bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigation on Thermo-Oxidative Aging Properties of Asphalt Binder with Hindered Phenolic Antioxidant
Authors: Wu W. , Li L. , Yu J. , Xu S. , Zhang C. , Xue L.
Published: October 2017

The modified asphalt binders with hindered phenolic antioxidant (Irganox 1010) were prepared by melt blending, and the effects of Irganox 1010 on physical and rheological properties of base asphalt were investigated by means of conventional physical properties tests and dynamic shear rheometer (DSR) tests. The short-term and long-term thermo-oxidative aging properties of asphalts with Irganox 1010 were studied by thin-film oven test (TFOT) and pressure aging vessel (PAV) test. The influence of Irganox 1010 on the chemical structure and compositions of asphalt before and after the aging test were evaluated using Fourier transform infrared spectroscopy (FTIR) analysis and thin-layer chromatography with flame ionization detection (TLC-FID) analysis, respectively. The results show that the penetration and ductility are increased, whereas the viscosity and softening point are decreased, with the addition of Irganox 1010, and Irganox 1010 also decreases the complex modulus and increases the phase angle of asphalt binder. The antioxidant-treated binders exhibit excellent resistance to thermo-oxidative aging. Furthermore, Irganox 1010 inhibits the carbonyl (at 1,700 cm−1) index and sulfoxide (at 1,035 cm−1) index increment by oxidation of phenolic hydroxyl and degradation of ester group, and changes of chemical compositions of asphalt show that Irganox 1010 peptizes the asphaltenes and exhibits effective inhibition of gelatinization of asphalt binder during the process of thermal oxidation aging.
Large-Scale Network Coupling with the Fusiform Cortex Facilitates Future Social Motivation
Authors: Utevsky Amanda V. , Smith David V. , Young Jacob S. , Huettel Scott A.
Published: October 2017

Large-scale functional networks, as identified through the coordinated activity of spatially distributed brain regions, have become central objects of study in neuroscience because of their contributions to many processing domains. Yet, it remains unclear how these domain-general networks interact with focal brain regions to coordinate thought and action. Here, we investigated how the default-mode network (DMN) and executive control network (ECN), two networks associated with goal-directed behavior, shape task performance through their coupling with other cortical regions several seconds in advance of behavior. We measured these networks’ connectivity during an adaptation of the monetary incentive delay (MID) response-time task in which human participants viewed social and nonsocial images (i.e., pictures of faces and landscapes, respectively) while brain activity was measured using fMRI. We found that participants displayed slower reaction times (RTs) subsequent to social trials relative to nonsocial trials. To examine the neural mechanisms driving this subsequent-RT effect, we integrated independent components analysis (ICA) and a network-based psychophysiological interaction (nPPI) analysis; this allowed us to investigate task-related changes in network coupling that preceded the observed trial-to-trial variation in RT. Strikingly, when subjects viewed social rewards, an area of the fusiform gyrus (FG) consistent with the functionally-defined fusiform face area (FFA) exhibited increased coupling with the ECN (relative to the DMN), and the relative magnitude of coupling tracked the slowing of RT on the following trial. These results demonstrate how large-scale, domain-general networks can interact with focal, domain-specific cortical regions to orchestrate subsequent behavior.
Should a Few Null Findings Falsify Prefrontal Theories of Conscious Perception?
Authors: Odegaard Brian , Knight Robert T. , Lau Hakwan
Published: October 2017

Is activity in prefrontal cortex (PFC) critical for conscious perception? Major theories of consciousness make distinct predictions about the role of PFC, providing an opportunity to arbitrate between these views empirically. Here we address three common misconceptions: (1) PFC lesions do not affect subjective perception; (2) PFC activity does not reflect specific perceptual content; and (3) PFC involvement in studies of perceptual awareness is solely driven by the need to make reports required by the experimental tasks rather than subjective experience per se. These claims are incompatible with empirical findings, unless one focuses only on studies using methods with limited sensitivity. The literature highlights PFC's essential role in enabling the subjective experience in perception, contra the objective capacity to perform visual tasks; conflating the two can also be a source of confusion.

Dual Perspectives Companion Paper:Are the Neural Correlates of Consciousness in the Front or in the Back of the Cerebral Cortex? Clinical and Neuroimaging Evidence, by Melanie Boly, Marcello Massimini, Naotsugu Tsuchiya, Bradley R. Postle, Christof Koch, and Giulio Tononi
Searching for Moral Dumbfounding: Identifying Measurable Indicators of Moral Dumbfounding
Authors: McHugh Cillian , McGann Marek , Igou Eric R. , Kinsella Elaine L.
Published: October 2017

Moral dumbfounding is defined as maintaining a moral judgement, without supporting reasons. The most cited demonstration of dumbfounding does not identify a specific measure of dumbfounding and has not been published in peer-review form, or directly replicated. Despite limited empirical examination, dumbfounding has been widely discussed in moral psychology. The present research examines the reliability with which dumbfounding can be elicited, and aims to identify measureable indicators of dumbfounding. Study 1 aimed at establishing the effect that is reported in the literature. Participants read four scenarios and judged the actions described. An Interviewer challenged participants’ stated reasons for judgements. Dumbfounding was evoked, as measured by two indicators, admissions of not having reasons (17%), unsupported declarations (9%) with differences between scenarios. Study 2 measured dumbfounding as the selecting of an unsupported declaration as part of a computerised task. We observed high rates of dumbfounding across all scenarios. Studies 3a (college sample) and 3b (MTurk sample), addressing limitations in Study 2, replaced the unsupported declaration with an admission of having no reason, and included open-ended responses that were coded for unsupported declarations. As predicted, lower rates of dumbfounding were observed (3a 20%; 3b 16%; or 3a 32%; 3b 24% including unsupported declarations in open-ended responses). Two measures provided evidence for dumbfounding across three studies; rates varied with task type (interview/computer task), and with the particular measure being employed (admissions of not having reasons/unsupported declarations). Possible cognitive processes underlying dumbfounding and limitations of methodologies used are discussed as a means to account for this variability.
clc-2c is regulated by salinity, prolactin and extracellular osmolality in tilapia gill
Authors: Breves Jason P , Keith Paige L K , Hunt Bethany L , Pavlosky K Keano , Inokuchi Mayu , Yamaguchi Yoko , Lerner Darren T , Seale Andre P , Grau E Gordon
Published: October 2017

