bluuebunny/crossref_metadata_2025 huggingface dataset:
Water-soluble inorganic ions in urban aerosols
of the continental part of Balkans (Belgrade) during the summer – autumn (2008)
Authors: Mihajlidi-Zelić Aleksandra , Đorđević Dragana , Relić Dubravka , Tošić Ivana , Ignjatović Ljubiša , Stortini Maria A. , Gambaro Andrea
Published: November 2014

Size-segregated aerosol samples were collected using six stages High Volume Cascade Impactor. Aerosol mass and water soluble ions concentrations were determined. The Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model was used to study the origin of air masses arriving to Belgrade in the investigated period. The obtained results of aerosol mass and water-soluble ion concentrations have been divided into six sub-data sets based on air mass categories. The highest average mass concentration of the fine mode (Dp ≤ 0.49 μm) was found for air masses coming to Belgrade from the southeast and northwest directions, and of the coarse mode (3.0 < Dp ≤7.2 μm) for air masses arriving from the northwest direction. The highest concentrations of SO4
2– were found in the fine particles transported to the investigated area by air masses from southeast direction. The analysis of contribution of marine aerosol components (Na+ and Cl-), the Correlation and Cluster Analysis indicated the influence of marine aerosol on urban aerosol of the central Balkans coming from the Western Mediterranean and northern direction. NH4
+ and SO4
2- and K+ dominated in the fine mode for all air mass categories. PCA demonstrated the dominant impact of secondary aerosol formation processes on urban aerosols.
Crystallographic and structural characterization of heterometallic platinum compounds
Part VII. Heterohepta- and heterooctanuclear clusters
Authors: Melnik Milan , Mikuš Peter , Holloway Clive E.
Published: November 2014

This review classifies and analyzes over fifty heterohepta- and heterooctanuclear platinum clusters. There are eight types of metal combinations in heteroheptanuclear: Pt6M, Pt5M2, Pt4M3, Pt3M4, Pt2M5, PtM6, Pt3Hg2Ru2 and Pt2Os3Fe2. The seven metal atoms are in a wide variety of arrangements, with the most common being one in which the central M atom (mostly M(I)) is sandwiched by two M3 triangles. Another arrangement often found is an octahedron of M6 atoms asymmetrically capped by an M atom. The shortest Pt-M bond distances (non-transition and transition) are 2.326(1) Å (M = Ga) and 2.537(6) Å (M = Fe). The shortest Pt-Pt bond distance is 2.576(2) Å.

In heterooctanuclear platinum clusters there are eight types of metal combinations: Pt6M2, Pt4M4, Pt3Ru5, Pt2M6, PtM7, Pt2W4Ni2, PtAu6Hg and PtAu5Hg2. From a structural point of view, the clusters are complex with bicapped octahedrons of eight metal atoms prevailing. The shortest Pt-M bond distances (non-transition and transition) are 2.651(3) Å (M = Hg) and 2.624(1) Å (M = Os). The shortest Pt-Pt bond distance is 2.622(1) Å. These values are somewhat longer than those in the heteroheptanuclear clusters. Several relationships between the structural parameters were found, and are discussed and compared with the smaller heterometallic platinum clusters
The Long Shadow of Parental Political Socialization on the Development of Political Orientations
Authors: Dinas Elias
Published: November 2014

According to scholarly wisdom, family socialization accounts for the formation but not the further development of political norms and practices. Thus, although it yields high levels of partisan similarity between parents and children, its influence diminishes as the offspring accumulate experience with politics. This study is an attempt to qualify this view, suggesting that parental legacy is enduring and can help us understand key moments in individual’s political trajectories. In so doing, parental socialization operates both as a channel of continuity and a channel of attitudinal change. Examples from different cohorts and periods illustrate the nuanced role of parental politicization on the formation of offspring’s political outlook.
Baby Boomers
Authors: Delli Carpini Michael X.
Published: November 2014

Born between 1946 and 1964, “baby boomers” represent the largest 20-year age cohort in US history and still account for over 30% of the adult population. Drawing on over half a century of survey data from the American National Election Studies I explore the political legacy of this generational cohort as measured by 16 indicators of political engagement. The results suggest that while evidence of lasting generational differences in political attitudes and behaviors between boomers and those who preceded or followed them exist, they are generally small to modest, with variation over time driven more by the times in which people live than the times in which they were socialized.
Congressional Cohorts: The House Republican Class of 2010
Authors: Evans C. Lawrence
Published: November 2014

As a result of its size and close ties to the Tea Party movement, the freshman cohort of House Republicans elected in 2010 had a significant impact on the chamber. Compared to other Republicans, the districts the freshmen represented did not tilt more toward the GOP or the Tea Party, nor was their roll call ideology during 2011–2012 statistically distinguishable from that of their more senior colleagues. For votes that were Tea Party priorities, however, the effects of freshman status were often large. And the most consequential impact of the class was over party strategy and agenda. The role played by the 2010 House freshmen has implications for how we should think about party influence in Congress.
Foreign Junkets or Learning to Legislate? Generational Changes in the International Travel Patterns of House Members, 1977–2012
Authors: Alduncin Alexander , Kelly Sean Q , Parker David C.W. , Theriault Sean M.
Published: November 2014

In the aftermath of the polarization that has taken hold in Congress, some have pointed to the changing social connectedness of Congressional members as a possible cause, effect, or both. In this article, we take an initial look at this element of the story by analyzing one aspect of change over time in what are known as CODELs. We outline our data collection of these foreign trips taken by House members in two distinct periods and show how the use, users, and locations of these trips have changed. Among other changes, we find that more members are traveling than in the past, but that these trips are on average much shorter in duration. As a result, members of Congress are spending less time together during foreign travel, potentially reducing the opportunities for building relationships among them.
A new class of Tricomi–Legendre–Hermite and related polynomials
Authors: Pathan Mahmood A.
Published: November 2014

