Application of finite-element-methods in food processing

DEFF Research Database (Denmark)

Risum, Jørgen

2004-01-01

Presentation of the possible use of finite-element-methods in food processing. Examples from diffusion studies are given.......Presentation of the possible use of finite-element-methods in food processing. Examples from diffusion studies are given....

Parenting Processes and Aggression: The Role of Self-Control among Turkish Adolescents

Science.gov (United States)

Ozdemir, Yalcin; Vazsonyi, Alexander T.; Cok, Figen

2013-01-01

The present study examined the direct and indirect relationships between parenting processes (parental closeness, parental monitoring, and parental peer approval), low self-control, and aggression. Participants were 546 adolescents aged 14-18 attending state high schools in Turkey. Participants completed a questionnaire that included measures of…

Conceptualizing the key processes of Mindful Parenting and its application to youth mental health.

Science.gov (United States)

Townshend, Kishani

2016-12-01

Youth mental health disorders are rising across the world. Mindful Parenting could be a potential tool to promote youth mental health. The primary distinction between Mindful Parenting programs and other behavioral parenting programs is the focus on emotional literacy and compassion. However, this emerging field has gaps in its theory and evidence. In order to objectively evaluate the impact of Mindful Parenting, it is important to identify how it promotes change. This theoretical paper aims to articulate the key change processes of Mindful Parenting that promote positive outcomes. A literature review was conducted to synthesize the change processes outlined by different authors in the field. Key processes argued to promote Mindful Parenting were aligned with five main categories, namely attention, intention, attitude, attachment and emotion. More specifically the change processes were listening, emotional awareness, emotional regulation, attentional regulation, attunement, attention to variability, intentionality, reperceiving, compassion and non-judgmental acceptance. This preliminary analysis attempted to understand how Mindful Parenting fosters change and transformation. Whilst there are numerous change processes, the essence of Mindful Parenting appears to be the ability to be responsive to a child's needs. © The Royal Australian and New Zealand College of Psychiatrists 2016.

Parenting an overweight or obese child: a process of ambivalence.

Science.gov (United States)

Haugstvedt, Karen Therese Sulheim; Graff-Iversen, Sidsel; Bechensteen, Brit; Hallberg, Ulrika

2011-03-01

Childhood overweight represents a health problem, and research points towards parents as key players. The aim of this study was to deepen the knowledge of how parents of children who are overweight or obese experience their parenthood. Focus group discussions with 17 parents were analysed according to the qualitative method of modified grounded theory. The results expressed the parents' ambivalence between preventing the child's overweight and not negatively affecting the child's self-esteem. The most important issue seemed to be their concern about the child's construction of self-understanding and experiences in interaction with the environment. The parents had become uncertain of their responsibility, priorities and how to act. In conclusion, parenting a child with weight issues could be a process of loving the child the way he/she is while still wanting changes for improved health, resulting in ambivalence. In addition to traditional advice about lifestyle, many parents seem to need counselling assistance with respect to their parental role.

Modelling of the radioactive daughter elements in soil to assess radiation impact due to contaminated irrigation water by parents of 231Pa, 226Ra, 238U, 237Np and 239Pu

International Nuclear Information System (INIS)

Bela Kanyar; Katalin Eged; Tunde Katona; Gerhard Proehl; Ulla Bergstroem; Bengt Hallberg; Shelly Mobbs; Geert Olyslaegers; Theo Zeevaert; Palome Pinedo; Inmaculade Simon

2004-01-01

Radioactive wastes may contain both parent and daughter radionuclides. In some cases the transfer parameters of the daughter radio-elements differ significantly from that of the parent ones and therefore the dose contributions in the different pathways might be important to assess separately. The present work has compared 5 different site specific models by a scenario, using contaminated water for drinking and irrigation. Altogether 5 radionuclides from the investigated 10 ones contained radioactive daughter elements. In general, for long term studies in biosphere the steady-state formulations of processes are adequate to assess the contamination, except the infiltration into the deeper soil and sediment layers. According to the results of the modelling and computer simulations, the following daughters are to be assessed separately from their parents with respect to the radiation impact: for parent 231 Pa the daughter 227 Ac, for parent 226 Ra the daughters 222 Rn, 210 Pb and 210 Po and for parent 237 Np the daughter 233 Pa. The dose contributions of the daughters from parents 238 U and 239 Pu are less significant during the considered 100-10000 years. In case of contamination of irrigation water with 1 Bq x m -3 of the parent radionuclide 231 Pa, more than 90% of the external dose from soil exposure comes from the daughter 227 Ac (annually 15 nSv). By a similar contamination with 226 Ra as a parent radionuclide, 60% of the ingestion dose is due to food contamination with the daughters 210 Pb and 210 Po (approximately 150 nSv x a -1 ). (author)

Analysis of the ATR fuel element swaging process

International Nuclear Information System (INIS)

Richins, W.D.; Miller, G.K.

1995-12-01

This report documents a detailed evaluation of the swaging process used to connect fuel plates to side plates in Advanced Test Reactor (ATR) fuel elements. The swaging is a mechanical process that begins with fitting a fuel plate into grooves in the side plates. Once a fuel plate is positioned, a lip on each of two side plate grooves is pressed into the fuel plate using swaging wheels to form the joints. Each connection must have a specified strength (measured in terms, of a pullout force capacity) to assure that these joints do not fail during reactor operation. The purpose of this study is to analyze the swaging process and associated procedural controls, and to provide recommendations to assure that the manufacturing process produces swaged connections that meet the minimum strength requirement. The current fuel element manufacturer, Babcock and Wilcox (B ampersand W) of Lynchburg, Virginia, follows established procedures that include quality inspections and process controls in swaging these connections. The procedures have been approved by Lockheed Martin Idaho Technologies and are designed to assure repeatability of the process and structural integrity of each joint. Prior to July 1994, ATR fuel elements were placed in the Hydraulic Test Facility (HTF) at the Idaho National Engineering Laboratory (AGNAIL), Test Reactor Area (TRA) for application of Boehmite (an aluminum oxide) film and for checking structural integrity before placement of the elements into the ATR. The results presented in this report demonstrate that the pullout strength of the swaged connections is assured by the current manufacturing process (with several recommended enhancements) without the need for- testing each element in the HTF

A phenomenologic investigation of pediatric residents' experiences being parented and giving parenting advice.

Science.gov (United States)

Bax, A C; Shawler, P M; Blackmon, D L; DeGrace, E W; Wolraich, M L

2016-09-01

Factors surrounding pediatricians' parenting advice and training on parenting during residency have not been well studied. The primary purpose of this study was to examine pediatric residents' self-reported experiences giving parenting advice and explore the relationship between parenting advice given and types of parenting residents received as children. Thirteen OUHSC pediatric residents were individually interviewed to examine experiences being parented and giving parenting advice. Phenomenological methods were used to explicate themes and secondary analyses explored relationships of findings based upon Baumrind's parenting styles (authoritative, authoritarian, permissive). While childhood experiences were not specifically correlated to the parenting advice style of pediatric residents interviewed, virtually all reported relying upon childhood experiences to generate their advice. Those describing authoritative parents reported giving more authoritative advice while others reported more variable advice. Core interview themes related to residents' parenting advice included anxiety about not being a parent, varying advice based on families' needs, and emphasis of positive interactions and consistency. Themes related to how residents were parented included discipline being a learning process for their parents and recalling that their parents always had expectations, yet always loved them. Pediatric residents interviewed reported giving family centered parenting advice with elements of positive interactions and consistency, but interviews highlighted many areas of apprehension residents have around giving parenting advice. Our study suggests that pediatric residents may benefit from more general educational opportunities to develop the content of their parenting advice, including reflecting on any impact from their own upbringing.

Parent-identified barriers to pediatric health care: a process-oriented model.

Science.gov (United States)

Sobo, Elisa J; Seid, Michael; Reyes Gelhard, Leticia

2006-02-01

To further understand barriers to care as experienced by health care consumers, and to demonstrate the importance of conjoining qualitative and quantitative health services research. Transcripts from focus groups conducted in San Diego with English- and Spanish-speaking parents of children with special health care needs. Participants were asked about the barriers to care they had experienced or perceived, and their strategies for overcoming these barriers. Using elementary anthropological discourse analysis techniques, a process-based conceptual model of the parent experience was devised. The analysis revealed a parent-motivated model of barriers to care that enriched our understanding of quantitative findings regarding the population from which the focus group sample was drawn. Parent-identified barriers were grouped into the following six temporally and spatially sequenced categories: necessary skills and prerequisites for gaining access to the system; realizing access once it is gained; front office experiences; interactions with physicians; system arbitrariness and fragmentation; outcomes that affect future interaction with the system. Key to the successful navigation of the system was parents' functional biomedical acculturation; this construct likens the biomedical health services system to a cultural system within which all parents/patients must learn to function competently. Qualitative analysis of focus group data enabled a deeper understanding of barriers to care--one that went beyond the traditional association of marker variables with poor outcomes ("what") to reveal an understanding of the processes by which parents experience the health care system ("how,"why") and by which disparities may arise. Development of such process-oriented models furthers the provision of patient-centered care and the creation of interventions, programs, and curricula to enhance such care. Qualitative discourse analysis, for example using this project's widely applicable

Process to separate transuranic elements from nuclear waste

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Johnson, T.R.; Ackerman, J.P.; Tomczuk, Z.; Fischer, D.F.

1989-03-21

A process is described for removing transuranic elements from a waste chloride electrolytic salt containing transuranic elements in addition to rare earth and other fission product elements so the salt waste may be disposed of more easily and the valuable transuranic elements may be recovered for reuse. The salt is contacted with a cadmium-uranium alloy which selectively extracts the transuranic elements from the salt. The waste salt is generated during the reprocessing of nuclear fuel associated with the Integral Fast Reactor (IFR). 2 figs.

Process to separate transuranic elements from nuclear waste

International Nuclear Information System (INIS)

Johnson, T.R.; Ackerman, J.P.; Tomczuk, Z.; Fischer, D.F.

1989-01-01

A process is described for removing transuranic elements from a waste chloride electrolytic salt containing transuranic elements in addition to rare earth and other fission product elements so the salt waste may be disposed of more easily and the valuable transuranic elements may be recovered for reuse. The salt is contacted with a cadmium-uranium alloy which selectively extracts the transuranic elements from the salt. The waste salt is generated during the reprocessing of nuclear fuel associated with the Integral Fast Reactor (IFR). 2 figs

Measuring parent perceptions of school climate.

Science.gov (United States)

Schueler, Beth E; Capotosto, Lauren; Bahena, Sofía; McIntyre, Joseph; Gehlbach, Hunter

2014-03-01

Parents' attitudes about their children's schools matter. Their views can shape their children's attitudes about school, affect their levels of family-school engagement, and influence their residential and school enrollment decisions. In this article, we describe the development of a survey scale to assess parent perceptions of the climate of their child's school. Our comprehensive scale development process incorporated feedback from academics and potential respondents from the outset of the design process to enhance scale quality. We conducted 3 studies with national samples of parents (n = 385; n = 253; n = 266) to gather evidence of scale score reliability and valid score inferences based on convergent and discriminant validity. Through confirmatory factor analysis, we identified a theoretically grounded factor structure that fit the data well but found no evidence that parental response patterns distinguish between academic and social elements of school climate. Furthermore, we found that parents of younger children, on average, had a more positive perception of the school's climate than did parents of older children. We conclude by discussing how researchers and Pre-K-12 schools and districts can use the scale to aid school improvement efforts. 2014 APA

Mediating factors of coping process in parents of children with type 1 diabetes.

Science.gov (United States)

Oskouie, Fatemeh; Mehrdad, Neda; Ebrahimi, Hossein

2013-05-14

Type 1 diabetes is a lifelong condition for children and their parents, the management for which imposes a vast responsibility. This study explores the mediating factors that affect Iranian parents' coping processes with their children's type 1 diabetes. Research was conducted using the grounded theory method. Participants were selected purposefully, and we continued with theoretical sampling. Constant comparative analysis was used to analyze the data. The mediating factors of the parental coping process with their child's diabetes consist of the child's cooperation, crises and experiences, economic challenges, and parental participation in care. Findings highlight the necessity of well-informed nurses with insightful understanding of the mediating factors in parental coping with juvenile diabetes in order to meet the particular needs of this group.

Elements of Parental Choice: The Evolution of Parental Preferences in Relation to In-Law Selection

Directory of Open Access Journals (Sweden)

Menelaos Apostolou

2007-01-01

Full Text Available With the exception of modern post-industrial societies, parents have primarily been in control of the mating decisions of their offspring. The selection of in-laws has important fitness consequences for parents. It is hypothesized, therefore, that parents have evolved specific preferences that enable them to select in-laws that will maximize their inclusive fitness. To test this hypothesis, data from 297 parents were collected. It is found that parents place differential emphasis on different in-law traits and that their preferences vary according to the sex of the in-law. In addition, parents are in agreement when they are selecting an in-law and their preferences are not contingent upon their sex.

Pyrometallurgical processes for recovery of actinide elements

International Nuclear Information System (INIS)

Battles, J.E.; Laidler, J.J.; McPheeters, C.C.; Miller, W.E.

1994-01-01

A metallic fuel alloy, nominally U-20-Pu-lOZr, is the key element of the Integral Fast Reactor (IFR) fuel cycle. Metallic fuel permits the use of an innovative, simple pyrometallurgical process, known as pyroprocessing, (the subject of this report), which features fused salt electrorefining of the spent fuel. Electrorefining separates the actinide elements from fission products, without producing a separate stream of plutonium. The plutonium-bearing product is contaminated with higher actinides and with a minor amount of rare earth fission products, making it diversion resistant while still suitable as a fuel material in the fast spectrum of the IFR core. The engineering-scale demonstration of this process will be conducted in the refurbished EBR-II Fuel Cycle Facility, which has entered the start-up phase. An additional pyrometallurgical process is under development for extracting transuranic (TRU) elements from Light Water Reactor (LWR) spent fuel in a form suitable for use as a feed to the IFR fuel cycle. Four candidate extraction processes have been investigated and shown to be chemically feasible. The main steps in each process are oxide reduction with calcium or lithium, regeneration of the reductant and recycle of the salt, and separation of the TRU product from the bulk uranium. Two processes, referred to as the lithium and salt transport (calcium reductant) processes, have been selected for engineering-scale demonstration, which is expected to start in late 1993. An integral part of pyroprocessing development is the treatment and packaging of high-level waste materials arising from the operations, along with the qualification of these waste forms for disposal in a geologic repository

Pyrometallurgical processes for recovery of actinide elements

Energy Technology Data Exchange (ETDEWEB)

Battles, J.E.; Laidler, J.J.; McPheeters, C.C.; Miller, W.E.

1994-01-01

A metallic fuel alloy, nominally U-20-Pu-lOZr, is the key element of the Integral Fast Reactor (IFR) fuel cycle. Metallic fuel permits the use of an innovative, simple pyrometallurgical process, known as pyroprocessing, (the subject of this report), which features fused salt electrorefining of the spent fuel. Electrorefining separates the actinide elements from fission products, without producing a separate stream of plutonium. The plutonium-bearing product is contaminated with higher actinides and with a minor amount of rare earth fission products, making it diversion resistant while still suitable as a fuel material in the fast spectrum of the IFR core. The engineering-scale demonstration of this process will be conducted in the refurbished EBR-II Fuel Cycle Facility, which has entered the start-up phase. An additional pyrometallurgical process is under development for extracting transuranic (TRU) elements from Light Water Reactor (LWR) spent fuel in a form suitable for use as a feed to the IFR fuel cycle. Four candidate extraction processes have been investigated and shown to be chemically feasible. The main steps in each process are oxide reduction with calcium or lithium, regeneration of the reductant and recycle of the salt, and separation of the TRU product from the bulk uranium. Two processes, referred to as the lithium and salt transport (calcium reductant) processes, have been selected for engineering-scale demonstration, which is expected to start in late 1993. An integral part of pyroprocessing development is the treatment and packaging of high-level waste materials arising from the operations, along with the qualification of these waste forms for disposal in a geologic repository.

Attachment, mastery, and interdependence: a model of parenting processes.

Science.gov (United States)

Edwards, Martha E

2002-01-01

A democratic nation needs an interdependent citizenry who are not only competent but who also can live together cooperatively with an eye toward what will benefit the whole as well as the self. In this article, the concept of interdependence is adopted as the central goal of parenting. The Parenting Processes Model is then presented, specifying how caregivers help children develop this interdependence. This work draws upon and integrates the work of a number of theoreticians, researchers, and clinicians, with the central focus on the work of John Bowlby, Alfred Adler, and Lev Vygotsky.

Parental experiences with a paediatric palliative care team: A qualitative study.

Science.gov (United States)

Verberne, Lisa M; Schouten-van Meeteren, Antoinette Yn; Bosman, Diederik K; Colenbrander, Derk A; Jagt, Charissa T; Grootenhuis, Martha A; van Delden, Johannes Jm; Kars, Marijke C

2017-12-01

Parents of children with a life-limiting disease have to rely on themselves at home while adequate paediatric palliative care is lacking. In several countries, paediatric palliative care teams are introduced to ensure continuity and quality of care and to support the child and the family. Yet, little is known about how parents experience such multidisciplinary teams. To obtain insight into the support provided by a new paediatric palliative care team from the parents' perspective. An interpretative qualitative interview study using thematic analysis was performed. A total of 47 single or repeated interviews were undertaken with 42 parents of 24 children supported by a multidisciplinary paediatric palliative care team located at a university children's hospital. The children suffered from malignant or non-malignant diseases. In advance, parents had limited expectations of the paediatric palliative care team. Some had difficulty accepting the need for palliative care for their child. Once parents experienced what the team achieved for their child and family, they valued the team's involvement. Valuable elements were as follows: (1) process-related aspects such as continuity, coordination of care, and providing one reliable point of contact; (2) practical support; and (3) the team members' sensitive and reliable attitude. As a point of improvement, parents suggested more concrete clarification upfront of the content of the team's support. Parents feel supported by the paediatric palliative care team. The three elements valued by parents probably form the structure that underlies quality of paediatric palliative care. New teams should cover these three valuable elements.

Breaking the sound barrier: exploring parents' decision-making process of cochlear implants for their children.

Science.gov (United States)

Chang, Pamara F

2017-08-01

To understand the dynamic experiences of parents undergoing the decision-making process regarding cochlear implants for their child(ren). Thirty-three parents of d/Deaf children participated in semi-structured interviews. Interviews were digitally recorded, transcribed, and coded using iterative and thematic coding. The results from this study reveal four salient topics related to parents' decision-making process regarding cochlear implantation: 1) factors parents considered when making the decision to get the cochlear implant for their child (e.g., desire to acculturate child into one community), 2) the extent to which parents' communities influence their decision-making (e.g., norms), 3) information sources parents seek and value when decision-making (e.g., parents value other parent's experiences the most compared to medical or online sources), and 4) personal experiences with stigma affecting their decision to not get the cochlear implant for their child. This study provides insights into values and perspectives that can be utilized to improve informed decision-making, when making risky medical decisions with long-term implications. With thorough information provisions, delineation of addressing parents' concerns and encompassing all aspects of the decision (i.e., medical, social and cultural), health professional teams could reduce the uncertainty and anxiety for parents in this decision-making process for cochlear implantation. Copyright © 2017 Elsevier B.V. All rights reserved.

Parallel direct solver for finite element modeling of manufacturing processes

DEFF Research Database (Denmark)

Nielsen, Chris Valentin; Martins, P.A.F.

2017-01-01

The central processing unit (CPU) time is of paramount importance in finite element modeling of manufacturing processes. Because the most significant part of the CPU time is consumed in solving the main system of equations resulting from finite element assemblies, different approaches have been...

The best motivator priorities parents choose via analytical hierarchy process

Science.gov (United States)

Farah, R. N.; Latha, P.

2015-05-01

Motivation is probably the most important factor that educators can target in order to improve learning. Numerous cross-disciplinary theories have been postulated to explain motivation. While each of these theories has some truth, no single theory seems to adequately explain all human motivation. The fact is that human beings in general and pupils in particular are complex creatures with complex needs and desires. In this paper, Analytic Hierarchy Process (AHP) has been proposed as an emerging solution to move towards too large, dynamic and complex real world multi-criteria decision making problems in selecting the most suitable motivator when choosing school for their children. Data were analyzed using SPSS 17.0 ("Statistical Package for Social Science") software. Statistic testing used are descriptive and inferential statistic. Descriptive statistic used to identify respondent pupils and parents demographic factors. The statistical testing used to determine the pupils and parents highest motivator priorities and parents' best priorities using AHP to determine the criteria chosen by parents such as school principals, teachers, pupils and parents. The moderating factors are selected schools based on "Standard Kualiti Pendidikan Malaysia" (SKPM) in Ampang. Inferential statistics such as One-way ANOVA used to get the significant and data used to calculate the weightage of AHP. School principals is found to be the best motivator for parents in choosing school for their pupils followed by teachers, parents and pupils.

Perspectives on the divorce process: parental perceptions of the legal system and its impact on family relations.

Science.gov (United States)

Pruett, M K; Jackson, T D

2001-01-01

Through semistructured interviews, divorcing parents provide a consumer perspective of the legal process of divorce discussed in law and mental health literature. The parents offer a heightened awareness of families' basic needs within the legal system that may otherwise be overlooked by professionals. This article focuses on narrative accounts provided by 41 divorcing parents to describe both their positive and negative experiences with the legal system and court-related professionals. Although many parents entered the divorce process with hopes for a fair and reasonable experience and outcome, only 12 percent of the parents ended the process with positive expectations. Parents conveyed feelings of a lack of power and control over divorce outcomes. The responses from parents provide valuable insight into how reforms of the legal system can be structured best to increase the quality of the process and ameliorate potentially destructive effects of divorce on the family.

Distribution of Selected Trace Elements in the Bayer Process

Directory of Open Access Journals (Sweden)

Johannes Vind

2018-05-01

Full Text Available The aim of this work was to achieve an understanding of the distribution of selected bauxite trace elements (gallium (Ga, vanadium (V, arsenic (As, chromium (Cr, rare earth elements (REEs, scandium (Sc in the Bayer process. The assessment was designed as a case study in an alumina plant in operation to provide an overview of the trace elements behaviour in an actual industrial setup. A combination of analytical techniques was used, mainly inductively coupled plasma mass spectrometry and optical emission spectroscopy as well as instrumental neutron activation analysis. It was found that Ga, V and As as well as, to a minor extent, Cr are principally accumulated in Bayer process liquors. In addition, Ga is also fractionated to alumina at the end of the Bayer processing cycle. The rest of these elements pass to bauxite residue. REEs and Sc have the tendency to remain practically unaffected in the solid phases of the Bayer process and, therefore, at least 98% of their mass is transferred to bauxite residue. The interest in such a study originates from the fact that many of these trace constituents of bauxite ore could potentially become valuable by-products of the Bayer process; therefore, the understanding of their behaviour needs to be expanded. In fact, Ga and V are already by-products of the Bayer process, but their distribution patterns have not been provided in the existing open literature.

R -process Element Cosmic Rays from Neutron Star Mergers

Energy Technology Data Exchange (ETDEWEB)

Komiya, Yutaka; Shigeyama, Toshikazu [Research Center for the Early Universe, Graduate School of Science, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, 113-0033, Tokyo (Japan)

2017-09-10

Neutron star mergers (NSMs) are one of the most plausible sources of r -process elements in the universe. Therefore, NSMs can also be a major source of ultra-heavy elements in cosmic rays. In this paper, we first estimate the contribution of r -process elements synthesized in NSMs to the ultra-heavy element cosmic rays (UHCRs) by calculating transport equations that take into account energy loss processes and spallations. We show that the flux of UHCRs accelerated by the NSMs themselves fluctuates by many orders of magnitude on a timescale of several million years and can overwhelm UHCRs accelerated by supernova remnants (SNRs) after an NSM takes place within a few kiloparsec from the solar system. Experiments with very long exposure times using meteorites as UHCR detectors can detect this fluctuation. As a consequence, we show that if NSMs are the primary source of UHCRs, future experiments using meteorites may be able to reveal the event history of NSMs in the solar vicinity. We also describe a possible difference in the abundance pattern and energy spectrum of UHCRs between NSM and SNR accelerations.

Parents' Metacognitive Knowledge: Influences on Parent-Child Interactions in a Science Museum Setting

Science.gov (United States)

Thomas, Gregory P.; Anderson, David

2013-06-01

Despite science learning in settings such as science museums being recognized as important and given increasing attention in science education circles, the investigation of parents' and their children's metacognition in such settings is still in its infancy. This is despite an individual's metacognition being acknowledged as an important influence on their learning within and across contexts. This research investigated parents' metacognitive procedural and conditional knowledge, a key element of their metacognition, related to (a) what they knew about how they and their children thought and learned, and (b) whether this metacognitive knowledge influenced their interactions with their children during their interaction with a moderately complex simulation in a science museum. Parents reported metacognitive procedural and conditional knowledge regarding their own and their children's thinking and learning processes. Further, parents were aware that this metacognitive knowledge influenced their interactions with their children, seeing this as appropriate pedagogical action for them within the context of the particular exhibit and its task requirements at the science museum, and for the child involved. These findings have implications for exhibit and activity development within science museum settings.

Environmental implications of element emissions from phosphate-processing operations in southeastern Idaho

Science.gov (United States)

Severson, R.C.; Gough, L.P.

1979-01-01

In order to assess the contribution to plants and soils of certain elements emitted by phosphate processing, we sampled sagebrush, grasses, and A- and C-horizon soils along upwind and downwind transects at Pocatello and Soda Springs, Idaho. Analyses for 70 elements in plants showed that, statistically, the concentration of 7 environmentally important elements, cadmium, chromium, fluorine, selenium, uranium, vanadium, and zinc, were related to emissions from phosphate-processing operations. Two additional elements, lithium and nickel, show probable relationships. The literature on the effects of these elements on plant and animal health is briefly surveyed. Relations between element content in plants and distance from the phosphate-processing operations were stronger at Soda Springs than at Pocatello and, in general, stronger in sagebrush than in the grasses. Analyses for 58 elements in soils showed that, statistically, beryllium, fluorine, iron, lead, lithium, potassium, rubidium, thorium, and zinc were related to emissions only at Pocatello and only in the A horizon. Moreover, six additional elements, copper, mercury, nickel, titanium, uranium, and vanadium, probably are similarly related along the same transect. The approximate amounts of elements added to the soils by the emissions are estimated. In C-horizon soils, no statistically significant relations were observed between element concentrations and distance from the processing sites. At Soda Springs, the nonuniformity of soils at the sampling locations may have obscured the relationship between soil-element content and emissions from phosphate processing.

Indigenous abundances of siderophile elements in the lunar highlands: implications for the origin of the Moon

International Nuclear Information System (INIS)

Delano, J.W.; Ringwood, A.E.

1978-01-01

Substantial indigeneous abundances of siderophile elements have been found to be present in the lunar highlands. The abundances of 13 siderophile elements in the parental magma were estimated by using a simple model. It is shown that metal/silicate fractionation within the Moon cannot have been the cause of the siderophile element abundances in the parental highlands magma and primitive, low-Ti mare basalts. The relative abundances of the indigenous siderophile elements in highlands and mare samples seem, instead, to be the result of complex processes which operated prior to the Moon's accretion. The abundances of the relatively involatile, siderophile elements in the parental highlands magma are strikingly similar to the abundances observed in terrestrial oceanic tholeiites. Furthermore, the abundances of the relatively volatile, siderophile elements in the parental highlands magma are also systematically related to the corresponding abundances in terrestrial oceanic tholeiites. In fact, the parental magma of the lunar highlands can be essentially regarded as having been a volatile-depleted terrestrial oceanic tholeite. The origin of the moon is discussed in the context of the results. The probability that depletion of siderophile elements occurred in an earlier generation of differentiated planetesimals similar to those which formed the basaltic achondrites, stony-irons, and irons is examined but can be dismissed on several grounds. It seems that the uniquely terrestrial 'siderophile signature' within the Moon can be explained only if the Moon was derived from the Earth's mantle subsequent to core-formation. (Auth.)

Optimization of forging processes using finite element simulations

NARCIS (Netherlands)

Bonte, M.H.A.; Fourment, Lionel; Do, Tien-tho; van den Boogaard, Antonius H.; Huetink, Han

2010-01-01

During the last decades, simulation software based on the Finite Element Method (FEM) has significantly contributed to the design of feasible forming processes. Coupling FEM to mathematical optimization algorithms offers a promising opportunity to design optimal metal forming processes rather than

The Effects of Sensory Processing and Behavior of Toddlers on Parent Participation: A Pilot Study

Science.gov (United States)

DaLomba, Elaina; Baxter, Mary Frances; Fingerhut, Patricia; O'Donnell, Anne

2017-01-01

Occupational therapists treat children with sensory processing and behavioral concerns, however, little information exists on how these issues affect parent participation. This pilot study examined the sensory processing and behaviors of toddlers with developmental delays and correlated these with parents' perceived ability to participate in…

Pathways to Parental Knowledge: The Role of Family Process and Family Structure

Science.gov (United States)

Padilla-Walker, Laura M.; Harper, James M.; Bean, Roy A.

2011-01-01

The purpose of the current study was (a) to examine the role of family process on child disclosure, parental solicitation, and parental knowledge and (b) to examine how patterns might differ as a function of family structure. Data for this study were taken from the Flourishing Families Project, which consists of 353 two- and 147 single-parent…

Parental Report of the Diagnostic Process and Outcome: ASD Compared with Other Developmental Disabilities

Science.gov (United States)

Oswald, Donald P.; Haworth, Shannon M.; Mackenzie, Bernadette K.; Willis, Janet H.

2017-01-01

Parents report that the process of getting an autism spectrum disorder (ASD) diagnosis is arduous, lengthy, and fraught with difficulties. This analysis of the Pathways survey data set examined the experiences of parents who said, at the time of the survey, that their child currently had ASD compared with parents who said, at the time of the…

Understanding Silence: An Investigation of the Processes of Silencing in Parent-Teacher Conferences with Somali Diaspora Parents in Danish Public Schools

Science.gov (United States)

Matthiesen, Noomi Christine Linde

2016-01-01

This article questions the dominant understanding that immigrant and refugee parents in parent-teacher conferences are silent because they come from a culture where one does not question the authority of the teacher. Instead, it is argued that they "become" silent through certain interactional processes. Building on material from an…

Elements of random walk and diffusion processes

CERN Document Server

Ibe, Oliver C

2013-01-01

Presents an important and unique introduction to random walk theory Random walk is a stochastic process that has proven to be a useful model in understanding discrete-state discrete-time processes across a wide spectrum of scientific disciplines. Elements of Random Walk and Diffusion Processes provides an interdisciplinary approach by including numerous practical examples and exercises with real-world applications in operations research, economics, engineering, and physics. Featuring an introduction to powerful and general techniques that are used in the application of physical and dynamic

Finite element modeling of the filament winding process using ABAQUS

OpenAIRE

Miltenberger, Louis C.

1992-01-01

A comprehensive stress model of the filament winding fabrication process, previously implemented in the finite element program, WACSAFE, was implemented using the ABAQUS finite element software package. This new implementation, referred to as the ABWACSAFE procedure, consists of the ABAQUS software and a pre/postprocessing routine that was developed to prepare necessary ABAQUS input files and process ABAQUS displacement results for stress and strain computation. The ABWACSAF...

21st Century Parent-Child Sex Communication in the U.S.: A Process Review

Science.gov (United States)

Flores, Dalmacio; Barroso, Julie

2018-01-01

Parent-child sex communication results in the transmission of family expectations, societal values, and role modeling of sexual health risk reduction strategies. Parent-child sex communication’s potential to curb negative sexual health outcomes has sustained a multidisciplinary effort to better understand the process and its impact on the development of healthy sexual attitudes and behaviors among adolescents. This review advances what is known about the process of sex communication in the U.S. by reviewing studies published from 2003 to 2015. We used CINAHL, PsycInfo and Pubmed, the key-terms “parent child” AND “sex education” for the initial query; we included 116 original articles for analysis. Our review underscores long-established factors that prevent parents from effectively broaching and sustaining talks about sex with their children and has also identified emerging concerns unique to today’s parenting landscape. Parental factors salient to sex communication are established long before individuals become parents and are acted upon by influences beyond the home. Child-focused communication factors likewise describe a maturing audience that is far from captive. The identification of both enduring and emerging factors that affect how sex communication occurs will inform subsequent work that will result in more positive sexual health outcomes for adolescents. PMID:28059568

A Dual Super-Element Domain Decomposition Approach for Parallel Nonlinear Finite Element Analysis

Science.gov (United States)

Jokhio, G. A.; Izzuddin, B. A.

2015-05-01

This article presents a new domain decomposition method for nonlinear finite element analysis introducing the concept of dual partition super-elements. The method extends ideas from the displacement frame method and is ideally suited for parallel nonlinear static/dynamic analysis of structural systems. In the new method, domain decomposition is realized by replacing one or more subdomains in a "parent system," each with a placeholder super-element, where the subdomains are processed separately as "child partitions," each wrapped by a dual super-element along the partition boundary. The analysis of the overall system, including the satisfaction of equilibrium and compatibility at all partition boundaries, is realized through direct communication between all pairs of placeholder and dual super-elements. The proposed method has particular advantages for matrix solution methods based on the frontal scheme, and can be readily implemented for existing finite element analysis programs to achieve parallelization on distributed memory systems with minimal intervention, thus overcoming memory bottlenecks typically faced in the analysis of large-scale problems. Several examples are presented in this article which demonstrate the computational benefits of the proposed parallel domain decomposition approach and its applicability to the nonlinear structural analysis of realistic structural systems.

[Parenting styles].

Science.gov (United States)

Torío López, Susana; Peña Calvo, José Vicente; Inda Caro, Mercedes

2008-02-01

Parental educational styles constitute one of the key elements of family socialization. The aim of the present essay is to present the results of a research project carried out in the Principality of Asturias (Spain) among 2,965 families with children of infant and primary-school age (5-8 years old). This research attempts to analyse, among other aspects, parental behaviour tendencies in child upbringing. The analysis of the results obtained allows us to: 1) identify the most common attitudinal and behavioural tendencies of parents in the upbringing of their children; 2) determine how many people have a well defined parental style, and delimit their socio-educational characteristics. Lastly, we consider the need to change some parental behaviour patterns and stress the importance of family education programmes, with the aim of promoting appropriate parenting models and modifying or improving current practices.

Chondritic Meteorites: Nebular and Parent-Body Formation Processes

Science.gov (United States)

Rubin, Alan E.; Lindstrom, David (Technical Monitor)

2002-01-01

It is important to identify features in chondrites that formed as a result of parent-body modification in order to disentangle nebular and asteroidal processes. However, this task is difficult because unmetamorphosed chondritic meteorites are mixtures of diverse components including various types of chondrules, chondrule fragments, refractory and mafic inclusions, metal-sulfide grains and fine-grained matrix material. Shocked chondrites can contain melt pockets, silicate-darkened material, metal veins, silicate melt veins, and impact-melt-rock clasts. This grant paid for several studies that went far in helping to distinguish primitive nebular features from those produced during asteroidal modification processes.

Children's Well-Being during Parents' Marital Disruption Process: A Pooled Time-Series Analysis.

Science.gov (United States)

Sun, Yongmin; Li, Yuanzhang

2002-01-01

Examines the extent to which parents' marital disruption process affects children's academic performance and well-being both before and after parental divorce. Compared with peers in intact families, children of divorce faired less well. Discusses how family resources mediate detrimental effects over time. Similar results are noted for girls and…

Quality control in the fuel elements production process

International Nuclear Information System (INIS)

Katanic-Popovic, J.; Spasic, Z.; Djuricis, Lj.

1977-01-01

Recently great attention has been paid at the international level to the analysis of production processes and quality control of fuel and fuel elements with the aim to speed up activity of proposing and accepting standards and measurement methods. IAEA also devoted great interest to these problems appealing to more active participation of all users and producers fuel elements in a general effort to secure successful work of nuclear plants. For adequate and timely participation in future in the establishment and analysis of general requirements and documentation for the control of purchased or self produced fuel elements in out country it is necessary to be well informed and to follow this activity at the international level. (author)

21st Century Parent-Child Sex Communication in the United States: A Process Review.

Science.gov (United States)

Flores, Dalmacio; Barroso, Julie

Parent-child sex communication results in the transmission of family expectations, societal values, and role modeling of sexual health risk-reduction strategies. Parent-child sex communication's potential to curb negative sexual health outcomes has sustained a multidisciplinary effort to better understand the process and its impact on the development of healthy sexual attitudes and behaviors among adolescents. This review advances what is known about the process of sex communication in the United States by reviewing studies published from 2003 to 2015. We used the Cumulative Index to Nursing and Allied Health Literature (CINAHL), PsycINFO, SocINDEX, and PubMed, and the key terms "parent child" AND "sex education" for the initial query; we included 116 original articles for analysis. Our review underscores long-established factors that prevent parents from effectively broaching and sustaining talks about sex with their children and has also identified emerging concerns unique to today's parenting landscape. Parental factors salient to sex communication are established long before individuals become parents and are acted upon by influences beyond the home. Child-focused communication factors likewise describe a maturing audience that is far from captive. The identification of both enduring and emerging factors that affect how sex communication occurs will inform subsequent work that will result in more positive sexual health outcomes for adolescents.

47 CFR 69.119 - Basic service element expedited approval process.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 3 2010-10-01 2010-10-01 false Basic service element expedited approval process. 69.119 Section 69.119 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES (CONTINUED) ACCESS CHARGES Computation of Charges § 69.119 Basic service element...

Can We Fix This? Parent-Child Repair Processes and Preschoolers' Regulatory Skills.

Science.gov (United States)

Kemp, Christine J; Lunkenheimer, Erika; Albrecht, Erin C; Chen, Deborah

2016-10-01

The repair of difficult parent-child interactions is a marker of healthy functioning in infancy, but less is known about repair processes during early childhood. We used dynamic systems methods to investigate dyadic repair in mothers and their 3-year-old children ( N = 96) and its prediction of children's emotion regulation and behavior problems at a four-month follow-up. Mothers and children completed free play and challenging puzzle tasks. Repair was operationalized as the conditional probability of moving into a dyadic adaptive behavior region after individual or dyadic maladaptive behavior (e.g., child noncompliance, parental criticism). Overall, dyads repaired approximately half their maladaptive behaviors. A greater likelihood of repair during the puzzle task predicted better child emotion regulation and fewer behavior problems in preschool. Results suggest dyadic repair is an important process in early childhood and provide further evidence for the connection between parent-child coregulation and children's developing regulatory capacities. Implications for family-based interventions are discussed.

Family-centred service: differences in what parents of children with cerebral palsy rate important.

Science.gov (United States)

Terwiel, M; Alsem, M W; Siebes, R C; Bieleman, K; Verhoef, M; Ketelaar, M

2017-09-01

A family-centred approach to services of children with disabilities is widely accepted as the foundational approach to service delivery in paediatric health care. The 56 items of the Measure of Processes of Care questionnaire (MPOC-56) all reflect elements of family-centred service. In this study, we investigated which elements of family-centred service are rated important by parents of children with cerebral palsy by adding a question on importance to each item of the MPOC-56 (MPOC-56-I). In total, 175 parents of children with cerebral palsy completed the MPOC-56-I. For each MPOC item, parents were asked to rate the importance on a 5-point scale ranging from 0 (not important at all) up to and including 4 (very important). We used Spearman's rank correlation coefficient to further explore the variation in parents' importance ratings. Parents' importance ratings of the MPOC-56 items varied. The percentage of parents rating an item important (importance rating 3 or 4) varied between 43.8% and 96.8%. The percentage of parents rating an item unimportant (rating 0 or 1) varied between 0.0% and 20.3%, and the percentage of parents rating an item neutral (rating 2) varied between 3.0% and 36.0%. Most diverse importance ratings were found for five items concerning the provision of general information. Three correlations between these items and child and parent characteristics were found. Six items were rated important by almost all (≥95%) parents. These items concern elements of specific information about the child, co-ordinated and comprehensive care for child and family and enabling and partnership. Parents rate the importance of family-centred services for their situation in various ways. These findings endorse that family-centred services should recognize the uniqueness of families and should be tailored to what parents find important. © 2017 John Wiley & Sons Ltd.

Culture, context and therapeutic processes: delivering a parent-child intervention in a remote Aboriginal community.

Science.gov (United States)

Mares, Sarah; Robinson, Gary

2012-04-01

Little is written about the process of delivering mainstream, evidence-based therapeutic interventions for Aboriginal children and families in remote communities. Patterns of interaction between parents and children and expectations about parenting and professional roles and responsibilities vary across cultural contexts. This can be a challenging experience for professionals accustomed to work in urban settings. Language is only a part of cultural difference, and the outsider in a therapeutic group in an Aboriginal community is outside not only in language but also in access to community relationships and a place within those relationships. This paper uses examples from Let's Start, a therapeutic parent-child intervention to describe the impact of distance, culture and relationships in a remote Aboriginal community, on the therapeutic framework, group processes and relationships. Cultural and contextual factors influence communication, relationships and group processes in a therapeutic group program for children and parents in a remote Aboriginal community. Group leaders from within and from outside the community, are likely to have complementary skills. Cultural and contextual factors influence communication, relationships and group processes in a therapeutic group program for children and parents in a remote Aboriginal community. Group leaders from within and from outside the community, are likely to have complementary skills. Program adaptation, evaluation and staff training and support need to take these factors into account to ensure cultural accessibility without loss of therapeutic fidelity and efficacy.

Designing quality of care--contributions from parents: Parents' experiences of care processes in paediatric care and their contribution to improvements of the care process in collaboration with healthcare professionals.

Science.gov (United States)

Gustavsson, Susanne; Gremyr, Ida; Kenne Sarenmalm, Elisabeth

2016-03-01

The aim of this article was to explore whether current quality dimensions for health care services are sufficient to capture how parents perceive and contribute to quality of health care. New quality improvement initiatives that actively involve patients must be examined with a critical view on established quality dimensions to ensure that these measures support patient involvement. This paper used a qualitative and descriptive design. This paper is based on interviews with parents participating in two experience-based co-design projects in a Swedish hospital that included qualitative content analysis of data from 12 parent interviews in paediatric care. Health care professionals often overemphasize their own significance for value creation in care processes and underappreciate parents' ability to influence and contribute to better quality. However, quality is not based solely on how professionals accomplish their task, but is co-created by health care professionals and parents. Consequently, assessment of quality outcomes also must include parents' ability and context. This paper questions current models of quality dimensions in health care, and suggests additional sub-dimensions, such as family quality and involvement quality. This paper underscores the importance of involving parents in health care improvements with health care professionals to capture as many dimensions of quality as possible. © 2015 John Wiley & Sons Ltd.

The Impact of Social Class on Parent-Professional Interaction in School Exclusion Processes: Deficit or Disadvantage?

Science.gov (United States)

Gazeley, Louise

2012-01-01

Although a great deal of previous literature has explored the ways in which social class affects parental engagement in educational processes, there has been surprisingly little discussion of the way in which social class shapes the parent-professional interaction that occurs in school exclusion processes specifically. School exclusion processes…

Parenting Seminars for Divorcing Parents.

Science.gov (United States)

Frieman, Barry B.

1995-01-01

Profiles the parenting seminars and counseling services for divorcing parents offered by the Children of Separation and Divorce Center, a community service agency in Maryland. The seminars are designed to help parents adjust to divorce and understand the needs of their children during and after the divorce process. (MDM)

Model studying the processes arising during fuel element overheating

International Nuclear Information System (INIS)

Usynin, G.B.; Anoshkin, Yu.I.; Vlasichev, G.N.; Galitskikh, Yu.N.; Semenychev, M.A.

1986-01-01

A calculational technique for studying heating and melting of fuel elements in the BN type reactors during an accident with heat release failure and a simulator with central rod heater intended for out-of-pile experiments is developed. The time rangeof the characteristic melting steps for the most thermally stressed fuel element at the reactor nominal power is calculated. The experimental study of the fuel element melting using a simulator with a tungsten heater has proved that the technique for the simultor and fuel can melting, respectively, is correct. The developed technique is used for determining the geometrical values and operational conditions for experiments with simulators, when quantitative and qualitative characteristics of the process under study are rather close to those natural for fuel elements

Chemical and Isotopic Diversity of Organic Particles in Chondrites: Parent Body vs. Nebular Processes

OpenAIRE

Remusat, L.; Guan, Y.; Eiler, J. M.

2009-01-01

Insoluble organic matter (IOM), the main organic constituent in chondrites, has been extensively studied after HF/HCl isolation techniques. Bulk isotopic compositions and elemental ratios show variations between chondrite groups, whereas they are quite homogeneous within each class [1]. Recent isotopic measurements by ion probes have revealed that IOM is heterogeneous at the sub-micron scale [2,3]. Does this heterogeneity reflect parent body evolution or reactions in the gas...

Longitudinal associations between marital stress and externalizing behavior: Does parental sense of competence mediate processes?

Science.gov (United States)

van Eldik, Willemijn M; Prinzie, Peter; Deković, Maja; de Haan, Amaranta D

2017-06-01

Ecological theories emphasize associations between children and elements within their family system, such as the marital relationship. Within a developmental perspective, we longitudinally examined (a) dynamic associations between marital stress and children's externalizing behavior, (b) mediation of these associations by parental sense of competence, and (c) the extent to which associations are similar for mothers and fathers. The sample consisted of 369 two-parent families (46.1% boys; Mage at Time 1 = 7.70 years; 368 mothers, 355 fathers). Marital stress related to having a child, children's externalizing behavior, and perceived parental competence were assessed three times across 8 years. Multigroup analyses were used to examine models for both parents simultaneously and test for similarity in associations across spouses. A bivariate latent growth model indicated positive associated change between marital stress and externalizing behavior, supporting the idea of codevelopment. The cross-lagged panel model revealed a reciprocal relation between marital stress and perceived parental competence across a time interval of 6 years. Additionally, two elicitation effects appeared during adolescence, showing that parents who reported higher externalizing problems in early adolescence reported more marital stress and a lower sense of competence two years later. Similar associations were found for mothers and fathers. Overall, this study indicates that marital stress and externalizing behavior codevelop over time and supports literature on developmental differences regarding interrelations between subsystems and individuals within the family system. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

Transposable Element Misregulation Is Linked to the Divergence between Parental piRNA Pathways in Drosophila Hybrids.

Science.gov (United States)

Romero-Soriano, Valèria; Modolo, Laurent; Lopez-Maestre, Hélène; Mugat, Bruno; Pessia, Eugénie; Chambeyron, Séverine; Vieira, Cristina; Garcia Guerreiro, Maria Pilar

2017-06-01

Interspecific hybridization is a genomic stress condition that leads to the activation of transposable elements (TEs) in both animals and plants. In hybrids between Drosophila buzzatii and Drosophila koepferae, mobilization of at least 28 TEs has been described. However, the molecular mechanisms underlying this TE release remain poorly understood. To give insight on the causes of this TE activation, we performed a TE transcriptomic analysis in ovaries (notorious for playing a major role in TE silencing) of parental species and their F1 and backcrossed (BC) hybrids. We find that 15.2% and 10.6% of the expressed TEs are deregulated in F1 and BC1 ovaries, respectively, with a bias toward overexpression in both cases. Although differences between parental piRNA (Piwi-interacting RNA) populations explain only partially these results, we demonstrate that piRNA pathway proteins have divergent sequences and are differentially expressed between parental species. Thus, a functional divergence of the piRNA pathway between parental species, together with some differences between their piRNA pools, might be at the origin of hybrid instabilities and ultimately cause TE misregulation in ovaries. These analyses were complemented with the study of F1 testes, where TEs tend to be less expressed than in D. buzzatii. This can be explained by an increase in piRNA production, which probably acts as a defence mechanism against TE instability in the male germline. Hence, we describe a differential impact of interspecific hybridization in testes and ovaries, which reveals that TE expression and regulation are sex-biased. © The Author 2017. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.

