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Positive reciprocity

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https://www.readbyqxmd.com/read/28301176/trajectories-on-the-path-to-reciprocity-a-theoretical-framework-for-collaborating-with-socioeconomically-disadvantaged-communities
#1
Maria Minas, Maria Teresa Ribeiro, James P Anglin
The importance of cultivating connection to enhance individual, relational and collective well-being is gaining attention in the current literature on building community. Although these goals are being increasingly considered, the concept of reciprocity has been less prominent than may be warranted in the field of psychology. This article presents a theoretical framework on the dynamics of reciprocity which resulted from grounded theory (GT) research involving 2 complementary studies. The first study involved 22 participants from different socioeconomic backgrounds engaged in "reflecting-team with appreciative audiences" sessions (Madsen, 2007) in Portugal...
March 16, 2017: American Journal of Orthopsychiatry
https://www.readbyqxmd.com/read/28298243/the-gender-gap-in-relation-to-happiness-and-preferences-in-married-couples-after-childbirth-evidence-from-a-field-experiment-in-rural-ghana
#2
Yusuke Kamiya, Bright Akpalu, Emmanuel Mahama, Emmanuel Kwesi Ayipah, Seth Owusu-Agyei, Abraham Hodgson, Akira Shibanuma, Kimiyo Kikuchi, Masamine Jimba
BACKGROUND: How does the gap in preferences between married couples affect their happiness after childbirth? Are couples that share similar preferences happier? In recent years, gender, marriage, and happiness have been considered to be key issues in public health research. Although much research has examined the happiness status of married couples, practically no study has explored the gender gap in relation to happiness and the preferences of married couples after childbirth. Therefore, our study was conducted to assess the association between the preference gap and the happiness status among married couples in the afterbirth period...
March 15, 2017: Journal of Health, Population, and Nutrition
https://www.readbyqxmd.com/read/28295543/lncrna-xist-promotes-pancreatic-cancer-proliferation-through-mir-133a-egfr
#3
Wei Wei, Yu Liu, Yebin Lu, Bo Yang, Ling Tang
According to recent studies, long non-coding RNA X-inactive specific transcript (XIST) is involved in the development and progression of many malignant tumors including pancreatic cancer. We validated the detailed role of XIST in human pancreatic cancer (PC) cell lines and PC tissues so as to determine its exact function and the mechanism by which it affected PC proliferation. In our research, lncRNA-XIST was specifically upregulated in PC tissues and cell lines, and high XIST expression in PC was related to poorer prognosis (larger tumor size, perineural invasion, lymph node micrometastases and shorter overall survival)...
March 11, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28289230/cross-cousin-marriage-among-the-yanomam%C3%A3-shows-evidence-of-parent-offspring-conflict-and-mate-competition-between-brothers
#4
Napoleon A Chagnon, Robert F Lynch, Mary K Shenk, Raymond Hames, Mark V Flinn
Marriage in many traditional societies often concerns the institutionalized exchange of reproductive partners among groups of kin. Such exchanges most often involve cross-cousins-marriage with the child of a parent's opposite-sex sibling-but it is unclear who benefits from these exchanges. Here we analyze the fitness consequences of marrying relatives among the Yanomamö from the Amazon. When individuals marry close kin, we find that (i) both husbands and wives have slightly lower fertility; (ii) offspring suffer from inbreeding depression; (iii) parents have more grandchildren; and (iv) siblings, especially brothers, benefit when their opposite-sex siblings marry relatives but not when their same-sex siblings do...
March 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28288457/interferon-dependent-induction-of-clr-b-during-mouse-cytomegalovirus-infection-protects-bystander-cells-from-natural-killer-cells-via-nkr-p1b-mediated-inhibition
#5
Christina L Kirkham, Oscar A Aguilar, Tao Yu, Miho Tanaka, Aruz Mesci, Kuan-Lun Chu, Jason H Fine, Karen L Mossman, Rod Bremner, David S J Allan, James R Carlyle
Natural killer (NK) cells are innate lymphocytes that aid in self-nonself discrimination by recognizing cells undergoing pathological alterations. The NKR-P1B inhibitory receptor recognizes Clr-b, a self-encoded marker of cell health downregulated during viral infection. Here, we show that Clr-b loss during mouse cytomegalovirus (MCMV) infection is predicated by a loss of Clr-b (Clec2d) promoter activity and nascent transcripts, driven in part by MCMV ie3 (M122) activity. In contrast, uninfected bystander cells near MCMV-infected fibroblasts reciprocally upregulate Clr-b expression due to paracrine type-I interferon (IFN) signaling...
