bluuebunny/crossref_metadata_2025_split huggingface dataset:
Impact of Meteorological Conditions on Abdominal Aortic Aneurysm Rupture
Authors: Schuld Jochen , Kollmar Otto , Schuld Simone , Schommer Kai , Richter Sven 
Published: July 2013

Objective: To examine the influence of local meteorological conditions on the onset of ruptured abdominal aortic aneurysms (AAA). Methods: A review of 6551 consecutive days with a total of 191 ruptured AAA was performed between January, 1994 and December, 2011. Days with and without ruptured AAA were compared considering local meteorological data. A systematic review of the literature was performed. Results: Atmospheric pressure, cloudiness, relative humidity, precipitation, and water vapor pressure were comparable at event and nonevent days. The 4-day variance of atmospheric pressure prior to event days was significantly higher compared to nonevent days. Maximal and average temperature and water vapor pressure were significant lower at event days. Binary regression analysis identified a higher 4-day variance in atmospheric pressure as an independent factor for ruptures. Conclusions: Further studies—collected at different geographic and climate areas—are necessary to prove that meteorological conditions may trigger the incidence of ruptured AAA.
True polyandry and pseudopolyandry: why does a monandrous fly remate?
Authors: Fisher David N , Doff Rowan J , Price Tom A R 
Published: July 2013

AbstractBackgroundThe rate of female remating can have important impacts on a species, from affecting conflict and cooperation within families, to population viability and gene flow. However, determining the level of polyandry in a species can be difficult, with information on the mating system of many species being based on a single experiment, or completely absent. Here we investigate the mating system of the fruit flyDrosophila subobscura. Reports from England, Spain and Canada suggestD. subobscurais entirely monandrous, with no females remating. However, work in Greece suggests that 23% of females remate. We examine the willingness of femaleD. subobscurato remate in the laboratory in a range of conditions, using flies from both Greece and England. We make a distinction between pseudopolyandry, where a female remates after an ineffective first mating that is incapable of fertilising her eggs, and true polyandry, where a female remates even though she has received suitable sperm from a previous mating.ResultsWe find a low rate of true polyandry by females (4%), with no difference between populations. The rate of true polyandry is affected by temperature, but not starvation. Pseudopolyandry is three times as common as true polyandry, and most females showing pseudopolyandry mated at their first opportunity after their first failed mating. However, despite the lack of differences in polyandry between the populations, we do find differences in the way males respond to exposure to other males prior to mating. In line with previous work, English flies responded to one or more rivals by increasing their copulation duration, a response previously thought to be driven by sperm competition. Greek males only show increased copulation duration when exposed to four or more rival males. This suggests that the response to rivals inD. subobscurais not related to sperm competition, because sperm competition is rare, and there is no correlation of response to rivals and mating system across the populations.ConclusionsThese results illustrate the difficulties in determining the mating system of a species, even one that is well known and an excellent laboratory species, with results being highly dependent on the conditions used to assay the behaviour, and the population used.
Economic analysis of complementary, alternative, and integrative medicine: considerations raised by an expert panel
Authors: Coulter Ian D , Herman Patricia M , Nataraj Shanthi 
Published: July 2013