Bringing parenting interventions back to the future: How randomized microtrials may benefit parenting intervention efficacy

NARCIS (Netherlands)

Leijten, P.; Dishion, T.J.; Thomaes, S.; Raaijmakers, M.A.J.; Orobio de Castro, B.; Matthys, W.

2015-01-01

A novel approach is needed to promote the efficacy of parenting interventions designed to improve children's mental health. The proposed approach bridges developmental and intervention science to test which intervention elements contribute to parenting intervention program efficacy. The approach

[The diagnostic process in spina bifida: parents perception and viewpoint of clinical specialists].

Science.gov (United States)

Herb, G; Streeck, S

1995-01-01

This is a study of the subjective experience of communicative understanding between parents of spina bifida children and medical personnel. Research methods include content analysis of data from semi-structured interviews, a questionnaire to explore the quality of life as well as conversation analytic reconstructions of the "real" communication processes during outpatient clinic which were tape-recorded. Results of the interviews with parents and personnel demonstrate the great relevance of the quality of the relationship in the providing of clinical care; equally important is that the relationship between parents and clinic staff is shaped in a reciprocal fashion. Discrepancies in the perceptions of parents and personnel indicate individual reality constructions. It is desirable that parents and personnel construct a shared reality during their interaction. With respect to this end, the emotional resources of personnel should be regarded as competences and drawn upon more systematically. The parents' role as "experts" should be validated and their active participation in the construction of the communicative situation - which is normally determined by the institution - should be encouraged.

Parenting Children with Disabilities: Navigating through the Storms

Science.gov (United States)

Costantino, Margaret

2010-01-01

Parenting children with disabilities means coming to terms with feelings of loss and grief and balancing these with hope and resilience. Drawing from personal experiences as a parent with two disabled children, the author refers to elements of Schlossberg's model of transition, Herman's writings about trauma and recovery, and elements of…

Transplutonium elements production program: extraction chromatographic process for plutonium irradiated targets

International Nuclear Information System (INIS)

Bourges, J.; Madic, C.; Koehly, G.

1980-01-01

The treatment of irradiated plutonium targets by extraction chromatography allowed the purification of the isotopes 243 Am and 244 Cm on the scale of few tens of grams. This process proved to be extremely simple and flexible, and yielded results which are reproducible in time. The chief advantage of the TBP process over the HDEHP process in high and medium activity conditions lies in the rapid absorption/desorption kinetics of the elements to be purified and in the separation of americium from curium, which largely offsets its lower selectivity for lanthanide elements. it is certainly possible to improve the performance of this process by: a) optimization of the characteristics of the stationary phase, b) improvement in the filling technique and in hydraulic operation of the columns, c) on-line analysis of americium (the key element in actinide/lanthanide separation) in the eluate. The application of extraction chromatography with HD(DiBM)P to the purification of 243 Am of the end of treatment makes the process more consistent, eliminates the delicate stages implemented in hot cell, and considerably improves final product quality

Constructing large scale SCI-based processing systems by switch elements

International Nuclear Information System (INIS)

Wu, B.; Kristiansen, E.; Skaali, B.; Bogaerts, A.; Divia, R.; Mueller, H.

1993-05-01

The goal of this paper is to study some of the design criteria for the switch elements to form the interconnection of large scale SCI-based processing systems. The approved IEEE standard 1596 makes it possible to couple up to 64K nodes together. In order to connect thousands of nodes to construct large scale SCI-based processing systems, one has to interconnect these nodes by switch elements to form different topologies. A summary of the requirements and key points of interconnection networks and switches is presented. Two models of the SCI switch elements are proposed. The authors investigate several examples of systems constructed for 4-switches with simulations and the results are analyzed. Some issues and enhancements are discussed to provide the ideas behind the switch design that can improve performance and reduce latency. 29 refs., 11 figs., 3 tabs

Chemical elements dynamic in the fermentation process of ethanol producing

International Nuclear Information System (INIS)

Nepomuceno, N.; Nadai Fernandes, E.A. de; Bacchi, M.A.

1994-01-01

This paper provides useful information about the dynamics of chemical elements analysed by instrumental neutron activation analysis (INAA) and, found in the various segments of the fermentation process of producing ethanol from sugar cane. For this, a mass balance of Ce, Co, Cs, Eu, Fe, Hf, La, Sc, Sm, and Th, terrigenous elements, as well as Br, K, Rb, and Zn, sugar cane plant elements, has been demonstrated for the fermentation vats in industrial conditions of ethanol production. (author). 10 refs, 4 figs, 1 tab

Dynamics of chemical elements in the fermentation process of ethanol production

International Nuclear Information System (INIS)

Nepomuceno, N.; Fernandes, E.A.N.; Bacchi, M.A.

1997-01-01

Brazil has become the largest producer of biomass ethanol derived from sugar cane. The industrial production is based on the fermentation of sugar cane juice by yeast, inside of large volume vats, in a fed-batch process that recycles yeast cells. To study the dynamics of chemical elements in each operating cycle, five stages of the fermentation process were considered: must, yeast suspension, wine, non-yeast wine and yeast cream. For this, a mass balance of the terrigenous elements, Ce, Co, Cs, Eu, Fe, Hf, La, Na, Sc, Sm, and Th, and the sugar cane plant elements, Br, K, Rb, and Zn, were established in fermentation vats of an industrial scale unit, with sampling undertaken during different climatic conditions (dry and rainy periods). A similar distribution of the sugar cane characteristics elements was found for the stages analysed, while for the terrigenous elements a trend of accumulation in the yeast cream was observed. Preferential absorption of Br, K, Rb, and Zn by yeast cells was indicated by the smaller concentrations observed in yeast suspension than in yeast cream. (author)

Help-seeking process of parents for psychopathology in youths with moderate to borderline intellectual disabilities

NARCIS (Netherlands)

Douma, J.C.H.; Dekker, M.C.; de Ruiter, K.P.; Verhulst, F.C.; Koot, H.M.

2006-01-01

OBJECTIVE: To study the help-seeking process of parents for emotional or behavioral problems in their child with borderline to moderate intellectual disabilities. METHOD: In 2003, in a special education-based sample of 522 youths (ages 10-18years, response = 77.9%), we studied the parents'

Increased Sensory Processing Atypicalities in Parents of Multiplex ASD Families Versus Typically Developing and Simplex ASD Families

OpenAIRE

Donaldson, Chelsea K.; Stauder, Johannes E. A.; Donkers, Franc C. L.

2016-01-01

Recent studies have suggested that sensory processing atypicalities may share genetic influences with autism spectrum disorder (ASD). To further investigate this, the adolescent/adult sensory profile (AASP) questionnaire was distributed to 85 parents of typically developing children (P-TD), 121 parents from simplex ASD families (SPX), and 54 parents from multiplex ASD families (MPX). After controlling for gender and presence of mental disorders, results showed that MPX parents significantly d...

Effect of Processing on the Elemental Composition of Selected Leafy ...

African Journals Online (AJOL)

The elemental composition of leaves of Vernonia amygdalina, Gnetum africana, Gongronema latifolium and Ocimum gratissimum subjected to different processing methods were investigated. Processing methods employed include oven drying, sun drying, fresh milling, steaming and a combination of these while the mineral ...

PGAA method for control of the technologically important elements at processing of sulfide ores

International Nuclear Information System (INIS)

Kurbanov, B.I.; Aripov, G.A.; Allamuratova, G.; Umaraliev, M.

2006-01-01

Full text: Many precious elements (Au, Re, Pt, Pd, Ag, Cu, Ni, Co, Mo) in ores mainly exist in the form of sulfide minerals and the flotation method is often used for processing of such kind of ores. To enhance the efficiency of the process it is very important to carry out the operative control of the elements of interest at various stages of ore processing. In this work the results of studies for developing methods for control of technologically important elements at processing and enrichment sulfide ores, which content the gold, copper, nickel, molybdenum in the ore-processing plants of Uzbekistan. The design of transportable experimental PGAA device on the basis of low-power radionuclide neutron source ( 252 Cf) with neutrons of 2x10 7 neutr/sec allowing to determine element content of the above named ores and their processing products is offered. It is shown that the use of the thermal neutron capture gamma-ray spectrometry in real samples and technological products allows prompt determination of such elements as S, Cu, Ti and others, which are important for flotation of sulfide ores. Efficiency control of the flotation processing of sulfide ores is based on quick determination of the content of sulfur and some other important elements at different stages of the process. It was found that to determine elements the following gamma lines are the most suitable - 840.3 keV for sulfur, 609 keV and 7307 keV for copper and 1381.5 keV, 1498.3 keV and 1585.3 keV for titanium. Based on the measurements of original ores, concentrates of various stages of flotation and flotation slime the possibility for prompt determination of S, Cu and Ti content and thus to get necessary information on the efficiency of the flotation process was shown. (author)

The Impact of Parental Involvement on a Structured Youth Program Experience: A Qualitative Inquiry

Directory of Open Access Journals (Sweden)

Mat D. Duerden

2013-12-01

Full Text Available Parental involvement is an often proposed, but rarely researched, key element of youth programs. Questions remain regarding the impact of parental involvement on program processes and outcomes. Qualitative data were collected over a one-year period with youth participants (n=46, parents (n=26, and teachers (n=5 associated with an international immersion/service learning program for adolescents. Three main research questions guided the data analysis: (1 what role does parental involvement play in the youths’ experience in the program; (2 how does parental involvement in the program influence the parent/child relationship; and (3 what role does parental involvement play in terms of the program’s long-term impact on the youth participants? Findings suggest a relationship between parental involvement in youth programs and improved parent/child communication, bonding, and perceptions of one another. Findings also suggest that having a common ground experience prolonged the experience’s positive post-participation effects.

Bidirectional Relationships Between Parenting Processes and Deviance in a Sample of Inner-City African American Youth

Science.gov (United States)

Harris, Charlene; Vazsonyi, Alexander T.; Bolland, John M.

2016-01-01

The current study assessed for bidirectional relationships among supportive parenting (knowledge), negative parenting (permissiveness), and deviance in a sample (N = 5,325) of poor, inner-city African American youth from the Mobile Youth Survey (MYS) over 4 years. Cross-lagged path analysis provided evidence of significant bidirectional paths among parenting processes (knowledge and permissiveness) and deviance over time. Follow-up multigroup tests provided only modest evidence of dissimilar relationships by sex and by developmental periods. The findings improve our understanding of developmental changes between parenting behaviors and deviance during adolescence and extended current research of the bidirectionality of parent and child relationships among inner-city African American youth. PMID:28316460

Trace elements in agroecosystems and impacts on the environment.

Science.gov (United States)

He, Zhenli L; Yang, Xiaoe E; Stoffella, Peter J

2005-01-01

Trace elements mean elements present at low concentrations (mg kg-1 or less) in agroecosystems. Some trace elements, including copper (Cu), zinc (Zn), manganese (Mn), iron (Fe), molybdenum (Mo), and boron (B) are essential to plant growth and are called micronutrients. Except for B, these elements are also heavy metals, and are toxic to plants at high concentrations. Some trace elements, such as cobalt (Co) and selenium (Se), are not essential to plant growth but are required by animals and human beings. Other trace elements such as cadmium (Cd), lead (Pb), chromium (Cr), nickel (Ni), mercury (Hg), and arsenic (As) have toxic effects on living organisms and are often considered as contaminants. Trace elements in an agroecosystem are either inherited from soil parent materials or inputs through human activities. Soil contamination with heavy metals and toxic elements due to parent materials or point sources often occurs in a limited area and is easy to identify. Repeated use of metal-enriched chemicals, fertilizers, and organic amendments such as sewage sludge as well as wastewater may cause contamination at a large scale. A good example is the increased concentration of Cu and Zn in soils under long-term production of citrus and other fruit crops. Many chemical processes are involved in the transformation of trace elements in soils, but precipitation-dissolution, adsorption-desorption, and complexation are the most important processes controlling bioavailability and mobility of trace elements in soils. Both deficiency and toxicity of trace elements occur in agroecosystems. Application of trace elements in fertilizers is effective in correcting micronutrient deficiencies for crop production, whereas remediation of soils contaminated with metals is still costly and difficult although phytoremediation appears promising as a cost-effective approach. Soil microorganisms are the first living organisms subjected to the impacts of metal contamination. Being responsive and

The origin and evolution of chondrites recorded in the elemental and isotopic compositions of their macromolecular organic matter

Science.gov (United States)

Alexander, C. M. O.'D.; Fogel, M.; Yabuta, H.; Cody, G. D.

2007-09-01

Extraterrestrial organic matter in meteorites potentially retains a unique record of synthesis and chemical/thermal modification by parent body, nebular and even presolar processes. In a survey of the elemental and isotopic compositions of insoluble organic matter (IOM) from 75 carbonaceous, ordinary and enstatite chondrites, we find dramatic variations within and between chondrite classes. There is no evidence that these variations correlate with the time and/or location of chondrite formation, or with any primary petrologic or bulk compositional features that are associated with nebular processes (e.g., chondrule and volatile trace element abundances). Nor is there evidence for the formation of the IOM by Fischer-Tropsch-Type synthesis in the nebula or in the parent bodies. The elemental variations are consistent with thermal maturation and/or oxidation of a common precursor. For reasons that are unclear, there are large variations in isotopic composition within and between chondrite classes that do not correlate in a simple way with elemental composition or petrologic type. Nevertheless, because of the pattern of elemental variations with petrologic type and the lack of any correlation with the primary features of the chondrite classes, at present the most likely explanation is that all IOM compositional variations are the result of parent body processing of a common precursor. If correct, the range of isotopic compositions within and between chondrite classes implies that the IOM is composed of several isotopically distinct components whose relative stability varied with parent body conditions. The most primitive IOM is found in the CR chondrites and Bells (CM2). Isotopically, the IOM from these meteorites resembles the IOM in interplanetary dust particles. Chemically, their IOM resembles the CHON particles of comet Halley. Despite the large isotopic anomalies in the IOM from these meteorites, it is uncertain whether the IOM formed in the interstellar medium or

Parental Regulation of Teenagers' Time: Processes and Meanings

Science.gov (United States)

Sarre, Sophie

2010-01-01

Parental regulation of teenagers' time is pervasive. Parents attempt to constrain, well into adolescence, what their children do with their time, when they do it and how long they do it for. This article draws on interviews with 14- to 16-year-olds in the UK to explore teenagers' experiences of parents' temporal regulation, and whether their…

Over-time associations among parental self-efficacy, promotive parenting practices, and adolescents' externalizing behaviors.

Science.gov (United States)

Glatz, Terese; Buchanan, Christy M

2015-06-01

Parental self-efficacy (PSE) is defined as parents' beliefs about their abilities to influence their children in a way that fosters their children's positive development. Research has shown links among PSE, parenting, and children's behavior (Jones & Prinz, 2005), but there are still questions concerning the associations over time. Theory predicts 3 types of processes relevant to these associations: a PSE-driven process, a parent-behavior-driven process, and a child-driven process. In this study, we tested these processes during early to middle adolescence using reports from 401 parents (286 mothers, 115 fathers) from 305 families, and their adolescents (Mage = 11.5 years), at 3 time points. Cross-lagged panel models were used to examine the associations among PSE, promotive parenting practices, and adolescents' externalizing. Results supported a PSE-driven process for mothers within early adolescence. In addition, evidence for parent-behavior-driven and child-driven processes emerged at different times within this developmental period. (c) 2015 APA, all rights reserved).

Organic waste process containing at least one radioactive element

International Nuclear Information System (INIS)

Le Roy, F.

1977-01-01

The description is given of an organic waste process containing at least one element from the group comprising strontium, cesium, iodine and ruthenium. It comprises the introduction of the organic waste and gaseous oxygen in a bath of melted salt containing an alkaline carbonate, the bath being maintained at a high temperature between 400 and 1000 0 C and at a pressure of 0.5 to 10 bars, so that the organic waste is burnt and oxidised at least partly, the element selected being retained by the bath of melted salt [fr

Quality control of CANDU6 fuel element in fabrication process

International Nuclear Information System (INIS)

Li Yinxie; Zhang Jie

2012-01-01

To enhance the fine control over all aspects of the production process, improve product quality, fuel element fabrication process for CANDU6 quality process control activities carried out by professional technical and management technology combined mode, the quality of the fuel elements formed around CANDU6 weak links - - end plug , and brazing processes and procedures associated with this aspect of strict control, in improving staff quality consciousness, strengthening equipment maintenance, improved tooling, fixtures, optimization process test, strengthen supervision, fine inspection operations, timely delivery carry out aspects of the quality of information and concerns the production environment, etc., to find the problem from the improvement of product quality and factors affecting the source, and resolved to form the active control, comprehensive and systematic analysis of the problem of the quality management concepts, effectively reducing the end plug weld microstructure after the failure times and number of defects zirconium alloys brazed, improved product quality, and created economic benefits expressly provided, while staff quality consciousness and attention to detail, collaboration department, communication has been greatly improved and achieved very good management effectiveness. (authors)

The Origin of r-process Elements in the Milky Way

Science.gov (United States)

Côté, Benoit; Fryer, Chris L.; Belczynski, Krzysztof; Korobkin, Oleg; Chruślińska, Martyna; Vassh, Nicole; Mumpower, Matthew R.; Lippuner, Jonas; Sprouse, Trevor M.; Surman, Rebecca; Wollaeger, Ryan

2018-03-01

Some of the heavy elements, such as gold and europium (Eu), are almost exclusively formed by the rapid neutron capture process (r-process). However, it is still unclear which astrophysical site between core-collapse supernovae and neutron star–neutron star (NS–NS) mergers produced most of the r-process elements in the universe. Galactic chemical evolution (GCE) models can test these scenarios by quantifying the frequency and yields required to reproduce the amount of europium (Eu) observed in galaxies. Although NS–NS mergers have become popular candidates, their required frequency (or rate) needs to be consistent with that obtained from gravitational wave measurements. Here, we address the first NS–NS merger detected by LIGO/Virgo (GW170817) and its associated gamma-ray burst and analyze their implication for the origin of r-process elements. The range of NS–NS merger rate densities of 320–4740 Gpc‑3 yr‑1 provided by LIGO/Virgo is remarkably consistent with the range required by GCE to explain the Eu abundances in the Milky Way with NS–NS mergers, assuming the solar r-process abundance pattern for the ejecta. Under the same assumption, this event has produced about 1–5 Earth masses of Eu, and 3–13 Earth masses of gold. When using theoretical calculations to derive Eu yields, constraining the role of NS–NS mergers becomes more challenging because of nuclear astrophysics uncertainties. This is the first study that directly combines nuclear physics uncertainties with GCE calculations. If GW170817 is a representative event, NS–NS mergers can produce Eu in sufficient amounts and are likely to be the main r-process site.

Finite element simulation of ironing process under warm conditions

Directory of Open Access Journals (Sweden)

Swadesh Kumar Singh

2014-01-01

Full Text Available Metal forming is one of the most important steps in manufacturing of a large variety of products. Ironing in deep drawing is done by adjusting the clearance between the punch and the die and allow the material flow over the punch. In the present investigation effect of extent of ironing behavior on the characteristics of the product like thickness distribution with respect to temperature was studied. With the help of finite element simulation using explicit finite element code LS-DYNA the stress in the drawn cup were predicted in the drawn cup. To increase the accuracy in the simulation process, numbers of integration points were increased in the thickness direction and it was found that there is very close prediction of finite element results to that of experimental ones.

Elements and process for recording direct image neutron radiographs

International Nuclear Information System (INIS)

Poignant, R.V. Jr.; Przybylowicz, E.P.

1975-01-01

An element is provided for recording a direct image neutron radiograph, thus eliminating the need for a transfer step (i.e., the use of a transfer screen). The element is capable of holding an electrostatic charge and comprises a first layer for absorbing neutrons and generating a current by dissipation of said electrostatic charge in proportion to the number of neutrons absorbed, and a second layer for conducting the current generated by the absorbed neutrons, said neutron absorbing layer comprising an insulative layer comprising neutron absorbing agents in a concentration of at least 10 17 atoms per cm 3 . An element for enhancing the effect of the neutron beam by utilizing the secondary emanations of neutron absorbing materials is also disclosed along with a process for using the device. (U.S.)

Determining e-Portfolio Elements in Learning Process Using Fuzzy Delphi Analysis

Science.gov (United States)

Mohamad, Syamsul Nor Azlan; Embi, Mohamad Amin; Nordin, Norazah

2015-01-01

The present article introduces the Fuzzy Delphi method results obtained in the study on determining e-Portfolio elements in learning process for art and design context. This method bases on qualified experts that assure the validity of the collected information. In particular, the confirmation of elements is based on experts' opinion and…

Parenting Interventions for Children with Tic Disorders: Professionals' Perspectives.

Science.gov (United States)

Evans, Gemma A L; Wittkowski, Anja; Butler, Hannah; Hedderly, Tammy; Bunton, Penny

Tic disorders can have an emotional and social impact on children and families, which can in turn have a reciprocal impact on tics. Research into parenting interventions within this population is limited. Twenty-five professionals' views on the acceptability, effectiveness, feasibility and utility of parenting interventions were explored using Q-methodology. Three highly correlated factors emerged, indicating three viewpoints with discrete elements that were underpinned by similar general perspectives. All factors endorsed a psychological approach, the importance of parenting practices, and theoretical and clinical justifications for parenting interventions. Discrete elements of the viewpoints debated the advocated focus, barriers and audience of interventions. Multidisciplinary professionals endorsed parenting interventions as a therapeutic tool within tic disorders. Results provide suggestions to further develop and implement interventions.

Socialization Values and Parenting Practices as Predictors of Parental Involvement in Their Children's Educational Process

NARCIS (Netherlands)

Kikas, Eve; Tulviste, Tiia; Peets, Kätlin

2014-01-01

Research Findings: The purpose of this study was to examine associations between parental socialization values (including inconsistency in values), parenting practices, and parental involvement in their children's education. Altogether 242 Estonian mothers and fathers of first-grade children

Influences of in-fuel physical-chemical processes on serviceability of energy reactor fuel elements

Energy Technology Data Exchange (ETDEWEB)

Bibilashvili, Yu K; Nekrasova, G A; Sukhanov, G I

1989-01-01

In-fuel physico-chemical processes and their effect on stress corrosion cracking of fuel element zirconium cladding are considered in the review. The mechanism of fission product release from the fuel is studied and the negative role of primarily iodine on the cladding corrosion process is demonstrated. Directions for improving the fuel element claddings and fuel to increase the fuel element serviceability are specified.

Influences of in-fuel physical-chemical processes on serviceability of energy reactor fuel elements

International Nuclear Information System (INIS)

Bibilashvili, Yu.K.; Nekrasova, G.A.; Sukhanov, G.I.

1989-01-01

In-fuel physico-chemical processes and their effect on stress corrosion cracking of fuel element zirconium cladding are considered in the review. The mechanism of fission product release from the fuel is studied and the negative role of primarily iodine on the cladding corrosion process is demonstrated. Directions for improving the fuel element claddings and fuel to increase the fuel element serviceability are specified

The Word Game: an innovative strategy for assessing implicit processes in parents at risk for child physical abuse.

Science.gov (United States)

Crouch, Julie L; Irwin, Lauren M; Wells, Brett M; Shelton, Christopher R; Skowronski, John J; Milner, Joel S

2012-06-01

Contemporary theories of child physical abuse (CPA) emphasize the proximal role of social cognitive processes (many of which are implicit in nature) in the occurrence of parental aggression. However, methods that allow for the systematic examination of implicit cognitive processes during the course of aggressive interactions are needed. To address this need, the present study was designed to examine the utility of the Word Game, an innovative procedure designed to assess implicit changes in schema accessibility during the course of an interpersonal exchange involving aggressive response options. The game involves a series of competitive reaction time trials which are actually lexical decision making trials designed to determine the accessibility of schema throughout the game. Each parent was led to believe that they were competing against another player with whom they exchanged sound blasts of varying intensities. Participants in the present study were parents who were either low (n=50) or high (n=20) risk for CPA. Results revealed that high CPA risk parents behaved more aggressively than low CPA risk parents and that provocation augmented the aggressiveness of all participants. Among high CPA risk parents, positive schema became less accessible (whereas negative schema became more accessible) following lost rounds. At the conclusion of the game, high CPA risk parents reported more aggressive motives than low CPA risk parents. Further, aggressive motives significantly mediated the association between CPA risk status and aggressiveness (i.e., mean sound blast selections). Collectively, results support the potential utility of the Word Game as a means of advancing the study of social cognitive processes involved in parental aggression. Published by Elsevier Ltd.

Searching for Elements of Evidence-based Practices in Children’s Usual Care and Examining their Impact

Science.gov (United States)

Garland, Ann F.; Accurso, Erin C.; Haine-Schlagel, Rachel; Brookman-Frazee, Lauren; Roesch, Scott; Zhang, Jin Jin

2014-01-01

Objective Most of the knowledge generated to bridge the research - practice gap has been derived from experimental studies implementing specific treatment models. Alternatively, this study uses observational methods to generate knowledge about community-based treatment processes and outcomes. Aims are to (1) describe outcome trajectories for children with disruptive behavior problems (DBPs), and (2) test how observed delivery of a benchmark set of practice elements common in evidence-based (EB) treatments may be associated with outcome change, while accounting for potential confounding variables. Method Participants included 190 children ages 4–13 with DBPs and their caregivers, plus 85 psychotherapists, recruited from six clinics. All treatment sessions were video-taped and a random sample of four sessions in the first four months of treatment was reliably coded for intensity on 27 practice elements (benchmark set and others). Three outcomes (child symptom severity, parent discipline, and family functioning) were assessed by parent report at intake, four, and eight months. Data were collected on several potential covariates including child, parent, therapist, and service use characteristics. Multi-level modeling was used to assess relationships between observed practice and outcome slopes, while accounting for covariates. Results Children and families demonstrated improvements in all three outcomes, but few significant associations between treatment processes and outcome change were identified. Families receiving greater intensity on the benchmark practice elements did demonstrate greater improvement in the parental discipline outcome. Conclusion Observed changes in outcomes for families in community care were generally not strongly associated with the type or amount of treatment received. PMID:24555882

Parent and Family Processes Related to ADHD Management in Ethnically Diverse Youth.

Science.gov (United States)

Paidipati, Cynthia P; Brawner, Bridgette; Eiraldi, Ricardo; Deatrick, Janet A

Previous research has shown major disparities in attention deficit hyperactivity disorder (ADHD) for diverse youth across America. We do not fully understand, however, how parent and family processes are related to the identification, care-seeking approaches, treatment preferences, and engagement with care systems and services for youth with ADHD. The present study aimed to explore parent and family processes related to the management of ADHD in racially and ethnically diverse youth. This integrative review was structured with the methodology proposed by Whittemore and Knafl. Three major electronic databases yielded a final sample of 32 articles (24 quantitative, 6 qualitative, and 2 mixed methods). Nine themes emerged within three overarching meta-themes. Understanding the unique perspectives of families from diverse backgrounds is essential for clinicians, researchers, and policymakers, who are dedicated to understanding racial and ethnic perspectives and developing ecologically appropriate and family-based interventions for youth with ADHD.

Cost model relationships between textile manufacturing processes and design details for transport fuselage elements

Science.gov (United States)

Metschan, Stephen L.; Wilden, Kurtis S.; Sharpless, Garrett C.; Andelman, Rich M.

1993-01-01

Textile manufacturing processes offer potential cost and weight advantages over traditional composite materials and processes for transport fuselage elements. In the current study, design cost modeling relationships between textile processes and element design details were developed. Such relationships are expected to help future aircraft designers to make timely decisions on the effect of design details and overall configurations on textile fabrication costs. The fundamental advantage of a design cost model is to insure that the element design is cost effective for the intended process. Trade studies on the effects of processing parameters also help to optimize the manufacturing steps for a particular structural element. Two methods of analyzing design detail/process cost relationships developed for the design cost model were pursued in the current study. The first makes use of existing databases and alternative cost modeling methods (e.g. detailed estimating). The second compares design cost model predictions with data collected during the fabrication of seven foot circumferential frames for ATCAS crown test panels. The process used in this case involves 2D dry braiding and resin transfer molding of curved 'J' cross section frame members having design details characteristic of the baseline ATCAS crown design.

Concentration and distribution of elements in plants and soils near phosphate processing factories, Pocatello, Idaho

International Nuclear Information System (INIS)

Severson, R.C.; Gough, L.P.

1976-01-01

The processing of phosphatic shale near Pocatello, Idaho has a direct influence on the element content of local vegetation and soil. Samples of big sagebrush (Artemisia tridentata Nutt. subsp. tridentata) and cheatgrass (Bromus tectorum L.) show important negative relations between the concentration of certain elements (Cd, Cr, F, Ni, P, Se, U, V, and Zn) and distance from phosphate processing factories. Plant tissues within 3 km of the processing factories contain unusually high amounts of these elements except Ni and Se. Important negative relations with distance were also found for certain elements (Be, F, Fe, K, Li, Pb, Rb, Th, and Zn) in A-horizon soil. Amounts of seven elements (Be, F, Li, Pb, Rb, Th, and Zn) being contributed to the upper 5 cm of the soil by phosphate processing, as well as two additional elements (U and V) suspected as being contributed to soil, were estimated, with F showing the greatest increase (about 300 kg/ha) added to soils as far as 4 km downwind from the factories. The greatest number of important relations for both plants and soils was found downwind (northeast) of the processing factories

Mammalian small nucleolar RNAs are mobile genetic elements.

Directory of Open Access Journals (Sweden)

Michel J Weber

2006-12-01

Full Text Available Small nucleolar RNAs (snoRNAs of the H/ACA box and C/D box categories guide the pseudouridylation and the 2'-O-ribose methylation of ribosomal RNAs by forming short duplexes with their target. Similarly, small Cajal body-specific RNAs (scaRNAs guide modifications of spliceosomal RNAs. The vast majority of vertebrate sno/scaRNAs are located in introns of genes transcribed by RNA polymerase II and processed by exonucleolytic trimming after splicing. A bioinformatic search for orthologues of human sno/scaRNAs in sequenced mammalian genomes reveals the presence of species- or lineage-specific sno/scaRNA retroposons (sno/scaRTs characterized by an A-rich tail and an approximately 14-bp target site duplication that corresponds to their insertion site, as determined by interspecific genomic alignments. Three classes of snoRTs are defined based on the extent of intron and exon sequences from the snoRNA parental host gene they contain. SnoRTs frequently insert in gene introns in the sense orientation at genomic hot spots shared with other genetic mobile elements. Previously characterized human snoRNAs are encoded in retroposons whose parental copies can be identified by phylogenic analysis, showing that snoRTs can be faithfully processed. These results identify snoRNAs as a new family of mobile genetic elements. The insertion of new snoRNA copies might constitute a safeguard mechanism by which the biological activity of snoRNAs is maintained in spite of the risk of mutations in the parental copy. I furthermore propose that retroposition followed by genetic drift is a mechanism that increased snoRNA diversity during vertebrate evolution to eventually acquire new RNA-modification functions.

Long-term impact of prevention programs to promote effective parenting: lasting effects but uncertain processes.

Science.gov (United States)

Sandler, Irwin N; Schoenfelder, Erin N; Wolchik, Sharlene A; MacKinnon, David P

2011-01-01

This article reviews findings from 46 randomized experimental trials of preventive parenting interventions. The findings of these trials provide evidence of effects to prevent a wide range of problem outcomes and to promote competencies from one to 20 years later. However, there is a paucity of evidence concerning the processes that account for program effects. Three alternative pathways are proposed as a framework for future research on the long-term effects of preventive parenting programs: (a) through program effects on parenting skills, perceptions of parental efficacy, and reduction in barriers to effective parenting; (b) through program-induced reductions in short-term problems of youth that persist over time, improvements in youth adaptation to stress, and improvements in youth belief systems concerning the self and their relationships with others; and (c) through effects on contexts in which youth become involved and on youth-environment transactions.

Parents of children with cerebral palsy : a review of factors related to the process of adaptation

NARCIS (Netherlands)

Rentinck, I. C. M.; Ketelaar, M.; Jongmans, M. J.; Gorter, J. W.

Background Little is known about the way parents adapt to the situation when their child is diagnosed with cerebral palsy. Methods A literature search was performed to gain a deeper insight in the process of adaptation of parents with a child with cerebral palsy and on factors related to this

Hope for children and families: targeting abusive parenting and the associated impairment of children.

Science.gov (United States)

Bentovim, Arnon; Elliott, Ian

2014-01-01

The purpose of this study is to distill the "effective practice elements" from randomised controlled interventions (RCTs) to prevent the recurrence of abusive and neglectful parenting and the associated health and developmental impairment of children. The resulting elements would be used then to develop a step-by-step modular-systemic approach to intervention that is suitable to the needs of a variety of frontline practitioners in social care, health, and education. A series of 22 randomised RCTs were analysed using the distillation and matching approach to establish the presence of effective practice elements. The focus was physical and sexual abuse, victims and children, and young people as perpetrators; neglect including failure to thrive, emotional abuse (exposure to violence and mental health issues). The studies were analysed for effective practice elements, across different approaches matched to interventions focused on parenting, on children and young people, and on family/professional relationships. The proportion of practice elements utilised in each form of maltreatment was defined. The distillation process resulted in a total of 47 practice elements present across all forms of maltreatment studied. An experienced group of practitioners from statutory and voluntary agencies ordered and integrated the most frequently utilised emerging elements into a series of step-by-step modules, which could fit the complex needs of families when maltreatment had occurred. The resulting manual, Hope for Children and Families, provides a "menu" of evidence-based, step-by-step modular interventions targeting the profile of abusive and neglectful parenting and associated impairments of children. To be effective for frontline practitioners, the manual will need to be delivered in a user-friendly format, training developed, and supervision and support provided.

Phosphorus removal from aqueous solution in parent and aluminum-modified eggshells: thermodynamics and kinetics, adsorption mechanism, and diffusion process.

Science.gov (United States)

Guo, Ziyan; Li, Jiuhai; Guo, Zhaobing; Guo, Qingjun; Zhu, Bin

2017-06-01

Parent and aluminum-modified eggshells were prepared and characterized with X-ray diffraction, specific surface area measurements, infrared spectroscopy, zeta potential, and scanning electron microscope, respectively. Besides, phosphorus adsorptions in these two eggshells at different temperatures and solution pH were carried out to study adsorption thermodynamics and kinetics as well as the mechanisms of phosphorus adsorption and diffusion. The results indicated that high temperature was favorable for phosphorus adsorption in parent and aluminum-modified eggshells. Alkaline solution prompted phosphorus adsorption in parent eggshell, while the maximum adsorption amount was achievable at pH 4 in aluminum-modified eggshell. Adsorption isotherms of phosphorus in these eggshells could be well described by Langmuir and Freundlich models. Phosphorus adsorption amounts in aluminum-modified eggshell were markedly higher compared to those in parent eggshell. Adsorption heat indicated that phosphorus adsorption in parent eggshell was a typically physical adsorption process, while chemical adsorption mechanism of ion exchange between phosphorus and hydroxyl groups on the surface of eggshells was dominated in aluminum-modified eggshell. The time-resolved uptake curves showed phosphorus adsorption in aluminum-modified eggshell was significantly faster than that in parent eggshell. Moreover, there existed two clear steps in time-resolved uptake curves of phosphorus in parent eggshell. Based on pseudo-second order kinetic model and intraparticle diffusion model, we inferred more than one process affected phosphorus adsorption. The first process was the diffusion of phosphorus through water to external surface and the opening of pore channel in the eggshells, and the second process was mainly related to intraparticle diffusion.

The Process of Parents' Decision-Making to Discharge Their Child against Medical Advice (DAMA: A grounded theory study

Directory of Open Access Journals (Sweden)

Nikbakht Nasrabadi Alireza

2016-05-01

Full Text Available Discharge against medical advice (DAMA refers to the phenomenon that patient or the patient’s surrogate decides to leave the hospital before the attending physician confirms the patient is discharged. Children are much more vulnerable to such discharges. This process occurs with different mechanisms that identifying them can be helpful in reducing this phenomenon. We aimed to explore the process of parents' decision-making to discharge their child against medical advice. In-depth, semi-structured interviews were conducted with 10 fathers, 10 mothers, 6 nurses and 3 physician assistants and the data were collected to the point of saturation. Grounded theory methodology was adopted for data collection and analysis. The results of qualitative analysis in the field of the parents' decisionmaking on the DAMA revealed 4 main themes: "lack of family-centered care", "disruption of the parenting process", "distrust to the medical team and center" and "psychological strategy of shirk responsibility for child care and treatment ". By providing family-centered care, adopting measures to empowering the families, developing the trust of parents to the health care team and developing a discharge plan from the beginning of children hospitalization with the cooperation of health care team and parents and considering all factors such as child's special health condition and parent's health related perceptions and beliefs, children will not be discharged against medical advice and will experience better outcomes.

Process to determine light elements content of steel and alloys

Energy Technology Data Exchange (ETDEWEB)

Quintella, Cristina M.A.L.T.M.H.; Castro, Martha T.P.O. [Universidade Federal da Bahia (IQ/UFBA), Salvador, BA (Brazil). Inst. de Quimica. LabLaser; Mac-Culloch, Joao N.L.M. [PETROBRAS, Rio de Janeiro, RJ (Brazil)

2009-07-01

The present work reports a process to determine qualitatively and quantitatively elements of molar mass inferior to 23 within materials, by X rays spectra associated with multivariate data analysis, or chemometric analysis. The spectra is acquired between 5 keV and 22 keV when the materials are exposed to X radiation. Here is reported the direct determination of carbon content in steel and metallic alloys. The process is more effective when using spectral regions which are not usually used. From the analysis of these spectral regions which were not considered before, it was possible to detect light elements with molar mass lower than 23, which have low capacity of absorbing and emitting radiation, but have high capacity of scattering radiation. The process here reported has the advantage that X-Ray spectra obtained are calibrated multivariately, showing high potential for development in order to be used in a portable field equipment. (author)

Correlation between parent and daughter element concentrations as a means of valuing isochrons of igneous rocks

International Nuclear Information System (INIS)

Wetzel, K.

1989-01-01

The question whether a series of samples from an igneous rock can be attributed to an isochron for radiogeochronological dating or for determining the initial isotope ratio of the daughter element of the radioactive decay can be valued by investigating the correlation between the concentrations 1 c and 2 c of mother ( 1 c) and daughter element ( 2 c). The slope of the regression line in a lg 1 c to lg 2 c diagram is given by 1 D - 1/ 2 D - 1 or 1 D - 1/ 2 D - 1 · 2 D/ 1 D, where 1 D and 2 D are the solid-liquid distribution coefficients of parent and daughter element, if the concentration patterns are ruled by fractional crystallization or by partial melting, respectively. The agreement between experimentally found slopes and those calculated from distribution coefficients thus gives additional evidence whether or not the isochron reflects a magma solidification or magma generation age, respectively. The method is discussed for the Rb-Sr-, Sm-Nd-, La-Ce-, La-Ba- and K-Ca-geochronometers, using distribution coefficients calculated on the basis of a global model of the generation of the most abundant continental igneous rocks. The application on Rb-Sr-isochrons of a series of various granites of the Erzgebirge and the Saxonian Granulite Massif in the Southern Part of the GDR reveals new evidence of postmagmatic autosomatosis having altered the chemical composition of the Younger granites of the Western Ore Mountains (Erzgebirge). (author)

Thermal Stir Welding: A New Solid State Welding Process

Science.gov (United States)

Ding, R. Jeffrey

2003-01-01

Thermal stir welding is a new welding process developed at NASA's Marshall Space Flight Center in Huntsville, AL. Thermal stir welding is similar to friction stir welding in that it joins similar or dissimilar materials without melting the parent material. However, unlike friction stir welding, the heating, stirring and forging elements of the process are all independent of each other and are separately controlled. Furthermore, the heating element of the process can be either a solid-state process (such as a thermal blanket, induction type process, etc), or, a fusion process (YG laser, plasma torch, etc.) The separation of the heating, stirring, forging elements of the process allows more degrees of freedom for greater process control. This paper introduces the mechanics of the thermal stir welding process. In addition, weld mechanical property data is presented for selected alloys as well as metallurgical analysis.

Factors Affecting Christian Parents' School Choice Decision Processes: A Grounded Theory Study

Science.gov (United States)

Prichard, Tami G.; Swezey, James A.

2016-01-01

This study identifies factors affecting the decision processes for school choice by Christian parents. Grounded theory design incorporated interview transcripts, field notes, and a reflective journal to analyze themes. Comparative analysis, including open, axial, and selective coding, was used to reduce the coded statements to five code families:…

ABAQUS2MATLAB: A Novel Tool for Finite Element Post-Processing

DEFF Research Database (Denmark)

Martínez Pañeda, Emilio; Papazafeiropoulos, George; Muniz-Calvente, Miguel

2017-01-01

A novel piece of software is presented to connect Abaqus, a sophisticated finite element package, with Matlab, the most comprehensive program for mathematical analysis. This interface between these well-known codes not only benefits from the image processing and the integrated graph-plotting feat......A novel piece of software is presented to connect Abaqus, a sophisticated finite element package, with Matlab, the most comprehensive program for mathematical analysis. This interface between these well-known codes not only benefits from the image processing and the integrated graph...... to demonstrate its capabilities. The source code, detailed documentation and a large number of tutorials can be freely downloaded from www.abaqus2matlab.com....

Parenting among Wealthy Danish Families: A Concerted Civilising Process

Science.gov (United States)

Bach, Dil

2014-01-01

This article explores the parenting practices of wealthy Danish families and offers insight into the workings of dominant parenting norms within contemporary Danish society. Based on ethnographic fieldwork conducted among 15 families living north of Copenhagen, Denmark, this article identifies the parenting strategies of people with ample…

Mapping Cardiac Physiology and Parenting Processes in Maltreating Mother–Child Dyads

Science.gov (United States)

Skowron, Elizabeth A.; Loke, Eric; Gatzke-Kopp, Lisa M.; Cipriano-Essel, Elizabeth A.; Woehrle, Petra L.; Van Epps, John J.; Gowda, Anjali; Ammerman, Robert T.

2013-01-01

Child maltreatment (CM) lies on an extreme end of the continuum of parenting-at-risk, and while CM has been linked with a variety of behavioral indicators of dysregulation in children, less is known about how physiological markers of regulatory capacity contribute to this association. The present study examined patterns of mother and child physiological regulation and their relations with observed differences in parenting processes during a structured interaction. Abusing, neglecting, and non-CM mothers and their 3- to 5-year-old children completed a resting baseline and moderately challenging joint task. The structural analysis of social behavior was used to code mother–child interactions while simultaneous measures of respiratory sinus arrhythmia were obtained. Results indicated that physically abusive mothers were more likely to react to children’s positive bids for autonomy with strict and hostile control, than either neglecting or non-CM mothers. CM exposure and quality of maternal responding to children’s autonomous bids were uniquely associated with lower parasympathetic tone in children. Results provide evidence of neurodevelopmental associations between early CM exposure, the immediate interactive context of parenting, and children’s autonomic physiology. PMID:21842991

Finite Element Modeling of Adsorption Processes for Gas Separation and Purification

International Nuclear Information System (INIS)

Humble, Paul H.; Williams, Richard M.; Hayes, James C.

2009-01-01

Pacific Northwest National Laboratory (PNNL) has expertise in the design and fabrication of automated radioxenon collection systems for nuclear explosion monitoring. In developing new systems there is an ever present need to reduce size, power consumption and complexity. Most of these systems have used adsorption based techniques for gas collection and/or concentration and purification. These processes include pressure swing adsorption, vacuum swing adsorption, temperature swing adsorption, gas chromatography and hybrid processes that combine elements of these techniques. To better understand these processes, and help with the development of improved hardware, a finite element software package (COMSOL Multiphysics) has been used to develop complex models of these adsorption based operations. The partial differential equations used include a mass balance for each gas species and adsorbed species along with a convection conduction energy balance equation. These equations in conjunction with multicomponent temperature dependent isotherm models are capable of simulating separation processes ranging from complex multibed PSA processes, and multicomponent temperature programmed gas chromatography, to simple two component temperature swing adsorption. These numerical simulations have been a valuable tool for assessing the capability of proposed processes and optimizing hardware and process parameters.

Spectral evidence for amorphous silicates in least-processed CO meteorites and their parent bodies

Science.gov (United States)

McAdam, Margaret M.; Sunshine, Jessica M.; Howard, Kieren T.; Alexander, Conel M.; McCoy, Timothy J.; Bus, Schelte J.

2018-05-01

Least-processed carbonaceous chondrites (carbonaceous chondrites that have experienced minimal aqueous alteration and thermal metamorphism) are characterized by their predominately amorphous iron-rich silicate interchondrule matrices and chondrule rims. This material is highly susceptible to destruction by the parent body processes of thermal metamorphism or aqueous alteration. The presence of abundant amorphous material in a meteorite indicates that the parent body, or at least a region of the parent body, experienced minimal processing since the time of accretion. The CO chemical group of carbonaceous chondrites has a significant number of these least-processed samples. We present visible/near-infrared and mid-infrared spectra of eight least-processed CO meteorites (petrologic type 3.0-3.1). In the visible/near-infrared, these COs are characterized by a broad weak feature that was first observed by Cloutis et al. (2012) to be at 1.3-μm and attributed to iron-rich amorphous silicate matrix materials. This feature is observed to be centered at 1.4-μm for terrestrially unweathered, least-processed CO meteorites. At mid-infrared wavelengths, a 21-μm feature, consistent with Si-O vibrations of amorphous materials and glasses, is also present. The spectral features of iron-rich amorphous silicate matrix are absent in both the near- and mid-infrared spectra of higher metamorphic grade COs because this material has recrystallized as crystalline olivine. Furthermore, spectra of least-processed primitive meteorites from other chemical groups (CRs, MET 00426 and QUE 99177, and C2-ungrouped Acfer 094), also exhibit a 21-μm feature. Thus, we conclude that the 1.4- and 21-μm features are characteristic of primitive least-processed meteorites from all chemical groups of carbonaceous chondrites. Finally, we present an IRTF + SPeX observation of asteroid (93) Minerva that has spectral similarities in the visible/near-infrared to the least-processed CO carbonaceous chondrites

Authoritative Parenting and Cigarette Smoking Among Multiethnic Preadolescents: The Mediating Role of Anti-Tobacco Parenting Strategies

Science.gov (United States)

Highland, Krista B.; Tercyak, Kenneth P.; Luta, Gheorghe; Niaura, Raymond S.

2014-01-01

Introduction Parenting has been shown to affect smoking among children in U.S. majority groups, but less is known about this association among multiethnic urban populations. Our study examines the role of parenting on smoking among a highly diverse sample. Methods Health surveys were collected from eighth graders (N =459) in 2 low-income urban schools. Structural equation models examined the direct and indirect effects of authoritative parenting on lifetime smoking. A moderated mediation analysis examined whether indirect effects of authoritative parenting vary among racial/ethnic groups. Results Authoritative controlling parenting, characterized by limit setting, was positively associated with anti-tobacco parenting. Anti-tobacco parenting was inversely associated with smoking, mediating the relationship between controlling parenting and smoking. There was no evidence that mediation was moderated by race/ethnicity. Conclusions Parent training, which focuses on setting rules and expectations, can be an important and universal element of smoking prevention programs targeted to youth in diverse communities. PMID:24306966

Authoritative parenting and cigarette smoking among multiethnic preadolescents: the mediating role of anti-tobacco parenting strategies.

