bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prevalence of low bone mass among adolescents with nontransfusion‐dependent hemoglobin E/β‐thalassemia and its relationship with anemia severity
Authors: Nakavachara Pairunyar , Petchkul Jaturat , Jeerawongpanich Krittha , Kiattisakthavee Pornpimol , Manpayak Teerarat , Netsakulnee Parichat , Chaichanwattanakul Katharee , Pooliam Julaporn , Srichairatanakool Somdet , Viprakasit Vip 
Published: August 2017

AbstractBackgroundLow bone mass is common among adolescents with transfusion‐dependent β‐thalassemia despite adequate transfusion and iron chelation. However, there are few reports regarding bone mineral density (BMD) among adolescents with nontransfusion‐dependent thalassemia (NTDT). Indeed, only BMD data in patients with nontransfusion‐dependent (NTD) β‐thalassemia intermedia have been reported. No previous study has investigated BMD among adolescents with NTD hemoglobin (Hb) E/β‐thalassemia.ObjectiveTo determine the prevalence of low bone mass among adolescents with NTD Hb E/β‐thalassemia and factors relating to low bone mass.MethodsWe investigated BMD of lumbar spine (L2–L4; BMDLS) and total body (BMDTB), as measured by dual‐energy X‐ray absorptiometry, in 22 adolescents (aged 13.2–20 years) with NTD Hb E/β‐thalassemia.ResultsLow bone mass was found to be 18.2% and 22.7% at the lumbar spine (BMDLS Z‐score adjusted for bone age and height age) and 13.6% and 9.1% at the total body (BMDTB Z‐score adjusted for bone age and height age). Patients with mean Hb level <8 g/dl were more likely to have low bone mass (BMDLS and BMDTB Z‐scores adjusted for bone age) compared to those with Hb level ≥ 8 g/dl. Mean Hb level correlated with BMDLS and BMDTB Z‐scores adjusted for bone age.ConclusionWe demonstrated that a low Hb level was associated with low bone mass among adolescents with NTD Hb E/β‐thalassemia. A significant proportion of low bone mass among these patients highlights the importance of appropriate management, including red cell transfusion, vitamin D and calcium supplementation for improved long‐term bone health.
Synthesis, characterization, and biological activity of Schiff bases metal complexes
Authors: Al Zoubi Wail , Al‐Hamdani Abbas Ali Salih , Ahmed Susan Duraid , Ko Young Gun 
Published: August 2017

AbstractThe new Schiff base 1‐[(2‐{1‐[(dicyclohexylamino)‐methyl]‐1H‐indol‐3‐yl}‐ethylimino)‐methyl]naphthalen‐2‐ol (HL) was prepared from 1‐{[2‐(1H‐Indol‐3‐yl)‐ethylimino] methyl}‐naphthalen‐2‐ol and dicyclohexyl amine. From this Schiff base, monomeric complexes [M (L)n (H2O)2 Cl2] with M = Cr, Fe, Mn, Cd, and Hg were synthesized and characterized based on elemental analysis (EA), FT‐IR, mass(MS), UV‐visible, thermal analysis, magnetic moment, and molar conductance. The results showed that the geometrical structural were octahedral geometries for the Cr(III) and Fe(III) complexes, square planer for Pd(II) complex, and tetrahedral for Mn(II), Cd(II), and Hg(II) complexes. Kinetic parameters such as ΔE*,ΔH*, ΔG*, and K of the thermal decomposition stages were calculated from the TGA curves using Coats‐Redfern method. Additionally, density functional theory (DFT) was applied for calculations of both electronic structure and spectroscopic properties of synthesized Schiff base and its complexes. The analysis of electrostatic potential (EPS) maps correlates well with the computed energies providing on the dominant electrostatic nature of N‐H‐‐‐O interactions. The biological activities had been tested in vitro against Staphylococcus aureus, Pseudomonas aeruginosa, as well fungi like Penicillium expansum, Fusarium graminearum, Macrophomina phasealina, and Candida albicans bacteria in order to assess their antimicrobial potential.
Determination of antioxidant activity of surface‐treated PET films coated with rosemary and clove extracts
Authors: Farghal Hebatullah H. , Karabagias Ioannis , El Sayed Mayyada , Kontominas Michael G. 
Published: August 2017

