control have been shown to reflect two underlying dimensions: initiation and inhibition. We examined the possibility that degrees of self-control might likewise be modeled at a broader social level, similar to other socio-cultural differences that operate at an individual level (e.g., collectivism). To test this notion, we used a variety of mundane behaviors measured at the level of U.S. states to create inhibitory and initiatory indices of self-control at a collective level. We show that statewide levels of initiatory and inhibitory self-control, despite being correlated with one another, exhibit unique patterns of association with a wide range of outcomes, including homicide, suicide, home foreclosures, divorce, and infidelity...
February 26, 2017: Journal of Social Psychology
https://www.readbyqxmd.com/read/28287929/beliefs-about-sexual-activity-during-pregnancy-a-systematic-review-of-the-literature
#11
Meireluci Costa Ribeiro, Marco de Tubino Scanavino, Maria Luiza Sant'Ana do Amaral, Ana Lúcia de Moraes Horta, Maria Regina Torloni
The aim of this review is to present the beliefs related to sexual activity during pregnancy. We identified 13 studies (3122 participants). The main positive beliefs about sex in pregnancy were that it makes labor easier, promotes marital harmony, prevents infidelity and improves fetal well-being. Negative beliefs were more frequent; they were that sex could harm the unborn child (cause injuries, miscarriage or fetal infection) and endanger the pregnancy or maternal health (cause membrane rupture, bleeding, preterm labor and maternal infection)...
March 13, 2017: Journal of Sex & Marital Therapy
https://www.readbyqxmd.com/read/28146328/many-places-called-home-the-adaptive-value-of-seasonal-adjustments-in-range-fidelity
#12
Alexandre Lafontaine, Pierre Drapeau, Daniel Fortin, Martin-Hugues St-Laurent
The vast majority of animal species display range fidelity, a space-use behaviour enhancing familiarity with local habitat features. While the fitness benefits of this behaviour have been demonstrated in a variety of taxa, some species or populations rather display infidelity, displacing their home range over time. Others, such as many ungulate species, show seasonal adjustments in their range fidelity to accommodate changes in the dominance of limiting factors or in the distribution of resources. Few empirical studies have explored the adaptive value of seasonal adjustments in range fidelity...
February 1, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28134494/controlling-behaviours-and-technology-facilitated-abuse-perpetrated-by-men-receiving-substance-use-treatment-in-england-and-brazil-prevalence-and-risk-factors
#13
Gail Gilchrist, Martha Canfield, Polly Radcliffe, Ana Flavia Pires Lucas D'Oliveira
INTRODUCTION AND AIMS: Controlling behaviours are highly prevalent forms of non-physical intimate partner violence (IPV). The prevalence of perpetrating controlling behaviours and technology-facilitated abuse (TFA) was compared by men receiving substance use treatment in England (n = 223) and Brazil (n = 280). Factors associated with perpetrating these behaviours towards their current/most recent partner and their association with other types of IPV were explored. DESIGN AND METHODS: Secondary analysis from two cross-sectional studies was performed...
January 2017: Drug and Alcohol Review
https://www.readbyqxmd.com/read/28114968/motivators-of-couple-hiv-counseling-and-testing-chct-uptake-in-a-rural-setting-in-uganda
#14
Victoria Nannozi, Eric Wobudeya, Nicholas Matsiko, Jacqueline Gahagan
BACKGROUND: Couple HIV Counseling and Testing (CHCT) is one of the key preventive strategies used to reduce the spread of HIV. In Uganda, HIV prevalence among married/living together is 7.2% among women and 7.6% among men. CHCT can help ease disclosure of HIV-positive status, which in turn may help increase opportunities to get social support and reduce new infections. The uptake of CHCT among attendees of health facilities in rural Uganda is as high as 34%. The purpose of this study was to explore the motivators of CHCT uptake in Mukono district, a rural setting in Uganda...
January 23, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28088180/nuclear-envelope-structural-proteins-facilitate-nuclear-shape-changes-accompanying-embryonic-differentiation-and-fidelity-of-gene-expression
#15
Elizabeth R Smith, Yue Meng, Robert Moore, Jeffrey D Tse, Arn G Xu, Xiang-Xi Xu
BACKGROUND: Nuclear size and shape are specific to a cell type, function, and location, and can serve as indicators of disease and development. We previously found that lamin A/C and associated nuclear envelope structural proteins were upregulated when murine embryonic stem (ES) cells differentiated to primitive endoderm cells. Here we further investigated the morphological changes of nuclei that accompany this differentiation. RESULTS: The nuclei of undifferentiated wild type cells were found shaped as flattened, irregular ovals, whereas nuclei of Gata4-positive endoderm cells were more spherical, less flattened, and with a slightly reduced volume...