Science.gov (United States)

Stanton, Cassandra A; Highland, Krista B; Tercyak, Kenneth P; Luta, Gheorghe; Niaura, Raymond S

2014-01-01

Parenting has been shown to affect smoking among children in U.S. majority groups, but less is known about this association among multiethnic urban populations. Our study examines the role of parenting on smoking among a highly diverse sample. Health surveys were collected from eighth graders (N = 459) in 2 low-income urban schools. Structural equation models examined the direct and indirect effects of authoritative parenting on lifetime smoking. A moderated mediation analysis examined whether indirect effects of authoritative parenting vary among racial/ethnic groups. Authoritative controlling parenting, characterized by limit setting, was positively associated with anti-tobacco parenting. Anti-tobacco parenting was inversely associated with smoking, mediating the relationship between controlling parenting and smoking. There was no evidence that mediation was moderated by race/ethnicity. Parent training, which focuses on setting rules and expectations, can be an important and universal element of smoking prevention programs targeted to youth in diverse communities.

Investigating Planetesimal Evolution by Experiments with Fe-Ni Metallic Melts: Light Element Composition Effects on Trace Element Partitioning Behavior

Science.gov (United States)

Chabot, N. L.

2017-12-01

As planetesimals were heated up in the early Solar System, the formation of Fe-Ni metallic melts was a common occurrence. During planetesimal differentiation, the denser Fe-Ni metallic melts separated from the less dense silicate components, though some meteorites suggest that their parent bodies only experienced partial differentiation. If the Fe-Ni metallic melts did form a central metallic core, the core eventually crystallized to a solid, some of which we sample as iron meteorites. In all of these planetesimal evolution processes, the composition of the Fe-Ni metallic melt influenced the process and the resulting trace element chemical signatures. In particular, the metallic melt's "light element" composition, those elements present in the metallic melt in a significant concentration but with lower atomic masses than Fe, can strongly affect trace element partitioning. Experimental studies have provided critical data to determine the effects of light elements in Fe-Ni metallic melts on trace element partitioning behavior. Here I focus on combining numerous experimental results to identify trace elements that provide unique insight into constraining the light element composition of early Solar System Fe-Ni metallic melts. Experimental studies have been conducted at 1 atm in a variety of Fe-Ni systems to investigate the effects of light elements on trace element partitioning behavior. A frequent experimental examination of the effects of light elements in metallic systems involves producing run products with coexisting solid metal and liquid metal phases. Such solid-metal-liquid-metal experiments have been conducted in the Fe-Ni binary system as well as Fe-Ni systems with S, P, and C. Experiments with O-bearing or Si-bearing Fe-Ni metallic melts do not lend themselves to experiments with coexisting solid metal and liquid metal phases, due to the phase diagrams of these elements, but experiments with two immiscible Fe-Ni metallic melts have provided insight into

Solvent Refined Coal (SRC) process: trace elements. Research and development report No. 53, interim report No. 30. Volume III. Pilot plant development work. Part 6. The fate of trace elements in the SRC process

International Nuclear Information System (INIS)

Khalil, S.R.

1980-02-01

Instrumental neutron activation analysis was used to study the distribution and fate of up to 36 elements in the Solvent Refined Coal Process Pilot Plant located at Fort Lewis, Washington. The elements Ti, V, Mg, Ca, Al, Cl, Mn, As, Br, Na, K, Sm, La, Ga, Cu, Sb, Se, Hg, Ni, Co, Cr, Fe, Rb, Cs, Sc, Tb, Eu, Ce, Sr, Ba, Th, U, Hf, Ta, Zr and Zn were measured in feed coal, insoluble residues, process solvent, process and effluent waters, by-product sulfur, SRC-I solid product, liquid-liquid separator oils and SRC-II liquid products. The material balance was calculated for each element from the concentration data and yields of each process fraction for both the SRC-I and SRC-II processes. Except for Ti, Cl and Br in the SRC-I mode and Hg in the SRC-II mode, each element was substantially lower in the SRC products than in the original feed coal. Residues from the process contained more than 80% of the trace element content found in the coal, except for Hg. More than 98.5% of the total contents of K and Fe in coal were retained in the insoluble residues. Elements such as Hg, Se, As and Sb can form volatile compounds (such as Hg 0 , H 2 Se, AsH 3 and SbH 3 ) stable under the process conditions. The high enhancement factors of Se (957), As (202) and Sb (27.4) in the aqueous phase of the separator water compared to that of the oil are evidence for the formation of volatile species which are more soluble in water than in the oil phase

Study of 3-D stress development in parent and twin pairs of a hexagonal close-packed polycrystal: Part II – crystal plasticity finite element modeling

International Nuclear Information System (INIS)

Abdolvand, Hamidreza; Majkut, Marta; Oddershede, Jette; Wright, Jonathan P.; Daymond, Mark R.

2015-01-01

Stress heterogeneity within each individual grain of polycrystalline Zircaloy-2 is studied using a crystal plasticity finite element (CPFE) model. For this purpose, the weighted Voronoi tessellation method is used to construct 3D geometries of more than 2600 grains based on their center-of-mass positions and volumes as measured by three-dimensional X-ray diffraction (3DXRD) microscopy. The constructed microstructure is meshed with different element densities and for different numbers of grains. Then a selected group of twin and parent pairs are studied. It is shown that the measured average stress for each grain from the 3DXRD experiment is within the stress variation zone of the grain modeled in the CPFE simulation. Also, the CPFE average stress calculation for each grain is in good agreement with the measured average stress values. It is shown that upon considering the stress variations within each grain, stresses in the parent and twin are quite different if they are plotted in the global coordinate system. However, if the stress tensor is rotated into the local coordinate system of the twin habit plane, all the stress components averaged over the presented population are close, except for the shear acting on the twin plane and the transverse stress. This result is significant as it provides information needed to model such parent-twin interactions in crystal plasticity codes

Gender Differences in How Family Income and Parental Education Relate to Reading Achievement in China: The Mediating Role of Parental Expectation and Parental Involvement

Directory of Open Access Journals (Sweden)

Xiaolin Guo

2018-05-01

Full Text Available The impact of social economic status (SES on children's academic outcomes has been well documented. However, the mechanisms underlying this relationship remain poorly understood. Furthermore, the process by which SES relates to academic achievement needs to be studied separately for boys and girls. Using a sample of 598 Chinese children (299 boys, 299 girls in grades 4 to 6 and their parents, this study examined the process of how family SES, specifically family income and parental education, indirectly relates to children's reading achievement through parental expectation and parental involvement and whether this process differs between boys and girls. The results revealed that parental expectation and specific parental involvement behaviors played critical mediating roles between family SES and reading achievement. Moreover, the exact nature of these links differed by the gender of children. For boys, both the effect of parental education and the effect of family income were partially mediated by parental expectation and parent-child communication orderly. For girls, the effect of parental education was partially mediated by three separate pathways: (1 home monitoring; (2 parent-child communication; and (3 parental expectation followed by parent-child communication, while the effect of family income was fully mediated by parent-child communication. These findings suggest a process through which SES factors are related to children's academic development and identify a context under which these associations may differ. The practical implications of these findings are discussed, along with possible future research directions.

Gender Differences in How Family Income and Parental Education Relate to Reading Achievement in China: The Mediating Role of Parental Expectation and Parental Involvement.

Science.gov (United States)

Guo, Xiaolin; Lv, Bo; Zhou, Huan; Liu, Chunhui; Liu, Juan; Jiang, Kexin; Luo, Liang

2018-01-01

The impact of social economic status (SES) on children's academic outcomes has been well documented. However, the mechanisms underlying this relationship remain poorly understood. Furthermore, the process by which SES relates to academic achievement needs to be studied separately for boys and girls. Using a sample of 598 Chinese children (299 boys, 299 girls) in grades 4 to 6 and their parents, this study examined the process of how family SES, specifically family income and parental education, indirectly relates to children's reading achievement through parental expectation and parental involvement and whether this process differs between boys and girls. The results revealed that parental expectation and specific parental involvement behaviors played critical mediating roles between family SES and reading achievement. Moreover, the exact nature of these links differed by the gender of children. For boys, both the effect of parental education and the effect of family income were partially mediated by parental expectation and parent-child communication orderly. For girls, the effect of parental education was partially mediated by three separate pathways: (1) home monitoring; (2) parent-child communication; and (3) parental expectation followed by parent-child communication, while the effect of family income was fully mediated by parent-child communication. These findings suggest a process through which SES factors are related to children's academic development and identify a context under which these associations may differ. The practical implications of these findings are discussed, along with possible future research directions.

Astrophysical site(s of r-process elements in galactic chemodynamical evolution model

Directory of Open Access Journals (Sweden)

Hirai Yutaka

2016-01-01

Full Text Available Astrophysical site(s of rapid neutron-capture process (r-process is (are not identified yet. Although core-collapse supernovae have been regarded as one of the possible candidates of the astrophysical site of r-process, nucleosynthesis studies suggest that serious difficulties in core-collapse supernovae to produce heavy elements with mass number of ≳110. Recent studies show that neutron star mergers (NSMs can synthesize these elements due to their neutron rich environment. Some chemical evolution studies of the Milky Way halo, however, hardly reproduce the observed star-to-star scatters of the abundance ratios of r-process elements (e.g., Eu in extremely metal-poor stars. This is because of their low rate (∼ 10−4 yr−1 for a Milky Way size galaxy and long merger time (≳ 100 Myr. This problem might be solved if the stars in the Galactic halo are consisted of the stars formed in dwarf galaxies where the star formation efficiencies were very low. In this study, we carry out numerical simulations of galactic chemo-dynamical evolution using an N-body/smoothed particle hydrodynamics code. We construct detailed chemo-dynamical evolution model for the Local Group dwarf spheroidal galaxies (dSphs assuming that the NSMs are the major source of r-process elements. Our models successfully reproduce the observed dispersion in [Eu/Fe] as a function of [Fe/H] if we set merger time of NSMs, ≲ 300 Myr with the Galactic NSM rate of ∼ 10−4 yr−1. In addition, our results are consistent with the observed metallicity distribution of dSphs. In the early phase (≲1 Gyr of galaxy evolution is constant due to low star formation efficiency of dSphs. This study supports the idea that NSMs are the major site of r-process nucleosynthesis.

Predicting Parent-Child Aggression Risk: Cognitive Factors and Their Interaction With Anger.

Science.gov (United States)

Rodriguez, Christina M

2018-02-01

Several cognitive elements have previously been proposed to elevate risk for physical child abuse. To predict parent-child aggression risk, the current study evaluated the role of approval of parent-child aggression, perceptions of children as poorly behaved, and discipline attributions. Several dimensions of attributions specifically tied to parents' discipline practices were targeted. In addition, anger experienced during discipline episodes was considered a potential moderator of these cognitive processes. Using a largely multiple-indicator approach, a sample of 110 mothers reported on these cognitive and affective aspects that may occur when disciplining their children as well as responding to measures of parent-child aggression risk. Findings suggest that greater approval of parent-child aggression, negative perceptions of their child's behavior, and discipline attributions independently predicted parent-child aggression risk, with anger significantly interacting with mothers' perception of their child as more poorly behaved to exacerbate their parent-child aggression risk. Of the discipline attribution dimensions evaluated, mothers' sense of external locus of control and believing their child deserved their discipline were related to increase parent-child aggression risk. Future work is encouraged to comprehensively evaluate how cognitive and affective components contribute and interact to increase risk for parent-child aggression.

Increased Sensory Processing Atypicalities in Parents of Multiplex ASD Families versus Typically Developing and Simplex ASD Families

Science.gov (United States)

Donaldson, Chelsea K.; Stauder, Johannes E. A.; Donkers, Franc C. L.

2017-01-01

Recent studies have suggested that sensory processing atypicalities may share genetic influences with autism spectrum disorder (ASD). To further investigate this, the adolescent/adult sensory profile (AASP) questionnaire was distributed to 85 parents of typically developing children (P-TD), 121 parents from simplex ASD families (SPX), and 54…

Struggling with one's own parenting after an upbringing with substance abusing parents.

Science.gov (United States)

Tedgård, Eva; Råstam, Maria; Wirtberg, Ingegerd

2018-12-01

To add to our knowledge concerning the key elements involved in the individual's experience of growing up with substance abusing parents and the resulting challenges this involved for their own parenthood. In-depth interviews were conducted with 19 parents who had participated in a mental health intervention programme. All had experienced substance abusing parents in their family of origin. Qualitative content analysis was used to analyse the data. They also completed a self-report questionnaire assessing their attachment style. Participants reported a high incidence of emotional abuse and neglect coupled with inadequate support from the community. Their own parental role was influenced by high parental stress and a majority had an insecure attachment style. All participants had experienced a very difficult childhood which was reinforced by the fact that they received little support from society. Their childhood experience and the resulting challenges that this created in their own parenting role could negatively influence their own children's ability to form a secure psychosocial development. It is therefore important to develop instruments that can help to identify children who were raised in misuse families in order to accommodate the transgenerational effects of growing up with substance abusing parents.

Moving toward quality palliative cancer care: parent and clinician perspectives on gaps between what matters and what is accessible.

Science.gov (United States)

Kassam, Alisha; Skiadaresis, Julia; Habib, Sharifa; Alexander, Sarah; Wolfe, Joanne

2013-03-01

The National Consensus Project (NCP) published a set of standards for quality palliative care delivery. A key step before applying these guidelines to pediatric oncology is to evaluate how much families and clinicians value these standards. We aimed to determine which elements of palliative care are considered important according to bereaved parents and pediatric oncology clinicians and to determine accessibility of these elements. We administered questionnaires to 75 bereaved parents (response rate, 54%) and 48 pediatric oncology clinicians (response rate, 91%) at a large teaching hospital. Outcome measures included importance ratings and accessibility of core elements of palliative care delivery. Fifteen of 20 core elements were highly valued by both parents and clinicians (defined as > 60% of parents and clinicians reporting the item as important). Compared with clinicians, parents gave higher ratings to receiving cancer-directed therapy during the last month of life (P involvement of a spiritual mentor (P = .03). Of the valued elements, only three were accessible more than 60% of the time according to clinicians and parents. Valued elements least likely to be accessible included a direct admission policy to hospital, sibling support, and parent preparation for medical aspects surrounding death. Parents and clinicians highly value a majority of palliative care elements described in the NCP framework. Children with advanced cancer may not be receiving key elements of palliative care despite parents and clinicians recognizing them as important. Evaluation of barriers to provision of quality palliative care and strategies for overcoming them are critical.

Strategic Alliance Development - A Process Model A Case Study Integrating Elements of Strategic Alliances

OpenAIRE

Mohd Yunos, Mohd Bulkiah

2007-01-01

There has been enormous increase in the formation of strategic alliance and the research efforts devoted to understanding alliance development process over the last few decades. However, the critical elements that influence the each stage of alliance development are yet unexplored. This dissertation aims to fill this gap and to supplement it by introducing an integrated process model of strategic alliance development and its critical elements. The process model for strategic alliance developm...

Gear hot forging process robust design based on finite element method

International Nuclear Information System (INIS)

Xuewen, Chen; Won, Jung Dong

2008-01-01

During the hot forging process, the shaping property and forging quality will fluctuate because of die wear, manufacturing tolerance, dimensional variation caused by temperature and the different friction conditions, etc. In order to control this variation in performance and to optimize the process parameters, a robust design method is proposed in this paper, based on the finite element method for the hot forging process. During the robust design process, the Taguchi method is the basic robust theory. The finite element analysis is incorporated in order to simulate the hot forging process. In addition, in order to calculate the objective function value, an orthogonal design method is selected to arrange experiments and collect sample points. The ANOVA method is employed to analyze the relationships of the design parameters and design objectives and to find the best parameters. Finally, a case study for the gear hot forging process is conducted. With the objective to reduce the forging force and its variation, the robust design mathematical model is established. The optimal design parameters obtained from this study indicate that the forging force has been reduced and its variation has been controlled

Abaqus2Matlab: A suitable tool for finite element post-processing

DEFF Research Database (Denmark)

Papazafeiropoulos, George; Muñiz-Calvente, Miguel; Martínez Pañeda, Emilio

2017-01-01

A suitable piece of software is presented to connect Abaqus, a sophisticated finite element package, with Matlab, the most comprehensive program for mathematical analysis. This interface between these well- known codes not only benefits from the image processing and the integrated graph-plotting ......A suitable piece of software is presented to connect Abaqus, a sophisticated finite element package, with Matlab, the most comprehensive program for mathematical analysis. This interface between these well- known codes not only benefits from the image processing and the integrated graph...... crack propagation in structural materials by means of a cohesive zone approach. The source code, detailed documentation and a large number of tutorials can be freely downloaded from www.abaqus2matlab.com ....

The AMBRE Project: r-process element abundances in the Milky Way thin and thick discs

Science.gov (United States)

Guiglion, Guillaume; de Laverny, Patrick; Recio-Blanco, Alejandra; Worley, C. Clare

2018-04-01

Chemical evolution of r-process elements in the Milky Way disc is still a matter of debate. We took advantage of high resolution HARPS spectra from the ESO archive in order to derive precise chemical abundances of 3 r-process elements Eu, Dy & Gd for a sample of 4 355 FGK Milky Way stars. The chemical analysis has been performed thanks to the automatic optimization pipeline GAUGUIN. Based on the [α/Fe] ratio, we chemically characterized the thin and the thick discs, and present here results of these 3 r-process element abundances in both discs. We found an unexpected Gadolinium and Dysprosium enrichment in the thick disc stars compared to Europium, while these three elements track well each other in the thin disc.

Maternal Personality, Parenting Cognitions and Parenting Practices

Science.gov (United States)

Bornstein, Marc H.; Hahn, Chun-Shin; Haynes, O. Maurice

2011-01-01

A community sample of 262 European American mothers of firstborn 20-month-olds completed a personality inventory and measures of parenting cognitions (knowledge, self-perceptions, and reports about behavior) and was observed in interaction with their children from which measures of parenting practices (language, sensitivity, affection, and play) were independently coded. Factor analyses of the personality inventory replicated extraction of the Five-Factor model of personality (Openness, Neuroticism, Extraversion, Agreeableness, and Conscientiousness). Controlling for sociodemographic characteristics, the five personality factors qua variables and in patterns qua clusters related differently to diverse parenting cognitions and practices, supporting the multidimensional, modular, and specific nature of parenting. Maternal personality in the normal range, a theoretically important but empirically neglected factor in everyday parenting, has meaning in studies of parenting, child development, and family process. PMID:21443335

Long-term Impact of Prevention Programs to Promote Effective Parenting: Lasting Effects but Uncertain Processes

OpenAIRE

Sandler, Irwin; Schoenfelder, Erin; Wolchik, Sharlene; MacKinnon, David

2011-01-01

This chapter reviews findings from 46 randomized experimental trials of preventive parenting interventions. The findings of these trials provide evidence of effects to prevent a wide range of problem outcomes and to promote competencies from one to twenty years later. However, there is a paucity of evidence concerning the processes that account for program effects. Three alternative pathways are proposed as a framework for future research on the long-term effects of preventive parenting progr...

Intervention decision-making processes and information preferences of parents of children with autism spectrum disorders.

Science.gov (United States)

Grant, N; Rodger, S; Hoffmann, T

2016-01-01

When a child is diagnosed with autism, parents are faced with the task of choosing from many different intervention options. To find information about the options available, parents turn to a number of different sources. This study explores parents' (n = 23) intervention decision-making processes and information preferences following the diagnosis of ASD for their child. Qualitative thematic analysis of verbatim transcripts from interviews and focus groups involving parents of children with an autism diagnosis was undertaken. Analysis of the results revealed that there are concurrent emotional and pragmatic intervention 'journeys' undertaken by parents post diagnosis, which encompass the primary themes of: (1) information sources used, (2) parents' information preferences and (3) factors influencing intervention decision making. Parents described a journey from the point of diagnosis that involved seeking information on ASD interventions from multiple sources, with the Internet being the primary source. They were overwhelmed by the sheer volume of information available, and their preferences for information varied according to their stage in the journey post diagnosis. Parents had a 'trial and error' approach to choosing ASD interventions, with confidence increasing as they became more familiar with their child's condition, and had opportunities to explore numerous information sources about their child's diagnosis. While confidence increased over time, consideration of the effectiveness or evidence supporting interventions remained largely absent throughout the journey. This study highlights the need for parents of children with ASD to be supported to make informed intervention decisions, particularly with consideration for research evidence. © 2015 John Wiley & Sons Ltd.

Reading Processes and Parenting Styles

Science.gov (United States)

Carreteiro, Rui Manuel; Justo, João Manuel; Figueira, Ana Paula

2016-01-01

Home literacy environment explains between 12 and 18.5% of the variance of children's language skills. Although most authors agree that children whose parents encourage them to read tend to develop better and earlier reading skills, some authors consider that the impact of family environment in reading skills is overvalued. Probably, other…

Complete Element Abundances of Nine Stars in the r-process Galaxy Reticulum II

Science.gov (United States)

Ji, Alexander P.; Frebel, Anna; Simon, Joshua D.; Chiti, Anirudh

2016-10-01

We present chemical abundances derived from high-resolution Magellan/Magellan Inamori Kyocera Echelle spectra of the nine brightest known red giant members of the ultra-faint dwarf galaxy Reticulum II (Ret II). These stars span the full metallicity range of Ret II (-3.5 contaminated known r-process pattern. The abundances of lighter elements up to the iron peak are otherwise similar to abundances of stars in the halo and in other ultra-faint dwarf galaxies. However, the scatter in abundance ratios is large enough to suggest that inhomogeneous metal mixing is required to explain the chemical evolution of this galaxy. The presence of low amounts of neutron-capture elements in other ultra-faint dwarf galaxies may imply the existence of additional r-process sites besides the source of r-process elements in Ret II. Galaxies like Ret II may be the original birth sites of r-process enhanced stars now found in the halo. This paper includes data gathered with the 6.5 m Magellan Telescopes located at Las Campanas Observatory, Chile.

The combined impact of vineyard origin and processing winery on the elemental profile of red wines.

Science.gov (United States)

Hopfer, Helene; Nelson, Jenny; Collins, Thomas S; Heymann, Hildegarde; Ebeler, Susan E

2015-04-01

The combined effects of vineyard origin and winery processing have been studied in 65 red wines samples. Grapes originating from five different vineyards within 40 miles of each other were processed in at least two different wineries. Sixty-three different elements were determined with inductively coupled-plasma mass spectrometry (ICP-MS), and wines were classified according to vineyard origin, processing winery, and the combination of both factors. Vineyard origin as well as winery processing have an impact on the elemental composition of wine, but each winery and each vineyard change the composition to a different degree. For some vineyards, wines showed a characteristic elemental pattern, independent of the processing winery, but the same was found for some wineries, with similar elemental pattern for all grapes processed in these wineries, independent of the vineyard origin. Studying the combined effects of grapegrowing and winemaking provides insight into the determination of geographical origin of red wines. Copyright © 2014 Elsevier Ltd. All rights reserved.

A Model of Family Background, Family Process, Youth Self-Control, and Delinquent Behavior in Two-Parent Families

Science.gov (United States)

Jeong, So-Hee; Eamon, Mary Keegan

2009-01-01

Using data from a national sample of two-parent families with 11- and 12-year-old youths (N = 591), we tested a structural model of family background, family process (marital conflict and parenting), youth self-control, and delinquency four years later. Consistent with the conceptual model, marital conflict and youth self-control are directly…

A Latent Profile Analysis of Latino Parenting: The Infusion of Cultural Values on Family Conflict.

Science.gov (United States)

Ayón, Cecilia; Williams, Lela Rankin; Marsiglia, Flavio F; Ayers, Stephanie; Kiehne, Elizabeth

The purpose of the present study was to (a) examine how acculturation and social support inform Latinos' parenting behaviors, controlling for gender and education; (b) describe parenting styles among Latino immigrants while accounting for cultural elements; and (c) test how these parenting styles are associated with family conflict. A 3 step latent profile analysis with the sample ( N = 489) revealed best fit with a 4 profile model ( n = 410) of parenting: family parenting ( n = 268, 65%), child-centered parenting ( n = 68, 17%), moderate parenting ( n = 60, 15%), and disciplinarian parenting ( n = 14, 3%). Parents' gender, acculturation, and social support significantly predicted profile membership. Disciplinarian and moderate parenting were associated with more family conflict. Recommendations include integrating culturally based parenting practices as a critical element to family interventions to minimize conflict and promote positive youth development.

Finite Element Analysis for Bending Process of U-Bending Specimens

Energy Technology Data Exchange (ETDEWEB)

Park, Won Dong; Bahn, Chi Bum [Pusan National University, Busan (Korea, Republic of)

2015-10-15

ASTM G30 suggests that the applied strain can be calculated by dividing thickness by a bend radius. It should be noted, however, that the formula is reliable under an assumption that the ratio of thickness to bend radius is less than 0.2. Typically, to increase the applied stress/strain, the ratio of thickness to bend radius becomes larger than 0.2. This suggests that the estimated strain values by ASTM G30 are not reliable to predict the actual residual strain state of the highly deformed U-bend specimen. For this reason, finite element analysis (FEA) for the bending process of Ubend specimens was conducted by using a commercial finite element analysis software ABAQUS. ver.6.14- 2;2014. From the results of FEA, PWSCC initiation time and U-bend specimen size can be determined exactly. Since local stress and strain have a significant effect on the initiation of PWSCC, it was inappropriate to apply results of ASTM G30 to the PWSCC test directly. According to results of finite element analysis (FEA), elastic relaxation can cause inaccuracy in intended final residual stress. To modify this inaccuracy, additional process reducing the spring back is required. However this additional process also may cause uncertainty of stress/strain state. Therefore, the U-bending specimen size which is not creating uncertainty should be optimized and selected. With the bending radius of 8.3 mm, the thickness of 3 mm and the roller distance of 32.6 mm, calculated maximum stress and strain were 670 MPa and 0.21, respectively.

Process into Products: Supporting Teachers to Engage Parents

Science.gov (United States)

Abel, Yolanda

2014-01-01

This article addresses the need for novice teachers to receive exposure and experiences related to family engagement as part of their academic preparation to better facilitate their actual parent involvement practices. In a graduate-level parent involvement in education course, early childhood educators had an opportunity to engage in a variety of…

Child, parent, and parent-child emotion narratives: implications for developmental psychopathology.

Science.gov (United States)

Oppenheim, David

2006-01-01

Studies using narratives with children and parents offer ways to study affective meaning-making processes that are central in many theories of developmental psychopathology. This paper reviews theory regarding affective meaning making, and argues that narratives are particularly suited to examine such processes. The review of narrative studies and methods is organized into three sections according to the focus on child, parent, and parent-child narratives. Within each focus three levels of analysis are considered: (a) narrative organization and coherence, (b) narrative content, and (c) the behavior/interactions of the narrator(s). The implications of this research for developmental psychopathology and clinical work are discussed with an emphasis on parent-child jointly constructed narratives as the meeting point of individual child and parent narratives.

Data-processing strategies for nano-tomography with elemental specification

Science.gov (United States)

Liu, Yijin; Cats, Korneel H.; Nelson Weker, Johanna; Andrews, Joy C.; Weckhuysen, Bert M.; Pianetta, Piero

2013-10-01

Combining the energy tunability provided by synchrotron X-ray sources with transmission X-ray microscopy, the morphology of materials can be resolved in 3D at spatial resolution down to 30 nm with elemental/chemical specification. In order to study the energy dependence of the absorption coefficient over the investigated volume, the tomographic reconstruction and image registration (before and/or after the tomographic reconstruction) are critical. We show in this paper the comparison of two different data processing strategies and conclude that the signal to noise ratio (S/N) in the final result can be improved via performing tomographic reconstruction prior to the evaluation of energy dependence. Our result echoes the dose fractionation theorem, and is particularly helpful when the element of interest has low concentration.

Analysis of technology and quality control the fuel elements production process

International Nuclear Information System (INIS)

Katanic, J.; Spasic, Z.; Momcilovic, I.

1976-01-01

Recently great attention has been paid at the international level to the analysis of production processes and quality control of fuel elements with the aim to speed up activity of proposing and accepting standards and measurement methods. IAEA also devoted great interest to these problems appealing to more active participation of all users and procedures of fuel elements in a general effort to secure successful work with nuclear plants. For adequate and timely participation in future of the establishment and analysis of general requirements and documentation for the control of purchased or self produced fuel elements in our country, it is necessary to be well informed and to follow this activity at the international level

The parent magma of the Nakhla (SNC) meteorite: Reconciliation of composition estimates from magmatic inclusions and element partitioning

Science.gov (United States)

Treiman, A. H.

1993-01-01

The composition of the parent magma of the Nakhla meteorite was difficult to determine, because it is accumulate rock, enriched in olivine and augite relative to a basalt magma. A parent magma composition is estimated from electron microprobe area analyses of magmatic inclusions in olivine. This composition is consistent with an independent estimate based on the same inclusions, and with chemical equilibria with the cores of Nakhla's augites. This composition reconciles most of the previous estimates of Nakhla's magma composition, and obviates the need for complex magmatic processes. Inconsistency between this composition and those calculated previously suggests that magma flowed through and crystallized into Nakhla as it cooled.

Finite element modelling of creep process - steady state stresses and strains

Directory of Open Access Journals (Sweden)

Sedmak Aleksandar S.

2014-01-01

Full Text Available Finite element modelling of steady state creep process has been described. Using an analogy of visco-plastic problem with a described procedure, the finite element method has been used to calculate steady state stresses and strains in 2D problems. An example of application of such a procedure have been presented, using real life problem - cylindrical pipe with longitudinal crack at high temperature, under internal pressure, and estimating its residual life, based on the C*integral evaluation.

Novel approach to parental permission and child assent for research: improving comprehension.

Science.gov (United States)

O'Lonergan, Theresa A; Forster-Harwood, Jeri E

2011-05-01

The aim of this research was to test a multimedia permission/assent (P/A) process. The overall hypothesis was that children and their parents exposed to a multimedia P/A process would have better comprehension compared with those exposed to a text-based process. Traditional and multimedia P/A processes were created by using an innovative learning-objective approach. A total of 194 parent-child dyads (children aged 11-14 years) were enrolled: 24 dyads in a prestudy testing P/A components for preference and effect on comprehension and 170 dyads in a randomized trial of a multimedia or paper P/A process for a hypothetical study. Participants were predominantly white and were from a metropolitan area served by a tertiary care pediatric hospital and outpatient facility. Comprehension of 8 essential elements of the P/A process was assessed. The majority of prestudy subjects preferred the video version of the dual-energy radiograph absorptiometry description over the animated and paper versions combined (41 of 48 [85%]; P better overall comprehension compared with the paper P/A process (P = .0009), and there were highly significant differences in understanding of study procedures (P = .0002) and risks (P multimedia group had significantly better overall comprehension (P = .03). Multimedia approaches to the research P/A process may improve overall understanding of research participation for children and parents. Improved understanding of study-specific research components (rather than research rights) may improve overall comprehension.

Dynamic Training Elements in a Circuit Theory Course to Implement a Self-Directed Learning Process

Science.gov (United States)

Krouk, B. I.; Zhuravleva, O. B.

2009-01-01

This paper reports on the implementation of a self-directed learning process in a circuit theory course, incorporating dynamic training elements which were designed on the basis of a cybernetic model of cognitive process management. These elements are centrally linked in a dynamic learning frame, created on the monitor screen, which displays the…

Off-diagonal helicity density matrix elements for vector mesons produced in polarized e+e- processes

International Nuclear Information System (INIS)

Anselmino, M.; Murgia, F.; Quintairos, P.

1999-04-01

Final state q q-bar interactions give origin to non zero values of the off-diagonal element ρ 1,-1 of the helicity density matrix of vector mesons produced in e + e - annihilations, as confirmed by recent OPAL data on φ, D * and K * 's. New predictions are given for ρ 1,-1 of several mesons produced at large x E and small p T - i.e. collinear with the parent jet - in the annihilation of polarized 3 + and 3 - , the results depend strongly on the elementary dynamics and allow further non trivial tests of the standard model. (author)

Parenting and Child Development in Adoptive Families: Does Parental Sexual Orientation Matter?

OpenAIRE

Farr, Rachel H.; Forssell, Stephen L.; Patterson, Charlotte J.

2010-01-01

This study, funded by Williams Institute, investigated child development and parenting in 106 families headed by 27 lesbian, 29 gay, and 50 heterosexual couples with young adopted children. Parents and teachers reported that, on average, children were developing in typical ways. Measures of children’s adjustment, parenting approaches, parenting stress, and couple relationship adjustment were not significantly associated with parental sexual orientation. However, several family process variabl...

Factors Influencing the Decision-Making Process and Long-Term Interpersonal Outcomes for Parents Who Undergo Preimplantation Genetic Diagnosis for Fanconi Anemia: a Qualitative Investigation.

Science.gov (United States)

Haude, K; McCarthy Veach, P; LeRoy, B; Zierhut, H

2017-06-01

Fanconi anemia (FA) is characterized by congenital malformations, progressive bone marrow failure, and predisposition to malignancy. Hematopoietic stem cell transplantation is used to treat FA, and best results are attained with sibling donors who are human leukocyte antigen (HLA) identical matches. Preimplantation genetic diagnosis (PGD) offers parents of an affected child the opportunity to have an unaffected child who is an HLA match. While some research has investigated parents' experiences during the PGD process, no published studies specifically address factors influencing their decision-making process and long-term interpersonal outcomes. The aims of this study are to: (1) examine parents' expectations and the influence of media, bioethics, and religion on their decision to undergo PGD; (2) examine parents' social support and emotional experiences during their PGD process; and (3) characterize long-term effects of PGD on relationship dynamics (partner, family, friends), others' attitudes, and parental regret. Nine parents participated in semi-structured interviews. Thematic analysis revealed their decision to use PGD was variously influenced by media, bioethics, and religion, in particular, affecting parents' initial confidence levels. Moreover, the PGD process was emotionally complex, with parents desiring varying amounts and types of support from different sources at different times. Parents reported others' attitudes towards them were similar or no different than before PGD. Parental regret regarding PGD was negligible. Results of this study will promote optimization of long-term care for FA families.

Design Process for Integrated Concepts with Responsive Building Elements

DEFF Research Database (Denmark)

Aa, Van der A.; Heiselberg, Per

2008-01-01

An integrated building concept is a prerequisite to come to an energy efficient building with a good and healthy IAQ indoor comfort. A design process that defines the targets and boundary conditions in the very first stage of the design and guarantees them until the building is finished and used...... is needed. The hard question is however: how to make the right choice of the combination of individual measures from building components and building services elements. Within the framework of IEA-ECBCS Annex 44 research has been conducted about the design process for integrated building concepts...

Effects of Process Parameters on Copper Powder Compaction Process Using Multi-Particle Finite Element Method

Science.gov (United States)

Güner, F.; Sofuoğlu, H.

2018-01-01

Powder metallurgy (PM) has been widely used in several industries; especially automotive and aerospace industries and powder metallurgy products grow up every year. The mechanical properties of the final product that is obtained by cold compaction and sintering in powder metallurgy are closely related to the final relative density of the process. The distribution of the relative density in the die is affected by parameters such as compaction velocity, friction coefficient and temperature. Moreover, most of the numerical studies utilizing finite element approaches treat the examined environment as a continuous media with uniformly homogeneous porosity whereas Multi-Particle Finite Element Method (MPFEM) treats every particles as an individual body. In MPFEM, each of the particles can be defined as an elastic- plastic deformable body, so the interactions of the particles with each other and the die wall can be investigated. In this study, each particle was modelled and analyzed as individual deformable body with 3D tetrahedral elements by using MPFEM approach. This study, therefore, was performed to investigate the effects of different temperatures and compaction velocities on stress distribution and deformations of copper powders of 200 µm-diameter in compaction process. Furthermore, 3-D MPFEM model utilized von Mises material model and constant coefficient of friction of μ=0.05. In addition to MPFEM approach, continuum modelling approach was also performed for comparison purposes.

Process Evaluation of a Parenting Program for Low-Income Families in South Africa

Science.gov (United States)

Lachman, Jamie M.; Kelly, Jane; Cluver, Lucie; Ward, Catherine L.; Hutchings, Judy; Gardner, Frances

2018-01-01

Objective: This mixed-methods process evaluation examined the feasibility of a parenting program delivered by community facilitators to reduce the risk of child maltreatment in low-income families with children aged 3-8 years in Cape Town, South Africa (N = 68). Method: Quantitative measures included attendance registers, fidelity checklists,…

A pedagogical framework for facilitating parents' learning in nurse-parent partnership.

Science.gov (United States)

Hopwood, Nick; Clerke, Teena; Nguyen, Anne

2018-04-01

Nursing work increasingly demands forms of expertise that complement specialist knowledge. In child and family nursing, this need arises when nurses work in partnership with parents of young children at risk. Partnership means working with parents in respectful, negotiated and empowering ways. Existing partnership literature emphasises communicative and relational skills, but this paper focuses on nurses' capacities to facilitate parents' learning. Referring to data from home visiting, day-stay and specialist toddler clinic services in Sydney, a pedagogical framework is presented. Analysis shows how nurses notice aspects of children, parents and parent-child interactions as a catalyst for building on parents' strengths, enhancing guided chance or challenging unhelpful constructs. Prior research shows the latter can be a sticking point in partnership, but this paper reveals diverse ways in which challenges are folded into learning process that position parents as agents of positive change. Noticing is dependent on embodied and communicative expertise, conceptualised in terms of sensory and reported channels. The framework offers a new view of partnership as mind-expanding for the parent and specifies the nurse's role in facilitating this process. © 2017 John Wiley & Sons Ltd.

Early Parenting Moderates the Association between Parental Depression and Neural Reactivity to Rewards and Losses in Offspring.

Science.gov (United States)

Kujawa, Autumn; Proudfit, Greg H; Laptook, Rebecca; Klein, Daniel N

2015-07-01

Children of parents with depression exhibit neural abnormalities in reward processing. Examining contributions of parenting could provide insight into the development of these abnormalities and to the etiology of depression. We evaluated whether early parenting moderates the effects of parental depression on a neural measure of reward and loss processing in mid-late childhood. Parenting was assessed when children were preschoolers. At age nine, children completed an event-related potential assessment and the feedback negativity (FN) was measured following rewards and losses ( N =344). Maternal authoritative parenting moderated the effect of maternal depression; among offspring of mothers with histories of depression, low authoritative parenting predicted a blunted FN. Observed maternal positive parenting interacted with paternal depression in a comparable manner, indicating that maternal parenting may buffer the effects of paternal depression. Early parenting may be important in shaping the neural systems involved in reward processing among children at high risk for depression.

Towards a Model of Contemporary Parenting: The Parenting Behaviours and Dimensions Questionnaire

OpenAIRE

Reid, Carly A. Y.; Roberts, Lynne D.; Roberts, Clare M.; Piek, Jan P.

2015-01-01

The assessment of parenting has been problematic due to theoretical disagreement, concerns over generalisability, and problems with the psychometric properties of current parenting measures. The aim of this study was to develop a comprehensive, psychometrically sound self-report parenting measure for use with parents of preadolescent children, and to use this empirical scale development process to identify the core dimensions of contemporary parenting behaviour. Following item generation and ...

Teacher-parent partnership as a precondition for inclusion in education

Directory of Open Access Journals (Sweden)

Stanković-Đorđević Mirjana M.

2013-01-01

Full Text Available Inclusion in education implies openness and readiness of all social elements to provide every child with the best possible education either within a school environment or in a class which a child would attend at any rate. By approaching each child individually teachers should organise the activities for their students bearing in mind the onward changes of the entire personality of a child. Modern educational practice is based on humanist and constructivist standpoints - a child is in the centre of interest and it should build and construct its own knowledge on its own, while the exchange of information should go both from professionals and parents towards a child and vice versa. Global changes on a family level caused by a birth of a child with developmental disability represent the changes in a family identity as well as the changes in integration processes within the family. The role of a teacher is extremely significant in the process of the family adjustment as well as in the process of a continuous support which is necessary for all families with children with developmental disabilities throughout their lives. The basis of the relationship between a school and parents should be the perception of parents as partners - the interests, priorities and concerns of a family should be in the focus of both theory and practice in schools. The common problem of parents and teachers is the problem of allocating attention from children's limitations and difficulties to their potentials and possibilities, from academic achievements to social and affective outcomes and life skills development.

Application of the dual reciprocity boundary element method for numerical modelling of solidification process

Directory of Open Access Journals (Sweden)

E. Majchrzak

2008-12-01

Full Text Available The dual reciprocity boundary element method is applied for numerical modelling of solidification process. This variant of the BEM is connected with the transformation of the domain integral to the boundary integrals. In the paper the details of the dual reciprocity boundary element method are presented and the usefulness of this approach to solidification process modelling is demonstrated. In the final part of the paper the examples of computations are shown.

Possibilities of Particle Finite Element Methods in Industrial Forming Processes

Science.gov (United States)

Oliver, J.; Cante, J. C.; Weyler, R.; Hernandez, J.

2007-04-01

The work investigates the possibilities offered by the particle finite element method (PFEM) in the simulation of forming problems involving large deformations, multiple contacts, and new boundaries generation. The description of the most distinguishing aspects of the PFEM, and its application to simulation of representative forming processes, illustrate the proposed methodology.

Struggling with one’s own parenting after an upbringing with substance abusing parents

Science.gov (United States)

Tedgård, Eva; Råstam, Maria; Wirtberg, Ingegerd

2018-01-01

ABSTRACT Aim: To add to our knowledge concerning the key elements involved in the individual’s experience of growing up with substance abusing parents and the resulting challenges this involved for their own parenthood. Methods: In-depth interviews were conducted with 19 parents who had participated in a mental health intervention programme. All had experienced substance abusing parents in their family of origin. Qualitative content analysis was used to analyse the data. They also completed a self-report questionnaire assessing their attachment style. Result: Participants reported a high incidence of emotional abuse and neglect coupled with inadequate support from the community. Their own parental role was influenced by high parental stress and a majority had an insecure attachment style. Conclusions: All participants had experienced a very difficult childhood which was reinforced by the fact that they received little support from society. Their childhood experience and the resulting challenges that this created in their own parenting role could negatively influence their own children’s ability to form a secure psychosocial development. It is therefore important to develop instruments that can help to identify children who were raised in misuse families in order to accommodate the transgenerational effects of growing up with substance abusing parents. PMID:29482480

Hispanic parents' experiences of the process of caring for a child undergoing routine surgery: a focus on pain and pain management.

Science.gov (United States)

Olshansky, Ellen; Zender, Robynn; Kain, Zeev N; Rosales, Alvina; Guadarrama, Josue; Fortier, Michelle A

2015-07-01

The purpose was to understand the processes Hispanic parents undergo in managing postoperative care of children after routine surgical procedures. Sixty parents of children undergoing outpatient surgery were interviewed. Data were analyzed using grounded theory methodology. Parents experienced five subprocesses that comprised the overall process of caring for a child after routine surgery: (a) becoming informed; (b) preparing; (c) seeking reassurance; (d) communicating with one's child; and (e) making pain management decisions. Addressing cultural factors related to pain management in underserved families may instill greater confidence in managing pain. © 2015, Wiley Periodicals, Inc.

ENRICHMENT OF r-PROCESS ELEMENTS IN DWARF SPHEROIDAL GALAXIES IN CHEMO-DYNAMICAL EVOLUTION MODEL

Energy Technology Data Exchange (ETDEWEB)

Hirai, Yutaka; Kajino, Toshitaka [Department of Astronomy, Graduate School of Science, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan); Ishimaru, Yuhri [Department of Material Science,International Christian University, 3-10-2 Osawa, Mitaka, Tokyo 181-8585 (Japan); Saitoh, Takayuki R. [Earth-Life Science Institute, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551 (Japan); Fujii, Michiko S.; Hidaka, Jun, E-mail: yutaka.hirai@nao.ac.jp [Division of Theoretical Astronomy, National Astronomical Observatory of Japan, 2-21-1 Osawa Mitaka, Tokyo 181-8588 (Japan)

2015-11-20

The rapid neutron-capture process (r-process) is a major process for the synthesis of elements heavier than iron-peak elements, but the astrophysical site(s) of the r-process has not yet been identified. Neutron star mergers (NSMs) are suggested to be a major r-process site according to nucleosynthesis studies. Previous chemical evolution studies, however, required unlikely short merger times of NSMs to reproduce the observed large star-to-star scatters in the abundance ratios of r-process elements to iron: the [Eu/Fe] of extremely metal-poor stars in the Milky Way (MW) halo. This problem can be solved by considering chemical evolution in dwarf spheroidal galaxies (dSphs), which would be building blocks of the MW and have lower star formation efficiencies than the MW halo. We demonstrate the enrichment of r-process elements in dSphs by NSMs using an N-body/smoothed particle hydrodynamics code. Our high-resolution model reproduces the observed [Eu/Fe] due to NSMs with a merger time of 100 Myr when the effect of metal mixing is taken into account. This is because metallicity is not correlated with time ∼300 Myr from the start of the simulation due to the low star formation efficiency in dSphs. We also confirm that this model is consistent with observed properties of dSphs such as radial profiles and metallicity distribution. The merger time and the Galactic rate of NSMs are suggested to be ≲300 Myr and ∼10{sup −4} year{sup −1}, respectively, which are consistent with the values suggested by population synthesis and nucleosynthesis studies. This study supports the argument that NSMs are the major astrophysical site of the r-process.

Optimization of the flexible mould process for the production of double-curved concrete elements

NARCIS (Netherlands)

Schipper, H.R.; Grunewald, S.; Eigenraam, P.; Raghunath, P.; Kok, M.

2014-01-01

Free-form buildings tend to be expensive. By optimizing the production process, economical and wellperforming concrete structures and elements can be manufactured. In this paper, an innovative method is presented that allows producing highly accurate double curved-elements without the need for

Early Parenting Moderates the Association between Parental Depression and Neural Reactivity to Rewards and Losses in Offspring

OpenAIRE

Kujawa, Autumn; Proudfit, Greg H.; Laptook, Rebecca; Klein, Daniel N.

2014-01-01

Children of parents with depression exhibit neural abnormalities in reward processing. Examining contributions of parenting could provide insight into the development of these abnormalities and to the etiology of depression. We evaluated whether early parenting moderates the effects of parental depression on a neural measure of reward and loss processing in mid-late childhood. Parenting was assessed when children were preschoolers. At age nine, children completed an event-related potential as...

The adolescent's experience of authority: a comparison between adolescents living at home with their parents and adolescents in substitute care.

OpenAIRE

2008-01-01

M.Ed. The way in which an adolescent experiences authority is an important element of the educational process. Without authority, it can be said, there is no education. But adolescents’ experience of authority is something that is developed outside the classroom, primarily during their interactions with parents. This study explores how South African adolescents experience authority, but focused on the effect of living in institutions, and not at home with their parents. A 47-item questionn...

Towards a model of contemporary parenting: the parenting behaviours and dimensions questionnaire.

Directory of Open Access Journals (Sweden)

Carly A Y Reid

Full Text Available The assessment of parenting has been problematic due to theoretical disagreement, concerns over generalisability, and problems with the psychometric properties of current parenting measures. The aim of this study was to develop a comprehensive, psychometrically sound self-report parenting measure for use with parents of preadolescent children, and to use this empirical scale development process to identify the core dimensions of contemporary parenting behaviour. Following item generation and parent review, 846 parents completed an online survey comprising 116 parenting items. Exploratory and confirmatory factor analyses supported a six factor parenting model, comprising Emotional Warmth, Punitive Discipline, Anxious Intrusiveness, Autonomy Support, Permissive Discipline and Democratic Discipline. This measure will allow for the comprehensive and consistent assessment of parenting in future research and practice.

Towards a model of contemporary parenting: the parenting behaviours and dimensions questionnaire.

Science.gov (United States)

Reid, Carly A Y; Roberts, Lynne D; Roberts, Clare M; Piek, Jan P

2015-01-01

The assessment of parenting has been problematic due to theoretical disagreement, concerns over generalisability, and problems with the psychometric properties of current parenting measures. The aim of this study was to develop a comprehensive, psychometrically sound self-report parenting measure for use with parents of preadolescent children, and to use this empirical scale development process to identify the core dimensions of contemporary parenting behaviour. Following item generation and parent review, 846 parents completed an online survey comprising 116 parenting items. Exploratory and confirmatory factor analyses supported a six factor parenting model, comprising Emotional Warmth, Punitive Discipline, Anxious Intrusiveness, Autonomy Support, Permissive Discipline and Democratic Discipline. This measure will allow for the comprehensive and consistent assessment of parenting in future research and practice.