March 14, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/28284190/notifiable-condition-reporting-practices-implications-for-public-health-agency-participation-in-a-health-information-exchange
#6
Debra Revere, Rebecca H Hills, Brian E Dixon, P Joseph Gibson, Shaun J Grannis
BACKGROUND: The future of notifiable condition reporting in the United States is undergoing a transformation with the increasing development of Health Information Exchanges which support electronic data-sharing and -transfer networks and the wider adoption of electronic laboratory reporting. Communicable disease report forms originating in clinics are an important source of surveillance data for public health agencies. However, problems of poor data quality and delayed submission of reports to public health agencies are common...
March 11, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28279524/two-residues-determine-the-product-profile-of-the-class-ii-diterpene-synthases-tps14-and-tps21-of-tripterygium-wilfordii
#7
Nikolaj L Hansen, Jakob N Nissen, Björn Hamberger
The medicinal plant Tripterygium wilfordii (Celastraceae) contains a pair of class II diterpene synthases (diTPS) of specialized labdane-type metabolism that, despite remarkably close homology, form strikingly different products. TwTPS21 catalyzes bicyclization of the linear C20 precursor geranylgeranyl diphosphate to ent-copal-8-ol diphosphate, while TwTPS14 forms kolavenyl diphosphate. To determine the amino acid signature controlling the functional divergence of the homologues, we modeled their structures based on an existing crystal structure of the Arabidopsis ent-copalyl diphosphate synthase, archetypal of diTPSs in general metabolism of gibberellin phytohormones...
March 6, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28279166/effects-of-cold-sensitivity-in-the-extremities-on-circulating-adiponectin-levels-and-metabolic-syndrome-in-women
#8
Ah Yeon Park, Seongwon Cha
BACKGROUND: In adipose tissues, adipokine levels, including adiponectin and leptin, are involved in insulin sensitivity and are reciprocally induced by cold temperature stress. Thermogenic response in the extremities (hands and feet) against cold stress can be negatively related to fat mass accumulation, particularly in the abdomen. However, the relationship between the sensation of cold in the extremities and circulating levels of adipokines is not fully understood. Here, we investigated whether adipokine levels are associated with cold hypersensitivity in the hands and feet (CHHF), independent of body mass, and whether the CHHF is related to metabolic syndrome (MS)...
March 9, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28277985/indoxyl-sulfate-potentiates-endothelial-dysfunction-via-reciprocal-role-for-reactive-oxygen-species-and-rhoa-rock-signaling-in-5-6-nephrectomized-rats
#9
Shuang Chu, Xiaodong Mao, Hengjiang Guo, Li Wang, Zezheng Li, Yang Zhang, Yunman Wang, Hao Wang, Xuemei Zhang, Wen Peng
Accumulative indoxyl sulfate (IS) retained in chronic kidney disease (CKD) can potentiate vascular endothelial dysfunction, and herein, we aim at elucidating the underlying mechanisms from the perspective of possible association between reactive oxygen species (ROS) and RhoA/ROCK pathway. IS-treated nephrectomized rats are administered with antioxidants including NADPH oxidase inhibitor apocynin, SOD analog tempol, and mitochondrion-targeted SOD mimetic mito-TEMPO to scavenge ROS, or ROCK inhibitor fasudil to obstruct RhoA/ROCK pathway...
March 13, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28277696/morning-self-efficacy-predicts-physical-activity-throughout-the-day-in-knee-osteoarthritis
#10
Ruixue Zhaoyang, Lynn M Martire, Martin J Sliwinski
OBJECTIVE: The purpose of this study was to examine the within-day and cross-day prospective effects of knee osteoarthritis (OA) patients' self-efficacy to engage in physical activity despite the pain on their subsequent physical activity assessed objectively in their natural environment. METHOD: Over 22 days, 135 older adults with knee OA reported their morning self-efficacy for being physically active throughout the day using a handheld computer and wore an accelerometer to measure moderate activity and steps...