Teleosts inhabiting fresh water (FW) depend upon ion-absorptive ionocytes to counteract diffusive ion losses to the external environment. A Clc Cl−channel family member, Clc-2c, was identified as a conduit for basolateral Cl−transport by Na+/Cl−cotransporter 2 (Ncc2)-expressing ionocytes in stenohaline zebrafish (Danio rerio). It is unresolved whether Clc-2c/clc-2cis expressed in euryhaline species and how extrinsic and/or intrinsic factors modulate branchialclc-2cmRNA. Here, we investigated whether environmental salinity, prolactin (Prl) and osmotic conditions modulateclc-2cexpression in euryhaline Mozambique tilapia (Oreochromis mossambicus). Branchialclc-2candncc2mRNAs were enhanced in tilapia transferred from seawater (SW) to FW, whereas both mRNAs were attenuated upon transfer from FW to SW. Next, we injected hypophysectomized tilapia with ovine prolactin (oPrl) and observed a marked increase inclc-2cfrom saline-injected controls. To determine whether Prl regulatesclc-2cin a gill-autonomous fashion, we incubated gill filaments in the presence of homologous tilapia Prls (tPrl177and tPrl188). By 24 h, tPrl188stimulatedclc-2cexpression ~5-fold from controls. Finally, filaments incubated in media ranging from 280 to 450 mosmol/kg for 3 and 6 h revealed that extracellular osmolality exerts a local effect onclc-2cexpression;clc-2cwas diminished by hyperosmotic conditions (450 mosmol/kg) compared with isosmotic controls (330 mosmol/kg). Our collective results suggest that hormonal and osmotic control of branchialclc-2ccontributes to the FW adaptability of Mozambique tilapia. Moreover, we identify for the first time a regulatory link between Prl and a Clc Cl−channel in a vertebrate.
Теоретичні аспекти дослідження соціального самопочуття студентської молоді
Authors: Yermakova T. G.
Published: October 2017

Глибинні трансформації сучасного українського суспільства торкаються всіх сфер людського життя, викликаючи різноманітні емоційно-оціночні реакції громадян на соціальні зміни та на власний статус у соціумі. Соціальне самопочуття населення є чинником, урахування якого має велике значення для розвитку всіх суспільних сфер, вибору векторів соціальних перетворень.У статті обґрунтована актуальність дослідження соціального самопочуття студентської молоді у зв’язку з її місцем у соціальній структурі суспільства, викладено методологічні засади дослідження соціального самопочуття студентства як соціальної верстви, висвітлено характеристики студентства у контексті сучасних суспільних трансформацій. Розкрита сутність основних теоретичних підходів до вивчення соціального самопочуття студентської молоді в умовах соціальних змін, висвітлені потреби студентства, які задовольняються у процесі навчання у вищому навчальному закладі, суспільній діяльності та особистісній взаємодії у студентському середовищі.Уточнено сутність понять «соціальне самопочуття», «студентська молодь», «освітні потреби». Охарактеризовано потреби студентства як специфічної верстви, приділено увагу комплексу соціальних потреб студентської молоді, які задовольняються за допомогою інституту освіти.
Playing bluegrass in Australia across country and folk scenes
Authors: Jones Miriam
Published: October 2017

Bluegrass music has attracted Australian musicians and audiences since the 1960s. The popularity of hillbilly music in Australia from the 1930s onwards meant that Australian musicians were primed to engage with and appropriate the aesthetically related sounds of bluegrass. Because of its niche status, bluegrass has found musical homes across larger Australian folk and country scenes. In turn, the internal logics, ideologies and institutional structures of these two scenes have shaped Australian bluegrass musicians’ musical practices. Oral histories of key figures in the history and institutionalization of bluegrass in Australia illuminate the ways in which musicians have engaged with bluegrass across folk and country scenes.
АНАЛІЗ ДИНАМІКИ ТА СТРУКТУРИ ЕКСПОРТУ АГРОПРОДОВОЛЬЧОЇ ПРОДУКЦІЇ
Authors: Антонюк О. П. , Антонюк П. О. , Лисюк В. М.
Published: October 2017

У статті досліджено питання товарної та географічної структури експорту агропродовольчихтоварів, які останніми роками становляться головними в загальному експорті. Розглянуто основні на-прями експортних потоків агропродовольчих товарів в розрізі чотирьох товарних груп, їх динаміку атакож можливості змін для зростання обсягів експорту.
THE DIRECTIONS OF MANAGEMENT OF THE COMMODITY DEBTS RECEIVABLE
Authors: Stupnytska T. , Volodina O. , Zhidkova K.
Published: October 2017

The existing problems of management of debts receivable, which economic entities deal with, havebeen considered in the article and the mechanism of management of debts receivable has been stated andthe stages of its implementation have been characterized.
INTRAECONOMIC CONTROL OF THE OPERATION WITH COMMODITY – MATERIAL VALUES
Authors: Тkachuk G. , Volodina O. , Zhigovska A.
Published: October 2017