Commercial PET films were surface treated and subsequently coated with either rosemary (RME) or clove (CE) extracts. Surface treatments involved (1) corona treatment, (2) chemical modification, and (3) plasma treatment. Radical scavenging activity (RSA) of both pure plant extracts and coated film extracts were determined using the 1,1‐diphenyl‐2‐picrylhydrazyl (DPPH) method. RME‐coated films showed a % RSA of 25.6%, 22.4%, and 24.1% for plasma, chemical modification, and corona treatment, respectively, at an extract concentration of 1402 ppm, respectively, while pure RME showed a %RSA of 16.0%. Respective %RSA values for CE were 25.0% for plasma, 25.2% for chemically modified, and 25.2% for corona‐treated films at 1402 ppm, while pure CE showed a %RSA of 47.6%. Thiobarbituric acid (TBA) test, performed on ground fish muscle wrapped in all types of employed films, showed a remarkable decrease in the degree of fish oxidation ranging between 50.0 and 80.0% after 6 days of storage. Contact angle measurements confirmed that surface chemically modified films had the highest adhesion strength followed by corona and plasma‐treated films. Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and X‐ray photoelectron spectroscopy (XPS) data also supported contact angle measurements. Finally, the oxygen permeability of surface‐treated films did not differ from untreated films indicating that surface treatment did not affect film barrier properties.
Influence of surgical gloves on haptic perception thresholds
Authors: Hatzfeld Christian , Dorsch Sarah , Neupert Carsten , Kupnik Mario 
Published: August 2017

AbstractBackgroundImpairment of haptic perception by surgical gloves could reduce requirements on haptic systems for surgery. While grip forces and manipulation capabilities were not impaired in previous studies, no data is available for perception thresholds.MethodsAbsolute and differential thresholds (20 dB above threshold) of 24 subjects were measured for frequencies of 25 and 250 Hz with a Ψ‐method. Effects of wearing a surgical glove, moisture on the contact surface and subject's experience with gloves were incorporated in a full‐factorial experimental design.ResultsAbsolute thresholds of 12.8 dB and −29.6 dB (means for 25 and 250 Hz, respectively) and differential thresholds of −12.6 dB and −9.5 dB agree with previous studies. A relevant effect of the frequency on absolute thresholds was found. Comparisons of glove‐ and no‐glove‐conditions did not reveal a significant mean difference.ConclusionsWearing a single surgical glove does not affect absolute and differential haptic perception thresholds.
An enhanced authentication with key agreement scheme for satellite communication systems
Authors: Qi Mingping , Chen Jianhua 
Published: August 2017

SummaryTo ensure secure communication in satellite communication systems, recently, Zhang et al presented an authentication with key agreement scheme and claimed that their scheme satisfies various security requirements. However, this paper demonstrates that Zhang et al's scheme is insecure against the stolen‐verifier attack and the denial of service attack. Furthermore, to authenticate a user, Zhang et al's scheme requires large computational load to exhaustively retrieve the user's identity and password from the account database according to a temporary identity and then update the temporary identity in the database. To overcome the weaknesses existing in Zhang et al's scheme, we proposed an enhanced authentication with key agreement scheme for satellite communication systems. The analyses of our proposed scheme show that the proposed scheme possesses perfect security properties and eliminates the weaknesses of Zhang et al's scheme well. Therefore, from the authors' viewpoints, the proposed scheme is more suitable for the authentication scheme of mobile satellite communication systems.
Five Steps Toward Successful Culturally Relevant Text Selection and Integration
Authors: Sharma Sue Ann , Christ Tanya 
Published: August 2017

AbstractGiven the increasing diversity in U.S. schools and the impact of texts that reflect students’ identities and experiences in the world, it has become imperative for teachers to be able to effectively integrate culturally relevant texts. In this article, the authors show how to do this using five steps to guide the process. First, teachers need to recognize the need for culturally responsive instruction. Second, they need to know more about their students’ lives; the authors present three methods for discovering this. Third, teachers need ways to search for culturally relevant texts, such as using multicultural booklists and Google searches to learn more about authors. Fourth, the authors provide a construct for selecting a text that will likely be culturally relevant for a specific student. Fifth, the authors provide an example of critical questions and personal response opportunities for using these texts within instruction.
From continuum mechanics to SPH particle systems and back: Systematic derivation and convergence
Authors: Evers Joep H.M. , Zisis Iason A. , van der Linden Bas J. , Duong Manh Hong 
Published: August 2017