In this paper we introduce a new class of generalized Hermite–Legendre polynomials of 2-variables and consequently a new class of Tricomi, Bessel and Hermite polynomials and their generalizations starting from suitable generating functions. The theory of Bessel, Legendre, Hermite and of the associated generating functions and their generalizations is reformulated within the framework of a series rearrangement formalism by using different analytical means on their respective generating functions.
Victimization exposure and suicidal ideation among Spaniard adolescents evaluated at outpatient mental health services
Authors: Rodríguez-Blanco Lucía , de Neira Mónica Díaz , García-Nieto Rebeca , Zamorano-Ibarra María José , Ramos-García Silvia , Segura-Frontelo Alberto , Baca-García Enrique , Carballo Juan José
Published: November 2014

Suicidal ideation among adolescents has been associated with victimization in various studies; however, the nature of this association is not clear. Our aim was to examine the influence of victimization exposure on suicidal ideation in a clinical sample of adolescents. Eleven to 17-year-old subjects were recruited from Child and Adolescent Outpatient Psychiatric Services. They completed the Self-Injurious Thoughts and Behaviors Interview, the Stressful Life Events Scale, the State-Trait Anger Expression Inventory, the Children’s Depression Inventory, the Strengths and Difficulties Questionnaire, and the Family APGAR. Demographic data, developmental features, medical and psychiatric history, family history, and treatment histories were also evaluated. A backward stepwise logistic regression analysis was conducted to examine the influence of victimization exposure on suicidal ideation controlling for potential confounding variables. Two hundred and thirty-nine adolescents (62.3% male; mean age 14.31 years, SD=1.9) took part in this investigation. Of these, 20.9% reported victimization exposure. Adolescents who experienced peer victimization and/or were victims of a crime were significantly more likely to report suicidal ideation (χ2=10.05, df=1, p=0.002). However, suicidal ideation was only predicted by emotional and behavioral problems (χ2=4.79, df=1, p=0.029), depressive sympthomatology (χ2=3.17, df=1, p=0.075), and number of total stressful life events (χ2=4.02, df=1, p=0.045). Behavioral and emotional problems, as well as the accumulation of stressful life events may have a direct relation to suicidal ideation among adolescents evaluated at Child and Adolescent Mental Health Outpatient Services. Future studies might consider a comprehensive assessment of victimization and the cumulative effects of exposure to multiple stressful life events. Longitudinal designs are warranted.
Parameter Plane Synthesis and Performance Investigation of a Three-Phase Three-Level Bidirectional Rectifier
Authors: Bhat Abdul Hamid , Langer Nitin
Published: November 2014

In this paper, parameter plane synthesis of a three-phase neutral-point clamped bidirectional rectifier has been performed. The converter involves one outer-loop PI voltage controller and two inner-loop PI current controllers for the closed-loop control. D-partition technique has been employed for the precise design of the voltage controller. An experimental prototype of the converter has been developed, and the experimental investigation of the converter performance in closed loop has been carried out. DSP DS1104 of dSPACE has been used for real-time implementation of the designed controller. The converter gives a very good performance in steady state and dynamic state (for rectification as well as inversion modes of operation) using the designed controller parameters.
Extraction Kinetics and Properties of Proanthocyanidins from Pomegranate Peel
Authors: Qu Wenjuan , Shi Shuangqian , Li Pingping , Pan Zhongli , Venkitasamy Chandrasekar
Published: November 2014

With an objective of developing a safe and efficient method to extract proanthocyanidins products from pomegranate peel for use in nutraceuticals or as food additives, the effects of extraction parameters on the production efficiency, product properties, and extraction kinetics were systematically studied. The results showed that both extraction temperature and water–material ratio had significant effects on the proanthocyanidins content, but the yield was significantly affected only by temperature. The moderate temperature and water–material ratio were beneficial to maintain high proanthocyanidins scavenging activity and good product quality. The second-order extraction and Arrhenius kinetic models were developed and successfully used to predict the proanthocyanidins yield for given conditions tested. Extraction temperature of 60°C, water–material ratio of 30:1 g g−1, and time of 10 min are recommended for proanthocyanidins extraction from pomegranate peel, which corresponded to the highest yield of 40.6 mg g−1 and content of 89.1 mg g−1 having a scavenging activity of 31.5 g g−1, and an attractive reddish yellow color.
The unborn smoker: association between smoking during pregnancy and adverse perinatal outcomes
Authors: Mei-Dan Elad , Walfisch Asnat , Weisz Boaz , Hallak Mordechai , Brown Richard , Shrim Alon
Published: November 2014

To evaluate a possible dose-response relationship between active maternal smoking during pregnancy and adverse perinatal outcome.

Retrospective cohort study.

Population-based in Montreal, Quebec, Canada.

Women who gave birth to a liveborn or stillborn infant during the period of January 2001 to December 2007.

Active smokers of different daily cigarette consumption (n=1646) were identified through maternal self-reporting. The reference group comprised 19,292 non-smoking women who delivered during the same period.

Birth weight, preterm delivery rate, fetal and neonatal mortality and morbidity, and congenital malformations.