March 9, 2017: Health Psychology: Official Journal of the Division of Health Psychology, American Psychological Association
https://www.readbyqxmd.com/read/28271235/expression-of-akt1-along-with-akt2-in-granulosa-lutein-cells-of-hyperandrogenic-pcos-patients
#11
Saeid Nekoonam, Mohammad Naji, Maryam Shabani Nashtaei, Keywan Mortezaee, Morteza Koruji, Leili Safdarian, Fardin Amidi
PURPOSE: AKTs have a pivotal role in the granulosa-lutein cell (GC) proliferation and folliculogenesis, and there is a reciprocal feedback between AKT with androgen. Therefore, we aimed to evaluate the role of AKTs in GCs of hyperandrogenic (+HA) PCOS cases. METHOD: There were three groups: control, +HA PCOS and -HA (non-hyperandrogenic) PCOS. All groups were subjected to GnRH antagonist protocol for stimulation of ovulation. Follicular fluid was aspirated from large follicles, and GCs were isolated using cell strainer method...
April 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28261066/ring-attractor-dynamics-emerge-from-a-spiking-model-of-the-entire-protocerebral-bridge
#12
Kyobi S Kakaria, Benjamin L de Bivort
Animal navigation is accomplished by a combination of landmark-following and dead reckoning based on estimates of self motion. Both of these approaches require the encoding of heading information, which can be represented as an allocentric or egocentric azimuthal angle. Recently, Ca(2+) correlates of landmark position and heading direction, in egocentric coordinates, were observed in the ellipsoid body (EB), a ring-shaped processing unit in the fly central complex (CX; Seelig and Jayaraman, 2015). These correlates displayed key dynamics of so-called ring attractors, namely: (1) responsiveness to the position of external stimuli; (2) persistence in the absence of external stimuli; (3) locking onto a single external stimulus when presented with two competitors; (4) stochastically switching between competitors with low probability; and (5) sliding or jumping between positions when an external stimulus moves...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28259242/the-academic-rewards-of-socially-oriented-happiness-interdependent-happiness-promotes-academic-engagement
#13
Jesus Alfonso D Datu, Ronnel B King, Jana Patricia M Valdez
Interdependent happiness has been found to be positively associated with optimal psychological outcomes in collectivist cultures. However, the association between interdependent happiness and key academic outcomes has remained unexplored. The current study examined the association of interdependent happiness with key academic outcomes such as autonomous motivation, engagement, and achievement using both cross-sectional (Study 1) and longitudinal (Study 2) approaches. Study 1 revealed that interdependent happiness positively predicted academic engagement (partly) via autonomous motivation...
April 2017: Journal of School Psychology
https://www.readbyqxmd.com/read/28256783/the-processive-kinetics-of-gene-conversion-in-bacteria
#14
Johan Paulsson, Meriem El Karoui, Monica Lindell, Diarmaid Hughes
Gene conversion, non-reciprocal transfer from one homologous sequence to another, is a major force in evolutionary dynamics, promoting co-evolution in gene families, and maintaining similarities between repeated genes. However, the properties of the transfer - where it initiates, how far it proceeds, and how the resulting conversion tracts are affected by mismatch repair - are not well understood. Here we use the duplicate tuf genes in Salmonella as a quantitatively tractable model system for gene conversion...
March 3, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28247944/ets1-and-ese1-reciprocally-regulate-expression-of-zeb1-zeb2-dependently-on-erk1-2-activity-in-breast-cancer-cells
#15
Nguyen Duy Sinh, Kaori Endo, Keiji Miyazawa, Masao Saitoh
The epithelial-mesenchymal transition (EMT) is a crucial morphological event that occurs during progression of epithelial tumors. We reported previously that levels of the δEF1 family proteins (ZEB1/δEF1 and ZEB2/SIP1), key regulators of the EMT, are positively correlated with EMT phenotypes and aggressiveness of breast cancer. Here, we show that Ets1 induces ZEB expression and activates the ZEB1 promoter, independently of its threonine 38 phosphorylation status. In the basal-like subtype of breast cancer cells, siRNAs targeting Ets1 repressed expression of ZEBs and partially restored their epithelial phenotypes and sensitivity to anti-tumor drugs...