Heterogeneity and loss of soil nutrient elements under aeolian processes in the Otindag Desert, China

Science.gov (United States)

Li, Danfeng; Wang, Xunming; Lou, Junpeng; Liu, Wenbin; Li, Hui; Ma, Wenyong; Jiao, Linlin

2018-02-01

The heterogeneity of the composition of surface soils that are affected by aeolian processes plays important roles in ecological evolution and the occurrence of aeolian desertification in fragile ecological zones, but the associated mechanisms are poorly understood. Using field investigation, wind tunnel experiments, and particle size and element analyses, we discuss the variation in the nutrient elements of surface soils that forms in the presence of aeolian processes of four vegetation species (Caragana microphylla Lam, Artemisia frigida Willd. Sp. Pl., Leymus chinensis (Trin.) Tzvel. and Stipa grandis P. Smirn) growing in the Otindag Desert, China. These four vegetation communities correspond to increasing degrees of degradation. A total of 40 macro elements, trace elements, and oxides were measured in the surface soil and in wind-transported samples. The results showed that under the different degradation stages, the compositions and concentrations of nutrients in surface soils differed for the four vegetation species. Aeolian processes may cause higher heterogeneity and higher loss of soil nutrient elements for the communities of Artemisia frigida Willd. Sp. Pl., Leymus chinensis (Trin.) Tzvel, and Stipa grandis P. Smirn than for the Caragana microphylla Lam community. There was remarkable variation in the loss of nutrients under different aeolian transportation processes. Over the past several decades, the highest loss of soil elements occurred in the 1970s, whereas the loss from 2011 to the present was generally 4.0% of that in the 1970s. These results indicate that the evident decrease in nutrient loss has played an important role in the rehabilitation that has occurred in the region recently.

Parental Cognitive Errors Mediate Parental Psychopathology and Ratings of Child Inattention.

Science.gov (United States)

Haack, Lauren M; Jiang, Yuan; Delucchi, Kevin; Kaiser, Nina; McBurnett, Keith; Hinshaw, Stephen; Pfiffner, Linda

2017-09-01

We investigate the Depression-Distortion Hypothesis in a sample of 199 school-aged children with ADHD-Predominantly Inattentive presentation (ADHD-I) by examining relations and cross-sectional mediational pathways between parental characteristics (i.e., levels of parental depressive and ADHD symptoms) and parental ratings of child problem behavior (inattention, sluggish cognitive tempo, and functional impairment) via parental cognitive errors. Results demonstrated a positive association between parental factors and parental ratings of inattention, as well as a mediational pathway between parental depressive and ADHD symptoms and parental ratings of inattention via parental cognitive errors. Specifically, higher levels of parental depressive and ADHD symptoms predicted higher levels of cognitive errors, which in turn predicted higher parental ratings of inattention. Findings provide evidence for core tenets of the Depression-Distortion Hypothesis, which state that parents with high rates of psychopathology hold negative schemas for their child's behavior and subsequently, report their child's behavior as more severe. © 2016 Family Process Institute.

How parents process child health and nutrition information: A grounded theory model.

Science.gov (United States)

Lovell, Jennifer L

2016-02-01

The aim of the present study was to investigate low-income parents' experiences receiving, making meaning of, and applying sociocultural messages about childhood health and nutrition. Semi-structured interviews were conducted with parents from 16 low-income Early Head Start families. Verbatim interview transcripts, observations, field notes, documentary evidence, and follow-up participant checks were used during grounded theory analysis of the data. Data yielded a potential theoretical model of parental movement toward action involving (a) the culture and context influencing parents, (b) parents' sources of social and cultural messages, (c) parental values and engagement, (d) parental motivation for action, (e) intervening conditions impacting motivation and application, and (f) parent action taken on the individual and social levels. Parent characteristics greatly impacted the ways in which parents understood and applied health and nutrition information. Among other implications, it is recommended that educators and providers focus on a parent's beliefs, values, and cultural preferences regarding food and health behaviors as well as his/her personal/family definition of "health" when framing recommendations and developing interventions. Copyright © 2015 Elsevier Ltd. All rights reserved.

Parenting while Being Homeless

Science.gov (United States)

Swick, Kevin J.; Williams, Reginald; Fields, Evelyn

2014-01-01

This article explores the dynamics of parenting while being in a homeless context. The mosaic of stressors involved in this homeless parenting process are explicated and discussed. In addition, resources and strategies that may support parenting are presented and discussed.

The Broader Cognitive Phenotype of Autism in Parents: How Specific Is the Tendency for Local Processing and Executive Dysfunction?

Science.gov (United States)

Bolte, Sven; Poustka, Fritz

2006-01-01

Background: The objective of this study was to investigate the tendency for local processing style ("weak central coherence") and executive dysfunction in parents of subjects with an autism spectrum disorder (ASD) compared with parents of individuals with early onset schizophrenia (EOS) and mental retardation (MR). Method: Sixty-two…

Breaking bad news--parents' experience of learning that their child has leukaemia.

LENUS (Irish Health Repository)

Oshea, J

2012-02-03

This study aimed to seek parents\\' experiences of how they learned their child had leukaemia and therefore identify ways of improving this process. To achieve this task a questionnaire was designed to ask parents about specific elements of the initial interview and give them opportunity to add their thoughts and feelings on the subject. All children with a diagnosis of leukaemia over an eighteen-year period were identified and parents of those children still alive were invited to partake in the study. 49 out of 50 families agreed to participate of which 35 (72%) returned completed questionnaires. The majority 29 (83%) expressed overall satisfaction. Their replies confirmed some findings of previous studies, and also offered some new insights. Examples of new findings or expansion on previous findings include observations on the presence of young children at the initial interview; the importance of the language used in conveying the diagnosis and prognostic information, and a preference for actuarial terms when discussing prognosis. Telling parents their child has leukaemia is a challenging and important task. The experience of parents gives us valuable insights into our own communication skills and highlights areas of possible improvement in this difficult area.

Adoptive parenting.

Science.gov (United States)

Grotevant, Harold D; Lo, Albert Yh

2017-06-01

Challenges in adoptive parenting continue to emerge as adoption policies and practices evolve. We review three areas of research in adoptive parenting that reflect contemporary shifts in adoption. First, we highlight recent findings concerning openness in adoption contact arrangements, or contact between a child's families of birth and rearing. Second, we examine research regarding racial and cultural socialization in transracial and international adoptions. Finally, we review investigations of parenting experiences of lesbian and gay adoptive parents. Overall, parenting processes (e.g., supportive vs. problematic family interaction) are better predictors of child adjustment than are group differences (e.g., open vs. closed adoptions; adoption by heterosexual vs. same-sex parents). The distinctive needs of adopted children call for preparation of adoption-competent mental health, casework, education, and health care professionals. Copyright © 2017 Elsevier Ltd. All rights reserved.

Finite Element Simulation of Sheet Metal Forming Process Using Local Interpolation for Tool Surfaces

International Nuclear Information System (INIS)

Hama, Takayuki; Takuda, Hirohiko; Takamura, Masato; Makinouchi, Akitake; Teodosiu, Cristian

2005-01-01

Treatment of contact between a sheet and tools is one of the most difficult problems to deal with in finite-element simulations of sheet forming processes. In order to obtain more accurate tool models without increasing the number of elements, this paper describes a new formulation for contact problems using interpolation proposed by Nagata for tool surfaces. A contact search algorithm between sheet nodes and the interpolated tool surfaces was developed and was introduced into the static-explicit elastoplastic finite-element method code STAMP3D. Simulations of a square cup deep drawing process with a very coarsely discretized punch model were carried out. The simulated results showed that the proposed algorithm gave the proper drawn shape, demonstrating the validity of the proposed algorithm

Elemental, isotopic, and structural changes in Tagish Lake insoluble organic matter produced by parent body processes

Science.gov (United States)

Alexander, C. M. O'd.; Cody, G. D.; Kebukawa, Y.; Bowden, R.; Fogel, M. L.; Kilcoyne, A. L. D.; Nittler, L. R.; Herd, C. D. K.

2014-04-01

Here, we present the results of a multitechnique study of the bulk properties of insoluble organic material (IOM) from the Tagish Lake meteorite, including four lithologies that have undergone different degrees of aqueous alteration. The IOM C contents of all four lithologies are very uniform and comprise about half the bulk C and N contents of the lithologies. However, the bulk IOM elemental and isotopic compositions vary significantly. In particular, there is a correlated decrease in bulk IOM H/C ratios and δD values with increasing degree of alteration—the IOM in the least altered lithology is intermediate between CM and CR IOM, while that in the more altered lithologies resembles the very aromatic IOM in mildly metamorphosed CV and CO chondrites, and heated CMs. Nuclear magnetic resonance (NMR) spectroscopy, C X-ray absorption near-edge (XANES), and Fourier transform infrared (FTIR) spectroscopy confirm and quantitate this transformation from CR-like, relatively aliphatic IOM functional group chemistry to a highly aromatic one. The transformation is almost certainly thermally driven, and probably occurred under hydrothermal conditions. The lack of a paramagnetic shift in 13C NMR spectra and 1s-σ* exciton in the C-XANES spectra, both typically seen in metamorphosed chondrites, shows that the temperatures were lower and/or the timescales were shorter than experienced by even the least metamorphosed type 3 chondrites. Two endmember models were considered to quantitatively account for the changes in IOM functional group chemistry, but the one in which the transformations involved quantitative conversion of aliphatic material to aromatic material was the more successful. It seems likely that similar processes were involved in producing the diversity of IOM compositions and functional group chemistries among CR, CM, and CI chondrites. If correct, CRs experienced the lowest temperatures, while CM and CI chondrites experienced similar more elevated temperatures

Impact of the Diagnostic Process on Parents of Infants and Preschool Children. Final Report.

Science.gov (United States)

Tice, Terrence N.; Hanson, Janice L.

In an investigation of the impact of the psychological/educational diagnostic process on the parents of young children at risk for developmental delay, 18 families completed questionnaires and were interviewed concerning their child's evaluation. Transcribed interviews conducted 1-2 weeks after the evaluation and 4 months after the evaluations…

Mobility of rare earth element in hydrothermal process and weathering product: a review

Science.gov (United States)

Lintjewas, L.; Setiawan, I.

2018-02-01

The Rare Earth Element (REE), consists of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Lu, Ho, Er, Tm, Yb, are important elements to be used as raw materials of advanced technology such as semiconductors, magnets, and lasers. The research of REE in Indonesia has not been done. Several researches were conducted on granitic rocks and weathering product such as Bangka, Sibolga, West Kalimantan, West Sulawesi and Papua. REE can be formed by hydrothermal processes such as Bayan Obo, South China. The REE study on active hydrothermal system (geothermal) in this case also has the potential to produce mineral deposits. The purpose of this review paper is to know the mobility of REE on hydrothermal process and weathering products. Mobility of REE in the hydrothermal process can change the distribution patterns and REE content such as Ce, Eu, La, Lu, Nd, Sm, and Y. Another process besides the hydrothermal is weathering process. REE mobility is influenced by weathering products, where the REE will experience residual and secondary enrichment processes in heavier minerals.

Effect of microbial processes on transuranium elements behaviour in soil, plants and animal organism

International Nuclear Information System (INIS)

Uajldung, R.Eh.; Garlend, T.P.

1985-01-01

Results of preliminary studies discussed in the present paper bring about the supposition that concentration and chemical from of an element in a plant play an essential role in variation of its availability for animals consuming plants. That is why any assessment of long-term behaviour of transuranium elements in terrestrialenvironment should be based on determination of factors affecting solubility and forms of soluble compounds in soil. These factors include concentration and chemical form of the element migrating to soil; effect of the properties of soil on element distribution between solid and liquid phases; effect soil processes on kinetics of sorption reactions, concentration of transuranium elements, forms of soluble and non-soluble chemical compounds

Process development for elemental recovery from PGM tailings by thermochemical treatment: Preliminary major element extraction studies using ammonium sulphate as extracting agent.

Science.gov (United States)

Mohamed, Sameera; van der Merwe, Elizabet M; Altermann, Wladyslaw; Doucet, Frédéric J

2016-04-01

Mine tailings can represent untapped secondary resources of non-ferrous, ferrous, precious, rare and trace metals. Continuous research is conducted to identify opportunities for the utilisation of these materials. This preliminary study investigated the possibility of extracting major elements from South African tailings associated with the mining of Platinum Group Metals (PGM) at the Two Rivers mine operations. These PGM tailings typically contain four major elements (11% Al2O3; 12% MgO; 22% Fe2O3; 34% Cr2O3), with lesser amounts of SiO2 (18%) and CaO (2%). Extraction was achieved via thermochemical treatment followed by aqueous dissolution, as an alternative to conventional hydrometallurgical processes. The thermochemical treatment step used ammonium sulphate, a widely available, low-cost, recyclable chemical agent. Quantification of the efficiency of the thermochemical process required the development and optimisation of the dissolution technique. Dissolution in water promoted the formation of secondary iron precipitates, which could be prevented by leaching thermochemically-treated tailings in 0.6M HNO3 solution. The best extraction efficiencies were achieved for aluminium (ca. 60%) and calcium (ca. 80%). 35% iron and 32% silicon were also extracted, alongside chromium (27%) and magnesium (25%). Thermochemical treatment using ammonium sulphate may therefore represent a promising technology for extracting valuable elements from PGM tailings, which could be subsequently converted to value-added products. However, it is not element-selective, and major elements were found to compete with the reagent to form water-soluble sulphate-metal species. Further development of this integrated process, which aims at achieving the full potential of utilisation of PGM tailings, is currently underway. Copyright © 2016 Elsevier Ltd. All rights reserved.

Parental emotional competence and parenting in low-income families with adolescents.

Science.gov (United States)

Kliewer, Wendy; Borre, Alicia; Wright, Anna W; Jäggi, Lena; Drazdowski, Tess; Zaharakis, Nikola

2016-02-01

Ample research has demonstrated that alexithymia, which is characterized by difficulty processing emotions, is associated with disruptions in parenting infants and toddlers. Individuals suffering from alexithymia have among other negative outcomes difficulty building and maintaining interpersonal relationships. Research on emotional expression and recognition has documented the importance of these competencies for the quality of the parent-child relationship and for skills critical for parents of adolescents, such as effective monitoring. However, literature linking parental alexithymia to parenting behaviors and related constructs during adolescents is lacking. The present study closes this gap by examining how mothers' (M age = 39.42 years, SD = 7.62; Range = 23-67) alexithymia affects parent-reported behaviors of solicitation and control, as well as youths' (53.6% female; M age = 12.13 years, SD = 1.62; Range = 9-16) reported disclosure and felt acceptance by their mothers among a sample of 358 primarily urban, African American families. Structural equation models (SEM) revealed that mothers' alexithymia was prospectively related to less parental solicitation 2 years later for both males and females, and to lower levels of felt acceptance for males. Multiple group analyses revealed that these models fits equally well for younger and older youth. Contrary to hypotheses, alexithymia was not related to control or to disclosure. Taken together, these findings indicate that parents' difficulty in processing emotions contributes to parenting beyond early childhood. (c) 2016 APA, all rights reserved).

From thought to action: young parents' reasons for participation in parenting support groups at child welfare centers.

Science.gov (United States)

Hjelte, Jan; Sjöberg, Magdalena; Westerberg, Kristina; Hyvönen, Ulf

2015-01-01

In this article the focus is on young parents' engagement process in relation to participation in parenting support groups carried out at child welfare centers. This qualitative study focuses not only on young parents' reasons for participating or not participating in parenting support groups during different phases in their engagement process, but also on examining the circumstances that may contribute to such changes. The results show that these reasons can be divided into four categories: the staff, other participants, the social network, and practical circumstances. It also appears that these reasons change between different phases of their engagement process. Primarily three different circumstances contributed to variation in parents' reasons: difficulty in predicting the value of participation, increased closeness in relationships with staff and other parents, and the specific life phase in which young parents find themselves. The results have important implications for policy makers and practitioners in their work in formulating and updating parenting support; they also indicate what may be important to focus on in the recruitment of young parents, and also what may be crucial in regard to them completing their engagement in parent support groups.

Incidence of Parental Support and Pressure on Their Children's Motivational Processes towards Sport Practice Regarding Gender.

Science.gov (United States)

Amado, Diana; Sánchez-Oliva, David; González-Ponce, Inmaculada; Pulido-González, Juan José; Sánchez-Miguel, Pedro Antonio

2015-01-01

Grounded in Self-Determination Theory, structural equation modeling (SEM) with the aim of examining how parental support/pressure could influence their children´s motivational processes in sport was conducted, as well as the models´ differences in operability regarding gender. The sample size was 321 children ranging in age from 10 to 16 years old who were athletes from Extremadura, and 321 parents (included only the father or mother more involved with the sport of his or her child). 175 participants were male and 146 were female from individual (n = 130), and team sports (n=191). A questionnaire was conducted to assess parental perception of support/pressure and another questionnaire was conducted to measure satisfaction of basic psychological needs, type of motivation and enjoyment/boredom showed by their children towards sport practice. Results revealed that parental pressure negatively predicted satisfaction of the basic psychological needs. It also emerged as a strong positive predictor of intrinsic motivation and negative predictor of amotivation. Moreover, intrinsic motivation emerged as positive predictor of enjoyment and a negative predictor of boredom, whereas amotivation positively predicted boredom and negatively predicted enjoyment. Furthermore, results showed there were mean differences by gender: male athletes perceived greater parental pressure. Hence, it is necessary to decrease parental pressure towards their children in sport, with the aim of making them more motivated and enjoy, promoting positive consequences.

Incidence of Parental Support and Pressure on Their Children's Motivational Processes towards Sport Practice Regarding Gender.

Directory of Open Access Journals (Sweden)

Diana Amado

Full Text Available Grounded in Self-Determination Theory, structural equation modeling (SEM with the aim of examining how parental support/pressure could influence their children´s motivational processes in sport was conducted, as well as the models´ differences in operability regarding gender. The sample size was 321 children ranging in age from 10 to 16 years old who were athletes from Extremadura, and 321 parents (included only the father or mother more involved with the sport of his or her child. 175 participants were male and 146 were female from individual (n = 130, and team sports (n=191. A questionnaire was conducted to assess parental perception of support/pressure and another questionnaire was conducted to measure satisfaction of basic psychological needs, type of motivation and enjoyment/boredom showed by their children towards sport practice. Results revealed that parental pressure negatively predicted satisfaction of the basic psychological needs. It also emerged as a strong positive predictor of intrinsic motivation and negative predictor of amotivation. Moreover, intrinsic motivation emerged as positive predictor of enjoyment and a negative predictor of boredom, whereas amotivation positively predicted boredom and negatively predicted enjoyment. Furthermore, results showed there were mean differences by gender: male athletes perceived greater parental pressure. Hence, it is necessary to decrease parental pressure towards their children in sport, with the aim of making them more motivated and enjoy, promoting positive consequences.

Primary School Teachers’ Perception of Their Qualification for Cooperating with Parents

Directory of Open Access Journals (Sweden)

Šrot Kristina

2013-09-01

Full Text Available The article presents a survey on teachers’ qualification for collaborating with parents of primary school children aged between 6 and 12. We investigated the most common difficulties that teachers face in communicating with parents and the way they tackle them. We differentiated the responses obtained according to the teachers’ years of service and the school environment they teach in. The teachers claimed that during their undergraduate studies, they had not received satisfactory training on how to communicate with parents. They believe they are not professionally qualified and they lack a wide array of competences which would facilitate their cooperation with parents. Some of the teachers’ observations are as follows: parents are generally willing to constructively exchange opinions about their children; some of them tend to overestimate their children’s abilities or are unequipped with skills on how to handle their child. One third of teacher respondents noted that they had experienced elements of aggressive behaviour in communicating with some parents. This is why we have introduced some guidelines which might help improve certain situations. In a learning society, teachers’ competences have been changing, becoming more complex and requiring teacher’s permanent professional advancement and adoption of modern educational trends. At the same time, we realise that communication is a twoway interdependent process. Along with the competences of a teacher, we must therefore also consider the competences of parents and their contribution to quality cooperation and effective communication.

Asymmetric Rolling Process Simulations by Dynamic Explicit Crystallographic Homogenized Finite Element Method

International Nuclear Information System (INIS)

Ngoc Tam, Nguyen; Nakamura, Yasunori; Terao, Toshihiro; Kuramae, Hiroyuki; Nakamachi, Eiji; Sakamoto, Hidetoshi; Morimoto, Hideo

2007-01-01

Recently, the asymmetric rolling (ASR) has been applied to the material processing of aluminum alloy sheet to control micro-crystal structure and texture in order to improve the mechanical properties. Previously, several studies aimed at high formability sheet generation have been carried out experimentally, but finite element simulations to predict the deformation induced texture evolution of the asymmetrically rolled sheet metals have not been investigated rigorously. In this study, crystallographic homogenized finite element (FE) codes are developed and applied to analyze the asymmetrical rolling processes. The textures of sheet metals were measured by electron back scattering diffraction (EBSD), and compared with FE simulations. The results from the dynamic explicit type Crystallographic homogenization FEM code shows that this type of simulation is a comprehensive tool to predict the plastic induced texture evolution

Elemental compositions of two extrasolar rocky planetesimals

Energy Technology Data Exchange (ETDEWEB)

Xu, S.; Jura, M.; Klein, B.; Zuckerman, B. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095-1562 (United States); Koester, D., E-mail: sxu@astro.ucla.edu, E-mail: jura@astro.ucla.edu, E-mail: kleinb@astro.ucla.edu, E-mail: ben@astro.ucla.edu, E-mail: koester@astrophysik.uni-kiel.de [Institut fur Theoretische Physik und Astrophysik, University of Kiel, D-24098 Kiel (Germany)

2014-03-10

We report Keck/HIRES and Hubble Space Telescope/COS spectroscopic studies of extrasolar rocky planetesimals accreted onto two hydrogen atmosphere white dwarfs, G29-38 and GD 133. In G29-38, eight elements are detected, including C, O, Mg, Si, Ca, Ti, Cr, and Fe while in GD 133, O, Si, Ca, and marginally Mg are seen. These two extrasolar planetesimals show a pattern of refractory enhancement and volatile depletion. For G29-38, the observed composition can be best interpreted as a blend of a chondritic object with some refractory-rich material, a result from post-nebular processing. Water is very depleted in the parent body accreted onto G29-38, based on the derived oxygen abundance. The inferred total mass accretion rate in GD 133 is the lowest of all known dusty white dwarfs, possibly due to non-steady state accretion. We continue to find that a variety of extrasolar planetesimals all resemble to zeroth order the elemental composition of bulk Earth.

Analyzing empowerment oriented email consultation for parents : Development of the Guiding the Empowerment Process model

NARCIS (Netherlands)

dr. Christa C.C. Nieuwboer

2014-01-01

Background. Online consultation is increasingly offered by parenting practitioners, but it is not clear if it is feasible to provide empowerment oriented support in single session email consultation. Method. Based on empowerment theory we developed the Guiding the Empowerment Process model (GEP

Online elemental analysis of process gases with ICP-OES: A case study on waste wood combustion

International Nuclear Information System (INIS)

Wellinger, Marco; Wochele, Joerg; Biollaz, Serge M.A.; Ludwig, Christian

2012-01-01

Highlights: ► Simultaneous measurements of 23 elements in process gases of a waste wood combustor. ► Mobile ICP spectrometer allows measurements of high quality at industrial plants. ► Continuous online measurements with high temporal resolution. ► Linear correlations among element concentrations in the raw flue gas were detected. ► Novel sampling and calibration methods for ICP-OES analysis of process gases. - Abstract: A mobile sampling and measurement system for the analysis of gaseous and liquid samples in the field was developed. An inductively coupled plasma optical emission spectrometer (ICP-OES), which is built into a van, was used as detector. The analytical system was calibrated with liquid and/or gaseous standards. It was shown that identical mass flows of either gaseous or liquid standards resulted in identical ICP-OES signal intensities. In a field measurement campaign trace and minor elements in the raw flue gas of a waste wood combustor were monitored. Sampling was performed with a highly transport efficient liquid quench system, which allowed to observe temporal variations in the elemental process gas composition. After a change in feedstock an immediate change of the element concentrations in the flue gas was detected. A comparison of the average element concentrations during the combustion of the two feedstocks showed a high reproducibility for matrix elements that are expected to be present in similar concentrations. On the other hand elements that showed strong differences in their concentration in the feedstock were also represented by a higher concentration in the flue gas. Following the temporal variations of different elements revealed strong correlations between a number of elements, such as chlorine with sodium, potassium and zinc, as well as arsenic with lead, and calcium with strontium.

Parental spirituality in life-threatening pediatric cancer.

Science.gov (United States)

Nicholas, David B; Barrera, Maru; Granek, Leeat; D'Agostino, Norma Mammone; Shaheed, Jenny; Beaune, Laura; Bouffet, Eric; Antle, Beverley

2017-01-01

This study addressed parental spirituality in the context of pediatric cancer with a poor prognosis. Drawing upon previous research implementing a longitudinal grounded theory design examining parental hope, 35 parents were interviewed regarding their experiences with an emergent description of the role of spirituality in parents' daily lives. Spirituality included religious beliefs and practices, notions of a higher force or cosmos, relationship with a divine being, as well as elements emerging from meaning-making and relationships. Parental expectations of spirituality remained relatively constant across data collection time points (3-9 months postdiagnosis), although limited variation occurred relative to shifting circumstance (e.g., deterioration of the child's condition). Spirituality appeared to offer: greater acceptance of parents' inability to protect their child from harm related to her/his life-threatening illness, guidance and emotion decompression, and support from one's faith community. Recommendations for integrating spiritual assessment in clinical care practice are offered.

Distribution of trace elements in selected pulverized coals as a function of particle size and density

Science.gov (United States)

Senior, C.L.; Zeng, T.; Che, J.; Ames, M.R.; Sarofim, A.F.; Olmez, I.; Huggins, Frank E.; Shah, N.; Huffman, G.P.; Kolker, A.; Mroczkowski, S.; Palmer, C.; Finkelman, R.

2000-01-01

Trace elements in coal have diverse modes of occurrence that will greatly influence their behavior in many coal utilization processes. Mode of occurrence is important in determining the partitioning during coal cleaning by conventional processes, the susceptibility to oxidation upon exposure to air, as well as the changes in physical properties upon heating. In this study, three complementary methods were used to determine the concentrations and chemical states of trace elements in pulverized samples of four US coals: Pittsburgh, Illinois No. 6, Elkhorn and Hazard, and Wyodak coals. Neutron Activation Analysis (NAA) was used to measure the absolute concentration of elements in the parent coals and in the size- and density-fractionated samples. Chemical leaching and X-ray absorption fine structure (XAFS) spectroscopy were used to provide information on the form of occurrence of an element in the parent coals. The composition differences between size-segregated coal samples of different density mainly reflect the large density difference between minerals, especially pyrite, and the organic portion of the coal. The heavy density fractions are therefore enriched in pyrite and the elements associated with pyrite, as also shown by the leaching and XAFS methods. Nearly all the As is associated with pyrite in the three bituminous coals studied. The sub-bituminous coal has a very low content of pyrite and arsenic; in this coal arsenic appears to be primarily organically associated. Selenium is mainly associated with pyrite in the bituminous coal samples. In two bituminous coal samples, zinc is mostly in the form of ZnS or associated with pyrite, whereas it appears to be associated with other minerals in the other two coals. Zinc is also the only trace element studied that is significantly more concentrated in the smaller (45 to 63 ??m) coal particles.

Peer-led Aboriginal parent support: Program development for vulnerable populations with participatory action research.

Science.gov (United States)

Munns, Ailsa; Toye, Christine; Hegney, Desley; Kickett, Marion; Marriott, Rhonda; Walker, Roz

2017-10-01

Participatory action research (PAR) is a credible, culturally appropriate methodology that can be used to effect collaborative change within vulnerable populations. This PAR study was undertaken in a Western Australian metropolitan setting to develop and evaluate the suitability, feasibility and effectiveness of an Aboriginal peer-led home visiting programme. A secondary aim, addressed in this paper, was to explore and describe research methodology used for the study and provide recommendations for its implementation in other similar situations. PAR using action learning sets was employed to develop the parent support programme and data addressing the secondary, methodological aim were collected through focus groups using semi-structured and unstructured interview schedules. Findings were addressed throughout the action research process to enhance the research process. The themes that emerged from the data and addressed the methodological aim were the need for safe communication processes; supportive engagement processes and supportive organisational processes. Aboriginal peer support workers (PSWs) and community support agencies identified three important elements central to their capacity to engage and work within the PAR methodology. This research has provided innovative data, highlighting processes and recommendations for child health nurses to engage with the PSWs, parents and community agencies to explore culturally acceptable elements for an empowering methodology for peer-led home visiting support. There is potential for this nursing research to credibly inform policy development for Aboriginal child and family health service delivery, in addition to other vulnerable population groups. Child health nurses/researchers can use these new understandings to work in partnership with Aboriginal communities and families to develop empowering and culturally acceptable strategies for developing Aboriginal parent support for the early years. Impact Statement Child

Multivariate Models of Parent-Late Adolescent Gender Dyads: The Importance of Parenting Processes in Predicting Adjustment

Science.gov (United States)

McKinney, Cliff; Renk, Kimberly

2008-01-01

Although parent-adolescent interactions have been examined, relevant variables have not been integrated into a multivariate model. As a result, this study examined a multivariate model of parent-late adolescent gender dyads in an attempt to capture important predictors in late adolescents' important and unique transition to adulthood. The sample…

The Release of Trace Elements in the Process of Coal Coking

Directory of Open Access Journals (Sweden)

Jan Konieczyński

2012-01-01

Full Text Available In order to assess the penetration of individual trace elements into the air through their release in the coal coking process, it is necessary to determine the loss of these elements by comparing their contents in the charge coal and in coke obtained. The present research covered four coke oven batteries differing in age, technology, and technical equipment. By using mercury analyzer MA-2 and the method of ICP MS As, Be, Cd, Co, Hg, Mn, Ni, Se, Sr, Tl, V, and Zn were determined in samples of charge coal and yielded coke. Basing on the analyses results, the release coefficients of selected elements were determined. Their values ranged from 0.5 to 94%. High volatility of cadmium, mercury, and thallium was confirmed. The tests have shown that although the results refer to the selected case studies, it may be concluded that the air purity is affected by controlled emission occurring when coke oven batteries are fired by crude coke oven gas. Fugitive emission of the trace elements investigated, occurring due to coke oven leaks and openings, is small and, is not a real threat to the environment except mercury.

Brief report: identity processes in Filipino late adolescents and young adults: parental influences and mental health outcomes.

Science.gov (United States)

Pesigan, Ivan Jacob Agaloos; Luyckx, Koen; Alampay, Liane Peña

2014-07-01

This study focused on a process-oriented approach to identity formation using a sample of Filipino late adolescents and young adults (17-30 years; N = 779). Indirect relations between parenting and mental health via identity formation processes were examined. Two parenting dimensions (psychological control and support), two types of mental health outcomes (depression and psychological well-being), and five identity dimensions (commitment making (CM), identification with commitment (IC), exploration in breadth (EB), exploration in depth (ED), and ruminative exploration (RE)) were assessed. Recursive path analysis showed indirect relations between parenting and mental health via EB, ED, RE, and IC. Model differences between late adolescents (17-21 year olds) and young adults (22-30 year olds) were examined using multigroup path analysis. Results showed that the direct effect of psychological control on RE, and its indirect effect on depression through RE differed between the age groups. Implications and suggestions for future research are provided. Copyright © 2014 The Foundation for Professionals in Services for Adolescents. Published by Elsevier Ltd. All rights reserved.

Parent-Adolescent Collaboration: An Interpersonal Model for Understanding Optimal Interactions

Science.gov (United States)

Beveridge, Ryan M.; Berg, Cynthia A.

2007-01-01

Current parent-adolescent behavioral interaction research highlights the importance of three elements of behavior in defining adaptive interactions: autonomy, control, and warmth vs. hostility. However, this research has largely addressed the developmental needs and psychosocial outcomes of adolescents, as opposed to parents, with a focus on how…

Fathers parenting role: self-esteem, parenting styles and parental self-efficacy

OpenAIRE

Pires, Mónica; Brites, Rute; Nunes, Odete; Hipólito, João

2013-01-01

This study aims to explore the relation between fathers parenting styles (PS), self-esteem (SE) and parental self-efficacy (PSE). Research points out the complex potential relations between SE and PSE. Although PSE has been studied in association to PS, there’s a research gap concerning the influence of fathers’ SE in this process. In a cross-sectional study a questionnaire comprising personal data, PS, SE and PSE was completed by 157men (age: M=38.41, SD=6.03) of pre-school/sc...

Harsh, inconsistent parental discipline and romantic relationships: mediating processes of behavioral problems and ambivalence.

Science.gov (United States)

Surjadi, Florensia F; Lorenz, Frederick O; Conger, Rand D; Wickrama, K A S

2013-10-01

According to the Development of Early Adult Romantic Relationships (DEARR) model (Bryant, C. M., & Conger, R. D. [2002]. Conger, R. D., Cui, M., Bryant, C. M., & Elder, G. H., Jr. [2000] interactional characteristics in the family of origin influence early adult romantic relationships by promoting or inhibiting the development of interpersonal competencies that contribute to relationship success in young adulthood. The present study uses the DEARR model as a general framework to help examine the long-term link between parental discipline practices in adolescence and young adult's interactions in the early years of marriage or cohabitation. Using prospective data from 288 target participants, their families, and their romantic partner, beginning when the targets were adolescents and continuing up to the fifth year of their marital or cohabiting relationships, we found empirical support for the DEARR model. Parental discipline practices in adolescence were associated with romantic relationship quality during the early years of marriage or cohabitation through processes in late adolescence and young adulthood. Specifically, harsh and inconsistent discipline practices were associated with greater attitudinal ambivalence toward parents in adolescence. Inconsistent discipline was also associated with higher risks of externalizing problems during late adolescence years. Externalizing problems and ambivalence toward parents predicted poorer relationship quality through aggressive behaviors and ambivalence toward a romantic partner during the early years of marriage or cohabitation. Implications for practitioners working with couples and families are discussed.

Parenting Stress in Parents of Infants With Congenital Heart Disease and Parents of Healthy Infants: The First Year of Life.

Science.gov (United States)

Golfenshtein, Nadya; Hanlon, Alexandra L; Deatrick, Janet A; Medoff-Cooper, Barbara

2017-12-01

While we know that the parents of infants with congenital heart disease (CHD), the most prevalent group of congenital anomalies, experience increased parenting stress, the stress levels throughout infancy have yet to be studied. Stress experienced by parents beyond the normative stress of parenting can interfere with parenting processes, and bear adverse family outcomes. This prospective cohort study was conducted to describe and compare parenting stress levels during infancy between parents of infants with complex CHD and parents of healthy infants. The Parenting Stress Index-Long Form was distributed to parents of infants with complex CHD and parents of healthy infants (N = 129). T-tests were used to compare stress between groups at 3, 6, 9, and 12 months of age. Parents of infants with complex CHD had higher parenting stress than parents of healthy infants on multiple subscales on the Child and Parent Domains, at 3 months of age. The stress remained higher on the demandingness subscale throughout infancy. Parents of CHD infants also demonstrated significantly higher stress scores on the life stress subscale at 12 months of age. Findings highlight stressful periods related to parenting infants with CHD, which may increase existing psycho-social risk for parents of infants with CHD. Early family intervention may promote parental adaptation to the illness, and help establishing healthy parenting practices.

Studies of mineralogy and geochemistry of Rare Earth Elements in permo-Triassic Bauxite deposit, Northeast of Bukan, North West of Iran

International Nuclear Information System (INIS)

Abedini, A.; Calagari, A. A.; Hadjalilu, B.; Jahangiri, A.

2008-01-01

Bauxite deposit of Permo-Triassic age in northeast of Bukan was developed stratiformly along the boundary between Ruteh and Elika formations, and includes four distinct rock units. This deposit was affected by tectonic and morphological processes. Mineralogical and geochemical investigations showed that during weathering processes, two mechanisms of ferrugenization and deferrugenization played crucial role in formation of minerals such as Diaspora, boehmite, hematite, goethite, kaolinite, pyrophyllite, clinochlore, illite, montmorillonite, anatase, rutile, albite, sanidine, quartz, and calcite in this deposit. By taking notice of field evidence and of mineralogical and geochemical data, the basalts (whose remnants are still present along the contact of this deposit with carbonate bedrock) are the potential parent rock of this deposit. The distribution pattern of rare earth elements (normalized to chondrite and basaltic parent rock) along with anomaly variations of Eu, Ce, and (La/Yb) N indicates differentiation of LREEs from HREEs during bauxitization processes. Further geochemical considerations indicate that the concentrations of LREEs were occurred by hematite, goethite, manganese oxides, cerianite, and secondary phosphates (rhabdophane, vitusite, gorceixite, monazite) and of HREEs by clay minerals; rutile, anatase, zircon, euxenite, and fergusonite. Incorporation of the results obtained from mineralogical and geochemical investigations suggests that in addition to factors such as p H of weathering solutions, ionic potential, composition of the parent rock, and fixation by residual minerals, adsorption processes also played crucial role in enrichment of rare earth elements during moderate to intense lateritization in the study area

A Systematic Review of Fidelity of Implementation in Parent-Mediated Early Communication Intervention

Science.gov (United States)

Lieberman-Betz, Rebecca G.

2015-01-01

This article examined the reporting of four elements of fidelity of implementation (FOI) in parent-mediated early communication treatment studies. Thirty-five studies were reviewed to extract information regarding reporting of dosage, adherence, quality, and participant responsiveness for both practitioners and parents involved in parent-delivered…

A discrete element based simulation framework to investigate particulate spray deposition processes

KAUST Repository

Mukherjee, Debanjan; Zohdi, Tarek I.

2015-01-01

© 2015 Elsevier Inc. This work presents a computer simulation framework based on discrete element method to analyze manufacturing processes that comprise a loosely flowing stream of particles in a carrier fluid being deposited on a target surface

THE RELATIONSHIP OF PERSONAL MATURITY OF THE ADOPTIVE PARENTS AND THE PROCESS OF SOCIALIZATIONAND IDENTIFICATION OF PRESCHOOL CHILDREN

Directory of Open Access Journals (Sweden)

A N Pronina

2015-12-01

Full Text Available The article is devoted to the topic of the development of children from orphanage in a foster home, showing the importance of personal maturity of the adoptive parents. The authors present the results of a study showing that there is a relationship between the individual criteria of personal maturity of the adoptive parents and the process of socialization and individualization of the children from orphanage.

Perceived parental control processes, parent-child relational qualities, and psychological well-being in chinese adolescents with and without economic disadvantage.

Science.gov (United States)

Shek, Daniel T L

2005-06-01

The author assessed the relationships between poverty and perceived parenting style, parent-child relationships, and adolescent psychological well-being in Chinese secondary school students (N = 3,017). Participants completed questionnaires designed to assess (a) the degree to which their parents used monitoring, discipline, and other techniques to control their behavior; (b) the extent to which their parents attempted to control them in a way that undermined their psychological development; (c) the parent-child relational qualities, such as the child's readiness to communicate with the parents and perceived mutual trust; and (d) the child's psychological well-being. Although adolescents with economic disadvantage did not differ from adolescents without economic disadvantage on the maternal variables (except on parental knowledge and parental monitoring), adolescents whose families were receiving public assistance generally perceived paternal behavioral control and father-child relational qualities to be more negative than did adolescents who were not receiving public assistance. The author found psychological well-being (shown by hopelessness, mastery, life satisfaction, self-esteem) of adolescents experiencing economic disadvantage to be weaker than that of adolescents not experiencing economic disadvantage.

Parents-CARE: a suicide prevention program for parents of at-risk youth.

Science.gov (United States)

Hooven, Carole

2013-02-01

Families play an important role in youth suicide prevention, as both a source of protection and a source of risk, and thus are an important target for adolescent suicide prevention programs. This article describes in detail Parents-CARE, a brief youth suicide prevention program for parents, for which effectiveness has been demonstrated. Engaging parents in preventive intervention can be challenging; therefore, the feasibility, acceptability, and relevance of the program to parents are examined. A total of 289 households participated in Parents-CARE. Parent attendance data and parent and interventionist process data are utilized to demonstrate the positive response by parents to the program. The Parents-CARE program was highly attended, and ratings demonstrate that parents were engaged in the program. Ratings show parents found the program both acceptable and relevant. Hence, the program described is promising for clinicians working with at-risk youth as they seek brief, accessible, and effective interventions that include parents in order to amplify the effects of an individual intervention approach. © 2013 Wiley Periodicals, Inc.

Are Parents Doing Better When They Are Together? A Study on the Association between Parental Sensitivity and Family-Level Processes

Science.gov (United States)

Udry-Jørgensen, Laura; Tissot, Hervé; Frascarolo, France; Despland, Jean-Nicolas; Favez, Nicolas

2016-01-01

The aim of this study was to evaluate the influence of one parent's presence on the quality of the interaction between the other parent and their three-month-old infant. Family interactions were observed in a sample of 69 two-parent families. Parental sensitivity was assessed during two sessions, first in a "dyadic" context (D) and then…

Influence of near-edge processes in the elemental analysis using X

Indian Academy of Sciences (India)

The near-edge processes, such as X-ray absorption fine structure (XAFS) andresonant ... away from the shell/subshell ionization thresholds of the attenuator element. ... The influence of XAFS to the attenuation coefficient depends upon the ...

PARENTS 2 study protocol: pilot of Parents' Active Role and ENgagement in the review of Their Stillbirth/perinatal death.

Science.gov (United States)

Bakhbakhi, Danya; Siassakos, Dimitrios; Storey, Claire; Heazell, Alexander; Lynch, Mary; Timlin, Laura; Burden, Christy

2018-01-10

The perinatal mortality review meeting that takes place within the hospital following a stillbirth or neonatal death enables clinicians to learn vital lessons to improve care for women and their families for the future. Recent evidence suggests that parents are unaware that a formal review following the death of their baby takes place. Many would welcome the opportunity to feedback into the meeting itself. Parental involvement in the perinatal mortality review meeting has the potential to improve patient satisfaction, drive improvements in patient safety and promote an open culture within healthcare. Yet evidence on the feasibility of involving bereaved parents in the review process is lacking. This paper describes the protocol for the Parents' Active Role and Engangement iN the review of their Stillbirth/perinatal death study (PARENTS 2) , whereby healthcare professionals' and stakeholders' perceptions of parental involvement will be investigated, and parental involvement in the perinatal mortality review will be piloted and evaluated at two hospitals. We will investigate perceptions of parental involvement in the perinatal mortality review process by conducting four focus groups. A three-round modified Delphi technique will be employed to gain a consensus on principles of parental involvement in the perinatal mortality review process. We will use three sequential rounds, including a national consensus meeting workshop with experts in stillbirth, neonatal death and bereavement care, and a two-stage anonymous online questionnaire. We will pilot a new perinatal mortality review process with parental involvement over a 6-month study period. The impact of the new process will be evaluated by assessing parents' experiences of their care and parents' and staff perceptions of their involvement in the process by conducting further focus groups and using a Parent Generated Index questionnaire. This study has ethical approval from the UK Health Research Authority. We will

Finite element simulation of dynamic wetting flows as an interface formation process

KAUST Repository

Sprittles, J.E.; Shikhmurzaev, Y.D.

2013-01-01

A mathematically challenging model of dynamic wetting as a process of interface formation has been, for the first time, fully incorporated into a numerical code based on the finite element method and applied, as a test case, to the problem

Acculturation Conflict, Cultural Parenting Self-Efficacy, and Perceived Parenting Competence in Asian American and Latino/a Families.

Science.gov (United States)

Kiang, Lisa; Glatz, Terese; Buchanan, Christy M

2017-12-01

Parents from immigrant backgrounds must deal with normative parenting demands as well as unique challenges associated with acculturation processes. The current study examines the independent and interactive influences of acculturation conflict and cultural parenting self-efficacy (PSE; e.g., parents' confidence in instilling heritage, American, and bicultural values in their children) on perceptions of general parenting competence. Using data from 58 Asian American and 153 Latin American parents of children in grades 6-12, ethnic differences were also explored. Results suggest that lower acculturation conflict is associated with higher perceptions of general parenting competence for both Asian and Latin American parents. Higher cultural PSE is associated with higher perceived general parenting competence for Latino/a parents only. One significant interaction was found, and only for Asian Americans, whereby the negative association between acculturation conflict and perceptions of parenting competence was weaker for those who felt efficacious in transmitting heritage messages. Results are discussed in light of clinical implications and the need for further recognition and study of culturally relevant factors and frameworks among families from immigrant backgrounds. © 2016 Family Process Institute.

Functional priorities reported by parents of children with cerebral palsy: contribution to the pediatric rehabilitation process

Directory of Open Access Journals (Sweden)

Marina B. Brandão

2014-12-01

Full Text Available Background: Collaborative actions between family and therapist are essential to the rehabilitation process, and they can be a catalyst mechanism to the positive outcomes in children with cerebral palsy (CP. Objectives: To describe functional priorities established by caregivers of CP children by level of severity and age, and to assess changes on performance and satisfaction on functional priorities reported by caregivers, in 6-month interval. Method: 75 CP children, weekly assisted at Associação Mineira de Reabilitação, on physical and occupational therapy services. The following information was collected: gross motor function (Gross Motor Function Classification System-GMFCS and functional priorities established by caregivers (Canadian Occupational Performance Measure-COPM. Data were collected in two moments, with a 6-month interval. Results: The main functional demands presented by caregivers were related to self-care activities (48.2%. Parents of children with severe motor impairment (GMFCS V pointed higher number of demands related to play (p=0.0036, compared to the other severity levels. Parents of younger children reported higher number of demands in mobility (p=0.025 and play (p=0.007, compared to other age groups. After 6 months, there were significant increase on COPM performance (p=0.0001 and satisfaction scores (p=0.0001. Conclusions: Parents of CP children identified functional priorities in similar performance domains, by level of severity and age. Orienting the pediatric rehabilitation process to promote changes in functional priorities indentified by caregivers can contribute to the reinforcement of the parent-therapist collaboration.

Supervised Classification Processes for the Characterization of Heritage Elements, Case Study: Cuenca-Ecuador

Science.gov (United States)

Briones, J. C.; Heras, V.; Abril, C.; Sinchi, E.

2017-08-01

The proper control of built heritage entails many challenges related to the complexity of heritage elements and the extent of the area to be managed, for which the available resources must be efficiently used. In this scenario, the preventive conservation approach, based on the concept that prevent is better than cure, emerges as a strategy to avoid the progressive and imminent loss of monuments and heritage sites. Regular monitoring appears as a key tool to identify timely changes in heritage assets. This research demonstrates that the supervised learning model (Support Vector Machines - SVM) is an ideal tool that supports the monitoring process detecting visible elements in aerial images such as roofs structures, vegetation and pavements. The linear, gaussian and polynomial kernel functions were tested; the lineal function provided better results over the other functions. It is important to mention that due to the high level of segmentation generated by the classification procedure, it was necessary to apply a generalization process through opening a mathematical morphological operation, which simplified the over classification for the monitored elements.

Aboriginal parent support: A partnership approach.