AbstractBackgroundAn international panel of experts was convened to examine the challenges faced in conducting economic analyses of Complementary, Alternative and Integrative Medicine (CAIM).MethodsA one and a half-day panel of experts was convened in early 2011 to discuss what was needed to bring about robust economic analysis of CAIM. The goals of the expert panel were to review the current state of the science of economic evaluations in health, and to discuss the issues involved in applying these methods to CAIM, recognizing its unique characteristics. The panel proceedings were audiotaped and a thematic analysis was conducted independently by two researchers. The results were then discussed and differences resolved. This manuscript summarizes the discussions held by the panel members on each theme.ResultsThe panel identified seven major themes regarding economic evaluation that are particularly salient to determining the economics of CAIM: standardization (in order to compare CAIM with conventional therapies, the same basic economic evaluation methods and framework must be used); identifying the question being asked, the audience targeted for the results and whose perspective is being used (e.g., the patient perspective is especially relevant to CAIM because of the high level of self-referral and out-of-pocket payment); the analytic methods to be used (e.g., the importance of treatment description and fidelity); the outcomes to be measured (e.g., it is important to consider a broad range of outcomes, particularly for CAIM therapies, which often treat the whole person rather than a specific symptom or disease); costs (e.g., again because of treating the whole person, the impact of CAIM on overall healthcare costs, rather than only disease-specific costs, should be measured); implementation (e.g., highlighting studies where CAIM allows cost savings may help offset its image as an “add on” cost); and generalizability (e.g., proper reporting can enable study results to be useful beyond the study sample).ConclusionsThe business case for CAIM depends on economic analysis and standard methods for conducting such economic evaluations exist. The challenge for CAIM lies in appropriately applying these methods. The deliberations of this panel provide a list of factors to be considered in meeting that challenge.
Metabolic engineering of Bacillus subtilis for growth on overflow metabolites
Authors: Kabisch Johannes , Pratzka Isabel , Meyer Hanna , Albrecht Dirk , Lalk Michael , Ehrenreich Armin , Schweder Thomas 
Published: July 2013

Abstract

Background
The genome of the important industrial host Bacillus subtilis does not encode the glyoxylate shunt, which is necessary to utilize overflow metabolites, like acetate or acetoin, as carbon source. In this study, the operon encoding the isocitrate lyase (aceB) and malate synthase (aceA) from Bacillus licheniformis was transferred into the chromosome of B. subtilis. The resulting strain was examined in respect to growth characteristics and qualities as an expression host.

Results
Our results show that the modified B. subtilis strain is able to grow on the C2 compound acetate. A combined transcript, protein and metabolite analysis indicated a functional expression of the native glyoxylate shunt of B. lichenifomis in B. subtilis. This metabolically engineered strain revealed better growth behavior and an improved activity of an acetoin-controlled expression system.

Conclusions
The glyoxylate shunt of B. licheniformis can be functionally transferred to B. subtilis. This novel strain offers improved properties for industrial applications, such as growth on additional carbon sources and a greater robustness towards excess glucose feeding.
Hospital admissions for vitamin D related conditions and subsequent immune-mediated disease: record-linkage studies
Authors: Ramagopalan Sreeram V , Goldacre Raph , Disanto Giulio , Giovannoni Gavin , Goldacre Michael J 
Published: July 2013

Abstract

Background
Previous studies have suggested that there may be an association between vitamin D deficiency and the risk of developing immune-mediated diseases.

Methods
We analyzed a database of linked statistical records of hospital admissions and death registrations for the whole of England (from 1999 to 2011). Rate ratios for immune-mediated disease were determined, comparing vitamin D deficient cohorts (individuals admitted for vitamin D deficiency or markers of vitamin D deficiency) with comparison cohorts.

Results
After hospital admission for either vitamin D deficiency, osteomalacia or rickets, there were significantly elevated rates of Addison’s disease, ankylosing spondylitis, autoimmune hemolytic anemia, chronic active hepatitis, celiac disease, Crohn’s disease, diabetes mellitus, pemphigoid, pernicious anemia, primary biliary cirrhosis, rheumatoid arthritis, Sjogren’s syndrome, systemic lupus erythematosus, thyrotoxicosis, and significantly reduced risks for asthma and myxoedema.