Preterm delivery rate was significantly higher in the smoking group compared with controls (22.2% vs. 12.4%, P<0.05), as was intrauterine fetal demise (1.4% vs. 0.3%, P<0.05). Newborns of active smokers were more likely to weigh less (3150±759 g vs. 3377±604 g, P<0.05), suffer from respiratory distress syndrome (2.5% vs. 1.3%, P<0.05), suffer from a cardiac malformation (1.5% vs. 0.8%, P<0.05), and die (neonatal death 1.2% vs. 0.6%, P<0.05). A dose-response relationship was demonstrated between levels of daily cigarette smoking and several adverse outcomes. Using multiple regression models, smoking was found to be an independent predictor of preterm delivery (odds ratios (OR) 1.9, 95% confidence intervals (95%CI) 1.6–2), and intrauterine fetal demise (OR 2.4, 95%CI 1.4–4.2).

Any amount of daily smoking appears to harm the fetus and newborn. As pregnancy may be a “window of opportunity” for behavioural changes, efforts to promote smoking cessation should be encouraged.
Ecological drivers of group size in female Alpine chamois, Rupicapra rupicapra
Authors: Chirichella Roberta , Mustoni Andrea , Apollonio Marco
Published: November 2014

In large mammalian herbivores, an increase in herd size not only reduces predation risk but also energy intake. As a consequence, the size of the groups made up by herbivores is often assumed to be the outcome of a trade-off depending on local predation risk and food availability. We studied Alpine chamois (
First record of Calomys cerqueirai (Rodentia: Phyllotini) in Espírito Santo (Brazil) with description of the 2n=36, FNA=66 karyotype
Authors: Colombi Victor Hugo , Fagundes Valéria
Published: November 2014

Two karyotypes have been reported for
Isolated myeloid sarcoma of the neck and chest: differential diagnosis and therapeutic approach
Authors: Djurdjevic Predrag , Jovanovic Danijela , Antic Darko
Published: November 2014

In this article, we present the case of a 57-yearold man with cervical and mediastinal tumor mass, normal blood count as well as virusological status. Cervical tumor tissue biopsy revealed cells positive for CD34, CD13, LCA, CD33, and CD163 but negative for T-cell and B-cell markers, NK-cell markers, plasmacytic markers and anaplastic large cell lymphoma markers. These features were consistent with myeloid sarcoma of the neck with involvement of the mediastinum. We discussed differential diagnosis and therapy of isolated myeloid sarcoma and suggest that clinical presentation, cell morphology, complete immunophenotype, and specific genotypic lesions in some cases, must be evaluated.
Prolonged paradoxical reaction to antituberculous treatment after discontinuation of TNF-alpha- blocker therapy with adalimumab. Rare clinical documentation
Authors: Falkenstern-Ge Roger Fei , Husemann Kim , Kohlhäufl Martin
Published: November 2014

In the past decades, tumor necrosis factor alpha (TNF-a) antagonist has been a milestone in the treatment of many chronic inflammatory diseases. TNF antagonist can increase patients´ susceptibility to many different kinds of infections especially those requiring granuloma formations despite regular performance of Screening for latent tuberculosis infection (LTBI). We report 2 cases of patients who developed tuberculosis under treatment with adalimumab, which was discontinued after the diagnosis of tuberculosis. During the tuberculosis therapy they unexpectedly developed a prolonged paradoxical reaction. In both cases we were only able to manage the progress of the paradoxical reaction through high steroid doses. Patients undergoing therapy with TNF- alphablocker are prone to develop tuberculosis infection, which could in turn lead to severe prolonged paradoxical reaction during anti-tuberculous treatment. An increased steroid dose may be required and is sometimes necessary
How to manage TB in children? Problems and
solutions in four cases
Authors: Buonsenso Danilo , Serranti Daniele , Focarelli Benedetta , Chiaretti Antonio , Calzedda Roberta , Valentini Piero
Published: November 2014

Children bear a substantial part of the tuberculosis
(TB) epidemic worldwide, and it is estimated that
there were ≅ 500.000 childhood TB cases globally in 2010,
although accurate data are problematic to obtain given
the many difficulties associated with TB diagnosis in children
and the weaknesses of surveillance systems in countries
where TB is endemic. The World Health Organization
is working hard in order to reduce the TB prevalence rates
and deaths by half by 2015. In this challenge, general
practitioners and pediatricians play a key role in detecting
early cases of suspected TB and sending them to experts
in infectious diseases. This will reduce delayed diagnosis
and the spread of disease, which is especially important
now that the prevalence of multidrug resistant TB is
increasing. For this reason, the purpose of this report was
to delineate the characteristic clinical features of the most
common forms of pediatric TB and to suggest a rational
and practical approach to the disease underlining the role
of patients and parents personal and clinical history.
Women’s Rights in Islamic Shari’a: Between Interpretation, Culture and Politics
Authors: Mansour Dina
Published: November 2014

This article analyses existing biases – whether due to misinterpretation, culture or politics – in the application of women’s rights under Islamic Shari’a law. The paper argues that though in its inception, one purpose of Islamic law may have aimed at elevating the status of women in pre-Islamic Arabia, biases in interpreting such teachings have failed to free women from discrimination and have even added “divinity” to their persistent subjugation. By examining two case studies – Saudi Arabia and Egypt – the article shows that interpretative biases that differ in application from one country to the other further subject women to the selective application of rights. Dictated by norms, culture and tradition rather than a unified Islamic law, the paper shows how culture and politics have contributed to such biases under the pre-text of Islamic dictate. As such, it proposes a re-examination of “personal status” laws across the region in light of international human rights norms.
Second law analysis for MHD permeable channel flow with
variable electrical conductivity and asymmetric Navier slips
Authors: Eegunjobi Adetayo S. , Makinde Oluwole D.
Published: November 2014