AbstractIn this paper, we derive from the principle of least action the equation of motion for a continuous medium with regularized density field in the context of measures. The eventual equation of motion depends on the order in which regularization and the principle of least action are applied. We obtain two different equations, whose discrete counterparts coincide with the scheme used traditionally in the Smoothed Particle Hydrodynamics (SPH) numerical method [27], and with the equation treated by Di Lisio et al. in [9], respectively. Additionally, we prove the convergence in the Wasserstein distance of the corresponding measure‐valued evolutions, moreover providing the order of convergence of the SPH method. The convergence holds for a general class of force fields, including external and internal conservative forces, friction and non‐local interactions. The proof of convergence is illustrated numerically by means of one and two‐dimensional examples.
Near-wall statistics of a turbulent pipe flow at shear Reynolds numbers up to 40 000
Authors: Willert Christian E. , Soria Julio , Stanislas Michel , Klinner Joachim , Amili Omid , Eisfelder Michael , Cuvier Christophe , Bellani Gabriele , Fiorini Tommaso , Talamelli Alessandro 
Published: August 2017

This paper reports on near-wall two-component–two-dimensional (2C–2D) particle image velocimetry (PIV) measurements of a turbulent pipe flow at shear Reynolds numbers up to $Re_{\unicode[STIX]{x1D70F}}=40\,000$ acquired in the CICLoPE facility of the University of Bologna. The 111.5 m long pipe of 900 mm diameter offers a well-established turbulent flow with viscous length scales ranging from $85~\unicode[STIX]{x03BC}\text{m}$ at $Re_{\unicode[STIX]{x1D70F}}=5000$ down to $11~\unicode[STIX]{x03BC}\text{m}$ at $Re_{\unicode[STIX]{x1D70F}}=40\,000$. These length scales can be resolved with a high-speed PIV camera at image magnification near unity. Statistically converged velocity profiles were determined using multiple sequences of up to 70 000 PIV recordings acquired at sampling rates of 100 Hz up to 10 kHz. Analysis of the velocity statistics shows a well-resolved inner peak of the streamwise velocity fluctuations that grows with increasing Reynolds number and an outer peak that develops and moves away from the inner peak with increasing Reynolds number.
The influence of organic matter content and media compaction on the dispersal of entomopathogenic nematodes with different foraging strategies
Authors: KAPRANAS APOSTOLOS , MAHER ABIGAIL M. D. , GRIFFIN CHRISTINE T. 
Published: August 2017

SUMMARYIn laboratory experiments, we investigated how media with varying ratio of peat:sand and two levels of compaction influence dispersal success of entomopathogenic nematode (EPN) species with different foraging strategies:Steinernema carpocapsae(ambusher),Heterorhabditis downesi(cruiser) andSteinernema feltiae(intermediate). Success was measured by the numbers of nematodes moving through a 4 cm column and invading a wax moth larva. We found that both compaction and increasing peat content generally decreased EPN infective juvenile (IJ) success for all three species. Of the three species,H. downesiwas the least affected by peat content, andS. carpocapsaewas the most adversely influenced by compaction. In addition, sex ratios of the invading IJs of the twoSteinernemaspecies were differentially influenced by peat content, and in the case ofS. feltiae, sex ratio was also affected by compaction. This indicates that dispersal of male and female IJs is differentially affected by soil parameters and that this differentiation is species-specific. In conclusion, our study shows that organic matter: sand ratio and soil compaction have a marked influence on EPN foraging behaviour with implications for harnessing them as biological pest control agents.
Psychosis as a risk factor for suicidal thoughts and behaviors: a meta-analysis of longitudinal studies
Authors: Huang X. , Fox K. R. , Ribeiro J. D. , Franklin J. C. 
Published: August 2017