The essence of intraeconomic control has been discovered in the article, the scientists’ points ofviews have been systematized, the peculiarities and main tasks of this type of control have been considered.The problematic questions, the solving of which will contribute to broadening of intraeconomic control of theoperations with commodity – material values and provide efficient management of an enterprise, have beenstated.
ОЦІНКА ОПТИМАЛЬНОЇ СТРУКТУРИ КАПІТАЛУ АГРОХОЛДИНГІВ УКРАЇНИ (KERNEL HOLDING S.A., MHP S.A.)
Authors: Дідух С. М. , Мініна В. О. , Федорова Т. С.
Published: October 2017

Дана стаття присвячена дослідженню фінансових результатів та особливостей формуваннякапіталу провідних агрохолдингів України в сучасних умовах. Проведено аналіз структури капіталу аг-рохолдингів України на прикладі Kernel Holding S.A. («Кернел») і MHP S.A. («Миронівський хлібопро-дукт»). Досліджено динаміку їх фінансових показників та структуру капіталу із використанням моделіWACC та методу CAPM. Представлено висновки та рекомендації щодо оптимізації структури капіталуKernel Holding S.A. і MHP S.A. у сучасних умовах.
Effects of satellite transmitters on survival in Snowy Owls Bubo scandiacus
Authors: Heggøy Oddvar , Aarvak Tomas , Øien Ingar Jostein , Jacobsen Karl-Otto , Solheim Roar , Zazelenchuk Dan , Stoffel Marten , Kleven Oddmund
Published: October 2017

The use of tracking devices to monitor birds is extensive, but the effects of such instruments on equipped individuals are still insufficiently taken into account. Here we evaluate potential effects of backpack-mounted satellite transmitters (platform terminal transmitters; PTTs) on survival of 28 Snowy Owls Bubo scandiacus. Six confirmed deaths were all probably related to natural and human-induced causes. Although PTT operational time was significantly shorter than expected lifetime of Snowy Owls, five owls were observed alive after transmissions ceased. Additionally four PTTs stopped due to low battery levels, indicating end of transmitter life and not owl mortality. We found no evidence of mortality caused by PTTs, but sample sizes are relatively low and detrimental effects on equipped Snowy Owls cannot be excluded. We recommend caution when instrumenting large owls.
Fatores preditivos de metástases axilares em pacientes com câncer de mama e biópsia de linfonodo sentinela positivo
Authors: Costa Neto Olívio Feitosa , Castro Rafael Bustamante , Oliveira Cibele Vasconcelos , Feitosa Thais Vieira Nogueira , Alves Júnior Josualdo Justino , Cavalcante Francisco Pimentel , Lima Marcos Venício Alves
Published: October 2017

RESUMO Objetivo: avaliar os fatores de risco para presença de doença metastática axilar não sentinela em pacientes com câncer de mama e biópsia do linfonodo sentinela positiva. Métodos: estudo transversal, retrospectivo, de mulheres com câncer mamário operadas no Instituto do Câncer do Ceará, entre os anos de 2002 e 2012 e submetidas à biópsia de linfonodo sentinela. Resultados: de 946 pacientes com câncer de mama, 331 foram submetidas à biópsia de linfonodo sentinela, que foi positiva em 83. Estas foram submetidas à linfadenectomia axilar e 39 (46%) apresentaram metástases em outros linfonodos axilares. As variáveis que foram significantes para doença axilar adicional foram Ki67>14 (p=0,043), presença de invasão angiolinfática (p=0,01) e tamanho tumoral (p=0,027). Não foi observado associação com receptores de estrogênio, progesterona, grau tumoral e Her-2. Discussão: a presença de invasão angiolinfática e tamanho tumoral tambémjáforam relacionados à metástase axilar adicional em outros estudos. Além destas variáveis observou-se o mesmo efeito preditivo quando avaliamos o Ki67. A validação destes resultados poderá permitira customização do tratamento do câncer de mama, podendo reduzir sua morbidade. Conclusão: invasão angiolinfática, tamanho tumoral (T3/T4) e Ki67>14 foram fatores preditivos de acometimento de metástase axilar além do linfonodo sentinela.
Prognostic factors and overall survival of breast cancer in the city of Goiania, Brazil: a population-based study
Authors: Freitas Júnior Ruffo de , Nunes Rodrigo Disconzi , Martins Edesio , Curado Maria Paula , Freitas Nilceana Maya Aires , Soares Leonardo Ribeiro , Oliveira José Carlos
Published: October 2017

ABSTRACT Objective: to analyze the overall survival and prognostic factors of women with breast cancer in the city of Goiânia. Methods: this is a retrospective, cross-sectional, observational study that included women with malignant neoplasms of the breast identified by the Goiânia Population-based Cancer Registry. The variables studied were age at diagnosis, tumor size, staging, axillary lymph node involvement, tumor grade, disease extent, hormone receptors, and c-erb-B2 oncoprotein. We performed overall survival analyzes of five and ten years. Results: we included 2,273 patients in the study, with an overall survival of 72.1% in five years and 57.8% in ten years. In the multivariate analysis adjusted for tumor size, the factors that influenced the prognosis were axillary lymph nodes, histological grade, progesterone receptor, c erb B2, T staging and disease extension. Conclusion: overall survival in ten years is below that observed in other countries, and possibly reflects what happens with the majority of the Brazilian population. The prognostic factors found in this population follow the same international patterns.
Epidemiological profile and treatment of substance losses by trauma to the lower limbs
Authors: Rezende Ricardo Barros Martins , Macedo Jefferson Lessa Soares de , Rosa Simone Corrêa , Galli Fernando Soares
Published: October 2017