Conclusions
This study shows that patients with vitamin D deficiency may have an increased risk of developing some immune-mediated diseases, although we cannot rule out reverse causality or confounding. Further study of these associations is warranted and these data may aid further public health studies.
Diel leaf growth of soybean: a novel method to analyze two-dimensional leaf expansion in high temporal resolution based on a marker tracking approach (Martrack Leaf)
Authors: Mielewczik Michael , Friedli Michael , Kirchgessner Norbert , Walter Achim 
Published: July 2013

Abstract

Background
We present a novel method for quantitative analysis of dicot leaf expansion at high temporal resolution. Image sequences of growing leaves were assessed using a marker tracking algorithm. An important feature of the method is the attachment of dark beads that serve as artificial landmarks to the leaf margin. The beads are mechanically constricted to the focal plane of a camera. Leaf expansion is approximated by the increase in area of the polygon defined by the centers of mass of the beads surrounding the leaf. Fluctuating illumination conditions often pose serious problems for tracking natural structures of a leaf; this problem is circumvented here by the use of the beads.

Results
The new method has been used to assess leaf growth in environmental situations with different illumination conditions that are typical in agricultural and biological experiments: Constant illumination via fluorescent light tubes in a climate chamber, a mix of natural and artificial illumination in a greenhouse and natural illumination of the situation on typical summer days in the field. Typical features of diel (24h) soybean leaf growth patterns were revealed in all three conditions, thereby demonstrating the general applicability of the method. Algorithms are provided to the entire community interested in using such approaches.

Conclusions
The implementation Martrack Leaf presented here is a robust method to investigate diel leaf growth rhythms both under natural and artificial illumination conditions. It will be beneficial for the further elucidation of genotype x environment x management interactions affecting leaf growth processes.
Study on the heavy metal bioconcentrations of the Shadegan international wetland mosquitofish, Gambusia affinis, by inductively coupled plasma technique
Authors: Nasirian Hassan , Mahvi Amir Hossein , Hosseini Mostafa , Vazirianzadeh Babak , Sadeghi Sayyed Mohammad Taghi , Nazmara Shahrokh 
Published: July 2013

Abstract
The purpose of this study was to evaluate the levels of heavy metal bioconcentration of the mosquitofish (Gambusia affinis) in Shadegan international wetland. Sampling including the water, waterbed sediment and mosquitofish was carried out from the selected sampling sites during October and November 2011, and analyzed by the ICP-OES. Results show that the water has poor qualitative condition, according to EPA and WHO water quality standards. The level of the water Cr in the selected sites in both months and the levels of Fe, Mn and Zn during October in the SW1 site were higher than the instrumental detection limits indicating that the water was contaminated with these metals in the mentioned sites and months. The levels of the waterbed sediment As, Co, Cr, Cu, Fe, Mn, Pb and Zn, and mosquitofish Cr, Cu, Fe, Mn, Zn, Co and Cd were much higher than the instrumental detection limits, indicating that the waterbed sediment and mosquitofish were contaminated with them during October and November in the selected sites. Statistical assessments reveal that there is a significant difference between the mentioned contaminated water, waterbed sediment and mosquitofish heavy metals (all P-values < 0.05). In overall, it is considered that the contaminated heavy metals can be accumulated in the waterbed sediment and bioconcentrated in the wildlife tissues, then finally can be entered in the marine food chains and biomagnified there after long periods. In conclusion, this paper confirmed that the G. affinis can be used as a bioindicator of heavy metal pollution in marine ecosystems such as wetlands.
Effect of pH on in vitro biocompatibility of orthodontic miniscrew implants
Authors: Galeotti Angela , Uomo Roberto , Spagnuolo Gianrico , Paduano Sergio , Cimino Roberta , Valletta Rosa , D’Antò Vincenzo 
Published: July 2013

Abstract

Background
Although the clinical use of miniscrews has been investigated on a large scale, little is known about their biocompatibility. Since low pH can affect corrosion resistance, the aim of this study was to evaluate the cytotoxic effect of orthodontic miniscrews in different pH conditions.