January 14, 2017: BMC Cell Biology
https://www.readbyqxmd.com/read/28054799/the-risk-for-marital-infidelity-across-a-year-long-deployment
#16
Christina Balderrama-Durbin, Kimberley Stanton, Douglas K Snyder, Jeffrey A Cigrang, G Wayne Talcott, Amy M Smith Slep, Richard E Heyman, Daniel G Cassidy
Military deployment can create significant relationship strain. Although most couples navigate the challenges of deployment successfully, this period may render some couples more vulnerable to adverse relationship outcomes such as infidelity due to a convergence of factors including geographic separation and reduced emotional and physical intimacy. Despite anecdotal reports of increased rates of infidelity during deployment, empirical findings are lacking. This study used a prospective design to examine the prevalence and risk factors of infidelity across the deployment cycle including a year-long deployment to Iraq...
January 5, 2017: Journal of Family Psychology: JFP
https://www.readbyqxmd.com/read/28008083/infidelity-in-the-outback-climate-signal-recorded-in-%C3%AE-18o-of-leaf-but-not-branch-cellulose-of-eucalypts-across-an-australian-aridity-gradient
#17
Alexander W Cheesman, Lucas A Cernusak
The isotopic composition of leaf water in terrestrial plants is highly dependent upon a plant's environment. This isotopic signature can become integrated into organic molecules, allowing the isotopic composition of biomarkers such as cellulose to be used as sensitive paleo and climatic proxies. However, the mechanisms by which cellulose isotopic composition reflect environmental conditions are complex, and may vary between leaf and woody tissues. To date few empirical tests have been made on the relative roles of leaf-water enrichment and source water on the isotopic composition of leaf and wood cellulose within the same plant...
December 21, 2016: Tree Physiology
https://www.readbyqxmd.com/read/27997823/living-in-cin-mitotic-infidelity-and-its-consequences-for-tumor-promotion-and-suppression
#18
REVIEW
Laura C Funk, Lauren M Zasadil, Beth A Weaver
Errors in chromosome segregation during mitosis have been recognized as a hallmark of tumor cells since the late 1800s, resulting in the long-standing hypothesis that mitotic abnormalities drive tumorigenesis. Recent work has shown that mitotic defects can promote tumors, suppress them, or do neither, depending on the rate of chromosome missegregation. Here we discuss the causes of chromosome missegregation, their effects on tumor initiation and progression, and the evidence that increasing the rate of chromosome missegregation may be an effective chemotherapeutic strategy...
December 19, 2016: Developmental Cell
https://www.readbyqxmd.com/read/27911084/caught-in-a-bad-romance-reconsidering-the-negative-association-between-sociosexuality-and-relationship-functioning
#19
David Rodrigues, Diniz Lopes, C Veronica Smith
Sociosexuality refers to individual differences in interest and willingness to engage in sexual activity without an emotional connection. Unrestricted sociosexuality is associated with a greater likelihood of infidelity and with poorer relationship quality. However, previous research has failed to examine relationship-specific characteristics that may moderate these findings. Two studies of romantically involved adults examined whether relationship commitment and different relationship agreement types moderate the associations between unrestricted sociosexuality and infidelity...
December 2, 2016: Journal of Sex Research
https://www.readbyqxmd.com/read/27899414/sentinel-case-of-richter-transformation-from-chronic-lymphocytic-leukaemia-small-lymphocytic-lymphoma-to-cd3-diffuse-large-b-cell-lymphoma
#20
Ali Ismail, Jawed A Mallick, Dahui Qin, Mohammad O Hussaini
AIM: To report the first case of a Richter syndrome where small lymphocytic lymphoma (SLL) progressed to a CD3+ diffuse large B-cell lymphoma (DLBCL). METHODS: Macrodissection of small and large cell lymphomatous components was performed. This was followed by flow cytometric analysis along with molecular B-cell immunoglobulin (heavy and light chains) and T-cell receptor (γ and β chains) gene rearrangement studies to investigate a clonal relationship between the components...
November 29, 2016: Journal of Clinical Pathology
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