ABSTRACT Objectives: to evaluate the epidemiological profile, the surgical treatment and the postoperative results of patients with complex traumatic injuries to the lower limbs. Methods: we conducted a retrospective study of patients with traumatic complex injuries treated by the Plastic Surgery Service of a regional hospital in Brasília. We analyzed clinical-epidemiological data, type of surgical procedure and functional recovery of the limb after six months of treatment. Results: 119 patients were treated, with a mean age of 29 years, predominantly men (76.4%). Motorcycle accident was responsible for most of the injuries, in 37.8% of cases. The most frequent surgical treatment was skin grafting (62.1%), followed by the fasciocutaneous flap (21.9%), muscular flap (12.6%) and microsurgical flap (3.4%). Six months after completion of the surgical treatment, 35.3% of the patients needed crutches to move, characterizing a delay in limb functional recovery that, however, was significantly related to the presence of fractures, external fixation or bone exposure in the preoperative period. Conclusion: the profile of the patient with complex traumatic lower limb injury was a male, motorcycle accident victim, and grafting was the most used treatment. Orthopedic trauma with bone fracture, bone exposure and the presence of external fixator were significantly associated with a higher risk of limb functional impairment, requiring locomotion crutches after six months of treatment.
Use of transfer factor in immunosuppressed surgical patients
Authors: Garritano Celia Regina Oliveira , Nubila Francesco di , Couto Renata M. , Fiorelli Rossano Kepler Alvim , Aun Luciana Berti
Published: October 2017

ABSTRACT Objective : to evaluate the action of Transfer Factor on the immune response of patients with malignant neoplasm submitted to surgery, chemotherapy and radiotherapy. Method: we analyzed the variations of leukocytes, total lymphocytes, T-lymphocytes and CD4 counts in 60 patients submitted to immunostimulation with a single, daily dose of 0.5mg sublingual Transfer Factor, started simultaneously with chemotherapy and/or radiotherapy. Results: there were statistically significant increases in the counts of all cell lines studied, more pronounced after 12 months of use of the medication. Conclusion: the Transfer Factor restored immune response and showed no side effects.
Effects of dimethylsulfoxide and pentoxifylline in the vitality of cutaneous flaps in rats
Authors: Pedretti Stephanie Luzia da Costa , Rena Cícero de Lima , Castãnon Maria Christina Marques Nogueira , Duque Ana Paula do Nascimento , Pereira Fernando Henrique , Nunes Tarcizo Afonso
Published: October 2017

ABSTRACT Objectives: to verify the influence of dimethylsulfoxide and pentoxifylline on the vitality of cutaneous flaps in rats and the tissue repair process. Methods: were studied 30 Wistar rats, submitting them to a 2cm wide by 8cm long dorsal cutaneous flap, of caudal base. We distributed the animals in three groups: Control Group (n=10) with application gauze moistened with 0.9% Saline in the flap bed for 30 seconds; Dimethylsulfoxide group (n=10), with administration of 1ml of 5% dimethylsulfoxide divided into five injections of 0.2ml in the transition of the flap segments; Pentoxifylline group (n=10), with administration of pentoxifylline 20mg/kg, diluted to 1ml and divided into five injections of 0.2ml in the transition of the flap segments. Drugs were administered intraoperatively, in a single dose and subcutaneously. We observed the skin flaps for changes in color and texture. On the 10th postoperative day, we checked the dimensions of viable and necrotic tissues, followed by excision of the specimen for histological analysis. Results: the measurements of length of the viable and necrotic tissues between groups showed no differences. Histological analysis showed that the Dimethylsulfoxide group presented neovascularization, inflammatory infiltrate with leukocytes and more structured conjunctival stroma. The Pentoxifylline group showed neovascularization and inflammatory infiltrate, with moderate to intense granulation. The control group evolved with a higher rate of necrosis in the distal segment. Conclusion: dimethylsulfoxide and pentoxifylline influenced the vitality of the flap and the tissue repair process. However, they did not prevent necrosis macroscopically.
Colon cancer surgery in patients operated on an emergency basis
Authors: Ramos Rodrigo Felippe , dos-Reis Lucas Carvalho Santos , Teixeira Beatriz Esteves Borgeth , Andrade Igor Maroso , Sulzbach Jaqueline Suelen , Leal Ricardo Ary
Published: October 2017

ABSTRACT Objective: to study the epidemiological profile of patients with colorectal cancer operated on an emergency basis at the Bonsucesso Federal Hospital. Methods: this is a retrospective study of patients operated between January 1999 and December 2012. We analyzed the following variables: age, gender, clinical data, TMN staging, tumor location, survival and types of surgery. Results: we evaluated 130 patients in the study period. The most frequent clinical picture was intestinal obstruction, in 78% of cases. Intestinal perforation was the surgical indication in 15%. The majority (39%) of the patients had advanced TNM staging, compared with 27% in the initial stage. There were 39 deaths (30%) documented in the period. The most common tumor site was the sigmoid colon (51%), followed by the ascending colon (16%). The curative intent was performed in most cases, with adjuvant treatment being performed in 40% of the patients. Distant metastases were found in 42% of the patients and 10% had documented disease recurrence. Disease-free survival at two and five years was 69% and 41%, respectively. Conclusion: there was a high mortality rate and a low survival rate in colorectal cancer patients operated on urgently.
Nutritional assessment methods as predictors of postoperative mortality in gastric cancer patients submitted to gastrectomy
Authors: Poziomyck Aline Kirjner , Cavazzola Leandro Totti , Coelho Luisa Jussara , Lameu Edson Braga , Weston Antonio Carlos , Moreira Luis Fernando
Published: October 2017