Methods
Four orthodontic miniscrews of stainless steel and grade IV and grade V titanium were immersed in a pH 7 and pH 4 saline solution for 1, 7, 14, 21, 28, and 84 days. Human osteogenic sarcoma cells (U2OS), permanent human keratinocytes (HaCat), and primary human gingival fibroblasts (HGF) were exposed to eluates, and the mitochondrial dehydrogenase activity was measured after 24 h to assess the cytoxicity. The results were analyzed using the Mann-Whitney U test (P < 0.05).

Results
When exposed to pH 7-conditioned eluates, the cell lines showed an even greater viability than untreated cells. On the contrary, the results revealed a statistically significant decrease in U2OS, HaCat, and HGF viability after exposure to eluates obtained at pH 4. Among the cell lines tested, HGF showed the most significant decrease of mitochondrial activity. Interestingly, grade V titanium miniscrews caused highest toxic effects when immersed at pH 4.

Conclusions
The results suggested that at pH 7, all the miniscrews are biocompatible while the eluates obtained at pH 4 showed significant cytotoxicity response. Moreover, different cell lines can produce different responses to miniscrew eluates.
Complex Partnerships: Self-authorship and Provocative Academic-Advising Practices
Authors: Pizzolato Jane E. 
Published: July 2013

Self-authorship is an additional orientation to traditional college student, epistemological, development theories. Facilitation of self-authorship, via academic advising, may help students meet the desired outcomes outlined by the Council for the Advancement of Standards in Higher Education and integrate these abilities into their knowing and decision-making processes. Through investigation of 132 student narratives about advising and selection of academic majors, I examined advising practices that are consistent with Baxter Magolda's (2001) learning partnerships model for self-authorship development. Findings suggest that student decision-making and self-authoring abilities were enhanced by advising sessions that focused explicitly on goal reflection and associated volitional planning. Students benefited from advising in which nonacademic factors were addressed. Implications for practice are discussed.Relative emphasis: * theory, research, practice
Informing, Apprising, Guiding, and Mentoring: Constructs Underlying Upperclassmen Expectations for Advising
Authors: Propp Kathleen M. , Rhodes Steven C. 
Published: July 2013

We examined the mental constructs that guide students' expectations for advisor behavior. Through exploratory factor analysis, we identified four factors that underlie students' expectations. Interpretive analysis revealed underlying dimensions reflected by the factors of advisor role and enactment level. Specifically, the first dimension reflected that advisors may be expected to perform as academic and developmental advisor. The second dimension showed a refinement of factors such that each role could be enacted in a generalized or individualized manner. Based on the identified role and enactment level, four constructs were posited to guide students' expectations for advisors: informing, mentoring, guiding, and apprising. Findings suggest that students prefer that advisors display the informing, guiding, and apprising behaviors significantly more than mentoring behaviors.Relative emphasis: * theory, research, practice
Microskills: Advisor Behaviors that Improve Communication with Advisees
Authors: Barnett Susan , Roach Scott , Smith Martha 
Published: July 2013

In writing this article, we wanted to provide advisors practical means with which to optimize their relationships with advisees. First, we describe behavioral microskills that can be used by advisors to enhance advising sessions. Attending behaviors (eye contact, vocal cadence and tone, verbal tracking, body language) and listening skills (asking questions, observing, guiding discussion, reflecting feelings) are two core microskills that advisors can practice. Use of these microskills has been shown to improve session effectiveness and strengthen the advisee-advisor relationship. Second, we present the results of a small-scale experiment that suggests that even modest training in microskills can benefit advising sessions.
Relative emphasis: * practice, theory, research
Helping First-Year Students Make the Transition to College through Advisor-Researcher Collaboration
Authors: Smith Joshua S. , Dai David Yun , Szelest Bruce P. 
Published: July 2013