Science.gov (United States)

Munns, Ailsa; Toye, Christine; Hegney, Desley; Kickett, Marion; Marriott, Rhonda; Walker, Roz

2018-02-01

This study was positioned within a larger action research study relating to a peer-led Aboriginal home visiting parent support program in an urban Western Australian setting. The aims for this study component were to identify program elements, exploring participants' perceptions of the program's suitability, feasibility, acceptability and effectiveness to inform program model recommendations and add to the body of knowledge on effective Aboriginal peer-led program models. The ability of Aboriginal parents to develop positive family environments is crucial, with parent support needing to be reflexive to local needs and sociocultural influences. Culturally appropriate service provision needs meaningful and acceptable strategies. This study was situated within a critical paradigm supporting Participatory Action Research methodology, using Action Learning Sets as the participant engagement and data collection setting. Within ten Action Learning Sets, focus group interviews were carried out with Aboriginal peer support workers, a non-Aboriginal parent support worker, an Aboriginal program coordinator, an Aboriginal education support officer and non-Aboriginal program managers (n = 8), and individual interviews with parents (n = 2) and community agencies (n = 4). Data were analysed using thematic analysis. Five themes were derived from peer support worker and community agency cohorts: peer support worker home visiting skills; responding to impacts of social determinants of health; client support and engagement; interagency collaboration; and issues addressing program sustainability. Parent responses augmented these themes. Participants identified five key elements relating to peer-led home visiting support for Aboriginal parents. These are uniquely placed to inform ongoing program development as there is little additional evidence in wider national and international contexts. Engagement with communities and peer support workers to develop culturally relevant

Parental Engagement: Beyond Parental Involvement in Science Education

Science.gov (United States)

St. Louis, Kathleen

This study critically analyzes parents' complex stories of engagement in school and science education. The purpose is not to essentialize parental involvement, but rather to understand the processes of parental involvement and push forward the current discourse on the engagement of low-income minority and immigrant parents in schools and specifically science education. Employing critical grounded theory methods over a four-year span, this study had three areas of focus. First, voices of marginalized parents in the context of various spaces within the school system are examined. Using a qualitative approach, informal, formal, and research spaces were explored along with how minority parents express voice in these various spaces. Findings indicate parents drew on capital to express voice differently in different spaces, essentially authoring new spaces or the type of engagement in existing spaces. Second, the values and beliefs of traditionally marginalized people, the Discourse of mainstream society, and how they can inform a third, more transformative space for parental engagement in science are considered. The voices of low-income, marginalized parents around science and parental engagement (i.e., first space) are contrasted with the tenets of major national science policy documents (i.e., second space). Findings indicate a disparity between the pathways of engagement for low-income parents and policymakers who shape science education. Third, methodological questions of responsibility and assumption in qualitative research are explored. The author's complex struggle to make sense of her positionality, responsibilities, and assumptions as a researcher is chronicled. Findings focused on insider/outsider issues and implications for culturally sensitive research are discussed. Finally, the implications for policy, teaching, and research are discussed.

Learning from deaths: Parents' Active Role and ENgagement in The review of their Stillbirth/perinatal death (the PARENTS 1 study).

Science.gov (United States)

Bakhbakhi, Danya; Siassakos, Dimitrios; Burden, Christy; Jones, Ffion; Yoward, Freya; Redshaw, Maggie; Murphy, Samantha; Storey, Claire

2017-10-02

Following a perinatal death, a formal standardised multi-disciplinary review should take place, to learn from the death of a baby and facilitate improvements in future care. It has been recommended that bereaved parents should be offered the opportunity to give feedback on the care they have received and integrate this feedback into the perinatal mortality review process. However, the MBRRACE-UK Perinatal Confidential Enquiry (2015) found that only one in 20 cases parental concerns were included in the review. Although guidance suggests parental opinion should be sought, little evidence exists on how this may be incorporated into the perinatal mortality review process. The purpose of the PARENTS study was to investigate bereaved parents' views on involvement in the perinatal mortality review process. A semi-structured focus group of 11 bereaved parents was conducted in South West England. A purposive sampling technique was utilised to recruit a diverse sample of women and their partners who had experienced a perinatal death more than 6 months prior to the study. A six-stage thematic analysis was followed to explore parental perceptions and expectations of the perinatal mortality review process. Four over-arching themes emerged from the analysis: transparency; flexibility combined with specificity; inclusivity; and a positive approach. It was evident that the majority of parents were supportive of their involvement in the perinatal mortality review process and they wanted to know the outcome of the meeting. It emerged that an individualised approach should be taken to allow flexibility on when and how they could contribute to the process. The emotional aspects of care should be considered as well as the clinical care. Parents identified that the whole care pathway should be examined during the review including antenatal, postnatal, and neonatal and community based care. They agreed that there should be an opportunity for parents to give feedback on both good and

SMART Optimization of a Parenting Program for Active Duty Families

Science.gov (United States)

2017-10-01

child and caregiver outcomes over time, based on a sample of 200 military personnel and their co- parents who have recently or will soon separate from...AWARD NUMBER: W81XWH-16-1-0407 TITLE: SMART Optimization of a Parenting Program for Active Duty Families PRINCIPAL INVESTIGATOR: Abigail...Optimization of a Parenting Program for Active Duty 5a. CONTRACT NUMBER Families 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) Abigail

A finite element simulation of biological conversion processes in landfills

International Nuclear Information System (INIS)

Robeck, M.; Ricken, T.; Widmann, R.

2011-01-01

Landfills are the most common way of waste disposal worldwide. Biological processes convert the organic material into an environmentally harmful landfill gas, which has an impact on the greenhouse effect. After the depositing of waste has been stopped, current conversion processes continue and emissions last for several decades and even up to 100 years and longer. A good prediction of these processes is of high importance for landfill operators as well as for authorities, but suitable models for a realistic description of landfill processes are rather poor. In order to take the strong coupled conversion processes into account, a constitutive three-dimensional model based on the multiphase Theory of Porous Media (TPM) has been developed at the University of Duisburg-Essen. The theoretical formulations are implemented in the finite element code FEAP. With the presented calculation concept we are able to simulate the coupled processes that occur in an actual landfill. The model's theoretical background and the results of the simulations as well as the meantime successfully performed simulation of a real landfill body will be shown in the following.

Incidence of Parental Support and Pressure on Their Children’s Motivational Processes towards Sport Practice Regarding Gender

Science.gov (United States)

Amado, Diana

2015-01-01

Grounded in Self-Determination Theory, structural equation modeling (SEM) with the aim of examining how parental support/pressure could influence their children´s motivational processes in sport was conducted, as well as the models´ differences in operability regarding gender. The sample size was 321 children ranging in age from 10 to 16 years old who were athletes from Extremadura, and 321 parents (included only the father or mother more involved with the sport of his or her child). 175 participants were male and 146 were female from individual (n = 130), and team sports (n=191). A questionnaire was conducted to assess parental perception of support/pressure and another questionnaire was conducted to measure satisfaction of basic psychological needs, type of motivation and enjoyment/boredom showed by their children towards sport practice. Results revealed that parental pressure negatively predicted satisfaction of the basic psychological needs. It also emerged as a strong positive predictor of intrinsic motivation and negative predictor of amotivation. Moreover, intrinsic motivation emerged as positive predictor of enjoyment and a negative predictor of boredom, whereas amotivation positively predicted boredom and negatively predicted enjoyment. Furthermore, results showed there were mean differences by gender: male athletes perceived greater parental pressure. Hence, it is necessary to decrease parental pressure towards their children in sport, with the aim of making them more motivated and enjoy, promoting positive consequences. PMID:26039062

[Theraplay--interactive therapy between parent and child in juvenile mental problems].

Science.gov (United States)

Mäkelä, Jukka; Salo, Saara

2011-01-01

Parent-child interaction therapy is an effective means to prevent and correct children's mental problems. Interactive interventions shown to be effective share common features: the focus is on the support of the parent's sensitivity, positive guiding ability and reflective capability. Simultaneous participation of both parents in the therapy, application of video observation and affirmation of positive collaborative relationship with the parents seem to increase the efficacy of the intervention. The above-mentioned elements are utilized in an interactive therapy method called Theraplay.

Fission in R-processes Elements (FIRE) - Annual Report: Fiscal Year 2017

Energy Technology Data Exchange (ETDEWEB)

Schunck, Nicolas [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

2017-10-18

The goal of the FIRE topical collaboration in nuclear theory is to determine the astrophysical conditions of the rapid neutron capture process (r-process), which is responsible for the formation of heavy elements. This will be achieved by including in r-process simulations the most advanced models of fission (spontaneous, neutron-induced, beta-delayed) that have been developed at LLNL and LANL. The collaboration is composed of LLNL (lead) and LANL for work on nuclear data (ground-state properties, fission, beta-decay), BNL for nuclear data management, and the university of Notre Dame and North Carolina State University for r-process simulations. Under DOE/NNSA agreement, both universities receive funds from the DOE Office of Science, while national laboratories receive funds directly from NA221.

Solvent refined coal (SRC) process: trace elements research and development report no. 53, interim report no. 34. Volume III. Pilot plant development work part 6: the fate of trace elements in the SRC process for the period, August 1, 1977 - February 28, 1979

International Nuclear Information System (INIS)

Filby, R.H.; Khalil, S.R.; Grimm, C.A.; Ekabaram, V.; Hunt, M.L.

1980-12-01

This work reports the results of neutron activation analysis determination of the fate of trace elements in the SRC II process. Six coals were studied for their behavior in material balance runs carried out at the Fort Lewis Pilot Plant. The distribution of trace elements among products and input streams was determined by thermal neutron activation analysis using thermal neutron flux of 8 x 10 12 neutrons cm -2 sec -1 followed by Ge(Li) gamma ray spectroscopy. National Bureau of Standards Standard Reference Materials (SRM) were used to evaluate the analytical precision and accuracy of the methods used. For each material balance study the trace element input stream was taken as ground coal and the output streams were vacuum bottoms, SRC II product oil, and process water. In addition to these major components, oils, sludges and waters from liquid-liquid separators, effluent waters, biosludges, and by-product sulfur were also analyzed. Concerning the distribution of trace elements in the SRC II process, it was found that the vacuum bottoms was the major sink for all trace element studied, with the exception of Hg. Much lower trace element concentrations (except for Hg) were found in the SRC II product oil relative to the vacuum bottoms or the feed coal, irrespective of coal type. The results indicate excellent balances for the elements studied, except for Hg. Except for Hg, Se, and C1, the SRC II product and process waters contributed less than 1% of the elemental balances for light oil fractions and process waters indicates that Hg, and to a lesser degree As, Se, and Sb, exhibited volatile behavior in the SRC II process but that the degree of volatility is strongly dependent on conditions or coal type

Making the Difference with Active Parenting; Forming Educational Partnerships between Parents and Schools

Science.gov (United States)

Oostdam, Ron; Hooge, Edith

2013-01-01

Although parental involvement is often a priority on the quality agenda of schools for primary and secondary education, it is still not usual to involve parents as an educational partner in the actual learning process of their child. Rather than adopting an open approach, teachers tend to tell parents what they should do or keep them at a safe…

Perceived Parenting Style and Adolescent Adjustment: Revisiting Directions of Effects and the Role of Parental Knowledge

Science.gov (United States)

Kerr, Margaret; Stattin, Hakan; Ozdemir, Metin

2012-01-01

In the present research on parenting and adolescent behavior, there is much focus on reciprocal, bidirectional, and transactional processes, but parenting-style research still adheres to a unidirectional perspective in which parents affect youth behavior but are unaffected by it. In addition, many of the most cited parenting-style studies have…

Parenting with Mild Intellectual Deficits: Parental Expectations and the Educational Attainment of their Children

OpenAIRE

Taylor, Julie Lounds; Hurd, Heather Doescher; Seltzer, Marsha Mailick; Greenberg, Jan S.; Floyd, Frank J.

2010-01-01

This study examined how educational expectations parents with mild intellectual deficits had for their children shaped their children’s attainment, and how parents’ own intellectual limitations affected this process. We identified 612 parents with mild intellectual deficits and 2712 comparison parents from the Wisconsin Longitudinal Study, a prospective longitudinal study that followed participants from ages 18 to 64. Compared to the norm, parents with mild intellectual deficits expected thei...

The effect of melt composition on metal-silicate partitioning of siderophile elements and constraints on core formation in the angrite parent body

Science.gov (United States)

Steenstra, E. S.; Sitabi, A. B.; Lin, Y. H.; Rai, N.; Knibbe, J. S.; Berndt, J.; Matveev, S.; van Westrenen, W.

2017-09-01

We present 275 new metal-silicate partition coefficients for P, S, V, Cr, Mn, Co, Ni, Ge, Mo, and W obtained at moderate P (1.5 GPa) and high T (1683-1883 K). We investigate the effect of silicate melt composition using four end member silicate melt compositions. We identify possible silicate melt dependencies of the metal-silicate partitioning of lower valence elements Ni, Ge and V, elements that are usually assumed to remain unaffected by changes in silicate melt composition. Results for the other elements are consistent with the dependence of their metal-silicate partition coefficients on the individual major oxide components of the silicate melt composition suggested by recently reported parameterizations and theoretical considerations. Using multiple linear regression, we parameterize compiled metal-silicate partitioning results including our new data and report revised expressions that predict their metal-silicate partitioning behavior as a function of P-T-X-fO2. We apply these results to constrain the conditions that prevailed during core formation in the angrite parent body (APB). Our results suggest the siderophile element depletions in angrite meteorites are consistent with a CV bulk composition and constrain APB core formation to have occurred at mildly reducing conditions of 1.4 ± 0.5 log units below the iron-wüstite buffer (ΔIW), corresponding to a APB core mass of 18 ± 11%. The core mass range is constrained to 21 ± 8 mass% if light elements (S and/or C) are assumed to reside in the APB core. Incorporation of light elements in the APB core does not yield significantly different redox states for APB core-mantle differentiation. The inferred redox state is in excellent agreement with independent fO2 estimates recorded by pyroxene and olivine in angrites.

Grief: The Unrecognized Parental Response to Mental Illness in a Child.

Science.gov (United States)

MacGregor, Peggy

1994-01-01

Notes that parents whose son or daughter develops serious mental illness experience grief that is often neither recognized by society nor addressed by mental health professionals. Describes some common elements of parental bereavement, losses experienced with mental illness, consequences of ignoring grief, and appropriate interventions for mental…

The R-process: supernovae and other sources of the heaviest elements

International Nuclear Information System (INIS)

Thielemann, F.-K.; Moceli, D.; Panov, I.

2007-01-01

Rapid neutron capture in stellar explosions is responsible for the heaviest elements in nature, up to Th, U and beyond. This nucleosynthesis process, the r-process, is unique in the sense that a combination of nuclear physics far from stability (masses, half-lives, neutron-capture and photodisintegration, neutron-induced and beta-delayed fission and last but not least neutrino-nucleus interactions) is intimately linked to ejecta from astrophysical explosions (core collapse supernovae or other neutron star related events). The astrophysics and nuclear physics involved still harbor many uncertainties, either in the extrapolation of nuclear properties far beyond present experimental explorations or in the modeling of multidimensional, general relativistic (neutrino-radiation) hydrodynamics with rotation and possibly required magnetic fields. Observational clues about the working of the r-process are mostly obtained from solar abundances and from the abundance evolution of the heaviest elements as a function of galactic age, as witnessed in old extremely metal-poor stars. They contain information whether the r-process is identical for all stellar events, how abundance features develop with galactic time and whether the frequency of r-process events is comparable to that of average core collapse supernovae - producing oxygen through titanium, as well as iron-group nuclei. The theoretical modeling of the r-process has advanced from simple approaches, where the use of static neutron densities and temperatures can aid to test the influence of nuclear properties far from stability on abundance features, to more realistic expansions with a given entropy, global neutron/proton ratio and expansion timescales, as expected from explosive astrophysical events. The direct modeling in astrophysical events such as supernovae still faces the problem whether the required conditions can be met. (author)

Adolescents' with congenital heart disease and their parents' experiences of a nurse-led transition program. An interpretive phenomenological

Science.gov (United States)

Thomet, Corina; Lindenberg, Carina; Schwerzmann, Markus; Spichiger, Elisabeth

2018-02-01

Background: Up to 90 % of patients with congenital heart disease (CHD) now reach adulthood. To avoid lapses in care during the change from pediatric to adult care, a nurse-led transition program (TP) was implemented at a Swiss University Hospital. Aim: This study explored the experiences and expectations of adolescents with CHD and their parents regarding a nurse-led TP. Method: This qualitative study used an interpretive, phenomenological approach. Individual interviews were conducted with seven adolescent CHD patients in the transition period and their parents (six mothers, two fathers). Analysis followed an iterative process. Results: For most study participants, the transfer from pediatric to adult medicine as part of the TP went smoothly. They experienced the TP positively. Patients valued the provision of a constant contact person to provide CHD-related information; parents welcomed the support of an informed, neutral clinician for their children. To varying degrees, adolescents were willing to take over self-responsibility; conversely, parents found it difficult to turn their responsibility over to their children. Parents wished to give the adolescent as much time as needed to act responsibility on their own. Conclusions: A transition program is a key element for establishing a continuous care in adolescents with a chronic disease. It facilitates the parents' process of allowing their youths to assume increasing responsibility for their own health.

Beyond "Lots of Hugs and Kisses": Expressions of Parental Love From Parents and Their Young Children in Two-Parent, Financially Stable Families.

Science.gov (United States)

Sabey, Allen K; Rauer, Amy J; Haselschwerdt, Megan L; Volling, Brenda

2017-10-22

Given that parental love is essential for children's optimal development, the current study gathered examples of how parental love was demonstrated within parent-child relationships. Fifty-eight two-parent, financially stable families consisting of a mother, father, and young child (3-7 years old) from the Midwest were interviewed regarding how they demonstrated or perceived parental love. Results from an inductive thematic analysis revealed considerable variability in how parental love was demonstrated, with five themes emerging that overlapped between parents and their children: playing or doing activities together, demonstrating affection, creating structure, helping or supporting, and giving gifts or treats. Some gendered patterns among these themes were found with mothers emphasizing physical and verbal affection and fathers highlighting their more prominent role as playmates. The lay examples provided by parents and children in this exploratory study extend previous conceptualizations of parental love and underscore the importance of parents being attuned and responsive to the specific needs of their children. © 2017 Family Process Institute.

Amphibole trace elements as indicators of magmatic processes at Mount St. Helens

Science.gov (United States)

Hampel, T. R.; Rowe, M. C.; Kent, A.; Thornber, C. R.

2011-12-01

Amphibole has the capability of incorporating a wide variety of trace elements resulting from a range of magmatic processes. Prior studies have used trace elements such as Li and Cu in amphibole to investigate volatile mobility associated with magma ascent regarding the 2004-2008 eruption of Mount St. Helens (Rowe et al. 2008). In order to investigate magmatic processes associated with the 2004-2008 eruption of Mount St. Helens we have measured a range of fluid-mobile trace elements in conjunction with major element compositions of amphibole phenocrysts in dacite lava. Major elements and volatiles (Cl, F) were measured by electron microprobe analysis at Washington State University and trace elements (Li, Sc, Co, Cu, Zn, Sr, Y, Zr, Mo, Ag, Sn, Sb, Te, Ba, Ce, W, and Pb) were analyzed by laser ablation (LA)-ICP-MS at Oregon State University. Amphibole crystallization temperatures were calculated after Ridolfi et al. (2010). Core to rim transects were measured by electron microprobe to evaluate volatile concentrations and temperature profiles across individual phenocrysts. Core temperatures from 17 days and 226 days post eruption are consistently hotter than the rim temperatures 997 to 881 degrees C, respectively. Amphiboles from the end of the eruption (811 days post eruption) appear to be more complex, with phenocrysts having both increasing and decreasing temperatures toward the rims. The overall calculated temperature range of the amphiboles at the end of the eruption is 1022 to 919 degrees C. There is much diversity in the concentrations of Li and Cu within the phenocrysts in both the samples and throughout the eruption. Concentrations steadily increase in the beginning of the eruption then drop dramatically toward the middle, slowly increase toward the end eruption. Overall concentrations of Sr, Sb, Co, Sn, Mo, Ba, Ce, Sc, and Y do not change over the course of the eruption but do vary sample to sample. Preliminary data for Zn, Sb, Ag, and W suggest the

Parental divorce during early adolescence in Caucasian families: the role of family process variables in predicting the long-term consequences for early adult psychosocial adjustment.

Science.gov (United States)

Summers, P; Forehand, R; Armistead, L; Tannenbaum, L

1998-04-01

The relationship between parental divorce occurring during adolescence and young adult psychosocial adjustment was examined, as was the role of family process variables in clarifying this relationship. Participants were young Caucasian adults from divorced (n = 119) and married (n = 123) families. Assessments were conducted during adolescence and 6 years later during early adulthood. Young adults from married families reported more secure romantic attachments than those from divorced families; however, differences were not evident in other domains of psychosocial adjustment after demographic variables were controlled. Three family process variables (parent-adolescent relationship, interparental conflict, and maternal depressive symptoms) were examined as potential mediators and moderators of the association between parental divorce and young adult adjustment. No evidence supporting mediation or moderation was found; however, the parent-adolescent and parent-young adult relationships, particularly when the identified parent was the father, emerged as significant predictors of young adult psychosocial adjustment.

Parallel finite elements with domain decomposition and its pre-processing

International Nuclear Information System (INIS)

Yoshida, A.; Yagawa, G.; Hamada, S.

1993-01-01

This paper describes a parallel finite element analysis using a domain decomposition method, and the pre-processing for the parallel calculation. Computer simulations are about to replace experiments in various fields, and the scale of model to be simulated tends to be extremely large. On the other hand, computational environment has drastically changed in these years. Especially, parallel processing on massively parallel computers or computer networks is considered to be promising techniques. In order to achieve high efficiency on such parallel computation environment, large granularity of tasks, a well-balanced workload distribution are key issues. It is also important to reduce the cost of pre-processing in such parallel FEM. From the point of view, the authors developed the domain decomposition FEM with the automatic and dynamic task-allocation mechanism and the automatic mesh generation/domain subdivision system for it. (author)

Infantile anorexia, co-excitation and co-mastery in the parent/baby cathexis: The contribution of Sigmund and Anna Freud.

Science.gov (United States)

Cascales, Thomas

2017-04-01

Recent epidemiological studies show that 2% of babies in ordinary paediatric clinics suffer from infantile anorexia. In the first part of this paper we present a case study from our hospital clinical activity. Our framework combines clinical psychoanalytic sessions and perinatal videos. In the second part, we will focus on the concepts of instinct and excitation proposed by Sigmund Freud and the concept of mastery proposed by Anna Freud. In the third part, we will examine these concepts in the light of the case study. The fourth part is devoted to clinical recommendations from our hospital psychoanalytic practice. In conclusion, unlike other clinical settings, the psychoanalytic setting allows for the elaboration of the parental hatred included in the libidinal cathexis. Our psychoanalytic setting (sessions/videos) makes it possible to decontaminate parental intrapsychic elements overloaded with excitement, saturated with hate elements, and rendered sterile by the instinct for mastery. An initial part of the treatment process involves working through the intersubjective elements observed in the video. Copyright © 2016 Institute of Psychoanalysis.

Perceived Parenting Dimensions and Identity Styles: Exploring the Socialization of Adolescents' Processing of Identity-Relevant Information

Science.gov (United States)

Smits, Ilse; Soenens, Bart; Luyckx, Koen; Duriez, Bart; Berzonsky, Michael; Goossens, Luc

2008-01-01

This study examined the relationships between crucial dimensions of perceived parenting (support, behavioral control, and psychological control) and the three identity styles defined by Berzonsky [Berzonsky, M. D. (1990). "Self-construction over the life span: A process perspective on identity formation." "Advances in Personal Construct…

34 CFR 300.519 - Surrogate parents.

Science.gov (United States)

2010-07-01

... 34 Education 2 2010-07-01 2010-07-01 false Surrogate parents. 300.519 Section 300.519 Education... DISABILITIES Procedural Safeguards Due Process Procedures for Parents and Children § 300.519 Surrogate parents... parent (as defined in § 300.30) can be identified; (2) The public agency, after reasonable efforts...

Perceived Parental Control Processes, Parent-Child Relational Qualities, and Psychological Well-Being in Chinese Adolescents with and without Economic Disadvantage

Science.gov (United States)

Shek, Daniel T. L.

2005-01-01

The author assessed the relationships between poverty and perceived parenting style, parent-child relationships, and adolescent psychological well-being in Chinese secondary school students (N = 3,017). Participants completed questionnaires designed to assess (a) the degree to which their parents used monitoring, discipline, and other techniques…

Formation of Globular Clusters with Internal Abundance Spreads in r -Process Elements: Strong Evidence for Prolonged Star Formation

Energy Technology Data Exchange (ETDEWEB)

Bekki, Kenji [ICRAR, M468, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009 (Australia); Tsujimoto, Takuji [National Astronomical Observatory of Japan, Mitaka-shi, Tokyo 181-8588 (Japan)

2017-07-20

Several globular clusters (GCs) in the Galaxy are observed to show internal abundance spreads in r -process elements (e.g., Eu). We propose a new scenario that explains the origin of these GCs (e.g., M5 and M15). In this scenario, stars with no/little abundance variations first form from a massive molecular cloud (MC). After all of the remaining gas of the MC is expelled by numerous supernovae, gas ejected from asymptotic giant branch stars can be accumulated in the central region of the GC to form a high-density intracluster medium (ICM). Merging of neutron stars then occurs to eject r -process elements, which can be efficiently trapped in and subsequently mixed with the ICM. New stars formed from the ICM can have r -process abundances that are quite different from those of earlier generations of stars within the GC. This scenario can explain both (i) why r -process elements can be trapped within GCs and (ii) why GCs with internal abundance spreads in r -process elements do not show [Fe/H] spreads. Our model shows (i) that a large fraction of Eu-rich stars can be seen in Na-enhanced stellar populations of GCs, as observed in M15, and (ii) why most of the Galactic GCs do not exhibit such internal abundance spreads. Our model demonstrates that the observed internal spreads of r -process elements in GCs provide strong evidence for prolonged star formation (∼10{sup 8} yr).

NEW RARE EARTH ELEMENT ABUNDANCE DISTRIBUTIONS FOR THE SUN AND FIVE r-PROCESS-RICH VERY METAL-POOR STARS

International Nuclear Information System (INIS)

Sneden, Christopher; Lawler, James E.; Den Hartog, Elizabeth A.; Cowan, John J.; Ivans, Inese I.

2009-01-01

We have derived new abundances of the rare earth elements Pr, Dy, Tm, Yb, and Lu for the solar photosphere and for five very metal-poor, neutron-capture r-process-rich giant stars. The photospheric values for all five elements are in good agreement with meteoritic abundances. For the low-metallicity sample, these abundances have been combined with new Ce abundances from a companion paper, and reconsideration of a few other elements in individual stars, to produce internally consistent Ba, rare earth, and Hf (56 ≤ Z ≤ 72) element distributions. These have been used in a critical comparison between stellar and solar r-process abundance mixes.

The "Word Game": An Innovative Strategy for Assessing Implicit Processes in Parents at Risk for Child Physical Abuse

Science.gov (United States)

Crouch, Julie L.; Irwin, Lauren M.; Wells, Brett M.; Shelton, Christopher R.; Skowronski, John J.; Milner, Joel S.

2012-01-01

Objective: Contemporary theories of child physical abuse (CPA) emphasize the proximal role of social cognitive processes (many of which are implicit in nature) in the occurrence of parental aggression. However, methods that allow for the systematic examination of implicit cognitive processes during the course of aggressive interactions are needed.…

Does Informal Caregiving Lead to Parental Burnout? Comparing Parents Having (or Not) Children With Mental and Physical Issues.

Science.gov (United States)

Gérain, Pierre; Zech, Emmanuelle

2018-01-01

Introduction: Parenting a child with special needs (CSN) may be an important challenge. Previous research has highlighted an increased risk of parental burnout among parents caring for their CSN. Yet, these studies only focused on children with specific issues and did not consider the wide variety of CSN. There is thus a need to take a more global approach to assessing the impact of caring for a CSN on parental burnout. In addition, the impact on parental burnout of personality and parenting (dis)agreement needs to be measured to have a better understanding of parent-caregivers' (PCgs) burnout. Method: An online survey was completed by a large sample of parents from which a subsample of PCgs was identified. Results: T -tests highlighted significantly more parental burnout among parents of CSN. However, further analyses showed that parents with only one child with one special need did not experience significantly more burnout than parents with typical children. The significant difference lay in the presence of comorbidity or the presence of multiple CSN in the family. Hierarchical regressions showed an important impact of Neuroticism for every burnout facet, along with co-parenting (dis)agreement. Subjective consequences of having to care for a CSN were also related to the burnout facets of both emotional exhaustion and emotional distancing. Discussion: The presence of comorbidity and of multiple CSN in the family were related to more PCg burnout, emphasizing the need to consider these situations in further research. The role of neuroticism in PCg burnout confirms previous research both in parental and professional contexts. Parenting (dis)agreement also highlights the importance of dyadic support among parents. Finally, the importance of subjective aspects suggests that parental perception of their situation remains a central element in understanding the consequences of caregiving.

Perceived parenting dimensions and identity styles: exploring the socialization of adolescents' processing of identity-relevant information.

Science.gov (United States)

Smits, Ilse; Soenens, Bart; Luyckx, Koen; Duriez, Bart; Berzonsky, Michael; Goossens, Luc

2008-04-01

This study examined the relationships between crucial dimensions of perceived parenting (support, behavioral control, and psychological control) and the three identity styles defined by Berzonsky [Berzonsky, M. D. (1990). Self-construction over the life span: A process perspective on identity formation. Advances in Personal Construct Psychology, 1, 155-186.]. Each identity style was hypothesized to relate to a specific pattern of perceived parenting dimensions. Hypotheses were examined in a sample of middle and late adolescents (n=674). An information-oriented style was positively predicted by parental support. Contrary to expectations, however, an information-oriented style was also positively predicted by psychological control. A normative identity style was positively predicted by support and behavioral control. In line with expectations, a diffuse-avoidant identity style was positively predicted by psychological control and negatively by maternal (but not paternal) behavioral control. Findings are discussed in light of the literature on the socialization of identity formation and directions for future research are outlined.

Chemical evolution with rotating massive star yields - I. The solar neighbourhood and the s-process elements

Science.gov (United States)

Prantzos, N.; Abia, C.; Limongi, M.; Chieffi, A.; Cristallo, S.

2018-05-01

We present a comprehensive study of the abundance evolution of the elements from H to U in the Milky Way halo and local disc. We use a consistent chemical evolution model, metallicity-dependent isotopic yields from low and intermediate mass stars and yields from massive stars which include, for the first time, the combined effect of metallicity, mass loss, and rotation for a large grid of stellar masses and for all stages of stellar evolution. The yields of massive stars are weighted by a metallicity-dependent function of the rotational velocities, constrained by observations as to obtain a primary-like 14N behaviour at low metallicity and to avoid overproduction of s-elements at intermediate metallicities. We show that the Solar system isotopic composition can be reproduced to better than a factor of 2 for isotopes up to the Fe-peak, and at the 10 per cent level for most pure s-isotopes, both light ones (resulting from the weak s-process in rotating massive stars) and the heavy ones (resulting from the main s-process in low and intermediate mass stars). We conclude that the light element primary process (LEPP), invoked to explain the apparent abundance deficiency of the s-elements with A values of ^{12}C/^{13}C in halo red giants, which is rather due to internal processes in those stars.

A finite element simulation of biological conversion processes in landfills.

Science.gov (United States)

Robeck, M; Ricken, T; Widmann, R

2011-04-01

Landfills are the most common way of waste disposal worldwide. Biological processes convert the organic material into an environmentally harmful landfill gas, which has an impact on the greenhouse effect. After the depositing of waste has been stopped, current conversion processes continue and emissions last for several decades and even up to 100years and longer. A good prediction of these processes is of high importance for landfill operators as well as for authorities, but suitable models for a realistic description of landfill processes are rather poor. In order to take the strong coupled conversion processes into account, a constitutive three-dimensional model based on the multiphase Theory of Porous Media (TPM) has been developed at the University of Duisburg-Essen. The theoretical formulations are implemented in the finite element code FEAP. With the presented calculation concept we are able to simulate the coupled processes that occur in an actual landfill. The model's theoretical background and the results of the simulations as well as the meantime successfully performed simulation of a real landfill body will be shown in the following. Copyright © 2010 Elsevier Ltd. All rights reserved.

Social signal processing for studying parent-infant interaction

Directory of Open Access Journals (Sweden)

Marie eAvril

2014-12-01

Full Text Available Studying early interactions is a core issue of infant development and psychopathology. Automatic social signal processing theoretically offers the possibility to extract and analyse communication by taking an integrative perspective, considering the multimodal nature and dynamics of behaviours (including synchrony. This paper proposes an explorative method to acquire and extract relevant social signals from a naturalistic early parent-infant interaction. An experimental setup is proposed based on both clinical and technical requirements. We extracted various cues from body postures and speech productions of partners using the IMI2S (Interaction, Multimodal Integration, and Social Signal Framework. Preliminary clinical and computational results are reported for two dyads (one pathological in a situation of severe emotional neglect and one normal control as an illustration of our cross-disciplinary protocol. The results from both clinical and computational analyses highlight similar differences: the pathological dyad shows dyssynchronic interaction led by the infant whereas the control dyad shows synchronic interaction and a smooth interactive dialog. The results suggest that the current method might be promising for future studies.

Parental experience of family resources in single-parent families having a child with cancer.

Science.gov (United States)

Huang, I-Chen; Mu, Pei-Fan; Chiou, Tzeon-Jye

2008-10-01

The purpose of this study was to explore the essence of family experiences in terms of family resources and how these assist a single-parent caring for a child with cancer. When families face stresses caused by cancer, they need to readjust their roles, interactive patterns and relationships, both inside and outside the family. During the adaptation process, family resources may assist recovery from stress and a return to equilibrium. Most research has emphasised the support resources available to two-parent families during the treatment process. There is a lack of information on the experiences of single-parent families and their available resources together with the functions and roles played by family resources during the adjustment process. Qualitative. Five major themes were identified: (i) facing the disease with courage; (ii) hope kindled by professionals; (iii) constructing parental role ability; (iv) assisting the children to live with the illness; and (v) family flexibility. The results of the current study demonstrate that single-parent families with a child suffering from cancer employ family resources to assist family adjustment and to maintain family function/equilibrium. These results explain the dynamic interactions between the multiple levels of resources available to the family. The study results provide evidence-based information that identifies the nature of family resources in single-parent families and describes how these resources can be applied to assist the families.

Study of 3-D stress development in parent and twin pairs of a hexagonal close-packed polycrystal: Part II - Crystal plasticity finite element modeling

DEFF Research Database (Denmark)

Abdolvand, Hamidreza; Majkut, Marta; Oddershede, Jette

2015-01-01

for each grain from the 3DXRD experiment is within the stress variation zone of the grain modeled in the CPFE simulation. Also, the CPFE average stress calculation for each grain is in good agreement with the measured average stress values. It is shown that upon considering the stress variations within......Stress heterogeneity within each individual grain of polycrystalline Zircaloy-2 is studied using a crystal plasticity finite element (CPFE) model. For this purpose, the weighted Voronoi tessellation method is used to construct 3D geometries of more than 2600 grains based on their center......-of-mass positions and volumes as measured by three-dimensional X-ray diffraction (3DXRD) microscopy. The constructed microstructure is meshed with different element densities and for different numbers of grains. Then a selected group of twin and parent pairs are studied. It is shown that the measured average stress...

Parenting under pressure: a grounded theory of parenting young children with life-threatening congenital heart disease.

Science.gov (United States)

Rempel, Gwen R; Ravindran, Vinitha; Rogers, Laura G; Magill-Evans, Joyce

2013-03-01

To report a grounded theory study to describe the process of parenting young children who have survived hypoplastic left heart syndrome to inform parent-focused interventions. Technological advances in paediatric cardiology worldwide have improved the survival rates for young children with hypoplastic left heart syndrome who undergo staged surgical palliation. These children, however, are at risk for life-threatening complications and parents are charged with the responsibility to monitor their children at home with minimal support and guidance from healthcare professionals once home. A constructivist grounded theory study. The study was conducted in 2006-2008. Participants were 25 parents (15 mothers, 10 fathers) and 28 grandparents (17 grandmothers, 11 grandfathers) of 15 young children (6 months-4·5 years) who had undergone the Sano surgical approach for hypoplastic left heart syndrome. The 53 interviews were digitally recorded, transcribed and analysed using open and focused coding, constant comparative analysis and memoing. A process of Parenting under Pressure emerged that was characterized by four overlapping and re-emerging phases: (1) realizing and adjusting to the inconceivable; (2) growing increasingly attached; (3) watching for and accommodating the unexpected; and (4) encountering new challenges. In-depth understanding of the phases of Parenting under Pressure provides direction for nurses to support parents of children who survive hypoplastic left heart syndrome. Interventions that help carers of children with complex health conditions move through the phases of our Parenting under Pressure process may help them safeguard the survival of their children, and their own survival as parents as they manage multiple demands. © 2012 Blackwell Publishing Ltd.

Rare earth elements in minerals of the ALHA77005 shergottite and implications for its parent magma and crystallization history

Science.gov (United States)

Lundberg, Laura L.; Crozaz, Ghislaine; Mcsween, Harry Y., Jr.

1990-01-01

Analyses of mineral REE and selected minor and trace elements were carried out on individual grains of pyroxenes, whitlockite, maskelynite, and olivine of the Antarctic shergottite ALHA77005, and the results are used to interpret its parent magma and crystallization history. The results of mineral compositions and textural observations suggest that ALHA77005 is a cumulate with about half cumulus material (olivine + chromite) and half postcumulus phases. Most of the REEs in ALHA77005 reside in whitlockite whose modal concentration is about 1 percent. Mineral REE data support previous suggestions that plagioclase and whitlockite crystallized late, and that low-Ca pyroxene initiated crystallization before high-Ca pyroxene. The REE patterns for the intercumulus liquid, calculated from distribution coefficients for ALHA77005 pyroxene, plagioclase, and whitlockite, are in very good agreement and are similar to that of Shergotty.

TWO EXTRASOLAR ASTEROIDS WITH LOW VOLATILE-ELEMENT MASS FRACTIONS

International Nuclear Information System (INIS)

Jura, M.; Xu, S.; Klein, B.; Zuckerman, B.; Koester, D.

2012-01-01

Using ultraviolet spectra obtained with the Cosmic Origins Spectrograph on the Hubble Space Telescope, we extend our previous ground-based optical determinations of the composition of the extrasolar asteroids accreted onto two white dwarfs, GD 40 and G241-6. Combining optical and ultraviolet spectra of these stars with He-dominated atmospheres, 13 and 12 polluting elements are confidently detected in GD 40 and G241-6, respectively. For the material accreted onto GD 40, the volatile elements C and S are deficient by more than a factor of 10 and N by at least a factor of 5 compared to their mass fractions in primitive CI chondrites and approach what is inferred for bulk Earth. A similar pattern is found for G241-6 except that S is undepleted. We have also newly detected or placed meaningful upper limits for the amount of Cl, Al, P, Ni, and Cu in the accreted matter. Extending results from optical studies, the mass fractions of refractory elements in the accreted parent bodies are similar to what is measured for bulk Earth and chondrites. Thermal processing, perhaps interior to a snow line, appears to be of central importance in determining the elemental compositions of these particular extrasolar asteroids.

Parenting Coordinators' Practices Recommendations: A Qualitative Study

OpenAIRE

Hirsch, Barbara Phyllis

2016-01-01

This qualitative study used a phenomenological approach to understand the experiences of seven parenting coordinators in using parenting coordination practices that they have found to be effective and would recommend to other parenting coordinators to achieve the following goals: educating parents, increasing the quality of parenting and co-parenting, managing conflict, and involving children and other family members in the process of parenting coordination. Data were collected with semi-str...

Parenting Practices in Cultural Context: An Ecological Perspective

Science.gov (United States)

Zarnegar, Zohreh

2015-01-01

Despite general consensus that parenting practices influence the developmental processes of children, many questions about the impacts of parenting practices on child development within the cultural context remain unanswered. This article presents how cultural templates influence parenting practices and developmental processes of young children.…

Parental and Child Psychopathology: Moderated Mediation by Gender and Parent-Child Relationship Quality.

Science.gov (United States)

Franz, Annabel O; McKinney, Cliff

2018-03-26

Previous literature has not examined the processes underlying the relations among parent-child relationship quality, parental psychopathology, and child psychopathology in the context of gender. Further, research examining these variables in emerging adulthood is lacking. The current study examined whether parent-child relationship quality would mediate the relation between parental and child psychopathology, and whether gender moderated these associations. Participants were emerging adults (N = 665) who reported on perceptions of their parents' and their own psychological problems as well as their parent-child relationship quality. Results indicated that the relation between parental internalizing problems and parent-child relationship quality was positive for males, and that mother-child relationship quality was related positively to psychological problems in males. This suggests that sons may grow closer to their parents (particularly their mother) who are exhibiting internalizing problems; in turn, this enmeshed relationship may facilitate transmission of psychopathology. Mediational paths were conditional upon gender, suggesting moderated mediation. Overall, the current study emphasizes that the complexities of parenting must be understood in the context of gender. Further, the mother-son dyad may particularly warrant further attention.

Tube Bulge Process : Theoretical Analysis and Finite Element Simulations

International Nuclear Information System (INIS)

Velasco, Raphael; Boudeau, Nathalie

2007-01-01

This paper is focused on the determination of mechanics characteristics for tubular materials, using tube bulge process. A comparative study is made between two different models: theoretical model and finite element analysis. The theoretical model is completely developed, based first on a geometrical analysis of the tube profile during bulging, which is assumed to strain in arc of circles. Strain and stress analysis complete the theoretical model, which allows to evaluate tube thickness and state of stress, at any point of the free bulge region. Free bulging of a 304L stainless steel is simulated using Ls-Dyna 970. To validate FE simulations approach, a comparison between theoretical and finite elements models is led on several parameters such as: thickness variation at the free bulge region pole with bulge height, tube thickness variation with z axial coordinate, and von Mises stress variation with plastic strain. Finally, the influence of geometrical parameters deviations on flow stress curve is observed using analytical model: deviations of the tube outer diameter, its initial thickness and the bulge height measurement are taken into account to obtain a resulting error on plastic strain and von Mises stress

Preoperative parental information and parents' presence at induction of anaesthesia.

Science.gov (United States)

Astuto, M; Rosano, G; Rizzo, G; Disma, N; Raciti, L; Sciuto, O

2006-06-01

Preoperative preparation of paediatric patients and their environment in order to prevent anxiety is an important issue in paediatric anaesthesia. Anxiety in paediatric patients may lead to immediate negative postoperative responses. When a child undergoes surgery, information about the child's anaesthesia must be provided to parents who are responsible for making informed choices about healthcare on their child's behalf. A combination of written, pictorial, and verbal information would improve the process of informed consent. The issue of parental presence during induction of anaesthesia has been a controversial topic for many years. Potential benefits from parental presence at induction include reducing or avoiding the fear and anxiety that might occur in both the child and its parents, reducing the need for preoperative sedatives, and improving the child's compliance even if other studies showed no effects on the anxiety and satisfaction level. The presence of other figures such as clowns in the operating room, together with one of the child's parents, is an effective intervention for managing child and parent anxiety during the preoperative period.

Parental Choice of Schooling, Learning Processes and Inter-Ethnic Friendship Patterns: The Case of Malay Students in Chinese Primary Schools in Malaysia

Science.gov (United States)

Sua, Tan Yao; Ngah, Kamarudin; Darit, Sezali Md.

2013-01-01

This study surveys 200 Malay students enrolled in three Chinese primary schools in relation to three issues, i.e., parental choice of schooling, learning processes and inter-ethnic friendship patterns. The three issues are explored through a combination of quantitative and qualitative research methodologies. Parental expectations for their…

Tension optimization of the conductor-and-support cable elements during stranding process

Directory of Open Access Journals (Sweden)

I.M. Chayun

2016-12-01

Full Text Available Steel lifting ropes, cables and other similar products are rod statically undeterminable prestressed structures. Preliminary deformations of their elements (wires are caused by their manufacturing technology. Wires suffer stretching, bending with torsion in a stage of elastoplastic deformation. In this work the mechanic-mathematical model of residual forces determination in the wires of polymetallic conductor-and-support cable is offered. Aim: The aim of the work is studying of the mechanical and mathematical model defining residual forces in the wires of conductor-and-support cable and also the optimization of parameters of a twist by the criterion of residual forces lack after production process finishing. Materials and methods: The method developed by the authors earlier to the study the strain-stressed state of twisted wire products off-loading from technological internal forces has been applied to assess the impact of the approximate value of the longitudinal stiffness of the product. In this paper, each wire is considered as an element of the product individually. This is necessary to investigate the impact of uneven wire tensions on defects of conductor-and-support cable (out-of-straight in a free state and stripping-down. Results: On the basis of the conducted deformation studies of conductor-and-support cable during off-loading process from twist tension of its elements the dependencies of residual forces on the level and interrelation of elements tension has been determined. The condition of ensuring of zero residual forces in the wires of conductor-and-support cable after production is formulated. It was found that calculated values of residual forces are almost identical when using of the approximate and exact values of longitudinal stiffness of conductor-and-support cable.

Digital Parenting and Changing Roles

Directory of Open Access Journals (Sweden)

Işıl KABAKÇI YURDAKUL

2013-12-01

Full Text Available Information and communication technologies are developing rapidly. Developing technologies are integrated in many fields of life. This situation facilitated almost all fields of life. Owing to integration process, children’s technology use and adaption is easy compare to their parents. But technology use and adaption brings several disadvantages for children. Computer and the Internet have been used nearly all home in about last five years. Parents who were worried about their children when they played outside are worried about their children when they are on net at home. Due to these developments, parenting notion has gain new different dimensions and parenting roles are changed. Parents should now be digital parent, the Internet Parent or online parent. In this paper Digital Parenting is examined and described in additon to thisdigital parenting roles are determined. Based on these roles recommendations are presented for future studies and practices

The development of the PARENTS: a tool for parents to assess residents' non-technical skills in pediatric emergency departments.

Science.gov (United States)

Moreau, Katherine A; Eady, Kaylee; Tang, Kenneth; Jabbour, Mona; Frank, Jason R; Campbell, Meaghan; Hamstra, Stanley J

2017-11-14

Parents can assess residents' non-technical skills (NTS) in pediatric emergency departments (EDs). There are no assessment tools, with validity evidence, for parental use in pediatric EDs. The purpose of this study was to develop the Parents' Assessment of Residents Enacting Non-Technical Skills (PARENTS) educational assessment tool and collect three sources of validity evidence (i.e., content, response process, internal structure) for it. We established content evidence for the PARENTS through interviews with physician-educators and residents, focus groups with parents, a literature review, and a modified nominal group technique with experts. We collected response process evidence through cognitive interviews with parents. To examine the internal structure evidence, we administered the PARENTS and performed exploratory factor analysis. Initially, a 20-item PARENTS was developed. Cognitive interviews led to the removal of one closed-ended item, the addition of resident photographs, and wording/formatting changes. Thirty-seven residents and 434 parents participated in the administration of the resulting 19-item PARENTS. Following factor analysis, a one-factor model prevailed. The study presents initial validity evidence for the PARENTS. It also highlights strategies for potentially: (a) involving parents in the assessment of residents, (b) improving the assessment of NTS in pediatric EDs, and (c) capturing parents' perspectives to improve the preparation of future physicians.

Biomedical applications of radionuclide generators with equal decay constants for parent and daughter

International Nuclear Information System (INIS)

Taylor, D.M.