BackgroundResearch has long noted higher prevalence rates of suicidal thoughts and behaviors among individuals with psychotic symptoms. Major theories have proposed several explanations to account for this association. Given the differences in the literature regarding the operationalization of psychosis and sample characteristics, a quantitative review is needed to determine to what extent and how psychosis confers risk for suicidality.MethodsWe searched PsycInfo, PubMed, and GoogleScholar for studies published before 1 January 2016. To be included in the analysis, studies must have used at least one psychosis-related factor to longitudinally predict suicide ideation, attempt, or death. The initial search yielded 2541 studies. Fifty studies were retained for analysis, yielding 128 statistical tests.ResultsSuicide death was the most commonly studied outcome (43.0%), followed by attempt (39.1%) and ideation (18.0%). The median follow-up length was 7.5 years. Overall, psychosis significantly conferred risk across three outcomes, with weighted mean ORs of 1.70 (1.39–2.08) for ideation, 1.36 (1.25–1.48) for attempt, and 1.40 (1.14–1.72) for death. Detailed analyses indicated that positive symptoms consistently conferred risk across outcomes; negative symptoms were not significantly associated with ideation, and were protective against death. Some small moderator effects were detected for sample characteristics.ConclusionsPsychosis is a significant risk factor for suicide ideation, attempt, and death. The finding that positive symptoms increased suicide risk and negative symptoms seemed to decrease risk sheds light on the potential mechanisms for the association between psychosis and suicidality. We note several limitations of the literature and offer suggestions for future directions.
The prevalence of suicidal thoughts and behaviours among college students: a meta-analysis
Authors: Mortier P. , Cuijpers P. , Kiekens G. , Auerbach R. P. , Demyttenaere K. , Green J. G. , Kessler R. C. , Nock M. K. , Bruffaerts R. 
Published: August 2017

BackgroundAdolescence and young adulthood carry risk for suicidal thoughts and behaviours (STB). An increasing subpopulation of young people consists of college students. STB prevalence estimates among college students vary widely, precluding a validated point of reference. In addition, little is known on predictors for between-study heterogeneity in STB prevalence.MethodsA systematic literature search identified 36 college student samples that were assessed for STB outcomes, representing a total of 634 662 students [median sample size = 2082 (IQR 353–5200); median response rate = 74% (IQR 37–89%)]. We used random-effects meta-analyses to obtain pooled STB prevalence estimates, and multivariate meta-regression models to identify predictors of between-study heterogeneity.ResultsPooled prevalence estimates of lifetime suicidal ideation, plans, and attempts were 22.3% [95% confidence interval (CI) 19.5–25.3%], 6.1% (95% CI 4.8–7.7%), and 3.2% (95% CI 2.2–4.5%), respectively. For 12-month prevalence, this was 10.6% (95% CI 9.1–12.3%), 3.0% (95% CI 2.1–4.0%), and 1.2% (95% CI 0.8–1.6%), respectively. Measures of heterogeneity were high for all outcomes (I2 = 93.2–99.9%), indicating substantial between-study heterogeneity not due to sampling error. Pooled estimates were generally higher for females, as compared with males (risk ratios in the range 1.12–1.67). Higher STB estimates were also found in samples with lower response rates, when using broad definitions of suicidality, and in samples from Asia.ConclusionsBased on the currently available evidence, STB seem to be common among college students. Future studies should: (1) incorporate refusal conversion strategies to obtain adequate response rates, and (2) use more fine-grained measures to assess suicidal ideation.
Optimal fuzzy scheduling and sequencing of multiple-period operating room
Authors: Al-Refaie Abbas , Judeh Mays , Li Ming-Hsien 
Published: August 2017

AbstractLittle research has considered fuzzy scheduling and sequencing problem in operating rooms. Multiple-period fuzzy scheduling and sequencing of patients in operating rooms optimization models are proposed in this research taking into consideration patient‘s preference. The objective of the scheduling optimization model is obtaining minimal undertime and overtime and maximum patients' satisfaction about the assigned date. The objective of sequencing the optimization model is both to minimize overtime and to maximize patients' satisfaction about the assigned time. A real-life case study from a hospital that offers comprehensive surgical procedures for all surgical specialties is considered for illustration. Research results showed that the proposed models efficiently scheduled and sequenced patients while considering their preferences and hospitals operating costs. In conclusion, the proposed optimization models may result in improving patient satisfaction, utilizing hospital's resources efficiently, and providing assistance to decision makers and planners in solving effectively fuzzy scheduling and sequencing problems of operating rooms.
Dopamine receptor D2 (DRD2), dopamine transporter solute carrier family C6, member 4 (SLC6A3), and catechol-O-methyltransferase (COMT) genes as moderators of the relation between maternal history of maltreatment and infant emotion regulation
Authors: Villani Vanessa , Ludmer Jaclyn , Gonzalez Andrea , Levitan Robert , Kennedy James , Masellis Mario , Basile Vincenzo S. , Wekerle Christine , Atkinson Leslie 
Published: August 2017