The inherent irreversibility in a steady hydromagnetic
permeable channel flow of a conducting
fluid with variable electrical conductivity and asymmetric
Navier slip at the channel walls in the presence of induced
electric field is theoretically investigated. The model
nonlinear governing equations are obtained and numerically
solved using shooting quadrature. Numerical results
for velocity and temperature profiles are utilised to compute
the entropy generation number and the Bejan number.
Pertinent results are displayed graphically and discussed
quantitatively.
Structure and spectroscopy of uranyl and thorium complexes with substituted phosphine oxide ligands
Authors: Breshears Andrew T. , Barnes Charles L. , Wagle Durgesh V. , Baker Gary A. , Takase Michael K. , Walensky Justin R.
Published: November 2014

Phosphine oxide ligands are important in the chemistry of the nuclear fuel cycle. We have synthesized and characterized a series of phosphine oxide ligands with polycyclic aromatic hydrocarbon (PAH) groups to enhance the spectroscopic features of uranyl, UO2
2+, and to make detection more efficient. Complexation of OPPh2R, R = C10H7 (naphthyl); C14H9 (phenanthrenyl); C14H9 (anthracenyl); and C16H9 (pyrenyl), to UO2(NO3)2 afforded the eight-coordinate complexes, UO2(NO3)2(OPPh2R)2. An eleven-coordinate complex, Th(NO3)4[OPPh2(C14H9)]3, C14H9 = phenanthrenyl, was structurally characterized, and was found to be the first thorium compound isolated with three phosphine oxide ligands bound. The phosphine oxide ligands were not fluorescent but the anthracenyl-substituted ligand showed broad, red-shifted emission at approximately 50 nm relative to typical anthracene, making this ligand set a possibility for use in detection. The synthesis and spectroscopy of the uranyl and thorium complexes are presented.
Stability analysis of FGM microgripper subjected to nonlinear electrostatic and temperature variation loadings
Authors: Jahanghiry Reza , Yahyazadeh Rajab , Sharafkhani Naser , Maleki Vahid A.
Published: November 2014

Considering the desired characteristics of functionally gradient materials (FGM), such as good thermal and wear resistance, this paper investigates the mechanical behavior of FGM microgripper under DC voltage and temperature variation. It is assumed that the two microbeams of the FGM microgripper are mounted symmetrically against each other, and the volume of ceramic varies exponentially with microbeam thickness. The nonlinear equations governing the static and dynamic deflection of microbeams due to the application of DC voltage and temperature variation are derived and solved using the step-by-step linearization method and the Galerkin method. In previous studies, the mechanical behavior of a microgripper with homogenous and the same material has been investigated; in this paper, the response and stability of the FGM microgripper against DC voltage and temperature variation are investigated. Also, the effect of geometrical dimensions, ceramic volume, and its variations with microbeam thickness on the mechanical behavior and system stability is studied.
Exploring New Synthetic Strategies for the Production of Advanced Complex Inorganic Nanocrystals
Authors: Bastús Neus G. , Gonzalez Edgar , Esteve Joan , Piella Jordi , Patarroyo Javier , Merkoçi Florind , Puntes Víctor
Published: November 2014

The design of new protocols for the colloidal synthesis of complex
nanocrystals (NCs) with advanced functionalities, comprising both
hybrid and hollow structures, and the study of their fundamental
properties is of paramount importance for the development of a new
generation of nanostructured materials. The possibility of tailoring
the dimensional regime of NCs, along with its composition and
structure, represents a landmark achievement in the control of their
unique physico-chemical properties. These properties, alongside with
the ability to cheaply produce high quality NCs in fairly large
amounts by wet-chemistry techniques, leads to their potential
applicability from materials science to nanomedicine. Within this
context, this review is focused on describing a successful framework
for designing synthetic strategies for the production of advanced
complex NCs, integrating the development of new synthetic methods with
its structural characterization, monitoring of their properties, and
study of its reactivity. As a result, it is expected to provide new
routes to produce robust and easy-to-process NCs in a wide range of
sizes, shapes and configurations that can be explored to achieve the
combination of all degrees of control, aiming to produce a complete
and diverse library of material combinations that will expand its
applicability in a wide diversity of fields.
Hyperinsulinemia induces hepatic iron overload by increasing liver TFR1 via the PI3K/IRP2 pathway
Authors: Jiang Xin , Wang Heyang , Shi Wencai , Shen Zhilei , Shen Hui , Li Min
Published: November 2014

Dysmetabolic iron overload syndrome (DIOS) is frequently observed, but the underlying mechanism remains unclear. We propose the hypothesis that hyperinsulinemia, a common characteristic of DIOS, may stimulate liver transferrin receptor 1 (TFR1) expression via the PI3K/iron regulatory protein 2 (IRP2) pathway, leading to the occurrence of DIOS. The hepatic iron content, serum iron parameters, and expressions of TFRs and IRPs in the liver were determined in rats with temporary or long-lasting hyperinsulinemia induced by acute or chronic administration of insulin. The effect of insulin on TFR1 expression and its molecular mechanism were determined in HL-7702 cellsin vitro. It was found that long-lasting hyperinsulinemia significantly increased TFR1 expression in the liver and induced mild-to-moderate hepatic iron overload, which was accompanied by a normal level of serum iron. Insulin markedly upregulated both protein and mRNA levels of TFR1 in HL-7702 cells. The stability ofTFR1mRNA stability, together with expression of IRPs expression, were both significantly increased by insulin treatment. Insulin-induced TFR1 expression was blocked by IRP2, but not by IRP1 interference, and disappeared when HL-7702 cells were pretreated with LY294002, triciribine hydrate, or rapamycin. In conclusion, the findings of this study indicate that hyperinsulnemia could induce hepatic iron overload by upregulating liver TFR1 via the PI3K/AKT/mTOR/IRP2 pathway, which may be one of the main reasons for the occurrence of DIOS.
Hyperglycemia has no effect on development of restenosis after percutaneous transluminal angioplasty (PTA) in a diabetic rabbit model
Authors: Zhou Xiaojun , Dong Jianjun , Zhang Li , Liu Ju , Dong Xiaofeng , Yang Qing , Liu Fupeng , Liao Lin
Published: November 2014