1976-01-01

Reference is made to an article by Spencer and Hosain (Int. J. Appl. Radiat. Isotopes; 27:57 (1976)) on the theoretical aspects of radionuclide generator systems in which the parent and daughter nuclides have equal decay constants in which it was suggested that 'it would be possible to use an appropriate chemical compound of a parent and introduce it in a biological system to study the behaviour of the daughter element'. It is here pointed out that this suggestion assumes that in any biological system the daughter radionuclide produced by the decay of the parent nuclide in vivo will readily enter the general 'metabolic' pool of the daughter element. However studies are cited which have shown that virtually all the daughter radionuclide in many such systems remain within the skeleton and thus it is asserted that the assumption that a daughter radionuclide produced by the decay of a parent nuclide in vivo provides a true tracer for the behaviour of the daughter element is not generally valid, and considerable caution would have to be used in the interpretation of results obtained by this type of study. In a reply, the original authors say that the point made is germane but that the concept was well known to them and hence the use of the expression 'an appropriate chemical compound of a parent...' in their original paper. (U.K.)

Parents' Participation in the Sexuality Education of Their Children in Namibia: A Framework and an Educational Programme for Enhanced Action.

Science.gov (United States)

Nghipondoka-Lukolo, Linda Ndeshipandula; Charles, Kimera Lukanga

2015-08-18

The purpose of the study was to empower rural parents to participate in the sexuality education of their children. The study was designed to be qualitative, explorative, descriptive and contextual in nature. It was performed in three phases. Phase 1 consisted of a situational analysis to explore and describe how parents provide sexuality education. Phase 2 consisted of the development of a conceptual framework that facilitated the development of an educational programme. In phase 3 the programme was implemented and evaluated, recommendations were made and conclusions drawn. The main findings revealed two themes: factors influencing parental participation in their children's sexuality education, and the need for parental participation in their children's sexuality education. This article is part of series of three article stems from a study on the topic of sexuality education empowerment programme of rural parents in Namibia. The three articles have the following titles: one: parent's participation in sexuality education of their children: a situational analysis; two: parent's participation in sexuality education of their children: a conceptual framework and an educational programme to enhance action, and three: parent's participation in sexuality education of their children: programme implementation and evaluation. The previous paper dealt with parent's participation in sexuality education of their children: a situational analysis: the results from the in-depth interviews and focus group discussions on sexuality education with children and parents were presented. This paper focuses on describing Phase 2 and 3, namely the process of devising a conceptual framework for the development of an educational programme to empower parents to participate in the sexuality education of their children. Discussions included a description of the conceptual framework, based on the researcher's paradigmatic assumptions, and the focus group and individual in-depth interviews results

The role of social and cognitive processes in the relationship between fear network and psychological distress among parents of children undergoing hematopoietic stem cell transplantation.

Science.gov (United States)

Virtue, Shannon Myers; Manne, Sharon; Mee, Laura; Bartell, Abraham; Sands, Stephen; Ohman-Strickland, Pamela; Gajda, Tina Marie

2014-09-01

The current study examined whether cognitive and social processing variables mediated the relationship between fear network and depression among parents of children undergoing hematopoietic stem cell transplant (HSCT). Parents whose children were initiating HSCT (N = 179) completed survey measures including fear network, Beck Depression Inventory, cognitive processing variables (positive reappraisal and self-blame) and social processing variables (emotional support and holding back from sharing concerns). Fear network was positively correlated with depression (p fear network and depression. Together they accounted for 34.3% of the variance in the relationship between fear network and depression. Positive reappraisal and emotional support did not have significant mediating effects. Social and cognitive processes, specifically self-blame and holding back from sharing concerns, play a negative role in parents' psychological adaptation to fears surrounding a child's HSCT.

High speed vision processor with reconfigurable processing element array based on full-custom distributed memory

Science.gov (United States)

Chen, Zhe; Yang, Jie; Shi, Cong; Qin, Qi; Liu, Liyuan; Wu, Nanjian

2016-04-01

In this paper, a hybrid vision processor based on a compact full-custom distributed memory for near-sensor high-speed image processing is proposed. The proposed processor consists of a reconfigurable processing element (PE) array, a row processor (RP) array, and a dual-core microprocessor. The PE array includes two-dimensional processing elements with a compact full-custom distributed memory. It supports real-time reconfiguration between the PE array and the self-organized map (SOM) neural network. The vision processor is fabricated using a 0.18 µm CMOS technology. The circuit area of the distributed memory is reduced markedly into 1/3 of that of the conventional memory so that the circuit area of the vision processor is reduced by 44.2%. Experimental results demonstrate that the proposed design achieves correct functions.

Parenting Interventions for Children with Tic Disorders: Professionals? Perspectives

OpenAIRE

Evans, Gemma A. L.; Wittkowski, Anja; Butler, Hannah; Hedderly, Tammy; Bunton, Penny

2015-01-01

Tic disorders can have an emotional and social impact on children and families, which can in turn have a reciprocal impact on tics. Research into parenting interventions within this population is limited. Twenty-five professionals? views on the acceptability, effectiveness, feasibility and utility of parenting interventions were explored using Q-methodology. Three highly correlated factors emerged, indicating three viewpoints with discrete elements that were underpinned by similar general per...

Relationship of microbial processes to the fate and behavior of transuranic elements in soils, plants, and animals

International Nuclear Information System (INIS)

Wildung, R.E.; Garland, T.R.

1977-10-01

This review considers the influence of soil physicochemical and microbial processes on the long-term solubility, form, and bioavailability of plutonium and other transuranic elements important in the nuclear fuel cycle. Emphasis is placed on delineation of the relationships between soil chemical and microbial processes and the role of soil microorganisms in effecting solubilization, transformation and plant/animal uptake of elements considered largely insoluble in soils strictly on the basis of their inorganic chemical characteristics

Talking to children about parental mental illness: The experiences of well parents.

Science.gov (United States)

Ballal, Divya; Navaneetham, Janardhana

2018-06-01

Children of parents with mental illness are not routinely included in psychoeducational and supportive family interventions provided by adult mental health systems. The family, therefore, is an important and, sometimes, the only source of information and support for them. To understand the experiences of well parents in talking to their children about parental mental illness. This article presents the findings of a qualitative study of the experiences of well parents in talking to their children about parental mental illness. Ten well parents whose spouses were diagnosed with a severe mental illness participated in the study. Socio-demographic information, family details and history of the spouse's mental illness along with their experiences of talking to children about parental mental illness, the perceived risks and benefits, challenges they faced and the role of others in the process were recorded. Qualitative data were analysed using interpretative phenomenological analysis. The themes of 'distancing children from parental mental illness', 'avoiding conversations about the illness', 'giving and receiving emotional support', 'providing explanations of the illness' and 'regulating other sources of information' show the complex ways in which well parents influence their children's understanding of parental mental illness. The findings are examined in the background of what is known about this topic from the perspective of children or of the parent with illness. Possible ways to support well parents in families affected by parental mental illness are discussed. This study is a step forward in the understanding of how families talk to children about parental mental illness and provides the perspective of the well parent.

Family identification: A beneficial process for young adults who grow up in homes affected by parental intimate partner violence

Directory of Open Access Journals (Sweden)

Catherine Mary Naughton

2015-08-01

Full Text Available Exposure to parental intimate partner violence (parental IPV is a complex trauma. Research within social psychology establishes that identification with social groups impacts positively on how we appraise, respond to and recover from traumatic events. Intimate partner violence (IPV is also a highly stigmatized social phenomenon and social isolation is a major factor for families affected by IPV, yet strong identification with the family group may act as a beneficial psychological resource to young people who grew up in homes affected by IPV. The current study, an online survey of 355 students (M age = 20, 70% female, investigated if a psychosocial process, specifically identification with the family, may influence the relationship between the predictor, exposure to parental IPV, and outcomes, global self-esteem and state anxiety. Mediation analysis suggests that identification with the family has a positive influence on the relationship between exposure to parental IPV and psychological outcomes; exposure to parental IPV results in reduced family identification, but when family identification is strong it results in both reduced anxiety and increased self-esteem for young people. The findings highlight the importance of having a strong sense of belonging to the extended family for young people who were exposed to parental IPV, thus has implications for prevention, intervention and social policy.

Enrichment of Rare Earth Elements during magmatic and post-magmatic processes: a case study from the Loch Loyal Syenite Complex, northern Scotland

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Walters, A. S.; Goodenough, K. M.; Hughes, H. S. R.; Roberts, N. M. W.; Gunn, A. G.; Rushton, J.; Lacinska, A.

2013-10-01

Concern about security of supply of critical elements used in new technologies, such as the Rare Earth Elements (REE), means that it is increasingly important to understand the processes by which they are enriched in crustal settings. High REE contents are found in syenite-dominated alkaline complexes intruded along the Moine Thrust Zone, a major collisional zone in north-west Scotland. The most northerly of these is the Loch Loyal Syenite Complex, which comprises three separate intrusions. One of these, the Cnoc nan Cuilean intrusion, contains two mappable zones: a Mixed Syenite Zone in which mafic melasyenite is mixed and mingled with leucosyenite and a Massive Leucosyenite Zone. Within the Mixed Syenite Zone, hydrothermal activity is evident in the form of narrow altered veins dominated by biotite and magnetite; these are poorly exposed and their lateral extent is uncertain. The REE mineral allanite is relatively abundant in the melasyenite and is extremely enriched in the biotite-magnetite veins, which have up to 2 % total rare earth oxides in bulk rock analyses. An overall model for development of this intrusion can be divided into three episodes: (1) generation of a Light Rare Earth Element (LREE)-enriched parental magma due to enrichment of the mantle source by subduction of pelagic carbonates; (2) early crystallisation of allanite in melasyenite, due to the saturation of the magma in the LREE; and (3) hydrothermal alteration, in three different episodes identified by petrography and mineral chemistry, generating the intense enrichment of REE in the biotite-magnetite veins. Dating of allanite and titanite in the biotite-magnetite veins gives ages of c. 426 Ma, overlapping with previously published crystallisation ages for zircon in the syenite.

Perceptions of aging among middle-aged offspring of traumatized parents: the effects of parental Holocaust-related communication and secondary traumatization.

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Shrira, Amit

2016-01-01

Traumatized parents may transmit anxieties of physical deterioration and demise to their offspring. These anxieties can amplify negative perceptions of the aging process when the offspring enter old age. The current study examined how middle-aged offspring of Holocaust survivors (OHS) recount trauma-related communication by their parents, and how these reports are related to offspring's perceptions of their aging process. The study included 450 respondents at the age range of 50-67 (mean age = 57.5, SD = 4.6): 300 OHS and 150 comparisons. Participants reported parental communication of the Holocaust, completed measures of subjective successful aging, aging and death anxieties, and reported secondary traumatization assessing symptoms, developed as a result of a close and continuous relationship with a traumatized parent. Latent profile analysis identified two profiles of parental Holocaust-related communication: intrusive and informative. Offspring who reported intrusive parental communication about the Holocaust perceived themselves as aging less successfully and were more anxious of aging and death than comparisons. Offspring who reported informative parental communication and comparisons did not differ in perceptions of aging. Secondary traumatization mediated these group differences, meaning, intrusive parental communication was related to higher secondary traumatization, which in turn was related to less favorable perceptions of aging. These findings allude to the possibility that secondary traumatization mold negative perceptions of the aging process among middle-aged offspring of traumatized parents. Mental health practitioners may help OHS process fragmented and intrusive remnants of parental trauma, thereby diminishing secondary traumatization, and promoting more adaptive perceptions of aging.

Parenting intervention and the caregiving environment : cumulative risk and process evaluation

NARCIS (Netherlands)

Stolk, Mirjam Neeltje

2007-01-01

The objective of the research described in this thesis was to study single and cumulative family risk in relation to early childhood externalizing problems and the effectiveness of a parenting intervention program. The Video-feedback Intervention to promote Positive Parenting and Sensitive

NON-LINEAR FINITE ELEMENT MODELING OF DEEP DRAWING PROCESS

Directory of Open Access Journals (Sweden)

Hasan YILDIZ

2004-03-01

Full Text Available Deep drawing process is one of the main procedures used in different branches of industry. Finding numerical solutions for determination of the mechanical behaviour of this process will save time and money. In die surfaces, which have complex geometries, it is hard to determine the effects of parameters of sheet metal forming. Some of these parameters are wrinkling, tearing, and determination of the flow of the thin sheet metal in the die and thickness change. However, the most difficult one is determination of material properties during plastic deformation. In this study, the effects of all these parameters are analyzed before producing the dies. The explicit non-linear finite element method is chosen to be used in the analysis. The numerical results obtained for non-linear material and contact models are also compared with the experiments. A good agreement between the numerical and the experimental results is obtained. The results obtained for the models are given in detail.

Method of manufacturing iron aluminide by thermomechanical processing of elemental powders

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Deevi, Seetharama C.; Lilly, Jr., A. Clifton; Sikka, Vinod K.; Hajaligol, Mohammed R.

2000-01-01

A powder metallurgical process of preparing iron aluminide useful as electrical resistance heating elements having improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The iron aluminide has an entirely ferritic microstructure which is free of austenite and can include, in weight %, 20 to 32% Al, and optional additions such as .ltoreq.1% Cr, .gtoreq.05% Zr or ZrO.sub.2 stringers extending perpendicular to an exposed surface of the heating element, .ltoreq.2% Ti, .ltoreq.2% Mo, .ltoreq.1% Zr, .ltoreq.1% C, .ltoreq.0.1% B, .ltoreq.30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, .ltoreq.1 % rare earth metal, .ltoreq.1% oxygen, and/or .ltoreq.3% Cu. The process includes forming a mixture of aluminum powder and iron powder, shaping the mixture into an article such as by cold rolling the mixture into a sheet, and sintering the article at a temperature sufficient to react the iron and aluminum powders and form iron aluminide. The sintering can be followed by hot or cold rolling to reduce porosity created during the sintering step and optional annealing steps in a vacuum or inert atmosphere.

A Latent Profile Analysis of Latino Parenting: The Infusion of Cultural Values on Family Conflict

OpenAIRE

Ayón, Cecilia; Williams, Lela Rankin; Marsiglia, Flavio F.; Ayers, Stephanie; Kiehne, Elizabeth

2015-01-01

The purpose of the present study was to (a) examine how acculturation and social support inform Latinos’ parenting behaviors, controlling for gender and education; (b) describe parenting styles among Latino immigrants while accounting for cultural elements; and (c) test how these parenting styles are associated with family conflict. A 3 step latent profile analysis with the sample (N = 489) revealed best fit with a 4 profile model (n = 410) of parenting: family parenting (n = 268, 65%), child...

The Association of Parent Mindfulness with Parenting and Youth Psychopathology Across Three Developmental Stages.

Science.gov (United States)

Parent, Justin; McKee, Laura G; N Rough, Jennifer; Forehand, Rex

2016-01-01

The primary purpose of the current study was to test a model examining the process by which parent dispositional mindfulness relates to youth psychopathology through mindful parenting and parenting practices. The universality of the model across youth at three developmental stages was examined: young childhood (3-7 years; n = 210), middle childhood (8-12 years; n = 200), and adolescence (13-17 years; n = 205). Overall, participants were 615 parents (55% female) and one of their 3-to-17 year old children (45% female). Parents reported on their dispositional mindfulness, mindful parenting, positive and negative parenting practices and their child's or adolescent's internalizing and externalizing problems. Consistent findings across all three developmental stages indicated that higher levels of parent dispositional mindfulness were indirectly related to lower levels of youth internalizing and externalizing problems through higher levels of mindful parenting and lower levels of negative parenting practices. Replication of these findings across families with children at different developmental stages lends support to the generalizability of the model.

Evolution of the Campanian Ignimbrite Magmatic System II: Trace Element and Th Isotopic Evidence for Open-System Processes

Science.gov (United States)

Bohrson, W. A.; Spera, F. J.; Fowler, S.; Belkin, H.; de Vivo, B.

2005-12-01

The Campanian Ignimbrite, a large volume (~200 km3 DRE) trachytic to phonolitic ignimbrite was deposited at ~39.3 ka and represents the largest of a number of highly explosive volcanic events in the region near Naples, Italy. Thermodynamic modeling of the major element evolution using the MELTS algorithm (see companion contribution by Fowler et al.) provides detailed information about the identity of and changes in proportions of solids along the liquid line of descent during isobaric fractional crystallization. We have derived trace element mass balance equations that explicitly accommodate changing mineral-melt bulk distribution coefficients during crystallization and also simultaneously satisfy energy and major element mass conservation. Although major element patterns are reasonably modeled assuming closed system fractional crystallization, modeling of trace elements that represent a range of behaviors (e.g. Zr, Nb, Th, U, Rb, Sm, Sr) yields trends for closed system fractionation that are distinct from those observed. These results suggest open-system processes were also important in the evolution of the Campanian magmatic system. Th isotope data yield an apparent isochron that is ~20 kyr younger than the age of the deposit, and age-corrected Th isotope data indicate that the magma body was an open-system at the time of eruption. Because open-system processes can profoundly change isotopic characteristics of a magma body, these results illustrate that it is critical to understand the contribution that open-system processes make to silicic magma bodies prior to assigning relevance to age or timescale information derived from isotope systematics. Fluid-magma interaction has been proposed as a mechanism to change isotopic and elemental characteristics of magma bodies, but an evaluation of the mass and thermal constraints on such a process suggest large-scale fluid-melt interaction at liquidus temperatures is unlikely. In the case of the magma body associated with

Parent attitudes toward integrating parent involvement into teenage driver education courses.

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Hartos, Jessica; Huff, David C

2008-01-01

The widespread adoption of graduated driver licensing (GDL) policies has effectively reduced crash risk for young drivers; however, parents must support, reinforce, and enforce GDL for it to be effective, and research indicates that parents need better information and instruction for adhering to GDL requirements, conducting supervised practice driving, and restricting independent teenage driving. Because teenagers in most states must take driver education to enter the licensing process prior to age 18, integrating parent involvement into driver education may be an effective way to inform and instruct parents on a large scale about teen driver safety. This study assessed parent attitudes (overall and by rural status, minority status, and income level) toward integrating parent involvement into teenage driver education classes. In this study, 321 parents of teenagers enrolled in driver education classes across the state of Montana completed surveys about current involvement in driver education and attitudes toward required involvement. The results indicated that parents were not very involved currently in their teenagers' driver education classes, but 76% reported that parents should be required to be involved. If involvement were required, parents would prefer having written materials sent home, access to information over the Internet, or discussions in person with the instructor; far fewer would prefer to attend classes or behind-the-wheel driving instruction. There were few differences in parent attitudes by rural or minority status but many by income level. Compared to higher income parents, lower income parents were more likely to endorse required parent involvement in teenage driver education classes and to want parent information from driver education about many teen driving issues. That the majority of parents are open to required involvement in their teenagers' driver education classes is promising because doing so could better prepare parents to understand

Disruption of parent participation: nurses' strategies to manage parents on children's wards.

Science.gov (United States)

Coyne, Imelda

2008-12-01

To investigate parent participation in the hospitalized child's care from the perspectives of children, parents and nurses. Parent participation in the hospitalized child's care has been increasingly promoted in paediatric nursing for many years because it ameliorates the adverse aspects of hospitalization, avoids parental separation and contributes to quality care for sick children. Parent participation is assumed to be unproblematic but evidence exists that nurses often have difficulty caring for parents. Using grounded method, data were collected through in-depth interviews, questionnaires and observation with 12 nurses from four paediatric wards in two hospitals in England. The dominant process appeared to be the socialization of parents to their role on the ward through inclusionary and exclusionary tactics. Nurses controlled the nature of parents' participation and parents had to 'toe the line'. Although participation was presented as optional, parents were presented with no course other than acceptance. Parents were expected to stay with their child, behave properly and be involved in care. When parents did not adhere to these norms, they caused disruption to the order and routine of the ward. Compliance or non-compliance to the set of norms and rules was followed by reward or punishment. The nurses' dependence on parents' active participation in the organization and delivery of the work suggests that parent participation as it is practised is clearly about administrative efficiency, not consumer empowerment. Organizational and managerial issues must be examined to ensure that nurses are adequately prepared and resourced to support parents on the ward. Continuing assessment of parents' expectations though a structured assessment tool would help reduce misunderstandings and conflict. Nurses should assess the situational context before relying on subjective impressions and assumptions about parents' participation in care.

Source/process apportionment of major and trace elements in sinking particles in the Sargasso sea

Science.gov (United States)

Huang, S.; Conte, M. H.

2009-01-01

Elemental composition of the particle flux at the Oceanic Flux Program (OFP) time-series site off Bermuda was measured from January 2002 to March 2005. Eighteen elements (Mg, Al, Si, P, Ca, Sc, Ti, V, Mn, Fe, Co, Ni, Cu, Zn, Sr, Cd, Ba and Pb) in sediment trap material from 500, 1500 and 3200 m depths were quantified using fusion-HR-ICPMS. Positive Matrix Factorization (PMF) was used to elucidate sources, elemental associations and processes that affect geochemical behavior in the water column. Results provide evidence for intense elemental cycling between the sinking flux material and the dissolved and suspended pools within mesopelagic and bathypelagic waters. Biological processing and remineralization rapidly deplete the sinking flux material in organic matter and associated elements (N, P, Cd, Zn) between 500 and 1500 m depth. Suspended particle aggregation, authigenic mineral precipitation, and chemical scavenging enriches the flux material in lithogenic minerals, barite and redox sensitive elements (Mn, Co, V, Fe). A large increase in the flux of lithogenic elements is observed with depth and confirms that the northeast Sargasso is a significant sink for advected continental materials, likely supplied via Gulf Stream circulation. PMF resolved major sources that contribute to sinking flux at all depths (carbonate, high-Mg carbonate, opal, organic matter, lithogenic material, and barite) as well as additional depth-specific elemental associations that contribute about half of the compositional variability in the flux. PMF solutions indicate close geochemical associations of barite-opal, Cd-P, Zn-Co, Zn-Pb and redox sensitive elements in the sinking flux material at 500 m depth. Major reorganizations of element associations occur as labile carrier phases break down and elements redistribute among new carrier phases deeper in the water column. Factor scores show strong covariation and similar temporal phasing among the three trap depths and indicate a tight

Path Analysis: Health Promotion Information Access of Parent Caretaking Pattern through Parenting Education

Science.gov (United States)

Sunarsih, Tri; Murti, Bhisma; Anantanyu, Sapja; Wijaya, Mahendra

2016-01-01

Parents often inhibit learning process organized by education, due to their ignorance about how to educate child well. Incapability of dealing with those changes leads to dysfunctional families, and problematic children. This research aimed: to analyzed the health promotion information access pattern of parent caretaking pattern through parenting…

Culturally and Linguistically Diverse Parents' Perceptions of the IEP Process

Science.gov (United States)

Wolfe, Katie; Durán, Lillian K.

2013-01-01

Many parents of students with disabilities face barriers to meaningful participation in Individualized Education Plan (IEP) meetings; parents who are culturally and linguistically diverse (CLD) encounter additional challenges. Given the changing demographics of the United States and the central role of the IEP in special education, it is important…

“If it Feels Good…”: Research on School Selection Process Motives Among Parents of Young Children

NARCIS (Netherlands)

ter Avest, I.; Bertram-Troost, G.D.; Miedema, S.

2015-01-01

From (inter)national research we know about parents’ priorities in the school selection process. In this research the authors focus on parents’ motivations underpinning these priorities. The question is: “What motivates parents to send their child to a Christian primary school?” In the Dutch plural

Community factors to promote parents' quality of child-nurturing life.

Science.gov (United States)

Aoyama, Megumi; Wei, Chang Nian; Chang-nian, Wei; Harada, Koichi; Ueda, Kimiyo; Takano, Miyuki; Ueda, Atsushi

2013-01-01

The purpose of this study was to clarify the role of community factors in parents' quality of child-nurturing life (QCNL). We developed a questionnaire to evaluate the degree of QCNL and determine the structural factors related to QCNL as community factors related to parents' QCNL derived from focus group interviews and the Delphi technique. The questionnaire also included the battery of the self-rating depression scale and Tsumori-Inage Infant's Developmental Test. Using the questionnaire, we then conducted a quantitative survey of parents whose children attended nursery schools in Kumamoto Prefecture. Factor analysis, calculation of the mean score and/or ratio to each item, Pearson's correlation coefficient, t test, multiple regression analysis, and covariance structure analysis were performed. The questionnaire we developed consisted of seven items with 75 elements, involving ten elements as community factors. Subjects included 699 parents (mean age 33.6 ± 5.4 years) and 965 children (age range 0-6 years). Factor analysis revealed that community factors consisted of five factors, such as "lifestyle rooted in the ground," "balance of housekeeping and work," "community network," "amenity," and "regeneration of life". These factors may be dominant in a rural area. Finally, we developed a structural model with "community factors," QCNL, QOL, and "child growth" by covariance structural analysis. The analysis revealed that community factors had a positive relation to parents' QCNL (r = 0.81, p < 0.001) and that parental SDS score had a negative relation to parents' QCNL (r = -0.59, p < 0.001). The analysis did show that community factors were positively related to the sound growth of children. The covariance structure analysis revealed that community factors were associated with parents' QCNL, SDS, and "child growth."

Developmental plasticity and the evolution of parental effects.

Science.gov (United States)

Uller, Tobias

2008-08-01

One of the outstanding challenges for evolutionary biologists is to understand how developmental plasticity can influence the evolutionary process. Developmental plasticity frequently involves parental effects, which might enable adaptive and context-dependent transgenerational transmission of phenotypic strategies. However, parent-offspring conflict will frequently result in parental effects that are suboptimal for parents, offspring or both. The fitness consequences of parental effects at evolutionary equilibrium will depend on how conflicts can be resolved by modifications of developmental processes, suggesting that proximate studies of development can inform ultimate questions. Furthermore, recent studies of plants and animals show how studies of parental effects in an ecological context provide important insights into the origin and evolution of adaptation under variable environmental conditions.

The Effect of Parental Modeling on Child Pain Responses: The Role of Parent and Child Sex.

Science.gov (United States)

Boerner, Katelynn E; Chambers, Christine T; McGrath, Patrick J; LoLordo, Vincent; Uher, Rudolf

2017-06-01

Social modeling is a process by which pain behaviors are learned, and research has found parents act as models for their children's behavior. Despite social learning theory predicting that same-sex models have greater effect, no experimental investigation to date has examined the role of sex of the model or observer in social learning of pediatric pain. The present study recruited 168 parent-child dyads (equal father-son, father-daughter, mother-son, and mother-daughter dyads) in which children were generally healthy and 6 to 8 years old. Unbeknownst to their child, parents were randomly assigned to exaggerate their expression of pain, minimize their expression of pain, or act naturally during the cold pressor task (CPT). Parents completed the CPT while their child observed, then children completed the CPT themselves. Children whose parents were in the exaggerate condition reported higher anxiety than children of parents in the minimize condition. Additionally, girls in the exaggerate condition rated their overall pain intensity during the CPT significantly higher than boys in the same condition. No child sex differences were observed in pain intensity for the control or minimize conditions. Parent expressions of pain affects children's anxiety, and sex-specific effects of parental exaggerated pain expression on children's own subsequent pain experience are present. This article describes how parental expressions of pain influence children's pain and anxiety, specifically examining the relevance of parent and child sex in this process. These findings have implications for children of parents with chronic pain, or situations in which parents experience pain in the presence of their child (eg, vaccinations). Copyright © 2017 American Pain Society. Published by Elsevier Inc. All rights reserved.

Modelling of destructive ability of water-ice-jet while machine processing of machine elements

Directory of Open Access Journals (Sweden)

Burnashov Mikhail

2017-01-01

Full Text Available This paper represents the classification of the most common contaminants, appearing on the surfaces of machine elements after a long-term service.The existing well-known surface cleaning methods are described and analyzed in the framework of this paper. The article is intended to provide the reader with an understanding of the process of cleaning and removing contamination from machine elements surface by means of water-ice-jet with preprepared beforehand particles, as well as the process of water-ice-jet formation. The paper deals with the description of such advantages of this method as low costs, wastelessness, high quality of the surface, undergoing processing, minimization of harmful impact upon environment and eco-friendliness, which makes it differ radically from formerly known methods. The scheme of interection between the surface and ice particle is represented. A thermo-physical model of destruction of contaminants by means of a water-ice-jet cleaning technology was developed on its basis. The thermo-physical model allows us to make setting of processing mode and the parameters of water-ice-jet scientifically substantiated and well-grounded.

3D finite element modelling of sheet metal blanking process

Science.gov (United States)

Bohdal, Lukasz; Kukielka, Leon; Chodor, Jaroslaw; Kulakowska, Agnieszka; Patyk, Radoslaw; Kaldunski, Pawel

2018-05-01

The shearing process such as the blanking of sheet metals has been used often to prepare workpieces for subsequent forming operations. The use of FEM simulation is increasing for investigation and optimizing the blanking process. In the current literature a blanking FEM simulations for the limited capability and large computational cost of the three dimensional (3D) analysis has been largely limited to two dimensional (2D) plane axis-symmetry problems. However, a significant progress in modelling which takes into account the influence of real material (e.g. microstructure of the material), physical and technological conditions can be obtained by using 3D numerical analysis methods in this area. The objective of this paper is to present 3D finite element analysis of the ductile fracture, strain distribution and stress in blanking process with the assumption geometrical and physical nonlinearities. The physical, mathematical and computer model of the process are elaborated. Dynamic effects, mechanical coupling, constitutive damage law and contact friction are taken into account. The application in ANSYS/LS-DYNA program is elaborated. The effect of the main process parameter a blanking clearance on the deformation of 1018 steel and quality of the blank's sheared edge is analyzed. The results of computer simulations can be used to forecasting quality of the final parts optimization.

Toward Improved Parenting Interventions for Disruptive Child Behavior : Engaging Disadvantaged Families and Searching for Effective Elements

NARCIS (Netherlands)

Leijten, P.H.O.

2014-01-01

Parenting interventions are a promising strategy to prevent antisocial behavior in society. Evidence accumulates that parenting interventions can reduce disruptive child behavior, and insight rapidly increases into which families they benefit most. At the same time, however, several high risk

Parental Depression and Economic Disadvantage: The Role of Parenting in Associations with Internalizing and Externalizing Symptoms in Children and Adolescents.

Science.gov (United States)

Reising, Michelle M; Watson, Kelly H; Hardcastle, Emily J; Merchant, Mary Jane; Roberts, Lorinda; Forehand, Rex; Compas, Bruce E

2013-04-01

This study examined the effects of parental depression symptoms, economic disadvantage, and parenting behaviors in 180 children and adolescents of depressed parents (ages 9-15 years-old). Analyses revealed that while parental depression symptoms, economic disadvantage, and disrupted parenting behaviors were related to children's internalizing and externalizing symptoms, disrupted parenting (e.g., intrusive, neglectful parenting) accounted for the association of parental depressive symptoms and economic disadvantage with children's symptoms. This study provides evidence that disrupted parenting may be a common or shared process through which both parental depression and economic disadvantage are associated with children's internalizing and externalizing problems.

The Decision-Making Processes of Early Childhood Teachers When Working with Children Experiencing Parental Separation and Divorce

Science.gov (United States)

Mahony, L.; Lunn, J.; Petriwskyj, A.; Walsh, K.

2015-01-01

In this study, the pedagogical decision-making processes of 21 Australian early childhood teachers working with children experiencing parental separation and divorce were examined. Transcripts from interviews and a focus group with teachers were analysed using grounded theory methodology. The findings showed that as teachers interacted with young…

Using rare earth element tracers and neutron activation analysis to study rill erosion process

International Nuclear Information System (INIS)

Li Mian; Li Zhanbin; Ding Wengfeng; Liu Puling; Yao Wenyi

2006-01-01

Spatially averaged soil erosion data provide little information on the process of rill erosion. The dynamically varied data on the temporal and spatial distributions in the rill erosion process are needed to better understand the erosion process and reveal its innate characteristics. The objectives of this study were to examine the feasibility and effectiveness of rare earth element (REE) tracers and the neutron activation analysis (NAA) method on the study of the rill erosion process and to reveal quantitatively the relationships and characteristics of temporal and spatial distributions of sediment yield in rill erosion. Four REEs were used to study the changeable process of rill erosion at 4 slope positions. Four water inflow rates were applied to a 0.3x5 m soil bed at 3 slopes of 10.5%, 15.8% and 21.2% in scouring experiments. All of the runoff was collected in the experiment. Each sample was air-dried and well mixed. Then 20 g of each sample was sieved through 100-mesh and about a 50 mg sample was weighed for analysis of the four elemental compositions by NAA. Results indicate that the REE tracers and NAA method can be used to not only quantitatively determine soil erosion amounts on different slope segments, but also to reveal the changeable process of rill erosion amount. All of the relative errors of the experimental results were less than 25%, which is considered satisfactory on the study of rill erosion process

Using rare earth element tracers and neutron activation analysis to study rill erosion process

Energy Technology Data Exchange (ETDEWEB)

Li Mian [Yellow River Institute of Hydraulic Research, Yellow River Conservancy Commission, Key Laboratory of Yellow River Sediment Research of Ministry of Water Resources, Shunhelu 45, Zhengzhou, Henan 450003 (China)]. E-mail: hnli-mian@163.com; Li Zhanbin [Xi' an University of Technology, Xi' an, Shaanxi 710048 (China); Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100 (China); Ding Wengfeng [Institute of Soil and Water Conservation, Yangtse River' s Scientific Research Institute, Wuhan, Hubei 430010 (China); Liu Puling [Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100 (China); Yao Wenyi [Yellow River Institute of Hydraulic Research, Yellow River Conservancy Commission, Key Laboratory of Yellow River Sediment Research of Ministry of Water Resources, Shunhelu 45, Zhengzhou, Henan 450003 (China)

2006-03-15

Spatially averaged soil erosion data provide little information on the process of rill erosion. The dynamically varied data on the temporal and spatial distributions in the rill erosion process are needed to better understand the erosion process and reveal its innate characteristics. The objectives of this study were to examine the feasibility and effectiveness of rare earth element (REE) tracers and the neutron activation analysis (NAA) method on the study of the rill erosion process and to reveal quantitatively the relationships and characteristics of temporal and spatial distributions of sediment yield in rill erosion. Four REEs were used to study the changeable process of rill erosion at 4 slope positions. Four water inflow rates were applied to a 0.3x5 m soil bed at 3 slopes of 10.5%, 15.8% and 21.2% in scouring experiments. All of the runoff was collected in the experiment. Each sample was air-dried and well mixed. Then 20 g of each sample was sieved through 100-mesh and about a 50 mg sample was weighed for analysis of the four elemental compositions by NAA. Results indicate that the REE tracers and NAA method can be used to not only quantitatively determine soil erosion amounts on different slope segments, but also to reveal the changeable process of rill erosion amount. All of the relative errors of the experimental results were less than 25%, which is considered satisfactory on the study of rill erosion process.

Parental Perceived Control and Social Support: Linkages to Change in Parenting Behaviors During Early Adolescence.

Science.gov (United States)

Lippold, Melissa A; Glatz, Terese; Fosco, Gregory M; Feinberg, Mark E

2018-06-01

Prior studies have found that parents' perceptions of control over their lives and their social support may both be important for parenting behaviors. Yet, few studies have examined their unique and interacting influence on parenting behaviors during early adolescence. This longitudinal study of rural parents in two-parent families (N = 636) investigated (a) whether perceived control and social support when their youth were in sixth grade were independently or interactively associated with changes in parenting behaviors (discipline, standard setting) and parent-child warmth and hostility 6 months later and (b) if these linkages differed by parent gender. We also investigated the interactive links between perceived control, social support, and parenting. Specifically, we tested if parents' perceived control moderated the linkages between social support and parenting and if these linkages differed by parent gender. Greater perceived control predicted more increases in parents' consistent discipline and standard setting, whereas greater social support predicted increases in parent-child warmth and decreases in parent-child hostility. Parental perceived control moderated the effect of social support on parental warmth: For mothers only, social support was significantly linked to parent-child warmth only when mothers had low (but not high) perceived self-control. The discussion focuses on reasons why perceived control and social support may have associations with different aspects of parenting and why these might differ for mothers and fathers. © 2017 Family Process Institute.

DETECTION OF THE SECOND r-PROCESS PEAK ELEMENT TELLURIUM IN METAL-POOR STARS ,

International Nuclear Information System (INIS)

Roederer, Ian U.; Lawler, James E.; Cowan, John J.; Beers, Timothy C.; Frebel, Anna; Ivans, Inese I.; Schatz, Hendrik; Sobeck, Jennifer S.; Sneden, Christopher

2012-01-01

Using near-ultraviolet spectra obtained with the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope, we detect neutral tellurium in three metal-poor stars enriched by products of r-process nucleosynthesis, BD +17 3248, HD 108317, and HD 128279. Tellurium (Te, Z = 52) is found at the second r-process peak (A ≈ 130) associated with the N = 82 neutron shell closure, and it has not been detected previously in Galactic halo stars. The derived tellurium abundances match the scaled solar system r-process distribution within the uncertainties, confirming the predicted second peak r-process residuals. These results suggest that tellurium is predominantly produced in the main component of the r-process, along with the rare earth elements.

Evaluation of family-centred services from parents of Chinese children with cerebral palsy with the Measure of Processes of Care.

Science.gov (United States)

Wang, M; Petrini, M A; Guan, Q

2015-05-01

Family-centred service (FCS) has become essential to parents of children with cerebral palsy (CP) and professionals in Chinese paediatric rehabilitation services. FCS practice meets the unique needs of the child and family, through facilitation of optimal service provision delivered by professionals, and ensures service systems to be flexible, appropriate and actively responsive to the family needs. Parents used the Measure of Processes of Care 20 (MPOC-20) questionnaire to evaluate and verify the efficacy of use in China. The aims of the present study were twofold: to assess the validity and reliability of the Chinese MPOC-20, and investigate the range of parents' satisfaction with service provision in an FCS practice using the MPOC-20. The Chinese MPOC-20 was selected to assess parent satisfaction with service provision of professionals in FCS practice. Participants were parents of children under 8 years of age with CP, who had received rehabilitation services between May 2012 and May 2013, and were receiving rehabilitation services in May 2013 at a hospital outpatient department and a rehabilitation centre. The reliability and validity of the Chinese MPOC-20 were confirmed. Parents evaluated FCS practice with the MPOC-20 survey. Respectful and supportive care was rated with the highest score and providing general information the lowest. Parents according to the data were dissatisfied with the lack of information. Parents fairly evaluated service provision of professionals in FCS practice with the Chinese MPOC-20. Professionals received feedback reports of parents, summaries of the inadequacy of service delivery, and developed and implemented ameliorated measures in the FCS policy to strive to provide exemplary service. © 2014 John Wiley & Sons Ltd.

"Giving us hope": Parent and neonatal staff views and expectations of a planned family-centred discharge process (Train-to-Home).

Science.gov (United States)

Ingram, Jenny; Redshaw, Maggie; Manns, Sarah; Beasant, Lucy; Johnson, Debbie; Fleming, Peter; Pontin, David

2017-08-01

Preparing families and preterm infants for discharge is relatively unstructured in many UK neonatal units (NNUs). Family-centred neonatal care and discharge planning are recommended but variable. Qualitative interviews with 37 parents of infants in NNUs, and 18 nursing staff and 5 neonatal consultants explored their views of discharge planning and perceptions of a planned family-centred discharge process (Train-to-Home). Train-to-Home facilitates communication between staff and parents throughout the neonatal stay, using a laminated train and parent booklets. Parents were overwhelmingly positive about Train-to-Home. They described being given hope, feeling in control and having something visual to show their baby's progress. They reported positive involvement of fathers and families, how predicted discharge dates helped them prepare for home and ways staff engaged with Train-to-Home when communicating with them. Nursing staff reactions were mixed-some were uncertain about when to use it, but found the visual images powerful. Medical staff in all NNUs were positive about the intervention recognizing that it helped in communicating better with parents. Using a parent-centred approach to communication and informing parents about the needs and progress of their preterm infant in hospital is welcomed by parents and many staff. This approach meets the recommended prioritization of family-centred care for such families. Predicted discharge dates helped parents prepare for home, and the ways staff engaged with Train-to-Home when communicating with them helped them feel more confident as well as having something visual to show their baby's progress. © 2016 The Authors. Health Expectations Published by John Wiley & Sons Ltd.

Glassfrog embryos hatch early after parental desertion

OpenAIRE

Delia, Jesse R. J.; Ramírez-Bautista, Aurelio; Summers, Kyle

2014-01-01

Both parental care and hatching plasticity can improve embryo survival. Research has found that parents can alter hatching time owing to a direct effect of care on embryogenesis or via forms of care that cue the hatching process. Because parental care alters conditions critical for offspring development, hatching plasticity could allow embryos to exploit variation in parental behaviour. However, this interaction of parental care and hatching plasticity remains largely unexplored. We tested th...

The impact of family intactness on family functioning, parental control and parent-child relational qualities in a Chinese context

Directory of Open Access Journals (Sweden)

Daniel Tan Lei Shek

2015-01-01

Full Text Available The current study investigated the differences between intact and non-intact families in family processes, including systematic family functioning, parental behavioral control, parental psychological control, and parent-child relational qualities. The participants were 3,328 Secondary One students, with a mean age of 12.59 years, recruited from 28 secondary schools in Hong Kong. Four validated scales were used to assess family processes. Results showed that adolescents in non-intact families perceived relatively poorer family functioning, lower level of paternal and maternal behavioral control, lower level of paternal psychological control and poorer parent-child relational qualities than did adolescents in intact families. This generally indicated that family processes were poorer in non-intact families, compared with those in intact families. The theoretical and practical implications of the findings were discussed.

"Lay epidemiology": an important factor in Danish parents' decision of whether to allow their child to receive a BCG vaccination. A qualitative exploration of parental perspective.

Science.gov (United States)

Pihl, Gitte Thybo; Johannessen, Helle; Ammentorp, Jette; Jensen, Jane Schmidt; Kofoed, Poul-Erik

2017-11-21

Vaccination is used worldwide to prevent infectious diseases. However, vaccination programmes in western countries face challenges in sustaining high coverage rates. The aim of this study was to explore how parents in Denmark make a decision about whether to allow their child to receive a Bacille Calmette Guerin vaccine at birth for the purpose of achieving non-specific effects on the immune system. A total of five focus groups were conducted with expectant mothers and fathers. Written information about the vaccine and information about the hypothesis of non-specific effects of the vaccine were delivered in order to discuss considerations and determinants of parents' decisions. Heritable factors and the possibility of stimulating the immune system of the child to achieve less atopic diseases and fewer infections were identified as arguments in favour of receiving the BCG vaccine. Arguments against receiving BCG mainly focused on concerns about its described and non-described side effects. Both arguments for and arguments against the vaccine were seen as parents attempt to make an individual risk evaluation for their child. Attitudes and beliefs in the local network were identified as important for parents' decisions. It is discussed how "lay epidemiology" characterizes parents' risk evaluation as an individual addition to the population-based risk declaration. It is furthermore discussed how health professionals should engage with both the empirical element and the value element of "Lay epidemiology". "Lay epidemiology" forms the basis for the parental decision of whether to allow their child to receive a BCG vaccination. Attitudes and beliefs about the causes and distribution of illnesses in the family or local network influence parents' risk evaluations. It would be ideal for parents if health professionals focused their communication about the BCG vaccine on individual risk evaluations.

Thermal analysis of fused deposition modeling process using infrared thermography imaging and finite element modeling

Science.gov (United States)

Zhou, Xunfei; Hsieh, Sheng-Jen

2017-05-01

After years of development, Fused Deposition Modeling (FDM) has become the most popular technique in commercial 3D printing due to its cost effectiveness and easy-to-operate fabrication process. Mechanical strength and dimensional accuracy are two of the most important factors for reliability of FDM products. However, the solid-liquid-solid state changes of material in the FDM process make it difficult to monitor and model. In this paper, an experimental model was developed to apply cost-effective infrared thermography imaging method to acquire temperature history of filaments at the interface and their corresponding cooling mechanism. A three-dimensional finite element model was constructed to simulate the same process using element "birth and death" feature and validated with the thermal response from the experimental model. In 6 of 9 experimental conditions, a maximum of 13% difference existed between the experimental and numerical models. This work suggests that numerical modeling of FDM process is reliable and can facilitate better understanding of bead spreading and road-to-road bonding mechanics during fabrication.

Volatile element trends in gas-rich meteorites

Energy Technology Data Exchange (ETDEWEB)

Bart, G; Lipschutz, M E [Purdue Univ., Lafayette, IN (USA). Dept. of Chemistry

1979-09-01

Study of 10 volatile elements (and non-volatile Co) in co-existing light and dark portions of 5 gas-rich chondrites indicates patterns of distinct but non-uniform enrichment of volatile elements. Only Cs is enriched in all samples; Bi and Tl enrichments covary. The observed enrichments are inconsistent with prior suggestions of admixture of C1 or C2 chondritic matter, whether pristine or partly devolatilized, but suggest that both light and dark portions of each chondrite represents a compositionally more extended sampling of parental nebular material than hitherto known.

Promoting parenting to support reintegrating military families: after deployment, adaptive parenting tools.

Science.gov (United States)

Gewirtz, Abigail H; Pinna, Keri L M; Hanson, Sheila K; Brockberg, Dustin

2014-02-01

The high operational tempo of the current conflicts and the unprecedented reliance on National Guard and Reserve forces highlights the need for services to promote reintegration efforts for those transitioning back to civilian family life. Despite evidence that parenting has significant influence on children's functioning, and that parenting may be impaired during stressful family transitions, there is a dearth of empirically supported psychological interventions tailored for military families reintegrating after deployment. This article reports on the modification of an empirically supported parenting intervention for families in which a parent has deployed to war. A theoretical rationale for addressing parenting during reintegration after deployment is discussed. We describe the intervention, After Deployment, Adaptive Parenting Tools (ADAPT), and report early feasibility and acceptability data from a randomized controlled effectiveness trial of ADAPT, a 14-week group-based, Web-enhanced parenting training program. Among the first 42 families assigned to the intervention group, participation rates were high, and equal among mothers and fathers. Satisfaction was high across all 14 sessions. Implications for psychological services to military families dealing with the deployment process are discussed. PsycINFO Database Record (c) 2014 APA, all rights reserved.

Feasibility Study for Monitoring Actinide Elements in Process Materials Using FO-LIBS at Advanced spent fuel Conditioning Process Facility

Energy Technology Data Exchange (ETDEWEB)

Han, Bo-Young; Choi, Daewoong; Park, Se Hwan; Kim, Ho-Dong [Nonproliferation System Research Division, Korea Atomic Energy Research Institute, Daejeon, 305-353 (Korea, Republic of); Dae, Dongsun [Department of Chemistry, Mokpo National University, Jeonnam 534-729 (Korea, Republic of); Whitehouse, Andrew I. [Applied Photonics Ltd., Unit 8 Carleton Business Park, Skipton, North Yorkshire BD23 2DE (United Kingdom)

2015-07-01

Korea Atomic Energy Research Institute (KAERI) have been developing the design and deployment methodology of Laser- Induced Breakdown Spectroscopy (LIBS) instrument for safeguards application within the argon hot cell environment at Advanced spent fuel Conditioning Process Facility (ACPF), where ACPF is a facility being refurbished for the laboratory-scaled demonstration of advanced spent fuel conditioning process. LIBS is an analysis technology used to measure the emission spectra of excited elements in the local plasma of a target material induced by a laser. The spectra measured by LIBS are analyzed to verify the quality and quantity of the specific element in the target matrix. Recently LIBS has been recognized as a promising technology for safeguards purposes in terms of several advantages including a simple sample preparation and in-situ analysis capability. In particular, a feasibility study of LIBS to remotely monitor the nuclear material in a high radiation environment has been carried out for supporting the IAEA safeguards implementation. Fiber-Optic LIBS (FO-LIBS) deployment was proposed by Applied Photonics Ltd because the use of fiber optics had benefited applications of LIBS by delivering the laser energy to the target and by collecting the plasma light. The design of FO-LIBS instrument for the measurement of actinides in the spent fuel and high temperature molten salt at ACPF had been developed in cooperation with Applied Photonics Ltd. FO-LIBS has some advantages as followings: the detectable plasma light wavelength range is not limited by the optical properties of the thick lead-glass shield window and the potential risk of laser damage to the lead-glass shield window is not considered. The remote LIBS instrument had been installed at ACPF and then the feasibility study for monitoring actinide elements such as uranium, plutonium, and curium in process materials has been carried out. (authors)

Feasibility Study for Monitoring Actinide Elements in Process Materials Using FO-LIBS at Advanced spent fuel Conditioning Process Facility

International Nuclear Information System (INIS)

Han, Bo-Young; Choi, Daewoong; Park, Se Hwan; Kim, Ho-Dong; Dae, Dongsun; Whitehouse, Andrew I.