ABSTRACT Objectives: to determine the nutritional evaluation method that best predicts mortality in 90 days of patients submitted to gastrectomy for gastric cancer. Methods: we conducted a prospective study with 44 patients with gastric cancer, stages II to IIIa, of whom nine were submitted to partial gastrectomy, 34 to total gastrectomy, and one to esophago-gastrectomy. All patients were nutritionally evaluated through the same protocol, up to 72h after hospital admission. The parameters used were Patient-Generated Subjective Global Assessment (PGSGA), classical anthropometry, current weight and height, percentage of weight loss (%WL) and body mass index (BMI). We also measured the thickness of the thumb adductor muscle (TAM) in both hands, dominant hand (TAMD) and non-dominant hand (TAMND), as well as the calculated the prognostic nutritional index (PNI). The laboratory profile included serum levels of albumin, erythrocytes, hemoglobin, hematocrit, leukocytes, and total lymphocytes count (TLC). Results: of the 44 patients studied, 29 (66%) were malnourished by the subjective method, 15 being grade A, 18 grade B and 11 grade C. Cases with PGSGA grade B and TAMD 10.2±2.9 mm were significantly associated with higher mortality. The ROC curves (95% confidence interval) of both PGSGA and TAMD thickness reliably predicted mortality at 30 and 90 days. No laboratory method allowed predicting mortality at 90 days. Conclusion: PGSGA and the TAMD thickness can be used as preoperative parameters for risk of death in patients undergoing gastrectomy for gastric cancer.
Crise do capital e desmonte da Seguridade Social: desafios (im)postos ao Serviço Social
Authors: Castilho Daniela Ribeiro , Lemos Esther Luíza de Souza , Gomes Vera Lúcia Batista
Published: October 2017

Resumo: O presente artigo propõe a reflexão crítica sobre a crise do capital, suas inflexões no mundo do trabalho na conjuntura brasileira e os impactos na regressão de direitos. Analisa as contrarreformas implementadas a partir da década de 1990 e os sucessivos desmontes desferidos contra a política de Seguridade Social. A partir da perspectiva do projeto ético-político profissional, problematiza os desafios postos aos(às) assistentes sociais enquanto parte constitutiva da classe trabalhadora.
Assistência social em risco: conservadorismo e luta social por direitos
Authors: Silveira Jucimeri Isolda
Published: October 2017

Resumo: Este artigo aborda as tendências regressivas na política de assistência social no Brasil, a partir da análise dos constrangimentos institucionais típicos do pacto federativo e das evidências de retrocessos que colocam em risco as bases do Sistema Único de Assistência Social, com flagrante aprofundamento da programática neoliberal, numa conjunta de avanço das contrarreformas, ameaça à democracia e de redução dos direitos. A partir da análise das evidências de retrocessos, reafirma-se o necessário fortalecimento das formas de resistência e lutas sociais pela dignidade humana.
IMPACT OF OBESITY AND SURGICAL SKILLS IN LAPAROSCOPIC TOTALLY EXTRAPERITONEAL HERNIOPLASTY
Authors: KATO Juliana Mika , IUAMOTO Leandro Ryuchi , SUGUITA Fábio Yuji , ESSU Felipe Futema , MEYER Alberto , ANDRAUS Wellington
Published: October 2017

ABSTRACT Background: Laparoscopic totally extraperitoneal (TEP) hernia repair is a technically demanding procedure. Recent studies have identified BMI as an independent factor for technical difficulty in the learning period. Aim: To analyze the effect of overweight and obesity on the technical difficulties of TEP. Method: Prospective study on patients who underwent a symptomatic inguinal hernia by means of the TEP technique. Were analyzed gender, BMI, previous surgery, hernia type, operative time and complications. Technical difficulty was defined by operative time, major complications and recurrence. Patients were classified into four groups: 1) underweight, if less than 18,5 kg/m²; 2) normal range if BMI between 18,5 and 24,9 kg/m²; 3) overweight if BMI between 25-29,9 kg/m²; and 4) obese if BMI≥30 kg/m². Results: The cohort had a total of 190 patients, 185 men and 5 women. BMI values ranged from 16-36 kg/m² (average 26 kg/m²). Average operating time was 55.4 min in bilateral hernia (15-150) and 37.8 min in unilateral (13-150). Time of surgery was statistically correlated with increased BMI in the first 93 patients (p=0.049). Conclusion: High BMI and prolonged operative time are undoubtedly correlated. However, this relationship may be statistically significant only in the learning period. Although several clinical features can influence surgical time, upon reaching an experienced level, surgeons appear to easily handle the challenges.
COMPARATIVE STUDY OF POSTOPERATIVE PAIN BETWEEN THE LICHTENSTEIN AND LAPAROSCOPY SURGICAL TECHNIQUES FOR THE TREATMENT OF UNILATERAL PRIMARY INGUINAL HERNIA
Authors: PEDROSO Leandro Mendonça , DE-MELO Renato Miranda , DA-SILVA-JR Nelson Jorge
Published: October 2017

ABSTRACT Background: There are several surgical treatment options for inguinal hernia; however, there is no consensus on the literature identifying which surgical technique promotes less postoperative pain. Aim: To compare the intensity of postoperative pain between the surgical techniques Lichtenstein and transabdominal pre-peritoneal laparoscopy for the treatment of unilateral primary inguinal hernia. Methods: Were included 60 patients, of which 30 were operated through the Lichtenstein technique and 30 patients through the transabdominal pre-peritoneal laparoscopy. The pain levels were evaluated through the analogue visual scale for 2, 10 and 30 days after the surgery. Additionally, the recurrence rate and the presence of chronic pain and paresthesia were evaluated 12 months after the surgery. Results: Overall, the data analysis showed significant differences on pain levels between the surgical techniques. There were no significant differences between the pain levels for day 2. However, for 10 and 30 days after the surgery, the pain levels were significantly lower for the patients operated through the transabdominal pre-peritoneal laparoscopy technique compared to the Lichtenstein technique. Furthermore, despite no recurrent hernias for both surgical techniques, 32 % of patients operated through the Lichtenstein technique reported chronic pain and paresthesia 12 months after the surgery, compared with 3,6% of patients operated through the transabdominal pre-peritoneal laparoscopy technique. Conclusion: There are differences between the surgical techniques, with the transabdominal pre-peritoneal laparoscopy procedure promoting significantly lower postoperative pain (10 and 30 days) and chronic pain (12 months) compared to the Lichtenstein procedure.
PANCREATODUODENECTOMY: BRAZILIAN PRACTICE PATTERNS
Authors: TORRES Orlando Jorge M , FERNANDES Eduardo de Souza M , VASQUES Rodrigo Rodrigues , WAECHTER Fabio Luís , AMARAL Paulo Cezar G. , REZENDE Marcelo Bruno de , COSTA Roland Montenegro , MONTAGNINI André Luís
Published: October 2017