It is well known that hyperglycemia is a trigger of atherosclerosis in patients with diabetes mellitus. However, the role of hyperglycemia in restenosis remains unclear. In this study, we investigated the effects of hyperglycemia on restenosis. Stenosis was evaluated in two sets of diabetic rabbit models: i) diabetic restenosis versus nondiabetic restenosis and ii) diabetic atherosclerosis versus nondiabetic atherosclerosis. Our results indicated that there was no difference in rates of stenosis between the diabetic and the nondiabetic groups in restenosis rabbit models. However, the incidence of stenosis was significantly higher in the diabetic atherosclerosis group compared with the nondiabetic atherosclerosis group. Similarly, the intima–media thickness and cell proliferation rate were significantly increased in the diabetic atherosclerosis group compared with the nondiabetic atherosclerosis group, but there was no difference between the diabetic restenosis and the nondiabetic restenosis groups. Our results indicate that hyperglycemia is an independent risk factor for atherosclerosis, but it has no evident effect on restenosis. These findings indicate that the processes of atherosclerosis and restenosis may involve different pathological mechanisms.
Oxidative stress impairs function and increases redox protein modifications in human spermatozoa
Authors: Morielli Tania , O'Flaherty Cristian
Published: November 2014

Oxidative stress, generated by excessive reactive oxygen species (ROS) or decreased antioxidant defenses (and possibly both), is associated with male infertility. Oxidative stress results in redox-dependent protein modifications, such as tyrosine nitration andS-glutathionylation. Normozoospermic sperm samples from healthy individuals were included in this study. Samples were incubated with increasing concentrations (0–5 mM) of exogenous hydrogen peroxide, tert-butyl hydroperoxide, or diethylamine NONOate (DA-NONOate, a nitric oxide (NO∙) donor) added to the medium. Spermatozoa treated with or without ROS were incubated under capacitating conditions and then levels of tyrosine phosphorylation and percentage of acrosome reaction (AR) induced by lysophosphatidylcholine were determined. Modified sperm proteins from cytosolic, triton-soluble, and triton-insoluble fractions were analyzed by SDS–PAGE immunoblotting and immunocytochemistry with anti-glutathione and anti-nitrotyrosine antibodies. Levels ofS-glutathionylation increased dose dependently after exposure to hydroperoxides (P<0.05) and were localized mainly to the cytosolic and triton-soluble fractions of the spermatozoa. Levels of tyrosine-nitrated proteins increased dose dependently after exposure to DA-NONOate (P<0.05) and were mainly localized to the triton-insoluble fraction. ROS-treated spermatozoa showed impaired motility without affecting viability (hypo-osmotic swelling test). These treated spermatozoa had tyrosine phosphorylation and AR levels similar to that of non-capacitated spermatozoa following incubation under capacitating conditions, suggesting an impairment of sperm capacitation by oxidative stress. In conclusion, oxidative stress promotes a dose-dependent increase in tyrosine nitration andS-glutathionylation and alters motility and the ability of spermatozoa to undergo capacitation.

Free Spanish abstract

A Spanish translation of this abstract is freely available athttp://www.reproduction-online.org/content/149/1/113/suppl/DC1.
Adolescent Vaccine Co-administration and Coverage in New York City: 2007–2013
Authors: Sull Monica , Eavey Joanna , Papadouka Vikki , Mandell Rebecca , Hansen Michael A. , Zucker Jane R.
Published: November 2014

OBJECTIVES:

To investigate adolescent vaccination in New York City, we assessed tetanus, diphtheria, and acellular pertussis (Tdap), meningococcal conjugate (MCV4), and human papillomavirus (HPV) vaccine uptake, vaccine co-administration, and catch-up coverage over time.

METHODS:

We analyzed data from the Citywide Immunization Registry, a population-based immunization information system, to measure vaccine uptake and co-administration, defined as a Tdap vaccination visit where MCV4 or HPV vaccine was co-administered, among 11-year-olds. Catch-up vaccinations were evaluated through 2013 for adolescents born 1996 to 2000, by birth cohort. HPV vaccination among boys included data from 2010 to 2013.

RESULTS:

Adolescent vaccine administration was greatest during the back-to-school months of August to October and was highest for Tdap. Although MCV4 uptake improved over the study years, HPV vaccine uptake among girls stagnated; boys achieved similar uptake of HPV vaccine by 2012. By 2013, 65.4% had MCV4 co-administered with Tdap vaccine, whereas 28.4% of girls and 25.9% of boys had their first dose of HPV vaccine co-administered. By age 17, Tdap and MCV4 vaccination coverage increased to 97.5% and 92.8%, respectively, whereas ≥1-dose and 3-dose HPV vaccination coverage were, respectively, 77.5% and 53.1% for girls and 49.3% and 21.6% for boys. Age-specific vaccination coverage increased with each successive birth cohort (P < .001).