AbstractAlthough infants less than 18 months old are capable of engaging in self-regulatory behavior (e.g., avoidance, withdrawal, and orienting to other aspects of their environment), the use of self-regulatory strategies at this age (as opposed to relying on caregivers) is associated with elevated behavioral and physiological distress. This study investigated infant dopamine-related genotypes (dopamine receptor D2 [DRD2], dopamine transporter solute carrier family C6, member 4 [SLC6A3], and catechol-O-methyltransferase [COMT]) as they interact with maternal self-reported history of maltreatment to predict observed infant independent emotion regulation behavior. A community sample (N= 193) of mother–infant dyads participated in a toy frustration challenge at infant age 15 months, and infant emotion regulation behavior was coded. Buccal cells were collected for genotyping. Maternal maltreatment history significantly interacted with infantSLC6A3andCOMTgenotypes, such that infants with more 10-repeat and valine alleles ofSLC6A3andCOMT,respectively, relative to infants with fewer or no 10-repeat and valine alleles, utilized more independent (i.e., maladaptive) regulatory behavior if mother reported a more extensive maltreatment history, as opposed to less. The findings indicate that child genetic factors moderate the intergenerational impact of maternal maltreatment history. The results are discussed in terms of potential mechanism of Gene × Environment interaction.
Evaluation of the efficacy, safety and acceptability of a fish protein isolate in the nutrition of children under 36 months of age
Authors: Ochoa Theresa J , Baiocchi Nelly , Valdiviezo Gladys , Bullon Vanessa , Campos Miguel , Llanos-Cuentas Alejandro 
Published: August 2017

AbstractObjectiveTo determine the effect of a fish protein isolate (FPi), administered over 6 months, on the growth of children aged 6–36 months, measured by Z-scores of height-for-age (HAZ) and weight-for-height (WHZ), compared with the standard meal without FPi; and to determine the safety and acceptability of FPi daily consumption.DesignCluster-randomized community-based controlled trial. For 6 months, the centres received either FPi replacing 50 % of total proteins in the diet or standard protein. HAZ and WHZ were used to determine the effect on growth. Acceptability was determined by daily consumption, measured by weighing the servings before and after consumption.SettingDay care centres and community nutritional centres in northern Lima, Peru.SubjectsChildren (n 441) aged 6–36 months.ResultsFour centres were randomized to the intervention with FPi, five centres were randomized to the standard control diet. More than 36 900 meals were prepared and administered in a supervised manner. Both groups received the same amounts of energy and proteins daily (proteins about 12–15 % of total energy). Growth of children who received the FPi diet was similar to that of children with the standard diet. Consumption was similar in the FPi and control groups (70 v. 80 % of amount offered, respectively). The protein was safe and well tolerated. No adverse events were reported. However, the cost of the intervention with FPi was 20–40 % lower v. the standard diet with animal protein derived from beef, chicken, eggs or liver.ConclusionsThe FPi was well accepted and there was no significant difference in growth between both groups. FPi is a potential source of animal protein at lower cost.
Is Aboriginal nutrition a priority for local government? A policy analysis
Authors: Helson Catherine , Walker Ruth , Palermo Claire , Rounsefell Kim , Aron Yudit , MacDonald Catherine , Atkinson Petah , Browne Jennifer 
Published: August 2017

AbstractObjectiveThe present study aimed to explore how Australian local governments prioritise the health and well-being of Aboriginal populations and the extent to which nutrition is addressed by local government health policy.DesignIn the state of Victoria, Australia, all seventy-nine local governments’ public health policy documents were retrieved. Inclusion of Aboriginal health and nutrition in policy documents was analysed using quantitative content analysis. Representation of Aboriginal nutrition ‘problems’ and ‘solutions’ was examined using qualitative framing analysis. The socio-ecological framework was used to classify the types of Aboriginal nutrition issues and strategies within policy documents.SettingVictoria, Australia.SubjectsLocal governments’ public health policy documents (n79).ResultsA small proportion (14 %,n11) of local governments addressed Aboriginal health and well-being in terms of nutrition. Where strategies aimed at nutrition existed, they mostly focused on individual factors rather than the broader macroenvironment.ConclusionsA limited number of Victorian local governments address nutrition as a health issue for their Aboriginal populations in policy documents. Nutrition needs to be addressed as a community and social responsibility rather than merely an individual ‘behaviour’. Partnerships are required to ensure Aboriginal people lead government policy development.