ABSTRACT Background: Pancreatoduodenectomy is a technically challenging surgical procedure with an incidence of postoperative complications ranging from 30% to 61%. The procedure requires a high level of experience, and to minimize surgery-related complications and mortality, a high-quality standard surgery is imperative. Aim: To understand the Brazilian practice patterns for pancreatoduodenectomy. Method: A questionnaire was designed to obtain an overview of the surgical practice in pancreatic cancer, specific training, and experience in pancreatoduodenectomy. The survey was sent to members who declared an interest in pancreatic surgery. Results: A total of 60 questionnaires were sent, and 52 have returned (86.7%). The Southeast had the most survey respondents, with 25 surgeons (48.0%). Only two surgeons (3.9%) performed more than 50% of their pancreatoduodenectomies by laparoscopy. A classic Whipple procedure was performed by 24 surgeons (46.2%) and a standard International Study Group on Pancreatic Surgery lymphadenectomy by 43 surgeons (82.7%). For reconstruction, pancreaticojejunostomy was performed by 49 surgeons (94.2%), single limb technique by 41(78.9%), duct-to-mucosa anastomosis by 38 (73.1%), internal trans-anastomotic stenting by 26 (50.0%), antecolic route of gastric reconstruction by 39 (75.0%), and Braun enteroenterostomy was performed by only six surgeons (11.5%). Prophylactic abdominal drainage was performed by all surgeons, and somatostatin analogues were utilized by six surgeons (11.5%). Early postoperative enteral nutrition was routine for 22 surgeons (42.3%), and 34 surgeons (65.4%) reported routine use of a nasogastric suction tube. Conclusion: Heterogeneity was observed in the pancreatoduodenectomy practice patterns of surgeons in Brazil, some of them in contrast with established evidence in the literature.
TWELVE YEARS OF EXPERIENCE USING CHOLECYSTOJEJUNAL BY-PASS FOR PALLIATIVE TREATMENT OF ADVANCED PANCREATIC CANCER
Authors: OLIVEIRA Marcos Belotto de , SANTOS Bruna do Nascimento , MORICZ André de , PACHECO-JUNIOR Adhemar Monteiro , SILVA Rodrigo Altenfelder , PEIXOTO Renata D’Alpino , CAMPOS Tércio De
Published: October 2017

ABSTRACT Background: The cholecistojejunal bypass is an important resource to treat obstructive jaundice due to advanced pancreatic cancer. Aim: To assess the early morbidity and mortality of patients with pancreatic cancer who underwent cholecystojejunal derivation, and to assess the success of this procedure in relieving jaundice. Method: This retrospective study examined the medical records of patients who underwent surgery. They were categorized into early death and non-early death groups according to case outcome. Results: 51.8% of the patients were male and 48.2% were female. The mean age was 62.3 years. Early mortality was 14.5%, and 10.9% of them experienced surgical complications. The cholecystojejunostomy procedure was effective in 97% of cases. There was a tendency of increased survival in women and patients with preoperative serum total bilirubin levels below 15 mg/dl. Conclusion: Cholecystojejunal derivation is a good therapeutic option for relieving jaundice in patients with advanced pancreatic cancer, with acceptable rates of morbidity and mortality.
SLEEVE GASTRECTOMY AND FUNDOPLICATION AS A SINGLE PROCEDURE IN PATIENTS WITH OBESITY AND GASTROESOPHAGEAL REFLUX
Authors: LASNIBAT Juan Pablo , BRAGHETTO Italo , GUTIERREZ Luis , SANCHEZ Felipe
Published: October 2017

ABSTRACT Background: Bariatric surgery in Chile has seen an exponential increase in recent years, especially in sleeve gastrectomy. Its use is currently discussed in patients suffering from gastroesophageal reflux disease. Different options have been considered for the management of these patients but up to now laparoscopic Roux-en-Y gastric bypass seems to be the best option. Sleeve gastrectomy plus concomitant fundoplication or hiatal hernia repair also has been suggested in patients having reflux or small hiatal hernia. Aim: To present a cohort of obese patients with gatroesophageal reflux undergoing this procedure, which seeks to provide the benefits of both laparoscopic gastric sleeve (LSG) and antireflux surgery focused on the evaluation of presence of reflux and BMI after surgery, and to compare the result observed in this cohort with a previous group of obese patients without reflux submitted to sleeve gastrectomy alone. Methods: Retrospective case series in 15 patients who underwent this surgery between the years 2003 and 2012. Clinical records were analyzed and values of 24 hr pH monitoring, esophageal manometry and clinical outcome were recorded. Results were compared to a previous series of patients who underwent LSG. No statistical analyses were made. Results: Group A consisted of 15 patients submitted to LSG plus fundoplication. 93% (n=14) were female. Mean age was 46.2 years. Mean preoperative body mass index (BMI) was 33.9. All patients had altered pH monitoring and manometry preoperatively. There was one minor complication corresponding to a seroma. There was no perioperative mortality. Group B consisted of 23 obese patients who underwent LSG. These patients developed de novo reflux, hypotensive LES and esophagitis after the surgery. Group A patients showed improvement in esophageal pH monitoring and manometry at three months. During long-term follow-up, six underwent revision surgery, four for weight regain, one regained weight associated with symptomatic reflux, and one underwent re-intervention for reflux. Conclusions: Good results are observed in the short-term follow up in both reflux resolution and weight loss. Nevertheless, results at long term are discouraging, with 53.3% of the patients requiring revision surgery during follow-up.
A análise de conteúdo como uma metodologia
Authors: Mendes Rosana Maria , Miskulin Rosana Giaretta Sguerra
Published: October 2017