CONCLUSIONS:

From 2007 to 2013, there were greater improvements in Tdap and MCV4 vaccination than HPV vaccination, for which co-administration with Tdap vaccine and coverage through adolescence remained lower. Parent and provider outreach efforts should promote timely HPV vaccination for all adolescents and vaccine co-administration.
Doses extracranianas em pacientes submetidos a radiocirurgia estereotáxica para tumores cerebrais
Authors: Lundgren Maria da Salete Fonseca dos Santos , Khoury Helen Jamil , Azevedo Sérgio
Published: November 2014

OBJETIVO: Estimar a dose extracraniana nos olhos, tireoide, tórax e pelve em pacientes submetidos a radiocirurgia com acelerador linear de 6 MV. MATERIAIS E MÉTODOS: Foram avaliados 11 pacientes com tumores cerebrais primários (7 pacientes) e secundários (4 pacientes), sendo que dois destes apresentavam duas lesões. Para a estimativa da dose extracraniana, foram utilizados dosímetros termoluminescentes. Foram utilizados cones de 1,50 a 3,75 cm e as doses de radiação variaram de 1300 a 2000 cGy. RESULTADOS: A idade média dos pacientes foi de 52 anos, sendo 63,6% do sexo feminino e 36,4% do sexo masculino. As localizações das lesões foram: nervo acústico direito (1), frontal (2), parietal (5), occipital direito (1), cerebelar (2) e parassagitais (2). Os valores médios das doses recebidas na região entre os olhos foram de 5,1 cGy; no olho direito, de 4,8 cGy; no olho esquerdo, de 6,5 cGy; na tireoide, de 4,2 cGy; no tórax, de 1,65 cGy; e na pelve, de 0,45 cGy. CONCLUSÃO: Estes resultados mostram que embora as doses não ultrapassem os limites de tolerância para ocorrência da opacidade do cristalino, é importante que os médicos radioterapeutas considerem os riscos de dose de radiação nessas regiões durante o planejamento de procedimentos de radiocirurgia craniana.
Doença de Madelung: relato de caso e revisão da literatura
Authors: Rodrigues Ligia Persici , Melo Ernesto Lima Araujo
Published: November 2014

A doença de Madelung é caracterizada por massas simétricas de tecido adiposo no pescoço, ombros, braços e parte superior do tronco. A tomografia computadorizada demonstra achados de imagem característicos e é considerada o método de escolha para diagnóstico, estadiamento pré-operatório e acompanhamento pós-cirúrgico. Relatamos o caso de um homem com aspectos tomográficos típicos da doença de Madelung.
Síndrome de takotsubo após hemorragia subaracnoidea
Authors: Wajnberg Eduardo
Published: November 2014

A síndrome de takotsubo corresponde a uma cardiomiopatia caracterizada por uma disfunção miocárdica transitória afetando ápice do ventrículo esquerdo, que classicamente ocorre após grande estresse físico ou emocional (também chamada "síndrome do coração partido" ou "cardiomiopatia induzida por estresse"). Descrevemos a ocorrência de síndrome de takotsubo em uma paciente induzida por hemorragia subaracnoidea.
Resistance of melon cultivars to Bemisia tabaci biotype B
Authors: Baldin Edson LL , da Silva José Paulo GF , Pannuti Luiz Eduardo R
Published: November 2014

The silverleaf whitefly, Bemisia tabaci biotype B, is currently one of the most important pests of melon, causing direct and indirect damage to plants, and significantly reducing production in the field. Due to the need for alternative methods of chemical control in melon crops, the melon cultivars AF-646, AF-682, Don Luis, Frevo, Jangada, Nilo, Vereda, Amarelo Ouro and Hales Best were assessed at field, greenhouse, and laboratory trials for resistance to whitefly B. tabaci biotype B. In general, 'Hales Best' and 'Amarelo Ouro' were the most resistant, showing oviposition non-preference against whitefly. The trichome density is associated with the variation in oviposition on the cultivars and should be further investigated in future work. These results may be helpful in melon breeding programs, focusing on plant resistance to B. tabaci biotype B.
Produtividade biológica de genótipos de tomateiro em sistema hidropônico no outono/inverno
Authors: de Albuquerque Neto Antonio AR , Peil Roberta MN
Published: November 2014

O crescimento da planta de tomateiro depende de numerosos fatores, entre os quais se podem mencionar o genótipo, a radiação solar global incidente, a temperatura, a nutrição, o suprimento de água e a concentração de CO2, que atuam conjuntamente em complexa interação. Este trabalho teve o objetivo de avaliar a produtividade biológica de sete genótipos de tomateiro em cultivo hidropônico, no ciclo de outono/inverno caracterizado por baixa disponibilidade de radiação solar global, enfocando aspectos vegetativos e produtivos, a partição dos fotoassimilados e a eficiência no uso da radiação fotossinteticamente ativa (PAR), a fim de definir o(s) mais promissor(es) para o cultivo em casa de vegetação no sul do Rio Grande do Sul. O delineamento experimental utilizado foi em blocos casualizados com 7 tratamentos (genótipos) e 3 repetições, com 6 plantas por parcela. Dos genótipos utilizados, cinco pertencem ao grupo dos minitomates: Tomate Cereja Pendente Yubi Feltrin® (hábito determinado), Cereja Vermelho ISLA®, Minitomate Pêra Amarelo TOP SEED®, Grape (não comercial), Flavor Top (não comercial). Além desses, estudaram-se os genótipos Tomate Santa Cruz Kada Gigante TOP SEED® e Tomate Gaúcho TOP SEED®. As avaliações foram produtividade (g m-2) de matéria fresca e seca de hastes, folhas e frutos; área foliar; altura e compacidade de planta; radiação solar global e PAR incidentes. Os genótipos mais promissores para o cultivo em épocas de baixa disponibilidade de radiação solar são Kada Gigante, do tipo Santa Cruz, e Cereja Yubi de crescimento determinado, do grupo dos minitomates, por apresentarem produtividade de frutos superiores e uma alta eficiência no uso da PAR.
Fontes de resistência em tomateiro aos begomovírus bissegmentados Tomato yellow spot virus e Tomato severe rugose virus
Authors: Hurtado Francisco D , Gil Marta A , Zubiaur Yamila M , Aguilera Jorge G , Xavier César Augusto D , Zerbini Junior Francisco Murilo , Silva Derly Jose H da
Published: November 2014