Most information advisors receive about first-year advisees pertains to students' academic achievement and high school courses. To assist students effectively with the transition to college, advisors need additional information. We describe a collaborative process used to develop a prematriculation, academic motivation instrument that provides important information for academic advisors and the whole institution. The collaborators included academic advisors, institutional research personnel, and a faculty member from the School of Education, all working together to create the instrument, examine its psychometric properties, and make decisions about how to use the data. The instrument shows promise as predictor of academic success in the early college years and could potentially assist advisors in identifying first-year students at risk for academic difficulties.Relative emphasis: * research, theory, practice
Institutional Vision and Academic Advising
Authors: Abelman Robert , Molina Anthony D. 
Published: July 2013

Quality academic advising in higher education is the product of a multitude of elements not the least of which is institutional vision. By recognizing and embracing an institution's concept of its capabilities and the kinds of educated human beings it is attempting to cultivate, advisors gain an invaluable apparatus to guide the provision of effective educational planning to students. In a case study survey, we assessed whether and how institutional vision can be transformed into action as both vision-driven initiatives and more incidental activities reflective of an institution's vision statement.
Relative emphasis: theory, research, practice
A Model of First-Generation Latino/a College Students' Approach to Seeking Academic Information
Authors: Torres Vasti , Reiser Al , LePeau Lucy , Davis Laura , Ruder Jeffrey 
Published: July 2013

Using grounded theory methodology, we examined the experiences of first-generation Latino/a college students. Themes emerged in students' interactions with and perceptions of peers, advisors, and faculty members. A model derived from the data was developed to describe the unique ways first-generation Latino/a students sought information relating to classes, transferring, financial aid, and careers. We conclude the article with six recommendations and a discussion of how advisors might work with the Latino/a student population.
Relative emphasis: research, practice, theory
Effects of Study Abroad Participation on Student Graduation Rates: A Study of Three Incoming Freshman Cohorts at the University of Minnesota, Twin Cities
Authors: Malmgren Jodi , Galvin James 
Published: July 2013

Study abroad participation is increasing. National and institutional resources are being devoted to internationalization. Assessments stress the importance of learning outcomes among study abroad participants. The confluence of these influences led the University of Minnesota, Twin Cities, to gather data on graduation rates of study abroad participants and compare them to those of non-participants. We analyzed the data and the patterns that emerge among subsets of the students by college of enrollment and for students of color. The data suggest that study abroad participation may not harm graduation rates and that it is highly correlated with high graduation rates among under-prepared and at-risk undergraduates as well as students of color. We highlight the implications of the study for academic advisors.Relative Emphasis: practice, research, theory
A Reliable Sounding Board: Parent Involvement in Students' Academic and Career Decision Making
Authors: Simmons Andrew N. 
Published: July 2013

With concern over parental involvement in students' academic lives on the rise, research is needed to provide guidance for advisors and parents. In this article, student-parent interactions about academic and career decisions are examined. Data come from the Brown University Office of Institutional Research and semi-structured interviews with students at Brown University. In the interviews, students reported that they rely on their parents for general support and as a source of advice about academic and career decisions. These findings are consistent with institutional data and prior research. Analysis of the findings draws on attachment theory and on Baxter Magolda's self-authorship model of adult development. Implications for advising practice as well as suggestions for fostering constructive parent involvement are addressed.Relative Emphasis: research, theory, practice
A National Survey of Academic-Advisor Job Satisfaction
Authors: Donnelly Ned 
Published: July 2013

Presented analyses regarding academic-advisor job satisfaction are based on data from a survey administered to NACADA members in July 2005. Advisor job satisfaction in various environments and differences in satisfaction across personal demographics were studied. Academic advisors report high satisfaction overall as well as with student and supervision aspects of the job. Advisors are most satisfied with work variety, job benefits, and teamwork, and they are least satisfied with salary, recognition, and support for career opportunity. Environment variables most strongly related to job satisfaction were variety, empowerment, and teamwork. Advisors were least happy with the environment element of salary. Of the advisor variables, years of experience and advising style showed the strongest relationship with satisfaction.
Relative Emphasis: practice, research, theory