March 1, 2017: Cancer Science
https://www.readbyqxmd.com/read/28246968/do-accuracy-requirements-change-bimanual-and-unimanual-control-processes-similarly
#16
Chaoyi Wang, Jason B Boyle, Boyi Dai, Charles H Shea
Unimanual (left and right limbs) and bimanual (in-phase) reciprocal aiming tasks were tested to determine if the control processes used to perform the unimanual aiming tasks were also present in bimanual aiming tasks. Participants were asked to move a cursor as quickly and accurately as possible between the two targets presented in a Lissajous feedback display. The size of the targets created indexes of difficulty (ID) of 3, 4, 5, and 6 and the position of the targets created bimanual and unimanual conditions...
February 28, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28244960/mentoring-positively-influencing-job-satisfaction-and-retention-of-new-hire-nurse-practitioners
#17
Diane Kostrey Horner
The purpose of study was to determine whether mentoring based on Watson's Caring Model positively influences nurse practitioner (NP) job satisfaction. This nonexperimental mixed-methods study utilized an online survey, administered through Qualtrics containing demographic and mentoring variables. Job satisfaction results were obtained from the Misener Nurse Practitioner Job Satisfaction Scale (MNPJSS). Also, open-ended questions regarding mentoring were reported. There was a 54% response rate in which 37 of the 69 participants responded (n = 37), with statistical significance set at p < ...
January 2017: Plastic Surgical Nursing
https://www.readbyqxmd.com/read/28229938/participation-of-ghrelin-signalling-in-the-reciprocal-regulation-of-hypothalamic-npy-pomc-mediated-appetite-control-in-amphetamine-treated-rats
#18
Ching-Han Yu, Shu-Chen Chu, Pei-Ni Chen, Yih-Shou Hsieh, Dong-Yih Kuo
Hypothalamic neuropeptide Y (NPY) and proopiomelanocortin (POMC) have been documented to participate in amphetamine (AMPH)-induced appetite suppression. This study investigated whether ghrelin signalling is associated with changes in NPY/POMC-mediated appetite control. Rats were given AMPH daily for four days, and changes in food intake, body weight, plasma ghrelin, hypothalamic NPY, melanocortin 3 receptor (MC3R), ghrelin O-acyltransferase (GOAT), acyl ghrelin (AG) and ghrelin receptor (GHSR1a) were examined and compared...
February 14, 2017: Appetite
https://www.readbyqxmd.com/read/28217339/an-unexpected-oxidation-nak5cl2-s2o6-2-revisited
#19
William T A Harrison, M John Plater
The title compound, NaK5Cl2(S2O6)2 [systematic name: sodium penta-potassium dichloride bis-(di-thio-nate)], arose as an unexpected product from an organic synthesis that used di-thio-nite (S2O4(2-)) ions as a reducing agent to destroy excess permanganate ions. Compared to the previous study [Stanley (1953 ▸). Acta Cryst.6, 187-196], the present tetra-gonal structure exhibits a root 2a × root 2a × c super-cell due to subtle changes in the orientations of the di-thio-nate anions. The structure can be visualized as a three-dimensional framework of [001] columns of alternating trans-NaO4Cl2 and KO4Cl2 octa-hedra cross-linked by the di-thio-nate ions with the inter-stices occupied by KO6Cl2 polyhedra to generate a densely packed three-dimensional framework...
February 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28215941/intron-specific-patterns-of-divergence-of-lin-11-regulatory-function-in-the-c-elegans-nervous-system
#20
Siavash Amon, Bhagwati P Gupta
The diversity of neurons in the nervous system is specified by many genes, including those that encode transcription factors (TFs) and play crucial roles in coordinating gene transcription. To understand how the spatiotemporal expression of TF genes is regulated to generate neuronal diversity, we used one member of the LIM-Hox family, lin-11, as a model that is necessary for the differentiation of amphid neurons in the nematode C. elegans and a related species C. briggsae. We characterized transcriptional regulation of lin-11 and uncovered regulatory roles of two of the largest introns, intron 3 and intron 7...
April 1, 2017: Developmental Biology
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