2015-01-01

Korea Atomic Energy Research Institute (KAERI) have been developing the design and deployment methodology of Laser- Induced Breakdown Spectroscopy (LIBS) instrument for safeguards application within the argon hot cell environment at Advanced spent fuel Conditioning Process Facility (ACPF), where ACPF is a facility being refurbished for the laboratory-scaled demonstration of advanced spent fuel conditioning process. LIBS is an analysis technology used to measure the emission spectra of excited elements in the local plasma of a target material induced by a laser. The spectra measured by LIBS are analyzed to verify the quality and quantity of the specific element in the target matrix. Recently LIBS has been recognized as a promising technology for safeguards purposes in terms of several advantages including a simple sample preparation and in-situ analysis capability. In particular, a feasibility study of LIBS to remotely monitor the nuclear material in a high radiation environment has been carried out for supporting the IAEA safeguards implementation. Fiber-Optic LIBS (FO-LIBS) deployment was proposed by Applied Photonics Ltd because the use of fiber optics had benefited applications of LIBS by delivering the laser energy to the target and by collecting the plasma light. The design of FO-LIBS instrument for the measurement of actinides in the spent fuel and high temperature molten salt at ACPF had been developed in cooperation with Applied Photonics Ltd. FO-LIBS has some advantages as followings: the detectable plasma light wavelength range is not limited by the optical properties of the thick lead-glass shield window and the potential risk of laser damage to the lead-glass shield window is not considered. The remote LIBS instrument had been installed at ACPF and then the feasibility study for monitoring actinide elements such as uranium, plutonium, and curium in process materials has been carried out. (authors)

Process evaluation of the Teamplay parenting intervention pilot: implications for recruitment, retention and course refinement.

Science.gov (United States)

Jago, Russell; Sebire, Simon J; Bentley, Georgina F; Turner, Katrina M; Goodred, Joanna K; Fox, Kenneth R; Stewart-Brown, Sarah; Lucas, Patricia J

2013-12-01

Parenting programs could provide effective routes to increasing children's physical activity and reducing screen-viewing. Many studies have reported difficulties in recruiting and retaining families in group parenting interventions. This paper uses qualitative data from the Teamplay feasibility trial to examine parents' views on recruitment, attendance and course refinement. Semi-structured interviews were conducted with 16 intervention and 10 control group parents of 6-8 year old children. Topics discussed with the intervention group included parents' views on the recruitment, structure, content and delivery of the course. Topics discussed with the control group included recruitment and randomization. Interviews were digitally recorded, transcribed and thematically analyzed. Many parents in both the intervention and control group reported that they joined the study because they had been thinking about ways to improve their parenting skills, getting ideas on how to change behavior, or had been actively looking for a parenting course but with little success in enrolling on one. Both intervention and control group parents reported that the initial promotional materials and indicative course topics resonated with their experiences and represented a possible solution to parenting challenges. Participants reported that the course leaders played an important role in helping them to feel comfortable during the first session, engaging anxious parents and putting parents at ease. The most commonly reported reason for parents returning to the course after an absence was because they wanted to learn new information. The majority of parents reported that they formed good relationships with the other parents in the group. An empathetic interaction style in which leaders accommodated parent's busy lives appeared to impact positively on course attendance. The data presented indicate that a face-to-face recruitment campaign which built trust and emphasized how the program was

Pyrometallurgical partitioning of uranium and transuranic elements from rare earth elements by electrorefining and reductive extraction

International Nuclear Information System (INIS)

Uozumi, Koichi; Kinoshita, Kensuke; Inoue, Tadashi; Storvick, T.S.; Krueger, C.L.; Nabelek, C.R.

2001-01-01

High-level liquid waste generated from PUREX reprocessing contains a small amount of transuranic elements, such as Np, Pu, Am, and Cm, with long-lived radioactivities. A pyrometallurgical partitioning process is being developed to recover transuranic elements from such waste. Small amounts of U contained in the high-level liquid waste are also recovered in the process. A key issue for developing the process is effective separation of U and the transuranic elements from the rare-earth elements, because the two elemental groups are chemically analogous. A series of process tests were carried out in the present study to demonstrate that a combination of electrorefining and reductive extraction is useful for separating U and transuranic elements from the rare-earth elements. The results indicate that 99% of U and each transuranic elements is recovered by the combination process as a product, and that the quantity of rare-earth elements contained in the product is smaller than the transuranic elements by weight. The overall mass balance of U and transuranic elements in the system ranged within the experimental errors assigned to sampling and analysis. (author)

Cochlear implants in children implanted in Jordan: A parental overview.

Science.gov (United States)

Alkhamra, Rana A

2015-07-01

Exploring the perspective of parents on the cochlear implant process in Jordan. Sixty parents of deaf children were surveyed on the information gathering process prior to cochlear implant surgery, and their implant outcome expectations post-surgery. Whether child or parent characteristics may impact parents' post-surgical expectations was explored. Although parents used a variety of information sources when considering a cochlear implant, the ear, nose and throat doctor comprised their major source of information (60%). Parents received a range of information prior to cochlear implant but agreed (93.3%) on the need for a multidisciplinary team approach. Post-surgically, parents' expected major developments in the areas of spoken language (97%), and auditory skills (100%). Receiving education in mainstream schools (92%) was expected too. Parents perceived the cochlear implant decision as the best decision they can make for their child (98.3%). A significant correlation was found between parents contentment with the cochlear implant decision and expecting developments in the area of reading and writing (r=0.7). Child's age at implantation and age at hearing loss diagnosis significantly affected parents' post-implant outcome expectations (pparents agree on the need for a comprehensive multidisciplinary team approach during the different stages of the cochlear implant process. Parents' education about cochlear implants prior to the surgery can affect their post-surgical outcome expectations. The parental perspective presented in this study can help professionals develop better understanding of parents' needs and expectations and henceforth improve their services and support during the different stages of the cochlear implant process. Copyright © 2015. Published by Elsevier Ireland Ltd.

Shaping internal working models : parental love withdrawal, oxytocin, and asymmetric frontal brain activity affect socio-emotional information processing

NARCIS (Netherlands)

Huffmeijer, Renske

2011-01-01

The aim of this thesis is to gain insight into the associations between experiences of parental love withdrawal, oxytocin, and asymmetric frontal brain activity (reflecting basic motivational tendencies) on the one hand, and (neural) processing of and responses to socio-emotional stimuli on the

Parent-child coregulation of parasympathetic processes varies by social context and risk for psychopathology.

Science.gov (United States)

Lunkenheimer, Erika; Tiberio, Stacey S; Skoranski, Amanda M; Buss, Kristin A; Cole, Pamela M

2018-02-01

The parasympathetic nervous system supports social interaction and varies in relation to psychopathology. However, we know little about parasympathetic processes from a dyadic framework, nor in early childhood when parent-child social interactions become more complex and child psychopathology first emerges. We hypothesized that higher risk for psychopathology (maternal psychopathology symptoms and child problem behavior) would be related to weaker concordance of respiratory sinus arrhythmia (RSA) between mothers and children (M = 3½ years old; N = 47) and that these relations could vary by social contextual demands, comparing unstructured free play, semistructured cleanup, and structured teaching tasks. Multilevel coupled autoregressive models of RSA during parent-child interactions showed overall dynamic, positive concordance in mother-child RSA over time, but this concordance was weaker during the more structured teaching task. In contrast, higher maternal psychological aggression and child externalizing and internalizing problems were associated with weaker dyadic RSA concordance, which was weakest during unstructured free play. Higher maternal depressive symptoms were related to disrupted individual mother and child RSA but not to RSA concordance. Thus, risk for psychopathology was generally related to weaker dyadic mother-child RSA concordance in contexts with less complex structure or demands (free play, cleanup), as compared to the structured teaching task that showed weaker RSA concordance for all dyads. Implications for the meaning and utility of the construct of parent-child physiological coregulation are discussed. © 2017 Society for Psychophysiological Research.

Parenting Processes and Dating Violence: The Mediating Role of Self-Esteem in Low- and High-SES Adolescents

Science.gov (United States)

Pflieger, Jacqueline C.; Vazsonyi, Alexander T.

2006-01-01

The current investigation tested a model in which low self-esteem mediated the effects by parenting processes (monitoring, closeness, and support) on measures of dating violence (victimization, perpetration, attitudes, and perceptions) in a sample of adolescents (n=809; mean age=16.4 years) from both low- and high-socioeconomic (SES) backgrounds.…

The role of interpretation processes and parental discussion in the media's effects on adolescents' use of alcohol.

Science.gov (United States)

Austin, E W; Pinkleton, B E; Fujioka, Y

2000-02-01

The process that connects media use with alcohol-related beliefs and behaviors has not been well documented. To address this issue, we examined adolescents' viewing patterns, beliefs about alcohol and media messages, and parental discussion of media messages in the context of a theoretical model of message interpretation processes. Measures included the degree to which adolescents found portrayals desirable, realistic, and similar to their own lives; the degree to which they wanted to be like (identify with) the portrayals; and the degree to which they associated positive outcomes with drinking alcohol (expectancies). Cross-sectional survey. Two public high schools in the California central coastal area that include a diverse population in terms of ethnic origin, income level, and education level. Ninth-grade students (n = 252) and 12th-grade students (n = 326). Students reported the number of days within the past week watching various genres of television content, along with perceptions of realism of content, desirability of portrayals, identification with portrayals, expectancies toward alcohol use, personal norms for alcohol use, desire for products with alcohol logos, current alcohol use, frequency of parental reinforcement, and counter-reinforcement of television messages. Associations were examined via hierarchical multiple regression analysis. Effects of media exposure on drinking behavior, controlling for grade level, ethnicity, gender, household income, and education levels were primarily positive and indirect, operating through a number of intervening beliefs, especially expectancies (beta =.59; r(2) =.33). Direct associations, primarily with exposure to late-night talk shows (beta =.12; r(2) =.01), were small. Parental discussion also affected behavior indirectly, operating through expectancies, identification, and perceived realism. The appeal of products with alcohol logos, which was higher among the younger students (t = 3.44) and predicted by

What parents find important in the support of a child with profound intellectual and multiple disabilities.

Science.gov (United States)

Jansen, S L G; van der Putten, A A J; Vlaskamp, C

2013-05-01

The importance of a partnership between parents and professionals in the support of children with disabilities is widely acknowledged and is one of the key elements of 'family-centred care'. To what extent family-centred principles are also applied to the support of persons with profound intellectual and multiple disabilities (PIMD) is not yet known. The purpose of this exploratory study was to examine what parents with a child with PIMD find important in the support of their child. In addition, we examined which child or parent characteristics influence these parental opinions. In total, 100 parents completed an adapted version of the Measure of Processes of Care. Mean unweighted and weighted scale scores were computed. Non-parametric tests were used to examine differences in ratings due to child (gender, age, type and number of additional disabilities, type of services used and duration of service use) and parent characteristics (gender, involvement with support and educational level). Parents rated situations related to 'Respectful and Supportive Care' and 'Enabling and Partnership' with averages of 7.07 and 6.87 respectively on a scale from 1 to 10. They were generally satisfied with the services provided, expressed in a mean score of 6.88 overall. The age of the child significantly affected the scores for 'Providing Specific Information about the Child'. Parents of children in the '6-12 years' age group gave significantly higher scores on this scale than did parents of children in the '≥17 years' age group (U = 288, r = -0.34). This study shows that parents with children with PIMD find family-centred principles in the professional support of their children important. Although the majority of parents are satisfied with the support provided for their children, a substantial minority of the parents indicated that they did not receive the support they find important. © 2012 Blackwell Publishing Ltd.

Influence of Parental Education and Family Income on Children's Education in Rural Uganda

Science.gov (United States)

Drajea, Alice J.; O'Sullivan, Carmel

2014-01-01

This article investigates the effect of parents' literacy levels and family income in Uganda on the quality and nature of parents' involvement in their children's primary education. A mixed-methods study with an ethnographic element was employed to explore the views and opinions of 21 participants through a qualitative approach. Methods for data…

Parent Personality and Positive Parenting as Predictors of Positive Adolescent Personality Development over Time

Science.gov (United States)

Schofield, Thomas J.; Conger, Rand D.; Donnellan, M. Brent; Jochem, Rachel; Widaman, Keith F.; Conger, Katherine J.

2012-01-01

We investigated the degree to which parent positive personality characteristics in terms of conscientiousness, agreeableness, and emotional stability predict similar adolescent personality traits over time, as well as the role played by positive parenting in this process. Mothers and fathers of 451 White adolescents (52% female, mean age = 13.59…

What are other parents saying? Perceived parental communication norms and the relationship between alcohol-specific parental communication and college student drinking

Science.gov (United States)

Napper, Lucy E.; Hummer, Justin F.; Lac, Andrew; LaBrie, Joseph W.

2013-01-01

This study examined parents’ normative perceptions of other college parents’ alcohol-specific communication, and how parents’ perceived communication norms and alcohol-specific communication relate to student drinking outcomes. A sample of 457 student-parent dyads were recruited from a mid-size university. Students completed web-based assessments of alcohol-related attitudes and behaviors. Parents completed alcohol-specific measures of communication norms and parent-child communication, including communication content (i.e., targeted communication) and frequency of communication. Results indicated that parents overestimated how much other parents talked to their college students about the frequency and quantity of alcohol use, but underestimated how often parents initiated conversations about alcohol. In a path model, perceived communication norms positively predicted both targeted communication and frequency of communication. Perceived communication norms and targeted communication negatively predicted students’ attitude toward alcohol use. In contrast, more frequent communication predicted students holding more approving attitudes toward alcohol. The relationship between parents’ perceived communication norms and students’ drinking behaviors was mediated by the parental communication variables and student attitudes. Tests of indirect effects were undertaken to examine meditational processes. The findings underscore relations involving parental perceived communication norms and parents’ own alcohol communication and their children’s drinking outcomes. The complex relationships of different types of parental communication and student outcomes warrant further research. PMID:24128293

Transformational change in parenting practices after child interpersonal trauma: A grounded theory examination of parental response.

Science.gov (United States)

Cummings, Jorden A

2018-02-01

Child interpersonal trauma is associated with a host of negative outcomes, both concurrently and in adulthood. Parental responses following trauma can play an important role in modulating child responses, symptoms, and post-trauma functioning. However, parents themselves are also impacted after their child experiences trauma, reporting distress, psychopathology, concerns about the child's safety, changes in discipline and protectiveness, and feelings of blame. Most of this previous research, however, suffers from methodological limitations such as focusing on description and correlations, providing static "one shot" assessments of parenting after trauma, and relying mainly on results related to child sexual abuse. This project developed a comprehensive, explanatory theory of the dynamic process by which parenting changes in response to a range of child trauma, using a sample of parents whose children had experienced a range of interpersonal trauma types. Grounded theory analyses revealed a three-phase dynamic model of discontinuous transformation, in which parents experienced destabilization, recalibration, and re-stabilization of parenting practices in response to child trauma. Parents were focused on Protecting and Healing the child victim, often at the expense of their own needs. Most parents reached a phase of posttraumatic growth, labelled Thriving Recovery, but processes that hindered this recovery are also discussed. This study provides the first evidence that dynamic systems of change as well as vicarious posttraumatic growth can apply to parents of child trauma victims. Generating an explanatory theory provides important avenues for future research as well as interventions and services aimed at families who have experienced child trauma. Copyright © 2017 The Author. Published by Elsevier Ltd.. All rights reserved.

Organisational systems and services for children of parents with mental illness and their families: processes of change and sustainability.

Science.gov (United States)

Owen, Susanne

2010-09-01

Adult mental illness in the community including depression and anxiety has achieved greater public awareness and visibility in recent years and this has also resulted in increased recognition about the widespread impact on dependent children. During the past decade in Australia, policies and specific programs for infants, children and youth in terms of prevention, early intervention and promotion in relation to children of parents with a mental illness ('copmi') have been devised. However, these have generally been disconnected projects, essentially supported only by non-recurrent funding. In more recent years, systematic and interconnected responses involving a wider range of government, non-government and consumer and carer organisations to build sustainability have become the focus. However, little research about change processes affecting the organisational systems serving children of parents with mental illness and their families has been undertaken. This aim of the current study is to describe the enablers and barriers that contribute to change in systems and government and non-government organisations in relation to children of parents with a mental illness in Australia over the past decade, within the context of sustainability. The study involved interviews, focus groups and website and literature searches regarding systems change across Australian states and territories and nationally in relation to the enablers, barriers and future directions. Strategic and intentional processes within organisations, more evolutionary ongoing cross-agency processes and links to sustained changes are key systems change findings. Relevance for change in other health services is highlighted.

Trace and major element pollution originating from coal ash suspension and transport processes.

Science.gov (United States)

Popovic, A; Djordjevic, D; Polic, P

2001-04-01

Coal ash obtained by coal combustion in the "Nikola Tesla A" power plant in Obrenovac, near Belgrade, Yugoslavia, is mixed with water of the Sava river and transported to the dump. In order to assess pollution caused by leaching of some minor and major elements during ash transport through the pipeline, two sets of samples (six samples each) were subjected to a modified sequential extraction. The first set consisted of coal ash samples taken immediately after combustion, while the second set was obtained by extraction with river water, imitating the processes that occur in the pipeline. Samples were extracted consecutively with distilled water and a 1 M solution of KCl, pH 7, and the differences in extractability were compared in order to predict potential pollution. Considering concentrations of seven trace elements as well as five major elements in extracts from a total of 12 samples, it can be concluded that lead and cadmium do not present an environmental threat during and immediately after ash transport to the dump. Portions of zinc, nickel and chromium are released during the ash transport, and arsenic and manganese are released continuously. Copper and iron do not present an environmental threat due to element leaching during and immediately after the coal ash suspension and transport. On the contrary, these elements, as well as chromium, become concentrated during coal ash transport. Adsorbed portions of calcium, magnesium and potassium are also leached during coal ash transport.

Parent-Child Attunement Moderates the Prospective Link between Parental Overcontrol and Adolescent Adjustment.

Science.gov (United States)

Miller, Kelly F; Borelli, Jessica L; Margolin, Gayla

2017-10-22

Parental overcontrol (OC), behavior that intrusively or dominantly restricts child autonomy, has been identified as a transdiagnostic risk factor for youth. However, it is as yet unknown whether the association between parental OC and child maladjustment remains even when OC is exerted infrequently or by attuned parents. Rather, the selective use of OC might steer children away from danger. Taking a developmental psychopathology approach, this study focuses on the larger parent-child relationship context, testing whether either the dose at which parents demonstrate OC or the degree to which children perceive their parents as attuned determines whether OC is risky or protective for adolescents' adjustment. Among a community sample of 114 families of children followed from the ages of 12-18, we examine whether OC, behaviorally coded from triadic mother-father-child discussions in middle childhood, is associated with later risky behavior and anxiety symptoms in adolescence. Overcontrol exerted by either mothers or fathers had a curvilinear effect on adolescent risky behaviors, and this effect was moderated by children's perceived attunement. Although OC generally was associated with increased risky behaviors, low doses of OC or OC exerted by highly attuned parents protected against engagement in risky behaviors. No main effect of OC was observed on adolescent anxiety; however, mothers' OC interacted with perceived parental attunement, such that OC exerted by less attuned parents predicted greater anxiety. Results underscore that the effect of parenting behaviors depends on the larger parent-child relationship context. © 2017 Family Process Institute.

Parenting Perfectionism and Parental Adjustment

OpenAIRE

Lee, Meghan A.; Schoppe-Sullivan, Sarah J.; Kamp Dush, Claire M.

2012-01-01

The parental role is expected to be one of the most gratifying and rewarding roles in life. As expectations of parenting become ever higher, the implications of parenting perfectionism for parental adjustment warrant investigation. Using longitudinal data from 182 couples, this study examined the associations between societal- and self-oriented parenting perfectionism and new mothers’ and fathers’ parenting self-efficacy, stress, and satisfaction. For mothers, societal-oriented parenting perf...

Costs of Quality: Exploratory Analysis of Hidden Elements and Prioritization using Analytic Hierarchy Process

Directory of Open Access Journals (Sweden)

Sailaja A

2015-02-01

Full Text Available Cost of Quality analysis is emerged as an effective tool for the industrial managers for pinpointing the deficiencies in the system as well as for identifying the improvement areas by highlighting the cost reduction opportunities. However , this analysis will be fully effective only if it is further extended to identify the cost incurred in ensuring quality in all areas of the supply chain including the hidden costs and costs of missed out opportunities. Most of the hidden elements of quality costs are difficult to track and not accounted by the traditional accounting tools. An exploratory analysis is made in this research to identify the hidden elements of quality costs in manufacturing industry. Further, the identified cost elements are classified into various groups for better analysis and, finally, prioritized to identify the vital few among them. Analytic Hierarchy Process (AHP technique which is one of the most popular Multi Criteria Decision Method (MCDM and Pareto analysis were used in this study for prioritizing the hidden quality cost elements based on their degree of impact on overall cost of quality. By this analysis, the key cost elements which are to be addressed to reduce the overall cost of quality are identified.

Sibling comparison of differential parental treatment in adolescence: gender, self-esteem, and emotionality as mediators of the parenting-adjustment association.

Science.gov (United States)

Feinberg, M E; Neiderhiser, J M; Simmens, S; Reiss, D; Hetherington, E M

2000-01-01

This study employs findings from social comparison research to investigate adolescents' comparisons with siblings with regard to parental treatment. The sibling comparison hypothesis was tested on a sample of 516 two-child families by examining whether gender, self-esteem, and emotionality-which have been found in previous research to moderate social comparison-also moderate sibling comparison as reflected by siblings' own evaluations of differential parental treatment. Results supported a moderating effect for self-esteem and emotionality but not gender. The sibling comparison process was further examined by using a structural equation model in which parenting toward each child was associated with the adjustment of that child and of the child's sibling. Evidence of the "sibling barricade" effect-that is, parenting toward one child being linked with opposite results on the child's sibling as on the target child-was found in a limited number of cases and interpreted as reflecting a sibling comparison process. For older siblings, emotionality and self-esteem moderated the sibling barricade effect but in the opposite direction as predicted. Results are discussed in terms of older siblings' increased sensitivity to parenting as well as the report of differential parenting reflecting the child's level of comfort and benign understanding of differential parenting, which buffers the child against environmental vicissitudes evoking sibling comparison processes.

COST action TD1407: network on technology-critical elements (NOTICE)--from environmental processes to human health threats.

Science.gov (United States)

Cobelo-García, A; Filella, M; Croot, P; Frazzoli, C; Du Laing, G; Ospina-Alvarez, N; Rauch, S; Salaun, P; Schäfer, J; Zimmermann, S

2015-10-01

The current socio-economic, environmental and public health challenges that countries are facing clearly need common-defined strategies to inform and support our transition to a sustainable economy. Here, the technology-critical elements (which includes Ga, Ge, In, Te, Nb, Ta, Tl, the Platinum Group Elements and most of the rare-earth elements) are of great relevance in the development of emerging key technologies-including renewable energy, energy efficiency, electronics or the aerospace industry. In this context, the increasing use of technology-critical elements (TCEs) and associated environmental impacts (from mining to end-of-life waste products) is not restricted to a national level but covers most likely a global scale. Accordingly, the European COST Action TD1407: Network on Technology-Critical Elements (NOTICE)-from environmental processes to human health threats, has an overall objective for creating a network of scientists and practitioners interested in TCEs, from the evaluation of their environmental processes to understanding potential human health threats, with the aim of defining the current state of knowledge and gaps, proposing priority research lines/activities and acting as a platform for new collaborations and joint research projects. The Action is focused on three major scientific areas: (i) analytical chemistry, (ii) environmental biogeochemistry and (iii) human exposure and (eco)-toxicology.

The Effects of Parental Acculturation and Parenting Practices on the Substance Use of Mexican-Heritage Adolescents from Southwestern Mexican Neighborhoods

Science.gov (United States)

MARSIGLIA, FLAVIO F.; NAGOSHI, JULIE L.; PARSAI, MONICA; CASTRO, FELIPE GONZÁLEZ

2014-01-01

A sample of 189 Mexican-heritage seventh grade adolescents reported their substance use, while one of the child’s parents reported parent’s acculturation and communication, involvement, and positive parenting with his or her child. Higher levels of parental acculturation predicted greater marijuana use, whereas parent communication predicted lower cigarette and marijuana use among girls. A significant parent acculturation by parent communication interaction for cigarette use was due to parent communication being highly negatively associated with marijuana use for high acculturated parents, with attenuated effects for low acculturated parents. A significant child gender by parent acculturation by parent positive parenting interaction was found. For girls, positive parenting had a stronger association with lower cigarette use for high acculturated parents. For boys, positive parenting had a stronger association with reduced cigarette use for low acculturated parents. Discussion focuses on how acculturation and gender impact family processes among Mexican-heritage adolescents. PMID:25176121

Relationship of microbial processes to the fate and behavior of transuranic elements in soils, plants, and animals

International Nuclear Information System (INIS)

Wildung, R.E.; Garland, T.R.

1980-01-01

Soil physicochemical and microbial processes influence the long-term solubility, form, and bioavailability of plutonium and other transuranic elements important in the nuclear fuel cycle. Consideration is given to the chemistry/microbiology of the transuranic elements in soil, emphasizing possible organic complexation reactions in soils and plants and the relationship of these phenomena to gastrointestinal absorption

Beliefs regarding child anxiety and parenting competence in parents of children with separation anxiety disorder.

Science.gov (United States)

Herren, Chantal; In-Albon, Tina; Schneider, Silvia

2013-03-01

Despite the fact that numerous developmental models have highlighted the role of parental cognitive processes in connection with anxiety disorders in children and adolescents, the role of parents' beliefs about their children and parenting remains largely unexplored. This study investigated the specific association between parental beliefs and child separation anxiety. Parents of children with a diagnosis of Separation Anxiety Disorder (SAD) reported on beliefs and expectations related to their child's fears and own parenting competence. To study the potential specificity of relationships, a clinical control group of mothers of children with social phobia (SoP) and a group of mothers of children without a mental disorder (healthy controls, HC) were included. Results indicated that parents of anxious children had significantly higher levels of dysfunctional beliefs than the parents in the HC group. Mothers of children with SAD showed lower levels of parenting self-efficacy than mothers of children with SoP. They also demonstrated lower parenting self-efficacy and satisfaction compared to mothers of healthy children. Parental dysfunctional beliefs about child anxiety and paternal parenting self-efficacy were significantly positively associated with child anxiety. The effects remained significant after controlling for parental anxiety and depression. Due to the cross-sectional design of the study, causality of the found effects cannot be inferred. Data suggest that children's anxiety and parents' beliefs about their child's anxiety, coping skills and parenting are strongly associated. Further research is needed to investigate whether addressing parental cognitions in addition to parents' anxiety may improve prevention and intervention of child anxiety. Copyright © 2012 Elsevier Ltd. All rights reserved.

Attachment, parenting styles and bullying during pubertal years.

Science.gov (United States)

van der Watt, Ronél

2014-01-01

Research that focuses on combining attachment, parenting styles, bullying and the reciprocal nature thereof in the parent-adolescent and peer relationships is limited. The bio-psychosocial changes that adolescents experience open up broader social realities and are perceived differently by parents and adolescents. Attachment processes and parenting styles may elicit dissimilar perceptions. These processes are also associated with the multifaceted dynamics of bullying. The aim of the article is to advocate for research on the possible link between the implications of attachment, parenting styles and bullying. Exploring the association between attachment, parenting styles and bullying can deepen the understanding of the developmental challenges within the parent-adolescent relationship, add insight to the different perceptions of adolescents and parents, and complement intervention programmes accordingly. Firstly, this article outlines bio-psychosocial changes in the pubertal years as related to the social realities of the adolescent. Secondly, a discussion on the concepts 'attachment', 'parenting styles', 'bullying', and the potential link between these concepts will follow. Thirdly, an outline of the clinical implications of the apparent association between these concepts is given. The article concludes with recommendations that researchers can consider while exploring the relationship between attachment, parenting styles, and bullying and the delineation thereof in the parent-adolescent relationship.

A qualitative process evaluation of a randomised controlled trial of a parenting intervention in community (school) settings for children at risk of attention deficit hyperactivity disorder (ADHD).

Science.gov (United States)

Taylor, John A; Valentine, Althea Z; Sellman, Edward; Bransby-Adams, Kate; Daley, David; Sayal, Kapil

2015-11-17

Interventions for parents of children experiencing emotional and/or behavioural difficulties can help to improve their children's health, educational and social outcomes. However, the desirability and acceptability of screening and offering such interventions for attention-deficit hyperactivity disorder (ADHD)-type problems are currently unclear. This article is a qualitative process evaluation of a pragmatic cluster randomised controlled trial (Trial registration: ISRCTN87634685; reported elsewhere) to assess the feasibility and acceptability of a school-based parenting intervention programme for parents and teachers of children with high levels of ADHD symptoms. Parents (n = 22) and teaching staff (n = 29) took part in semi-structured group or individual interviews, either by telephone or face-to-face, following the main trial. Interviews were digitally-recorded, transcribed verbatim and subjected to thematic analysis. The parenting intervention was acceptable to parents and teachers, and they were enthusiastic about the need for parenting groups in the school environment and stressed the importance of parent-school collaboration. Parents generally stated a preference for universal recruitment approaches to such programmes whilst teachers described the need to target specific parents. Most parents who took part in the parenting intervention described it favourably and many saw benefits, at least in the short-term. Parents differed in their preferred group size, with some desiring one-to-one sessions and others favouring a larger group. Non-attending parents reported barriers to attendance such as fear of attending in a group, previous use of the programme, work and other commitments. Suggestions to improve the programme included: clearer communication; offering booster sessions; and greater collaboration with teachers. It is feasible to deliver parenting intervention programmes within or near schools. The intervention was acceptable to the majority of

34 CFR 200.36 - Communication with parents.

Science.gov (United States)

2010-07-01

... 34 Education 1 2010-07-01 2010-07-01 false Communication with parents. 200.36 Section 200.36... with parents. (a) Throughout the school improvement process, the State, LEA, or school must communicate with the parents of each child attending the school. (b) The State, LEA, or school must ensure that...

PARENTING AND ITS INFLUENCE ON CHILD BEHAVIOUR

OpenAIRE

Jiji Mary Antony; Suresh Sebastian Vadakedom

2017-01-01

BACKGROUND Parenting is the process of giving care to the young and preparing them to face the challenges of life. Diana Baumrind introduced the models of parenting, authoritative, authoritarian and permissive depending on the level of demandingness and responsiveness. Defective parenting is associated with problem behaviours in children. This study was undertaken to find out which parenting style is least associated with behavioural problems and what are the problems associated w...

Outcomes of early parent-child adrenocortical attunement in the high-risk offspring of depressed parents.

Science.gov (United States)

Merwin, Stephanie M; Barrios, Chelsey; Smith, Victoria C; Lemay, Edward P; Dougherty, Lea R

2018-03-12

This study examined the impact of parent-child attunement of morning cortisol on parenting and child outcomes in dyads with and without parental depression. Participants included 142 parent-child dyads (3-5 years-old) who provided morning cortisol samples at Wave 1, and 98 dyads returned for the 3-year follow-up at Wave 2. Results indicated that for parents with a history of depression and for female children, stronger attunement predicted increases in parental hostility from Wave 1 to Wave 2. For females only, stronger attunement was related to children's depressive symptoms at Wave 1 and Wave 2. Stronger attunement was also associated with increases in children's depressive symptoms from Wave 1 to Wave 2, poorer psychosocial functioning at Wave 1, and ADHD symptoms at Wave 2. Findings highlight attunement as an important biological process related to parenting and child outcomes and suggest it may play a role in the intergenerational transmission of depression risk. © 2018 Wiley Periodicals, Inc.

Predictors of Substance Abuse Assessment and Treatment Completion for Parents Involved with Child Welfare: One State's Experience in Matching across Systems.

Science.gov (United States)

Traube, Dorian E; He, Amy S; Zhu, Limei; Scalise, Christine; Richardson, Tyrone

2015-01-01

To date, few studies have examined the effect of interagency collaboration on substance abuse assessment ity of Southern California and treatment completion for parents who are involved in child welfare. The purpose of this paper is to: (1) describe a statewide, interagency collaborative program aimed at providing targeted substance abuse assessment and treatment to parents engaged in the child welfare system; (2) document the specialized assessment and treatment outcomes for parents engaged through this collaborative program; and (3) determine factors related to successful treatment completion for parents involved in the child welfare system. This is a retrospective study of an open cohort of 13,829 individuals admitted to the New Jersey Child Protection Substance Abuse Initiative (CPSAI) program from October 1, 2009, through September 30, 2010. Data were drawn from two unique administrative data sources. Multivariate Cox regression models were used to explore factors related to successfil treatment completion for parents involved in the child welfare system. Trend analysis for the total sample in the CPSAI program revealed that, of the 10,909 individuals who received a CPSAI assessment, 59% were referred to treatment. Of those referred to treatment, 40% enrolled in a treatment program. Once enrolled in a treatment program, 55% completed or were in the process of completing substance abuse treatment. These findings suggest that when adequate screening and treatment is available through a streamlined process, many of the ethnic and gender disparities present among other populations of individuals seeking treatment are minimized. Utilizing inherent child welfare case factors appears to be an important motivating element that aids parents during the assessment and treatment process.

Analysis of Movie I am not Stupid 2: Parenting Style

OpenAIRE

Mariana

2015-01-01

This paper, through Singaporean movie I am not Stupid 2, analyzes the relation between parenting and childrens growth process and also the action of parents should do to offer children for having a good growth process. Research was done based on Baumrind theory about parenting analysis to what kind of parenting that the parents of the movie I am not Stupid 2 offer to their children. Research used literature study to summarize, arrange, and analyze of Diana Baumrind as basis of the research. T...

Rolling Process Modeling Report: Finite-Element Prediction of Roll Separating Force and Rolling Defects

Energy Technology Data Exchange (ETDEWEB)

Soulami, Ayoub [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Lavender, Curt A. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Paxton, Dean M. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Burkes, Douglas [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

2014-04-23

Pacific Northwest National Laboratory (PNNL) has been investigating manufacturing processes for the uranium-10% molybdenum (U-10Mo) alloy plate-type fuel for the U.S. high-performance research reactors. This work supports the Convert Program of the U.S. Department of Energy’s National Nuclear Security Administration (DOE/NNSA) Global Threat Reduction Initiative. This report documents modeling results of PNNL’s efforts to perform finite-element simulations to predict roll separating forces and rolling defects. Simulations were performed using a finite-element model developed using the commercial code LS-Dyna. Simulations of the hot rolling of U-10Mo coupons encapsulated in low-carbon steel have been conducted following two different schedules. Model predictions of the roll-separation force and roll-pack thicknesses at different stages of the rolling process were compared with experimental measurements. This report discusses various attributes of the rolled coupons revealed by the model (e.g., dog-boning and thickness non-uniformity).

Transmission of values from adolescents to their parents: the role of value content and authoritative parenting.

Science.gov (United States)

Pinquart, Martin; Silbereisen, Rainer K

2004-01-01

The intergenerational transmission of values is a bidirectional process. To date, however, adolescents' influence on parental values has rarely been investigated. In the present study, we analyzed the transmission of values from adolescents (aged 11 to 17 years) to their mothers and fathers across a one-year interval in 431 mother-child dyads and 346 father-child dyads. Transmission of values from adolescents to parents was observed regarding topics that are salient in adolescence (the usefulness of new technology, beliefs concerning the traditional way of life, the importance of religion) but not regarding topics that become salient later. In addition, the transmission of adolescents' values to their parents was mainly observed in families with above-average levels of authoritative parenting (i.e., parents are receptive and supportive). However, adolescents' religious values were also transmitted to their parents in families with below-average levels of authoritative parenting. Transmission of values from parents to adolescents was also investigated.

Implementation and Process Issues in Using Group Triple P with Chinese Parents: Preliminary Findings.

Science.gov (United States)

Crisante, Lea; Ng, Sally

2003-01-01

Implements and evaluates a positive parenting program intervention with Chinese parents. Results reveal significant improvements on the Prosocial Behavior Score. Given the unwillingness of some parents to complete questionnaires, the difficulties encountered in conducting evaluation in cross-cultural contexts are discussed, along with…

Parental Expressivity and Parenting Styles in Chinese Families: Prospective and Unique Relations to Children's Psychological Adjustment.

Science.gov (United States)

Chen, Stephen H; Zhou, Qing; Eisenberg, Nancy; Valiente, Carlos; Wang, Yun

2011-01-01

OBJECTIVES: Parents from different cultures differ in how frequently they express emotions. However, the generalizability of the relations between parental expressivity and child adjustment in non-Western cultures has not been extensively studied. The goal of the present study was to investigate prospective relations between parental expressivity within the family (positive, negative dominant, and negative submissive expressivity) and Chinese children's psychological adjustment, above and beyond parenting styles. DESIGN: The study used two waves (3.8 years apart) of longitudinal data from a sample (n= 425) of children in Beijing (mean ages = 7.7 years at T1 and 11.6 years at T2). Parental expressivity and parenting styles were self-reported. To reduce the potential measurement overlap, items that tap parental expression of emotions toward the child were removed from the parenting style measure. Children's adjustment was measured with parents', teachers', and peers' or children's reports. RESULTS: Consistent with findings with European American samples, parental negative dominant expressivity uniquely and positively predicted Chinese children's externalizing problems controlling for prior externalizing problems, parenting styles, and family SES. Neither parental expressivity nor parenting styles uniquely predicted social competence. CONCLUSIONS: Despite previously reported cultural differences in the mean levels of parental expressivity, some of the socialization functions of parental expressivity found in Western countries can be generalized to Chinese families. Although parental expressivity and parenting styles are related constructs, their unique relations to child's adjustment suggest that they should be examined as distinct processes.

Towards a culturally independent participatory design method: Fusing game elements into the design process

DEFF Research Database (Denmark)

Jensen, Mika Yasuoka; Nakatani, Momoko; Ohno, Takehiko

2013-01-01

Historically, Participatory Design (PD) was introduced and applied in the Scandinavian and American context as a practical design method for collective creativity and stakeholder involvement. In this paper, by fusing game elements into PD, we suggest a first step towards a culturally independent ...... imply that the introduction of game elements allows PD to be effectively utilized in culturally diverse settings.......Historically, Participatory Design (PD) was introduced and applied in the Scandinavian and American context as a practical design method for collective creativity and stakeholder involvement. In this paper, by fusing game elements into PD, we suggest a first step towards a culturally independent PD...... method called the ICT Service Design Game to ease the prevailing concern that PD has limited applicability in other cultural settings. We conduct four experiments on ICT Service Design Game in Scandinavia and Asia to evaluate its feasibility. The experiments identify some differences in the PD process...

The role of between-parent values agreement in parent-to-child transmission of academic values.

Science.gov (United States)

Gniewosz, Burkhard; Noack, Peter

2012-08-01

The present study investigates the intergenerational transmission of academic task values within family in early adolescence. Social learning processes are assumed to operate through the students' perceptions of their parents' values. The major goal of this study is to show that this values transmission is facilitated by between-parent value agreement. Based on a longitudinal data set including 1019 German students, their mothers (N = 847), and fathers (N = 733), structural equation models showed significant effects of the parents' task values regarding math and German language as academic subjects on the respective task values reported by the students, mediated through the student-perceived parental values. This transmission chain was only found if the between-parent agreement was high. The results are discussed in terms of parent-specific mechanisms fostering transmission if both parents agree on academic values, such as an improved perceptive accuracy as well as the increased salience and mutual reinforcement of parental messages. Copyright © 2011 The Foundation for Professionals in Services for Adolescents. Published by Elsevier Ltd. All rights reserved.

Supporting Parents: Using Research to Inform Policy and Best Practice. Social Policy Report Brief. Volume 30, Issue 5

Science.gov (United States)

Bridgman, Anne

2017-01-01

Parenting is one of the most emotionally powerful, demanding, and consequential tasks of adulthood. Previously, the task of parenting was shared with extended family and community members. Today, with less extensive networks of experience and support, parents are frequently not as well prepared. Research has identified the elements of competent…

The Association between Positive Parenting and Externalizing Behavior.

Science.gov (United States)

Boeldt, Debra L; Rhee, Soo Hyun; Dilalla, Lisabeth F; Mullineaux, Paula Y; Schulz-Heik, R Jay; Corley, Robin P; Young, Susan E; Hewitt, John K

2012-01-01

The present study examined the role of positive parenting on externalizing behaviors in a longitudinal, genetically informative sample. It often is assumed that positive parenting prevents behavior problems in children via an environmentally mediated process. Alternatively, the association may be due to either an evocative gene-environment correlation, in which parents react to children's genetically-influenced behavior in a positive way, or a passive gene-environment correlation, where parents passively transmit a risk environment and the genetic risk factor for the behavioral outcome to their children. The present study estimated the contribution of these processes in the association between positive parenting and children's externalizing behavior. Positive parenting was assessed via observations at ages 7, 9, 14, 24, and 36 months and externalizing behaviors were assessed through parent report at ages 4, 5, 7, 9, 10, 11, and 12 years. The significant association between positive parenting and externalizing behavior was negative, with children of mothers who showed significantly more positive parenting during toddlerhood having lower levels of externalizing behavior in childhood; however, there was not adequate power to distinguish whether this covariation was due to genetic, shared environmental, or nonshared environmental influences.

Detection process of defects in a tube close to an adjacent element, especially in a heat exchanger

International Nuclear Information System (INIS)

Holt, A.E.; Wehrmeister, A.E.; Whaley, H.L.

1978-01-01

On-site process for obtaining, by Foucault currents, the indication of a defect in a tube close to an adjacent element masking the indication of the defect. It is characterized by the course of a reference tube with an eddy current sensor near a similar adjacent element in order to obtain an indication of reference eddy currents of the adjacent element first mentioned, the completion of a joint crossover of the above first mentioned tube so as to obtain a composite indication of eddy currents of the defect and of the adjacent element, and the generation of the indication by eddy currents of the defect by comparing the composite indication with the reference indication [fr

Parents' and Adolescents' Perspectives on Parenting: Evaluating Conceptual Structure, Measurement Invariance, and Criterion Validity.

Science.gov (United States)

Janssens, Annelies; Goossens, Luc; Van Den Noortgate, Wim; Colpin, Hilde; Verschueren, Karine; Van Leeuwen, Karla

2015-08-01

Uncertainty persists regarding adequate measurement of parenting behavior during early adolescence. The present study aimed to clarify the conceptual structure of parenting by evaluating three different models that include support, psychological control, and various types of behavioral control (i.e., proactive, punitive, and harsh punitive control). Furthermore, we examined measurement invariance of parenting ratings by 1,111 Flemish adolescents from Grade 7 till 9, their mother, and father. Finally, criterion validity of parenting ratings was estimated in relation to adolescent problem behavior. Results supported a five-factor parenting model indicating multiple aspects of behavioral control, with punitive and harsh punitive control as more intrusive forms and proactive control as a more supportive form. Similar constructs were measured for adolescents, mothers, and fathers (i.e., configural and metric invariance), however on a different scale (i.e., scalar noninvariance). Future research and clinical practices should acknowledge these findings in order to fully grasp the parenting process. © The Author(s) 2014.

Parenting children with down syndrome: An analysis of parenting styles, parenting dimensions, and parental stress.

Science.gov (United States)

Phillips, B Allyson; Conners, Frances; Curtner-Smith, Mary Elizabeth

2017-09-01

Effective parenting is vital for a child's development. Although much work has been conducted on parenting typically developing children, little work has examined parenting children with Down syndrome. The purpose of the current study was to compare the parenting styles and dimensions in mothers of children with DS and mothers of TD children. Thirty-five mothers of children with DS and 47 mothers of TD children completed questionnaires about parenting, parental stress, child behavior problems, and child executive function. We found that mothers of children with DS use an authoritative parenting style less and a permissive parenting style more than mothers of TD children. Additionally, we found that mothers of children with DS use reasoning/induction and verbal hostility less and ignoring misbehavior more than mothers of TD children. All of these differences, except for those of reasoning/induction, were at least partially accounted for by the higher levels of parental stress in the DS group. Parenting interventions should be focused on reducing parental stress and training mothers to parent under stress in an effort to improve parenting techniques, which would, in theory, improve long-term child outcomes for children with DS. Copyright © 2017 Elsevier Ltd. All rights reserved.

Taking on the Perspective of the Other: Understanding Parents' and Teachers' Perceptions of Parent Involvement in Students' Educational Experiences

Science.gov (United States)

Wilson, Rene M.

2011-01-01

Parent involvement is considered a vital educational factor that is associated with students' academic success. Engaging parents in the educational process is a challenge confronting many school districts across the United States. This is a significant problem for schools in low socioeconomic communities where lack of resources for parents and…

Finite element analysis of the combined fine blanking and extrusion process

Science.gov (United States)

Zheng, Peng-Fei

The combined fine blanking and extrusion process is such a metal forming process that fine blanking and forward extrusion are carried out on sheet metal material at the same time. There are two typical characteristics in this process, one is the fine blanking whose deformation mechanism is different from conventional blanking; the other is the sheet metal extrusion, which is different from the conventional extrusion. Even though fine blanking has been used in industry for many years, only limited literature can be found which deals with the theoretical analysis of it. On the other hand, no publications on the theoretical analysis of the sheet metal extrusion have been found. Intensive work should be carried out to reveal the mechanism of both fine blanking process and sheet metal extrusion process, and further the combined fine blanking and extrusion process. The scope of this thesis is to study the mechanics of fine blanking, sheet metal extrusion, and combined fine blanking and extrusion process one by one with the rigid-plastic finite element method. All of above processes are typical unsteady ones, especially the fine blanking process in which extremely severe and localized deformation occurs. Therefore, commercial programs can not be used to solve these problems up till now. Owing to this reason, a rigid-plastic finite element program was developed for simulating these processes where remeshing and mesh tracing techniques as well as the golden section method were adopted according to the characteristics of these processes in this thesis. Moreover, a permissible kinematic velocity field was adopted as the initial velocity field for simulating extrusion process successfully. Results from the simulation included the distorted mesh, the field of material flow, the stress and the strain distributions at various moments of deformation. Results under different deformation conditions such as different blanking clearances, different diameters of the extrusion punch and

What's the fuss about? Parent presentations of fussy eating to a parenting support helpline.

Science.gov (United States)

Harris, Holly A; Ria-Searle, Bonnie; Jansen, Elena; Thorpe, Karen

2018-06-01

To characterise parent presentations of fussy eating and mealtime interactions at a point of crisis, through analyses of real-time recordings of calls to a parenting helpline. Qualitative analysis included an inductive thematic approach to examine clinical parent presentations of fussy eating and derive underlying themes relating to mealtime interactions. Calls made to the Child Health Line regarding feeding concerns were recorded and transcribed verbatim. From a corpus of 723 calls made during a 4-week period in 2009, twelve were from parents of children aged 6-48 months. Parents of infants (≤12 months, n 6) presented feeding concerns as learning challenges in the process of transitioning from a milk-based to a solid-based diet, while parents of toddlers (13-48 months, n 6) presented emotional accounts of feeding as an intractable problem. Parents presented their child's eating behaviour as a battle (conflict), in which their children's agency over limited intake and variety of foods (child control) was constructed as 'bad' or 'wrong'. Escalating parent anxiety (parent concern) had evoked parent non-responsive feeding practices or provision of foods the child preferred. Real-time descriptions of young children's fussy eating at a time of crisis that initiated parents' call for help have captured the highly charged emotional underpinnings of mealtime interactions associated with fussy eating. Importantly, they show the child's emerging assertion of food autonomy can escalate parents' emotional distress that, in the short term, initiates non-responsive feeding practices. The current study identifies the importance of educational and emotional support for parents across the period of introducing solids.