RESUMO Neste artigo expomos a análise de conteúdo como uma metodologia de análise de dados da pesquisa qualitativa em Educação. A metodologia torna-se parte fundamental de um trabalho acadêmico, dando à pesquisa características que determinam a qualidade deste. Assim, apresentamos os “matizes” como o cenário em que o trabalho foi realizado, o período e o ambiente em que ocorreu o Curso de Extensão (módulos I e II), a escolha dos softwares utilizados, os participantes, as entrevistas coletivas e a explicitação de como se fizeram a coleta de dados e os registros orais e escritos. Com esse material, como bricoleurs, artesãs cosendo seu patchwork, fomos construindo nossa investigação, realizada com um enfoque qualitativo, tendo os dados analisados a partir da Análise de Conteúdo proposta por Bardin (1977) e Franco (2008).
Discusión y construcción de la categoría teórica de vulnerabilidad social,
Authors: Figueiredo Gustavo de Oliveira , Weihmüller Valentina Carranza , Vermelho Sônia Cristina , Araya Juan Bacigalupo
Published: October 2017

RESUMEN El artículo analiza la categoría teórica vulnerabilidad social y presenta resultados de una investigación realizada en favelas de Rio de Janeiro, RJ. A partir de estudios recientes sobre jóvenes, vulnerabilidad y condiciones de vida, problematizamos el concepto de vulnerabilidad social evidenciando y analizando las dimensiones e indicadores que guiaron la recolección de datos (pobreza, exclusión social y violencia). Utilizamos el método de la Investigacíon-Acción-Participación -IAP- contando con la colaboración de educadores que actúan en proyectos sociales en favelas. Los resultados permitieron analizar dos cuestiones: 1) Los abordajes participativos y cualitativos se presentaron fructíferos para la recolección de datos y el análisis de la categoría teórica vulnerabilidad social, 2) La constatación de la categoría exclusión social como condicionante principal de vulnerabilidad, abarcando las dimensiones: social, ideológica, jurídico-legal y extrema/letal.
Effects of reservoirs water level variations on fish recruitment
Authors: Lima Fabíula T. de , Reynalte-Tataje David A. , Zaniboni-Filho Evoy
Published: October 2017

ABSTRACT The construction of hydroelectric power plants has many social and environmental impacts. Among them, the impacts on fish communities, which habitats are drastically modified by dams, with consequences across the ecosystem. This study aimed to assess the influence of water level (WL) variations in the reservoirs of the Itá and Machadinho hydroelectric plants on the recruitment of fish species from the upper Uruguay River in southern Brazil. The data analyzed resulted from the WL variation produced exclusively by the hydroelectric plants generation and were collected between the years 2001 and 2012. The results showed significant correlations between the abundance of juvenile fish and the hydrological parameters only for some reproductive guilds. The species that spawn in nests showed, in general, a clear preference for the stability in the WL of the reservoirs, while the species that spawn in macrophytes or that release demersal eggs showed no significant correlation between the abundance of juvenile fish and hydrological parameters. A divergence of results between the two reservoirs was observed between the species that release semi-dense eggs; a positive correlation with a more stable WL was only observed in the Machadinho reservoir. This result can be driven by a wider range of WL variation in Machadinho reservoir.
A new species of Ituglanis (Siluriformes: Trichomycteridae) from the rio Uruguai basin, southern Brazil
Authors: Ferrer Juliano , Donin Laura M.
Published: October 2017

ABSTRACT A new species of Ituglanis associated to the grasslands of the Pampa biome is described from the rio Uruguai basin, southern Brazil. The new species is distinguished from its congeners by the low number of ribs and by a unique color pattern composed of an outer layer with scattered round black blotches equivalent in size to the eye circumference over a reddish brown background on the lateral surface of the body. We provide the genetic sequences of the mitochondrial gene Cytochrome c Oxydase subunit I (COI) for three of the paratypes and discuss aspects about the recent discovery of the new species.
A utilização de novos sistemas construtivos para a redução no uso de insumos nos canteiros de obras: Light Steel Framing
Authors: Olivieri Hylton , Barbosa Ivan Carlos Alves , Rocha Antonio Carlos da , Granja Ariovaldo Denis , Fontanini Patricia Stella Pucharelli
Published: October 2017

Resumo A utilização de novos sistemas construtivos pode representar reduções consideráveis no uso de insumos e operações nos canteiros de obras, tais como menor consumo de mão de obra na produção, redução na geração de resíduos, otimização da logística local, menor consumo de água e redução dos prazos de obra. Nesse contexto, o sistema Light Steel Framing (LSF) apresenta-se como um processo de grande potencial quando utilizado como um sistema construtivo para a produção de fachadas, em substituição ao sistema tradicional, composto de alvenaria de vedação e revestimento externo aderido, principalmente em edifícios com múltiplos pavimentos. O objetivo deste trabalho é comparar o LSF e o sistema tradicional de produção de fachadas, considerando-se quantitativamente a utilização de mão de obra, geração de resíduos, consumo de água e prazos de obra, por meio da análise de quatro estudos de caso em dois países (Brasil e Alemanha), que consideram empreendimentos para fins de moradia permanente ou temporária. As principais contribuições deste estudo estão relacionadas aos índices de consumo de mão de obra do LSF, apurados a partir dos estudos de caso, além de suas potenciais vantagens em comparação ao sistema tradicional.
Controle de obras por RFID: sistema de monitoramento e controle para equipamentos de segurança no canteiro de obras
Authors: Oliveira Victor Hugo Mazon de , Serra Sheyla Mara Baptista
Published: October 2017