Os begomovírus causam doenças de grande importância econômica em diversas culturas, principalmente em regiões tropicais e subtropicais. Juntamente com outras famílias de vírus, os begomovírus têm causado grande prejuízo para os produtores de tomate in natura e para processamento industrial. O objetivo deste trabalho foi avaliar o comportamento de 11 genótipos resistentes ao Tomato yellow leaf curl virus (TYLCV) frente à infecção pelos begomovírus Tomato yellow spot virus (ToYSV) e Tomato severe rugose virus (ToSRV) em condições de casa-vegetação. A inoculação das plantas foi realizada via biobalística no estádio de duas folhas verdadeiras. A infecção viral confirmou-se pelo desenvolvimento dos sintomas e pela técnica de hibridização dot blot. Selecionaram-se como promissores os genótipos STY2, STY5, STY6 e L7, por não apresentarem sintomas e por terem concentrações virais muito baixas para os dois vírus. O espectro de resistência dos genes Ty-1 e Ty-2 não resultaram efetivos ante as espécies virais empregadas no estudo. As linhagens TY52, H24 e CLN2116B, portadoras destes genes, foram suscetíveis aos vírus ToYSV e ToSRV.
Nitrogen applied in okra under non-tightness grown and residual fertilization
Authors: Cardoso Marinice O , Berni Rodrigo F
Published: November 2014

The aim of this study was to evaluate, in the Amazonian rainy season, the effect of nitrogen applied in okra under non-tightness grown and residual fertilization. The trial was carried out in the Embrapa Amazonia Ocidental, in Iranduba, Amazonas state, Brazil, between October/2010 and February/2011, in dystrophic Yellow Argisoil, medium texture, using pits with residual fertility. The experimental design was of randomized blocks with four repetitions (two lines with four plants, spacing of 1.5x1.0 m) and four main treatments (urea: 0.0; 20.0; 40.0 and 60.0 g plant-1 corresponding to 0.0; 60.0; 120.0 and 180.0 kg ha-1 of N, respectively, in two portions) using cv Dardo. Besides two additional treatments: chicken manure (1.0 L pit-1, with the cv Dardo) and cv Santa Cruz-47 (with urea rate of 40.0 g plant-1). Micronutrients in pits and dripping system irrigation were applied. All the studied traits had significant quadratic response with the increase of the urea rates. The highest estimated value for the plant height (39.7 cm), canopy diameter (86.2 cm), fruit number (36.0 un plant-1), fruit average mass (17.3 g), harvest number within production cycle (26.4 un cycle-1) and of the yield (4051 kg ha-1) were observed with (g plant-1 of urea): 48.3; 43.5; 38.5; 49.7; 32.7; and 40.5, respectively. Those original traits contributed reasonably poised for plant overall performance (PC1), but subordinate there was antagonism between harvest number and fruit number versus fruit average mass and canopy diameter (PC2). The chicken manure showed positive response compared to the control treatment, but didn't differ from urea rates for all these characteristics. When compared to cv Dardo, the cv Santa Cruz-47 only presented higher values to canopy diameter and number of harvests. The economical efficiency maximum dose was 40.2 g plant-1 of urea (120.6 kg ha-1 of N), with net income per hectare equal to 2.09 tons of okra fruits.
Comparação de métodos para a produção de frutos autofecundados em pimenteiras ornamentais
Authors: Rêgo Elizanilda R do , Nascimento Mayana F , Nascimento Naysa Flávia F do , Santos Rusthon Magno C dos , Fortunato Flávia Laís G , Rêgo Mailson M do
Published: November 2014

O mercado de pimenteiras no Brasil passa por grandes modificações, sendo crescente a exploração de novos tipos de pimentas, incluindo aquelas de interesse ornamental. Com o plantio em ambientes protegidos, aumentou a procura por híbridos com maior produtividade e valor comercial, de forma a tornar rentável o investimento nessa infraestrutura de produção. As sementes híbridas são obtidas a partir do cruzamento de linhagens endogâmicas que por sua vez, são obtidas por autofecundações sucessivas. O objetivo deste trabalho foi comparar dois métodos de proteção de botões florais após a autofecundação em pimenteiras ornamentais. O experimento foi conduzido em casa de vegetação, em laboratório da UFPB. Plantas de 15 híbridos e seus recíprocos foram utilizadas no teste de dois métodos de proteção do botão floral: 1= cobertura dos botões com papel alumínio e 2= fechamento dos botões com cola branca. Para cada metodologia foram realizadas dez autofecundações em cada híbrido, em pré-antese. Ao final, as médias de pegamento de frutos em cada metodologia foram contrastadas para cada híbrido. A média geral da taxa de pegamento de frutos observada para o método 1 (16%) foi inferior à observada para o método 2 (51%), não havendo um único híbrido em que a taxa de pegamento de frutos observada para o método 1 tenha superado aquela do método 2. Alguns híbridos apresentaram até 90% de pegamento de frutos quando se utilizou o método 2, em comparação a um máximo de 40% para o método 1. A direção do cruzamento, direto ou recíproco, também afetou a taxa de pegamento de frutos, porém sem influência do método de proteção do botão floral. Diante dos resultados encontrados neste trabalho, sugere-se o fechamento dos botões com cola branca para garantir o sucesso de autofecundações controladas em pimenteiras.
Nutrientes minerais em pimentão fertirrigado sob lâminas de irrigação e doses de potássio
Authors: Albuquerque Francimar S , Silva Ênio FF , Bezerra Neto Egídio , Souza Amanda ER , Santos Alexandre N
Published: November 2014