Efficiency of Gamma Radiation Alone or In Combination With Heat Stress on Metal Contents of Parents and First Generation of Males of The Cotton Leaf Worm Spodoptera Littoralis

International Nuclear Information System (INIS)

El-Degwi, M.S.; Alm El-Din, M.M.S.; Hazaa, M.A.M.

2011-01-01

The main objective of the present investigation was to determine the influence of gamma radiation either alone or in combination with heat on the contents and concentration of elements detected in the whole body tissue of male parents and F1 generation of Spodoptera littoralis treated as full grown pupae. The doses applied were 75, 100 and 150 Gy. The data revealed the presence of eight elements in parents and F1 generation exposed to different heat stress (27±2, 33 and 37 degree C and P and Mg were the major contents. The obtained data indicated also that there were no differences in the composition of individual elements between male parents and male F1 generation. There were differences in relative concentration which depends on irradiation dose. The combination treatments were effective on elements concentration. The total concentration of light elements of male parents and F1 generation was increased by increasing the radiation dose. In the contrary, the concentration of heavy element was decreased by increasing the radiation dose. It could be concluded that gamma radiation and/or heat was effective on elements concentrations in adult body of male parents and F1 generation of Spodoptera littoralis which served as biological indicator of normal metabolic pathways and/or biological activity.

Transactional processes in children born preterm: Influences of mother-child interactions and parenting stress.

Science.gov (United States)

Gerstein, Emily D; Poehlmann-Tynan, Julie

2015-10-01

This prospective, longitudinal study examined the transactional relations among perceived maternal parenting stress, maternal insensitivity, and child behavior across toddlerhood through age 6 within families of a child born preterm. A sample of 173 mother-child dyads were followed from just before the infant was discharged from the neonatal intensive care unit to 6 years of age, with observational measurements of maternal insensitivity and child noncompliance (24 and 36 months), maternal self-reports of perceived parenting stress (24 months, 36 months, 6 years), and maternal reports of child externalizing behavior at 6 years. Results indicated that maternal insensitivity at 36 months significantly mediated the relation between parenting stress at 24 months and externalizing behaviors at 6 years. Parenting stress was also directly associated with child noncompliance at 36 months and with child externalizing behavior at 6 years. Neonatal risk was associated with increased maternal insensitivity at 24 months, but also decreased parenting stress at 24 months. No significant "child effects" from child behavior to either maternal insensitivity or parenting stress were found. Parenting stress appears to play a critical role for children born preterm, and it is associated with children's behavior both directly and through its influence on parenting. The role of neonatal risk needs continued investigation, as families traditionally considered to be at lower risk may still face significant challenges. (c) 2015 APA, all rights reserved).

Potential for thermochemical conversion of biomass residues from the integrated sugar-ethanol process - Fate of ash and ash-forming elements.

Science.gov (United States)

Dirbeba, Meheretu Jaleta; Brink, Anders; DeMartini, Nikolai; Zevenhoven, Maria; Hupa, Mikko

2017-06-01

In this work, potential for thermochemical conversion of biomass residues from an integrated sugar-ethanol process and the fate of ash and ash-forming elements in the process are presented. Ash, ash-forming elements, and energy flows in the process were determined using mass balances and analyses of eight different biomass samples for ash contents, elemental compositions, and heating values. The results show that the ash content increases from the sugarcane to the final residue, vinasse. The cane straw, which is left in the field, contains one-third of the energy and 25% of the K and Cl while the vinasse contains 2% of the energy and 40% of the K and Cl in the cane. K and Cl in biomass fuels cause corrosion and fouling problems in boilers and gasifiers. Over 85% of these elements in the straw are water soluble indicating that water leaching would improve it for utilization in thermochemical conversion. Copyright © 2017 Elsevier Ltd. All rights reserved.

Increasing the efficiency of designing hemming processes by using an element-based metamodel approach

Science.gov (United States)

Kaiser, C.; Roll, K.; Volk, W.

2017-09-01

In the automotive industry, the manufacturing of automotive outer panels requires hemming processes in which two sheet metal parts are joined together by bending the flange of the outer part over the inner part. Because of decreasing development times and the steadily growing number of vehicle derivatives, an efficient digital product and process validation is necessary. Commonly used simulations, which are based on the finite element method, demand significant modelling effort, which results in disadvantages especially in the early product development phase. To increase the efficiency of designing hemming processes this paper presents a hemming-specific metamodel approach. The approach includes a part analysis in which the outline of the automotive outer panels is initially split into individual segments. By doing a para-metrization of each of the segments and assigning basic geometric shapes, the outline of the part is approximated. Based on this, the hemming parameters such as flange length, roll-in, wrinkling and plastic strains are calculated for each of the geometric basic shapes by performing a meta-model-based segmental product validation. The metamodel is based on an element similar formulation that includes a reference dataset of various geometric basic shapes. A random automotive outer panel can now be analysed and optimized based on the hemming-specific database. By implementing this approach into a planning system, an efficient optimization of designing hemming processes will be enabled. Furthermore, valuable time and cost benefits can be realized in a vehicle’s development process.

Simulation of the cabling process for Rutherford cables: An advanced finite element model

Science.gov (United States)

Cabanes, J.; Garlasche, M.; Bordini, B.; Dallocchio, A.

2016-12-01

In all existing large particle accelerators (Tevatron, HERA, RHIC, LHC) the main superconducting magnets are based on Rutherford cables, which are characterized by having: strands fully transposed with respect to the magnetic field, a significant compaction that assures a large engineering critical current density and a geometry that allows efficient winding of the coils. The Nb3Sn magnets developed in the framework of the HL-LHC project for improving the luminosity of the Large Hadron Collider (LHC) are also based on Rutherford cables. Due to the characteristics of Nb3Sn wires, the cabling process has become a crucial step in the magnet manufacturing. During cabling the wires experience large plastic deformations that strongly modify the geometrical dimensions of the sub-elements constituting the superconducting strand. These deformations are particularly severe on the cable edges and can result in a significant reduction of the cable critical current as well as of the Residual Resistivity Ratio (RRR) of the stabilizing copper. In order to understand the main parameters that rule the cabling process and their impact on the cable performance, CERN has developed a 3D Finite Element (FE) model based on the LS-Dyna® software that simulates the whole cabling process. In the paper the model is presented together with a comparison between experimental and numerical results for a copper cable produced at CERN.

Demonstration of pyropartitioning process by using genuine high-level liquid waste. Reductive-extraction of actinide elements from chlorination product

International Nuclear Information System (INIS)

Uozumi, Koichi; Iizuka, Masatoshi; Kurata, Masaki; Ougier, Michel; Malmbeck, Rikard; Winckel, Stefaan van

2009-01-01

The pyropartitioning process separates the minor actinide elements (MAs) together with uranium and plutonium from the high-level liquid waste generated at the Purex reprocessing of spent LWR fuel and introduces them to metallic fuel cycle. For the demonstration of this technology, a series experiment using 520g of genuine high-level liquid waste was started and the conversion of actinide elements to their chlorides was already demonstrated by denitration and chlorination. In the present study, a reductive extraction experiment in molten salt/liquid cadmium system to recover actinide elements from the chlorination product of the genuine high-level liquid waste was performed. The results of the experiment are as following; 1) By the addition of the cadmium-lithium alloy reductant, almost all of plutonium and MAs in the initial high-level liquid waste were recovered in the cadmium phase. It means no mass loss during denitration, chlorination, and reductive-extraction. 2) The separation factor values of plutonium, MAs, and rare-earth fission product elements versus uranium agreed with the literature values. Therefore, actinide elements will be separated from fission product elements in the actual system. Hence, the pyropartitioning process was successfully demonstrated. (author)

Mantle End-Members: The Trace Element Perspective

Science.gov (United States)

Willbold, M.; Stracke, A.; Hofmann, A. W.

2004-12-01

. Although there are some trace element characteristics common to all EM-type basalts, which distinguish them from HIMU-type basalts (e.g. uniformly high Th/U ratios of 4.7 ± 0.3, and enrichment in Cs-U), each suite of EM-type basalts has unique trace element signatures that distinguish them from any other suite of EM-type basalts. This is especially obvious when comparing the trace element composition of EM basalts from one isotopic family, for example EM1-type basalts from Tristan, Gough and Pitcairn. Consequently, the trace element systematics of EM-type basalts suggest that there are many different EM-type sources, whereas the isotopic composition of EM-type basalts suggest derivation from two broadly similar sources, i.e. EM1 and EM2. The large variability in subducting sediments with respect to both parent-daughter (e.g. Rb/Sr, Sm/Nd, U/Pb, Th/Pb,...) and other trace element ratios makes it unlikely that there are reproducible mixtures of sediments leading to two different isotopic evolution paths (EM1 and EM2) while preserving a range of incompatible element contents for each isotopic family, as would be required to reconcile the isotopic and trace element characteristics of EM-type basalts. Although this does not a priori argue against sediments as possible source components for OIB, it does argue against two distinct groups of sediments as EM1 and EM2 sources. Further characterization of sources with the same general origin (e.g. a certain type of crust or lithosphere) or identification of processes leading to reservoirs with similar parent-daughter ratio characteristics but different incompatible trace element contents could resolve the apparent conundrum.

Structural assessment of aerospace components using image processing algorithms and Finite Element models

DEFF Research Database (Denmark)

Stamatelos, Dimtrios; Kappatos, Vassilios

2017-01-01

Purpose – This paper presents the development of an advanced structural assessment approach for aerospace components (metallic and composites). This work focuses on developing an automatic image processing methodology based on Non Destructive Testing (NDT) data and numerical models, for predicting...... the residual strength of these components. Design/methodology/approach – An image processing algorithm, based on the threshold method, has been developed to process and quantify the geometric characteristics of damages. Then, a parametric Finite Element (FE) model of the damaged component is developed based...... on the inputs acquired from the image processing algorithm. The analysis of the metallic structures is employing the Extended FE Method (XFEM), while for the composite structures the Cohesive Zone Model (CZM) technique with Progressive Damage Modelling (PDM) is used. Findings – The numerical analyses...

The Impact of Premature Childbirth on Parental Bonding

Directory of Open Access Journals (Sweden)

Hannah N. Hoffenkamp

2012-07-01

Full Text Available The development of an affectionate parent-infant bond is essential for a newborn infant's survival and development. However, from evolutionary theory it can be derived that parental bonding is not an automatic process, but dependent on infants' cues to reproductive potential and parents' access to resources. The purpose of the present study was to examine the process of bonding in a sample of Dutch mothers (n = 200 and fathers (n = 193 of full-term (n = 69, moderately premature (n = 68, and very premature infants (n = 63. During the first month postpartum parents completed the Pictorial Representation of Attachment Measure (PRAM and Postpartum Bonding Questionnaire (PBQ. Longitudinal analyses revealed that mothers' PRAM scores decreased after moderately preterm delivery, whereas decreases in PRAM scores occurred in both parents after very preterm delivery. As lower PRAM scores represent stronger feelings of parent-infant connectedness, our findings suggest a higher degree of bonding after premature childbirth. Results of the PBQ analysis were in line with PRAM outcomes, as parents of preterm infants reported less bonding problems compared to parents of full-terms. These findings support the hypothesis that in affluent countries with adequate resources, bonding in parents of preterm infants on average may be higher than in parents of full-term infants.

'Remote Parenting': Parents' Perspectives on, and Experiences of, Home and Preschool Collaboration

Science.gov (United States)

Vuorinen, Tuula

2018-01-01

This article explores parents' perspectives on, and experiences of, home and preschool collaboration. The data consist of in-depth interviews with 10 parents with one or several children attending preschool. The research process of gathering and analyzing data follows the procedures of constructivist grounded theory. The results show how parents…

A pilot study of the efficacy of a computerized executive functioning remediation training with game elements for children with ADHD in an outpatient setting: outcome on parent- and teacher-rated executive functioning and ADHD behavior.

Science.gov (United States)

van der Oord, S; Ponsioen, A J G B; Geurts, H M; Ten Brink, E L; Prins, P J M

2014-11-01

This pilot study tested the short- and long-term efficacy (9 weeks follow-up) of an executive functioning (EF) remediation training with game elements for children with ADHD in an outpatient clinical setting, using a randomized controlled wait-list design. Furthermore, in a subsample, that is, those treated with methylphenidate, additive effects of the EF training were assessed. A total of 40 children (aged 8-12 years) were randomized to the EF training or wait-list. The training consisted of a 25-session training of inhibition, cognitive flexibility, and working memory. Treatment outcome was assessed by parent- and teacher-rated EF, ADHD, oppositional deviant disorder, and conduct disorder symptoms. Children in the EF training showed significantly more improvement than those in the wait-list condition on parent-rated EF and ADHD behavior in the total sample and in the subsample treated with methylphenidate. Effects were maintained at follow-up. This pilot study shows promising evidence for the efficacy of an EF training with game elements. © 2012 SAGE Publications.

Parent Perspectives on the Individual Education Program Process and Product for the Child with Autism

Science.gov (United States)

Brandt, Camille M.

2011-01-01

This study examined the perspectives of parents of children with autism receiving special education services in an upper Midwestern state. This study sought to determine parent perspectives of priorities for the child's IEP, parent perspectives of content of the child's IEP, and parent perspectives of their experiences at the school, comfort level…

The influence of alloying elements on the hot-dip aluminizing process and on the subsequent high-temperature oxidation

International Nuclear Information System (INIS)

Glasbrenner, H.; Nold, E.; Voss, Z.

1997-01-01

For hot dip aluminizing HDA an Al melt was doped with one of the elements Mo, W or Nb with a nominal composition of about 1 wt%. In case of W, the nominal composition was achieved, not so for Mo and Nb. The influence of these elements on the coating formed and on the following oxidation process was investigated. Hot dip aluminizing was carried out at 800 C for 5 min under dry Ar atmosphere. The oxidation experiments were performed at 950 C for 24 h in air. Compared to the HDA processes with pure Al, the addition of the alloying elements lead to thinner intermetallic layers. A change in the oxidation behavior was observed as well concerning the suppression of internal oxidation and the formation of dense and close oxide scales. (orig.)

Culture and Family Process: Measures of Familism for Filipino and Korean American Parents.

Science.gov (United States)

Choi, Yoonsun; Kim, Tae Yeun; Noh, Samuel; Lee, Jeanette; Takeuchi, David

2017-10-15

This study tests the psychometric properties of multiple survey items and scales that are either underused or newly developed to assess familism among Asian Americans. Using data collected from 150 Filipino and 188 Korean American parents (mostly mothers) in the Midwest region in 2013, the measures were examined for validity and reliability for each group and, when appropriate, for cross-cultural equivalence across the groups. Several scales and their items showed high quality psychometric properties and are ready for use to more accurately assess family process of each target group and to conduct comparative analyses. The findings also show that, contrary to the expectation, Filipino American families express more traditional aspects of familism than do Korean American families, and are more likely to reinforce traditional familism beliefs and behaviors among their children. This study reinforces a need for more empirical- and subgroup-specific research effort. © 2017 Family Process Institute.

Childhood inflammatory bowel disease: parental concerns and expectations.

Science.gov (United States)

Day, A-S; Whitten, K-E; Bohane, T-D

2005-02-21

To document the concerns and expectations of parents of children with inflammatory bowel disease (IBD) within the context of a multidisciplinary IBD clinic, and to highlight the importance of a holistic approach to the care of these children. The parents of 60 children with IBD were surveyed by mailed questionnaire. Parents were asked to provide details of their concerns regarding their child's condition and to express their expectations of medical care. In addition, enquiry was made in respect to the respondents' learning about IBD. Forty-six questionnaires (77%) returned. Fifty-two percent of the patients were male. Patients were aged a mean of 10.9 (+/-4.1) years and diagnosed at an average age of 2.1 (+/-1.8) years previously. The most common concerns expressed by the parents related to the side- effects of medications and the future prospects for their child. Overall, parents were satisfied with aspects of care within the IBD clinic but many suggested additional personnel such as counselors or educators should be available. Parents also reported the need for continuing education and easy access to up-to-date information. Parents of children and adolescents with IBD have many common concerns regarding their child's condition. On-going attention to holistic care, including psychosocial and educational elements for patients and families, is appropriate in the context of the chronic and unpredictable nature of IBD.

Cell-element simulations to optimize the performance of osmotic processes in porous membranes

KAUST Repository

Calo, Victor M.

2018-05-11

We present a new module of the software tool PoreChem for 3D simulations of osmotic processes at the cell-element scale. We consider the most general fully coupled model (see e.g., Sagiv and Semiat (2011)) in 3D to evaluate the impact on the membrane performance of both internal and external concentration polarization, which occurs in a cell-element for different operational conditions. The model consists of the Navier–Stokes–Brinkman system to describe the free fluid flow and the flow within the membrane with selective and support layers, a convection–diffusion equation to describe the solute transport, and nonlinear interface conditions to fully couple these equations. First, we briefly describe the mathematical model and discuss the discretization of the continuous model, the iterative solution, and the software implementation. Then, we present the analytical and numerical validation of the simulation tool. Next, we perform and discuss numerical simulations for a case study. The case study concerns the design of a cell element for the forward osmosis experiments. Using the developed software tool we qualitatively and quantitatively investigate the performance of a cell element that we designed for laboratory experiments of forward osmosis, and discuss the differences between the numerical solutions obtained with the full 3D and reduced 2D models. Finally, we demonstrate how the software enables investigating membrane heterogeneities.

Hearing Parents of Children with Hearing Loss: Perceptions of the IEP Process

Science.gov (United States)

Stegman, Robin Fern

2016-01-01

Under federal guidelines, parents of school-aged children with hearing loss are required to attend an individualized education program (IEP) meeting on behalf of their child. However, it remains unclear how prepared hearing parents are to oversee development of IEPs that guarantee their children the best educational outcomes, as well as how much…

Effect of RE elements on the microstructural evolution of as cast and SIMA processed Mg-4Al alloy

International Nuclear Information System (INIS)

Nayyeri, Mohammad Javad; Khomamizadeh, Farzad

2011-01-01

Research highlights: → In this article, we examined the effect of Rare Earth elements on the microstructural development of as cast and semisolid Mg-4Al alloy produced by SIMA process. → Our investigations contained metallographic observation, scanning electron microscope and quantitative metallographic methods. → Results showed that alloy's dendrites turn into larger fully dendritic shape with sharp and narrow arms from equiaxed rosette type as the amount of RE elements increased from 0 through 4 percent. → Also we studied the effect of RE elements on the quality and quantityof intragranular liquid droplets as well as kinetic of microstructural changes. → Moreover, the effect of REs on the other parameters such as fraction of liquid, shape factor and particle size was studied.In this article, we examined the effect of Rare Earth elements on the microstructural development of as cast and semisolid Mg-4Al alloy produced by SIMA process. Our investigations contained metallographic observation, scanning electron microscope and quantitative metallographic methods. Results showed that alloy's dendrites turn into larger fully dendritic shape with sharp and narrow arms from equiaxed rosette type as the amount of RE elements increased from 0 through 4 percent. Also we studied the effect of RE elements on the quality and quantityof intragranular liquid droplets as well as kinetic of microstructural changes. Moreover, the effect of REs on the other parameters such as fraction of liquid, shape factor and particle size was studied. - Abstract: In the present article, the effect of Rare Earth elements on the microstructural development of as cast and semisolid Mg-4Al alloy produced by SIMA process is studied. Investigation conducted by metallographic observation, scanning electron microscope and quantitative metallographic methods. Results showed that alloy's dendrites turn into larger fully dendritic shape with sharp and narrow arms from equiaxed rosette type as the

The Process and Impact of Stakeholder Engagement in Developing a Pediatric Intensive Care Unit Communication and Decision-Making Intervention.

Science.gov (United States)

Michelson, Kelly N; Frader, Joel; Sorce, Lauren; Clayman, Marla L; Persell, Stephen D; Fragen, Patricia; Ciolino, Jody D; Campbell, Laura C; Arenson, Melanie; Aniciete, Danica Y; Brown, Melanie L; Ali, Farah N; White, Douglas

2016-12-01

Stakeholder-developed interventions are needed to support pediatric intensive care unit (PICU) communication and decision-making. Few publications delineate methods and outcomes of stakeholder engagement in research. We describe the process and impact of stakeholder engagement on developing a PICU communication and decision-making support intervention. We also describe the resultant intervention. Stakeholders included parents of PICU patients, healthcare team members (HTMs), and research experts. Through a year-long iterative process, we involved 96 stakeholders in 25 meetings and 26 focus groups or interviews. Stakeholders adapted an adult navigator model by identifying core intervention elements and then determining how to operationalize those core elements in pediatrics. The stakeholder input led to PICU-specific refinements, such as supporting transitions after PICU discharge and including ancillary tools. The resultant intervention includes navigator involvement with parents and HTMs and navigator-guided use of ancillary tools. Subsequent research will test the feasibility and efficacy of our intervention.

The Process and Impact of Stakeholder Engagement in Developing a Pediatric Intensive Care Unit Communication and Decision-Making Intervention

Science.gov (United States)

Frader, Joel; Sorce, Lauren; Clayman, Marla L; Persell, Stephen D; Fragen, Patricia; Ciolino, Jody D; Campbell, Laura C; Arenson, Melanie; Aniciete, Danica Y; Brown, Melanie L; Ali, Farah N; White, Douglas

2016-01-01

Stakeholder-developed interventions are needed to support pediatric intensive care unit (PICU) communication and decision-making. Few publications delineate methods and outcomes of stakeholder engagement in research. We describe the process and impact of stakeholder engagement on developing a PICU communication and decision-making support intervention. We also describe the resultant intervention. Stakeholders included parents of PICU patients, healthcare team members (HTMs), and research experts. Through a year-long iterative process, we involved 96 stakeholders in 25 meetings and 26 focus groups or interviews. Stakeholders adapted an adult navigator model by identifying core intervention elements and then determining how to operationalize those core elements in pediatrics. The stakeholder input led to PICU-specific refinements, such as supporting transitions after PICU discharge and including ancillary tools. The resultant intervention includes navigator involvement with parents and HTMs and navigator-guided use of ancillary tools. Subsequent research will test the feasibility and efficacy of our intervention. PMID:28725847

Intellectual Disabilities and Neglectful Parenting: Preliminary Findings on the Role of Cognition in Parenting Risk

Science.gov (United States)

Azar, Sandra T.; Stevenson, Michael T.; Johnson, David R.

2012-01-01

Parents with intellectual disabilities (PID) are overrepresented in the child protective services (CPS) system. This study examined a more nuanced view of the role of cognition in parenting risk. Its goal was to validate a social information processing (SIP) model of child neglect that draws on social cognition research and advances in…

Parent-child interaction: Does parental language matter?

Science.gov (United States)

Menashe, Atara; Atzaba-Poria, Naama

2016-11-01

Although parental language and behaviour have been widely investigated, few studies have examined their unique and interactive contribution to the parent-child relationship. The current study explores how parental behaviour (sensitivity and non-intrusiveness) and the use of parental language (exploring and control languages) correlate with parent-child dyadic mutuality. Specifically, we investigated the following questions: (1) 'Is parental language associated with parent-child dyadic mutuality above and beyond parental behaviour?' (2) 'Does parental language moderate the links between parental behaviour and the parent-child dyadic mutuality?' (3) 'Do these differences vary between mothers and fathers?' The sample included 65 children (M age  = 1.97 years, SD = 0.86) and their parents. We observed parental behaviour, parent-child dyadic mutuality, and the type of parental language used during videotaped in-home observations. The results indicated that parental language and behaviours are distinct components of the parent-child interaction. Parents who used higher levels of exploring language showed higher levels of parent-child dyadic mutuality, even when accounting for parental behaviour. Use of controlling language, however, was not found to be related to the parent-child dyadic mutuality. Different moderation models were found for mothers and fathers. These results highlight the need to distinguish parental language and behaviour when assessing their contribution to the parent-child relationship. © 2016 The British Psychological Society.

Trace element analysis of soil type collected from the Manjung and central Perak

Energy Technology Data Exchange (ETDEWEB)

Azman, Muhammad Azfar, E-mail: m-azfar@nuclearmalaysia.gov.my; Hamzah, Suhaimi; Rahman, Shamsiah Abdul; Elias, Md Suhaimi; Abdullah, Nazaratul Ashifa; Hashim, Azian; Shukor, Shakirah Abd; Kamaruddin, Ahmad Hasnulhadi Che [Blok 18, Makmal Analisis Kimia (Aca/Bas), Agensi Nuklear Malaysia, 43000 Kajang, Selangor (Malaysia)

2015-04-29

Trace elements in soils primarily originated from their parent materials. Parents’ material is the underlying geological material that has been undergone different types of chemical weathering and leaching processes. Soil trace elements concentrations may be increases as a result of continuous input from various human activities, including power generation, agriculture, mining and manufacturing. This paper describes the Neutron Activation Analysis (NAA) method used for the determination of trace elements concentrations in part per million (ppm) present in the terrestrial environment soil in Perak. The data may indicate any contamination of trace elements contributed from human activities in the area. The enrichment factors were used to check if there any contamination due to the human activities (power plants, agricultural, mining, etc.) otherwise the values would serve as a baseline data for future study. The samples were collected from 27 locations of different soil series in the area at two different depths: the top soil (0-15cm) and the sub soil (15-30cm). The collected soil samples were air dried at 60°C and passed through 2 µm sieve. Instrumental Neutron Activation Analysis (NAA) has been used for the determination of trace elements. Samples were activated in the Nuclear Malaysia TRIGA Mark II reactor followed by gamma spectrometric analysis. By activating the stable elements in the samples, the elements can be determined from the intensities of gamma energies emitted by the respected radionuclides.

Parental smoking and children's attention to smoking cues

NARCIS (Netherlands)

Lochbühler, K.C.; Otten, R.; Voogd, H.F.J.M.; Engels, R.C.M.E.

2012-01-01

Research has shown that children with smoking parents are more likely to initiate smoking than children with non-smoking parents. So far, these effects have been explained through genetic factors, modelling and norm-setting processes. However, it is also possible that parental smoking affects

Parenting and Digital Media.

Science.gov (United States)

Coyne, Sarah M; Radesky, Jenny; Collier, Kevin M; Gentile, Douglas A; Linder, Jennifer Ruh; Nathanson, Amy I; Rasmussen, Eric E; Reich, Stephanie M; Rogers, Jean

2017-11-01

Understanding the family dynamic surrounding media use is crucial to our understanding of media effects, policy development, and the targeting of individuals and families for interventions to benefit child health and development. The Families, Parenting, and Media Workgroup reviewed the relevant research from the past few decades. We find that child characteristics, the parent-child relationship, parental mediation practices, and parents' own use of media all can influence children's media use, their attitudes regarding media, and the effects of media on children. However, gaps remain. First, more research is needed on best practices of parental mediation for both traditional and new media. Ideally, this research will involve large-scale, longitudinal studies that manage children from infancy to adulthood. Second, we need to better understand the relationship between parent media use and child media use and specifically how media may interfere with or strengthen parent-child relationships. Finally, longitudinal research on how developmental processes and individual child characteristics influence the intersection between media and family life is needed. The majority of children's media use takes place within a wider family dynamic. An understanding of this dynamic is crucial to understanding child media use as a whole. Copyright © 2017 by the American Academy of Pediatrics.

Parental Responsibilities to Children in the Republic of Kosovo

Directory of Open Access Journals (Sweden)

MSc. Shpresa Ibrahimi

2014-06-01

Full Text Available For a long time, in Albanian customary law, parental responsibilities were an exclusive competency of fathers. In positive law, especially with the reform of the legal system in the Republic of Kosovo, now both parents are fully equal in exercising parental responsibilities. Children are the future of any society, and therefore, their upraising, education and proper welfare of children is an objective and responsibility not only for the parents, but also of societal and state institutions. Although parent-child relations incorporate moral, biological and legal elements, the absolute power of parents must be shared between parents and proper social and educational policies, in the heart of which are always the best interests of the child. Kosovo has already adopted a complete legal framework, approximated to the standards of the European Union and international instruments which clearly provide on the rights of the child and responsibilities of parents and institutions in enjoying such rights. Within the range of this new legal framework, we make an effort of addressing parental responsibilities, which are exercised in terms of personality of children, and derive as a result of personal non-material relations. Our work is focused on a study of parental responsibilities in terms of giving a personal name, healthy development, education and upraising. We have also analysed several court rulings related to the rights of the child and responsibilities of parents in enjoying such rights, which we believe are to enrich and render the paper more interesting.

Initial H2O content and conditions of parent magma origin for Gorely volcano (Southern Kamchatka) estimated by trace element thermobarometry

Science.gov (United States)

Nazarova, D. P.; Portnyagin, M. V.; Krasheninnikov, S. P.; Mironov, N. L.; Sobolev, A. V.

2017-01-01

The formation conditions of the parental magmas of Gorely volcano, which is located behind a volcanic front in Southern Kamchatka, have been evaluated using the modern methods of micro-element thermobarometry. These magmas contained 1.7 ± 0.8 (2σ) wt % of H2O, the majority (82%) of which has been lost from inclusions. They crystallized at 1121 ± 17°C and an oxygen fugacity of ΔQFM 1.2 ± 0.2, and could have been produced by about 11% melting of an enriched MORB source (E-DMM) at a temperature of about 1270°C, and a pressure of about 1.5 GPa. A distinctive feature of Gorely volcano, compared with frontal volcanoes of Kamchatka, is the unusually high temperature (925 ± 20°C) of formation of the subduction component corresponding to the region of existence of water-bearing melts.

Integrating couple relationship education in antenatal education - A study of perceived relevance among expectant Danish parents

DEFF Research Database (Denmark)

Axelsen, Solveig Forberg; Brixval, Carina Sjöberg; Due, Pernille

2014-01-01

Little is known about which elements antenatal education should encompass to meet the needs of parents today. Psycho-social aspects relating to couple- and parenthood have generally not been covered in Danish antenatal education, although studies suggest that parents need this information. The aim...

The neonatal nurses' view of their role in emotional support of parents and its complexities.

Science.gov (United States)

Turner, Melanie; Chur-Hansen, Anna; Winefield, Helen

2014-11-01

To explore the nurses' views of their role both in the neonatal intensive care unit and in the provision of interacting with, and emotionally supporting, families. The neonatal intensive care nurse has a large and complex clinical role and also a role of emotional supporter for parents in the neonatal intensive care unit. Identifying components of their role and recognising the elements within the nursery that obstruct or encourage this role can allow for modification of nurse education and peer support. Qualitative study based on semistructured interviews. Nine neonatal nurses from a single neonatal intensive care unit were interviewed and the data analysed thematically using NVIVO version 10. Participants viewed their role as an enjoyable yet difficult one, requiring seniority, training and experience. They provided support to parents by communicating, listening, providing individualised support and by encouraging parental involvement with their baby. Constructive elements that contributed to the provision of support included a positive neonatal intensive care unit environment and providing a parent support group. More obstructive elements were a lack of physical neonatal intensive care unit space, little time available for nurse-to-parent conversation and language and cultural barriers between nurses and parents. The role of the neonatal nurse in providing emotional support is complex and requires a high level of ongoing support and education for staff, and minimisation of physical and staff-related obstructions. The modern neonatal intensive care unit offers complex medical and nursing services and with this care comes higher needs from both babies and their parents. Neonatal intensive care unit nurses should be supported in their roles by having peer support available in the neonatal intensive care unit and education and training in emotional support and counselling skills. The nursing staff also require a comfortable and practical physical working space in

The formation and the evolution process of the Jilin meteorite

International Nuclear Information System (INIS)

Duyang, Z.Y.

1983-01-01

Based on the data from an integrated study by a multidisciplinary group on the Jilin meteorite, we discuss the following aspects concerning its formation and evolution: (1) The fractionation-condensation of the solar nebula was examined based on the condensation and solidification age and the mineral composition of the Jilin meteorite. (2) The thermometamorphic history of the Jilin parent body was discussed based on the data on the loss of rare gases, the chemical composition of the whole rock, the self-purification of rare-earth elements and the composition stability of olivine and orthopyroxene. (3) The cooling process of the Jilin parent body was analyzed according to the Ni content and the width of taenite, and the retentivity of argon and fission tracks in the minerals. (4) The breakup of the Jilin parent body and its cosmic ray irradiation history: Based on the measurements of the cosmogenic nuclides as He 3 , Ne/sup 20,21,22/, Ar 38 , Na 22 , Al 26 , Mn 54 , Mn 53 , Co 60 etc., a two-stage model of the irradiation history of the Jilin meteorite was proposed. From the data on the Jilin meteorite parent body of the first stage (the age = 10--11 MY and r = 10 m) and that of the second stage (the age = 0.3--0.5 MY and r = 80--90 cm). The relative positions of samples in the parent body, their burial depths as well as the post-atmospheric loss by ignition were determined. (5) The falling process of the Jilin meteorite: The orbits of the Jilin meteor in the solar system and in the atmosphere, and its falling process were discussed

Social Networks Used by Teens and Parental Control of Their Online Communication

Directory of Open Access Journals (Sweden)

M. Shehu

2017-06-01

Full Text Available The Internet plays important functions in identity formation, personal autono-my, and relationships outside the family. It allows teens to develop their own interests, to identify with others. The aim of the study is to present concrete evidence regarding to the communication through social networks and parental care in the management of online communication. Referring questionnaire “Student Needs Assessment Survey” by N. E. Willard (2007, but the author has selected questions to the scope of its study. The sample of the study includes 255 pupils aged 15 – 19 (110 Male and 145 Female. The statistical data processing was performed by SPPS statistical program, version 20. Cronbach’s Alpha 0.764 were used to assess the reliability of the instrument. The most favorite activity on the Internet by the teens is navigation on the In-ternet to see/learn new things (68.6%, during the week the subjects spend ap-proximately less than 2 hours per day (34.1% of them. Most of teenagers (82.7% claims to have communication with their parents about how they treats their friends and 56.5% of them say that sometimes have control by their par-ents for what they do online. If pupils would victim of pressure on the internet and do not have opportunities to can be contained by those 69% of them approve that they would tell to their parents and also (63.9% to school staff members. When there have been cases of violence, even threatening suicide rate of reporting and collaboration between parent - teacher is high, while in other elements resulting lower interest rates. One of the main factors in man-agement of this online communication and Internet is the parent care, which is considered most important in terms of education and not only.

Should advertising parental care be honest?

OpenAIRE

Kokko, H.

1998-01-01

Species with paternal care show less exaggerated sexual ornamentation than those in which males do not care, although direct benefits from paternal care can vastly exceed the indirect benefits of mate choice. Whether condition-dependent handicaps can signal parenting ability is controversial. The good-parent process predicts the evolution of honest signals of parental investment, whereas the differential-allocation model suggests a trade-off between the attractiveness of a mate and his care-p...

Cultural Expectations and Parental Involvement in Early Literacy

OpenAIRE

Meredith, Stephens; Richard, Blight

2003-01-01

This study investigates the involvement of parents in early literacy in Japanese and Australian primary schools. While both schools valued support from parents in the education process, different cultural expectations are evident in each system. A number of significant areas are discussed, including traditional domestic situations in Japan, changing work cultures in Australia, education and maternal duties, higher expectations in Japan, parents supporting homework activities, parents supporti...

Parent and adolescent reports of parenting when a parent has a history of depression: associations with observations of parenting.

Science.gov (United States)

Parent, Justin; Forehand, Rex; Dunbar, Jennifer P; Watson, Kelly H; Reising, Michelle M; Seehuus, Martin; Compas, Bruce E

2014-02-01

The current study examined the congruence of parent and adolescent reports of positive and negative parenting with observations of parent-adolescent interactions as the criterion measure. The role of parent and adolescent depressive symptoms in moderating the associations between adolescent or parent report and observations of parenting also was examined. Participants were 180 parents (88.9 % female) with a history of clinical depression and one of their 9-to-15 year old children (49.4 % female). Parents and adolescents reported on parenting skills and depressive symptoms, and parenting was independently observed subsequently in the same session. Findings indicated adolescent report of positive, but not negative, parenting was more congruent with observations than parent report. For negative parenting, depressive symptoms qualified the relation between the parent or adolescent report and independent observations. For parents, higher levels of depressive symptoms were associated with more congruence with observed parenting (supporting a depressive realism hypothesis) whereas an opposite trend emerged for adolescents (providing some supporting evidence for a depression-distortion hypothesis).

The Role of Marital Discord and Parenting in Relations between Parental Problem Drinking and Child Adjustment

Science.gov (United States)

Keller, Peggy S.; Cummings, E. Mark; Davies, Patrick T.

2005-01-01

Background: Research suggests that children exposed to parental drinking problems are at risk for maladjustment. However, the potential impact of drinking problems in a community sample and the processes involved in the relationship between parental drinking and child outcomes have rarely been examined. Method: A community sample of 235 mothers…

Retrospective reports of parental physical affection and parenting style: a study of Finnish twins.

Science.gov (United States)

Harlaar, Nicole; Santtila, Pekka; Björklund, Johanna; Alanko, Katarina; Jern, Patrick; Varjonen, Markus; von der Pahlen, Bettina; Sandnabba, Kenneth

2008-08-01

Individual differences in parenting behaviors are due, in part, to genetic factors. In the present study, the authors sought to determine whether the degree of genetic influence varied according to the type of parental behavior under consideration. A population-based sample of 2,334 pairs of Finnish twins provided ratings on the physical affection, control, abusiveness, and indifference shown by their father and mother during childhood. Genetic influences, shared environmental influences, and nonshared environmental influences accounted for a small-to-medium proportion (17%-30%), a small-to-large proportion (22%-44%), and a medium-to-large proportion (37%-55%) of the variance in each parenting measure, respectively. There were no significant differences in effect sizes for mothers and fathers or across the 4 types of parental behavior. The genetic results may reflect characteristic styles with which parents respond to genetically influenced behaviors of individuals (gene-environment correlations) or individual perceptions of this relationship (gene-person correlation processes). The findings have implications for intervention and prevention work with families and for interpretation of evidence for interactions between genes and parenting behaviors.

A Population-Based Comparison of Female and Male Same-Sex Parent and Different-Sex Parent Households.

Science.gov (United States)

Bos, Henny M W; Kuyper, Lisette; Gartrell, Nanette K

2018-03-01

This investigation compared Dutch same-sex parent and different-sex parent households on children's psychological well-being, parenting stress, and support in child rearing. It was also assessed whether associations among children's well-being, parenting stress, and support in child rearing were different in the two household types. Data were based on a nationally representative survey (N = 25,250). Matching was used to enhance similarity in background characteristics between both types of families. Parental and child characteristics were matched for 43 female same-sex parent, 52 male same-sex parent, and 95 different-sex parent households with offspring between 5 and 18 years old. No significant differences were found on children's well-being, problems in the parent-child relationship, being worried about the child, or the use of formal and informal support between mothers in same-sex and different-sex parent households or for fathers in same-sex and different-sex parent households. Regarding perceived confidence in child rearing, fathers in same-sex parent households and mothers in different-sex parent households felt less competent than their counterparts. Neither the associations between children's well-being and the predictors (parenting stress variables) nor those between support and the predictors (parenting stress and children's well-being) differed along household type. In this population-based study, the similarity in child outcomes regardless of household type confirms the results of prior investigations based on convenience samples. These findings are pertinent to family therapists, practitioners, court officials, and policymakers who seek information on parenting experiences and child outcomes in female and male same-sex parent families. © 2017 Family Process Institute.

Parents of children with enduring epilepsy: predictors of parenting stress and parenting

NARCIS (Netherlands)

Rodenburg, R.; Meijer, A.M.; Dekovic, M.; Aldenkamp, A.P.

2007-01-01

Objective: The goals of the work described here were (1) to predict parenting stress and parenting from stressors, resources, and parental coping behaviors in parents of children with epilepsy, and (2) to determine whether parenting stress mediates the effects of these predictors on parenting.

Parents of children with enduring epilepsy: predictors of parenting stress and parenting.

NARCIS (Netherlands)

Rodenburg, R.J.T.; Meijer, A.M.; Dekovic, M.; Aldenkamp, A.P.

2007-01-01

OBJECTIVE: The goals of the work described here were (1) to predict parenting stress and parenting from stressors, resources, and parental coping behaviors in parents of children with epilepsy, and (2) to determine whether parenting stress mediates the effects of these predictors on parenting.

Numerical investigation of a shot peening process by a finite element approach

DEFF Research Database (Denmark)

Liu, Hongsheng; Zhang, Xiaodan; Hansen, Niels

2014-01-01

Shot peening is a surface impact treatment widely used to improve the performance of a metal or a component. The better performance of the shot peened part is controlled by compressive residual stresses resulting from the plastic deformation of the surface layers by impacts of shot. The compressive...... residual stress is generally measured by X-ray diffraction. However, considerable cost and time are needed for such measurements. For this reason, in this work a 3D finite element (FE) model is introduced for a shot peening process. Through the FE simulations, the effect of process parameters...... such as damping ratio of material, friction coefficient, shot velocity and shot angle on the magnitude and distribution of the compressive residual stress is examined....

Parenting styles and bullying. The mediating role of parental psychological aggression and physical punishment.

Science.gov (United States)

Gómez-Ortiz, Olga; Romera, Eva María; Ortega-Ruiz, Rosario

2016-01-01

Studies concerning parenting styles and disciplinary practices have shown a relationship between both factors and bullying involvement in adolescence. The scarce available evidence suggests that abusive disciplinary practices increase teenagers' vulnerability to abuse in school or the likelihood of them becoming abusers of their peers in the same context. However, there is a lack of knowledge about the indirect effect of parenting styles in adolescents' bullying involvement through disciplinary practices, although a relationship between parenting styles and disciplinary practices has been shown. The aim of this research was to determine the mediating role of punitive parental discipline (physical punishment and psychological aggression) between the dimensions of parents' parenting styles and their children's involvement in bullying victimization and aggression. We used a sample comprising 2060 Spanish high school students (47.9% girls; mean age=14.34). Structural equation modeling was performed to analyze the data. The results confirmed the mediating role of parental discipline between the parenting practices analyzed and students' aggression and victimization. Significant gender-related differences were found for aggression involvement, where boys were for the most part linked to psychological aggression disciplinary practices and girls to physical punishment. Victimization directly correlated with parental psychological aggression discipline behavior across both sexes. In conclusion, the results seem to suggest that non-democratic parenting styles favor the use of punitive discipline, which increases the risk of adolescents' bullying involvement. Therefore, intervention programs must involve parents to make them aware about the important role they play in this process and to improve their parenting styles. Crown Copyright © 2015. Published by Elsevier Ltd. All rights reserved.

Elemental balance of SRF production process: solid recovered fuel produced from municipal solid waste.

Science.gov (United States)

Nasrullah, Muhammad; Vainikka, Pasi; Hannula, Janne; Hurme, Markku; Oinas, Pekka

2016-01-01

In the production of solid recovered fuel (SRF), certain waste components have excessive influence on the quality of product. The proportion of rubber, plastic (hard) and certain textiles was found to be critical as to the elemental quality of SRF. The mass flow of rubber, plastic (hard) and textiles (to certain extent, especially synthetic textile) components from input waste stream into the output streams of SRF production was found to play the decisive role in defining the elemental quality of SRF. This paper presents the mass flow of polluting and potentially toxic elements (PTEs) in SRF production. The SRF was produced from municipal solid waste (MSW) through mechanical treatment (MT). The results showed that of the total input chlorine content to process, 55% was found in the SRF and 30% in reject material. Of the total input arsenic content, 30% was found in the SRF and 45% in fine fraction. In case of cadmium, lead and mercury, of their total input content to the process, 62%, 38% and 30%, respectively, was found in the SRF. Among the components of MSW, rubber material was identified as potential source of chlorine, containing 8.0 wt.% of chlorine. Plastic (hard) and textile components contained 1.6 and 1.1. wt.% of chlorine, respectively. Plastic (hard) contained higher lead and cadmium content compared with other waste components, i.e. 500 mg kg(-1) and 9.0 mg kg(-1), respectively. © The Author(s) 2015.

Likelihood-based inference for discretely observed birth-death-shift processes, with applications to evolution of mobile genetic elements.

Science.gov (United States)

Xu, Jason; Guttorp, Peter; Kato-Maeda, Midori; Minin, Vladimir N

2015-12-01

Continuous-time birth-death-shift (BDS) processes are frequently used in stochastic modeling, with many applications in ecology and epidemiology. In particular, such processes can model evolutionary dynamics of transposable elements-important genetic markers in molecular epidemiology. Estimation of the effects of individual covariates on the birth, death, and shift rates of the process can be accomplished by analyzing patient data, but inferring these rates in a discretely and unevenly observed setting presents computational challenges. We propose a multi-type branching process approximation to BDS processes and develop a corresponding expectation maximization algorithm, where we use spectral techniques to reduce calculation of expected sufficient statistics to low-dimensional integration. These techniques yield an efficient and robust optimization routine for inferring the rates of the BDS process, and apply broadly to multi-type branching processes whose rates can depend on many covariates. After rigorously testing our methodology in simulation studies, we apply our method to study intrapatient time evolution of IS6110 transposable element, a genetic marker frequently used during estimation of epidemiological clusters of Mycobacterium tuberculosis infections. © 2015, The International Biometric Society.

Elements for successful sensor-based process control {Integrated Metrology}

International Nuclear Information System (INIS)

Butler, Stephanie Watts

1998-01-01

Current productivity needs have stimulated development of alternative metrology, control, and equipment maintenance methods. Specifically, sensor applications provide the opportunity to increase productivity, tighten control, reduce scrap, and improve maintenance schedules and procedures. Past experience indicates a complete integrated solution must be provided for sensor-based control to be used successfully in production. In this paper, Integrated Metrology is proposed as the term for an integrated solution that will result in a successful application of sensors for process control. This paper defines and explores the perceived four elements of successful sensor applications: business needs, integration, components, and form. Based upon analysis of existing successful commercially available controllers, the necessary business factors have been determined to be strong, measurable industry-wide business needs whose solution is profitable and feasible. This paper examines why the key aspect of integration is the decision making process. A detailed discussion is provided of the components of most importance to sensor based control: decision-making methods, the 3R's of sensors, and connectivity. A metric for one of the R's (resolution) is proposed to allow focus on this important aspect of measurement. A form for these integrated components which synergistically partitions various aspects of control at the equipment and MES levels to efficiently achieve desired benefits is recommended

Elements for successful sensor-based process control {Integrated Metrology}

Science.gov (United States)

Butler, Stephanie Watts

1998-11-01

Current productivity needs have stimulated development of alternative metrology, control, and equipment maintenance methods. Specifically, sensor applications provide the opportunity to increase productivity, tighten control, reduce scrap, and improve maintenance schedules and procedures. Past experience indicates a complete integrated solution must be provided for sensor-based control to be used successfully in production. In this paper, Integrated Metrology is proposed as the term for an integrated solution that will result in a successful application of sensors for process control. This paper defines and explores the perceived four elements of successful sensor applications: business needs, integration, components, and form. Based upon analysis of existing successful commercially available controllers, the necessary business factors have been determined to be strong, measurable industry-wide business needs whose solution is profitable and feasible. This paper examines why the key aspect of integration is the decision making process. A detailed discussion is provided of the components of most importance to sensor based control: decision-making methods, the 3R's of sensors, and connectivity. A metric for one of the R's (resolution) is proposed to allow focus on this important aspect of measurement. A form for these integrated components which synergistically partitions various aspects of control at the equipment and MES levels to efficiently achieve desired benefits is recommended.

Parent and Adolescent Reports of Parenting When a Parent Has a History of Depression: Associations with Observations of Parenting