Resumo É relevante o papel da Tecnologia da Informação e Comunicação (TIC) aplicada à cadeia produtiva da construção, em particular na gestão de equipamentos de segurança, cujas práticas convencionais de controle têm mostrado eficiência limitada. Sendo assim, este trabalho apresenta o estudo do desenvolvimento de um sistema de monitoramento e controle remoto de equipamentos de segurança utilizando a tecnologia Radio Frequency Identification (RFID) administrado pelo software, também desenvolvido nesta pesquisa, intitulado Controle de Obras por RFID. A rotina de ensaios combinou testes de laboratório para hospedagem e validação do sistema e experimentos em um canteiro de obras para a verificação do sistema em um ambiente real de construção. O modelo mostrou-se eficiente na identificação e localização dos equipamentos por meio da indicação de sua posição em imagens em planta. O modelo forneceu também relatórios gráficos e textuais que exibem as características de cada equipamento e apresentam os seguintes dados: nome, obra, local, marca, material, estado de conservação, previsão de revisão e responsável. A introdução da TIC no desenvolvimento de ferramentas, como o sistema proposto por este estudo, contribui para o avanço da gestão de equipamentos de segurança no canteiro de obras, podendo ser extrapolado para a gestão de outros componentes.
Avaliação experimental do espectrômetro Alta II e sua aplicação na normatização brasileira
Authors: Pereira Cláudia Donald , Marinoski Deivis Luis , Lamberts Roberto , Güths Saulo , Ghisi Enedir
Published: October 2017

Resumo A normatização brasileira relacionada ao desempenho termoenergético de edificações tem procurado inserir a refletância ou a absortância solar em seus critérios de análise. O objetivo deste artigo é analisar a exatidão e a repetibilidade de medições de refletância com o espectrômetro Alta II, bem como a influência da luminosidade do ambiente e da rugosidade da superfície sobre os valores medidos. Foram realizadas três séries de medições, variando os espectrômetros utilizados, a exposição à luz, e a rugosidade da superfície avaliada. Medições com o espectrofotômetro Lambda 1050 serviram de referência. A análise demonstrou que os resultados podem apresentar imprecisão elevada, com incerteza de ±0,10 nos valores absolutos de refletância solar. Sendo assim, o usuário do espectrômetro Alta II deve utilizá-lo com precaução, considerando tal erro. Também foi possível observar neste estudo que o Alta II pode ser usado especialmente para análise de superfícies planas e lisas. Além disso, deve-se garantir que as medições sejam realizadas com o cuidado de evitar a infiltração de luz através da superfície de contato entre o equipamento e a amostra.
Mapeamento do fluxo de valor de processo de construção virtual baseado em BIM
Authors: Dantas Filho João Bosco Pinheiro , Barros Neto José de Paula , Angelim Bruno Maciel
Published: October 2017

Resumo Este artigo relata um estudo de caso sobre o processo de construção virtual comprometido com a solução de interfaces de projetos e com a produção de um modelo 3D compatibilizado para a extração de quantitativos com confiabilidade. O propósito é estabelecer um quadro descritivo desse processo com a utilização de ferramentas de abordagens lean construction. Para isso, foi realizada uma revisão de literatura, uma análise documental e entrevistas com participantes-chave sob a perspectiva de uma metodologia qualitativa. O estudo foi realizado a fim de abordar duas questões específicas: como funciona a interação da equipe de construção virtual e como se dá a distribuição do tempo das tarefas. Os resultados demonstram que as tarefas que demandam a maior quantidade de horas de trabalho são a modelagem de arquitetura, de instalações sanitárias e de instalações elétricas. A principal contribuição deste trabalho é fornecer o detalhamento de uma experiência de construção virtual, seus elementos e suas interações. Apresenta ainda dados de produtividade das tarefas desenvolvidas por uma equipe de construção virtual bem estabelecida.
Salas de coordenação de projetos em BIM: proposta de um método de avaliação
Authors: Addor Miriam Roux Azevedo , Santos Eduardo Toledo
Published: October 2017

Resumo A Modelagem da Informação da Construção (BIM) foca em um modelo tridimensional que contém todas as informações da documentação tradicional 2D, e outras mais, num formato passível de processamento computacional mais útil. A coordenação de projetos desenvolvidos em BIM apresenta inúmeras vantagens quando comparada àquela baseada em CAD 2D. Porém, dada a drástica mudança na representação do projeto, existe a necessidade de modificações na infraestrutura física das salas de reuniões de coordenação para a obtenção do máximo benefício que o BIM pode proporcionar. Este trabalho visa ao desenvolvimento de um método de avaliação de salas de coordenação de projetos em BIM. Para a avaliação da qualidade de leiautes das salas foram propostos dez critérios e métricas. Com a finalidade de estabelecer uma relação de importância entre todos os critérios propostos foi aplicado o método AHP de decisão multicritério, baseado na análise de comparações em pares. Para a validação dos resultados foram analisados e avaliados 14 leiautes diferentes para uma mesma sala. O método proposto mostrou-se coerente como estratégia de avaliação e produziu resultados lógicos, sendo possível identificar as melhores alternativas. Os critérios e métricas apresentados são úteis para o projeto ou adaptação de ambientes para atender os usuários de salas de reuniões de projetos baseados em BIM.