O presente trabalho teve como objetivo avaliar as concentrações de macronutrientes em folhas e frutos de plantas de pimentão submetidas a lâminas de irrigação e doses de potássio via fertirrigação. O delineamento experimental adotado foi inteiramente casualizado, em esquema fatorial 5x2, com quatro repetições, sendo cinco lâminas de irrigação (80, 90, 100, 110 e 120% da ETc) e duas doses de potássio (80 e 120 kg ha-1 de K2O), aplicadas parceladamente de acordo com a fase fenológica. A fertirrigação foi feita por intermédio de um sistema de irrigação por gotejamento, com emissores autocompensantes, instalado em uma bateria de 40 lisímetros de drenagem cultivados com pimentão (híbrido Maximos F1), localizada no campus da Universidade Federal Rural de Pernambuco em Recife-PE, cuja parcela experimental era composta por três plantas em cada lisímetro. Os resultados mostraram as seguintes ordens de concentração de nutrientes: N>K>Cl>Mg>Ca>P>S>Na, nas folhas, e K>N>Cl>P>Ca>S>Mg>Na, nos frutos. As máximas concentrações de K e Mg nas folhas foram obtidas com as lâminas de irrigação de 103,43 e 105,54% da evapotranspiração da cultura, respectivamente; as doses de K não inibiram a absorção dos nutrientes, exceto para Mg e S nas folhas.
Incidência de pragas e desempenho produtivo de tomateiro orgânico em monocultivo e policultivo
Authors: Gomes Flávia B , Fortunato Leidiane de J , Pacheco Anália Lúcia V , Azevedo Letícia H de , Freitas Narimã , Homma Sérgio K
Published: November 2014

O objetivo com este experimento foi comparar o cultivo do tomateiro em monocultivo e policultivo (consórcio com coentro, cravo-de-defunto e o sorgo como cultura circundante) no sistema de produção orgânico, em relação à incidência de pragas, rendimento e qualidade de frutos. Foram avaliados a incidência de tripes, plantas e frutos com sintomas de virose (%), frutos broqueados por Neoleucinodes elegantalis (%), a produtividade total e comercial, o número total e comercial de frutos, o peso médio e o diâmetro dos frutos comercializáveis, o teor de sólidos solúveis totais (SST), o teor de acidez total titulável (ATT) e a relação SST/ATT. No policultivo ocorreu menor número de tripes e, consequentemente, menor percentagem de plantas e frutos com sintomas da virose. A incidência de broqueamento de frutos por N. elegantalis também foi menor em policultivo. A produtividade total e o número total de frutos no monocultivo foram superiores à do policultivo. Porém, a produtividade comercial foi igual nos dois sistemas de cultivo. O diâmetro dos frutos não diferiu entre os tratamentos, mas o peso médio dos frutos oriundos do monocultivo foi maior. Os frutos do policultivo apresentaram maiores teores de SST e ATT e a relação SST/ATT não diferiu entre os tratamentos. Assim, reforça-se a importância da diversidade vegetal no manejo de pragas, sendo necessários novos estudos que permitam definir melhor arranjo espacial das plantas para manter sua atuação na regulação de insetos-praga e qualidade dos frutos sem interferir na produtividade do tomateiro.
Evolução do currículo de Contabilidade no Brasil desde 1809
Authors: Soares Sandro Vieira , Richartz Fernando , Voss Barbara de Lima , Freitas Claudio Luiz de
Published: November 2014

O objetivo deste trabalho é analisar os conteúdos que compuseram os currículos dos cursos de Contabilidade no Brasil desde a instituição das aulas de comércio em 1809. Esta pesquisa está limitada à análise do conteúdo normativo e somente sobre este ângulo ela expõe a evolução curricular. A base teórica desta pesquisa envolve trabalhos científicos de dois eixos: análise da composição curricular e história do curso de Ciências Contábeis no Brasil. Este trabalho é classificado como uma pesquisa descritiva, histórica, documental, qualitativa e pesquisa básica pura. A trajetória metodológica desta pesquisa histórica começou com a identificação da legislação que regulou os cursos de Contabilidade. Posteriormente, foi analisada cada norma e descrito o seu conteúdo, em busca das disciplinas que eram ensinadas. Com isso, os resultados da pesquisa apontaram que  algumas disciplinas, como administração, auditoria, atuária, perícia, sistemas contábeis, teoria da contabilidade e análise das demonstrações contábeis, foram incluídas nos currículos dos cursos. Outras, como caligrafia, datilografia, geografia, história e línguas estrangeiras foram eliminadas dos currículos. No entanto, foi percebido que algumas disciplinas se mantiveram constantemente ligadas ao curso, como as de direito comercial, direito processual, direito tributário, matemática financeira, estatística e escrituração mercantil. Outro ponto a ser destacado foi a observação de mudanças ocorridas nas cargas horárias conforme aconteciam as alterações normativas. A duração mínima do curso variou de dois a quatro anos e em alguns momentos foi dividido em um curso preparatório e outro sequencial ou superior. Também se pode verificar que houve um aumento da variedade de disciplinas nos currículos mais recentes.