bluuebunny/crossref_metadata_2025 huggingface dataset:
Systematic Review of Instructional Methods to Teach Employment Skills to Secondary Students With Intellectual and Developmental Disabilities
Authors: Gilson Carly B. , Carter Erik W. , Biggs Elizabeth E.
Published: April 2017

Effective vocational instruction is an essential aspect of preparing students with intellectual and developmental disabilities (IDD) for the world of work. We systematically reviewed research on instructional methods used to teach employment skills to secondary students with IDD. We identified 56 studies involving 766 participants with IDD. Four intervention approaches emphasized technology or some other instructional stimulus (i.e., self-management devices, video-based, audio-based, picture and tactile-based) and four focused on live instructors (i.e., direct instruction, augmentative and alternative communication, simulation, peer-delivered). Among the 21 instructional methods used within these approaches, performance feedback, device-assisted instruction, response prompting, and community-based instruction were the most common. We address the extent to which these intervention approaches were effective across students, instructional methods, settings, and outcomes, as well as offer recommendations for future research and practice.
Do Impairments Predict Hand Dexterity After Distal Radius Fractures? A 6-Month Prospective Cohort Study
Authors: Bobos Pavlos , Lalone Emily A. , Grewal Ruby , MacDermid Joy C.
Published: April 2017

Background: The relationship of routinely measured grip and motion measures may be related to hand dexterity. This has not yet been thoroughly examined following a distal radius fracture (DRF). The purpose of this study was to investigate if impairments in range of motion (ROM) and grip strength predict hand dexterity 6 months following a DRF. Methods: Patients with DRFs were recruited from a specialized hand clinic. Hand grip was assessed with a J-Tech dynamometer; ROM was measured using standard landmarks and a manual goniometer. Multiple regression analyses were performed to identify whether potential predictors (grip, ROM, age, hand dominance, and sex) were associated with 3-month or 6-month outcomes in large- and small-object subtests of the NK dexterity test in the affected hand. Results: Age, sex, and arc motion for radial-ulnar deviation were significant predictors of large-object hand dexterity explaining the 23% of the variation. For small-object hand dexterity, age and flexion-extension arc motion were significant predictors explaining 11% of the variation at 3 month after the fracture (n = 391). At 6 months post injury (n = 319), grip strength, arc motion for flexion-extension, and age were found to be significant predictors of large-object dexterity explaining 34% of the variance. For the small objects, age, grip strength, sex, and arc motion of radial-ulnar deviation explained 25% of the variation. Conclusions: Although this confirms that the impairments in ROM and grip that occur after a DRF can explain almost one-third of the variation in hand dexterity, it also suggests the need for dexterity testing to provide more accurate assessment.
Netnography
Authors: Costello Leesa , McDermott Marie-Louise , Wallace Ruth
Published: April 2017

This is the first article to describe how broadening of the term netnography in qualitative research is leading to misperceptions and missed opportunities. The once accepted need for human presence in netnographic studies is giving way to nonparticipatory (passive) approaches, which claim to be naturalistic and bias-free. While this may be tenable in some environments, it also removes the opportunity for cocreation in online communities and social media spaces. By contrast, participatory (active) netnographers have an opportunity to conduct their research in a way that contributes value and a continuity of narrative to online spaces. This article examines the ways in which netnographies are being used and adapted across a spectrum of online involvement. It explores the ways in which netnographies conform to, or depart from, the unique set of analytic steps intended to provide qualitative rigor. It concludes by advocating for active netnography, one which requires a netnographic “slog” where researchers are prepared for the “blood, sweat, and tears” in order to reap rich benefits.
Psychosocial Keys to African American Achievement? Examining the Relationship Between Achievement and Psychosocial Variables in High Achieving African Americans
Authors: Dixson Dante D. , Roberson Cyrell C. B. , Worrell Frank C.
Published: April 2017

Grit, growth mindset, ethnic identity, and other group orientation are four psychosocial variables that have been associated with academic achievement in adolescent populations. In a sample of 105 high achieving African American high school students (cumulative grade point average [GPA] > 3.0), we examined whether these four psychosocial variables contributed to the achievement of high achieving African Americans beyond the contribution of socioeconomic status (SES) and other demographic variables. Results indicated that the psychosocial variables were not significant predictors of academic achievement for the high achieving African American students in this sample. However, SES was a significant predictor of the academic achievement with a medium effect size. These findings suggest that interventions focused on grit, growth mindset, ethnic identity, and other group orientation may not be as effective as hypothesized.
Pro-tumoural CXCL10/CXCR3-A autocrine loop in invasive mucinous lung adenocarcinoma
Authors: Duruisseaux Micha�l , Rabbe Nathalie , Antoine Martine , Vieira Thibault , Poulot Virginie , Cadranel Jacques , Wislez Marie
Published: April 2017

Invasive mucinous adenocarcinoma (IMA) is a mucinous variant of lepidic predominant lung adenocarcinoma (LPA) and associated with a worse prognosis. We postulated that cytokine expression would enable us to differentiate IMA from LPA in terms of prognosis and acquisition of pro-tumoural capacities.

A 30-cytokine panel was assessed in bronchoalveolar lavage fluids (BALF) from IMA (n=38), LPA (n=25) and control samples (n=7). We investigated the expression of differentially expressed cytokines and splice variants of their receptors in surgical samples. The presence of
EGFR
and
KRAS
mutations were determined. We also examined the expression of cytokines and splice variants of their receptors in different cell lines, exploring their functional impact on signalling pathways, proliferation and migration.

Only C-X-C motif chemokine 10 (CXCL10) was differentially expressed, namely overexpressed in IMA BALF compared with LPA. CXCL10 overexpression in BALF was linked to a worse prognosis. In surgical samples, CXCL10 and its receptor C-X-C motif chemokine receptor 3 (CXCR3) were overexpressed in IMA compared to LPA. A pro-tumoural CXCR3-A splice variant was overexpressed in IMA, suggesting a CXCL10/CXCR3-A autocrine loop in IMA. CXCL10 and CXCR3 expression were not correlated with
EGFR
or
KRAS
status. CXCL10 up-regulated CXCR3-A expression, Erk1/2 phosphorylation and enhanced migration in the mucinous H2228 cell line.

CXCL10/CXCR3-A may play a pro-tumoural role in IMA
via
an autocrine mechanism.
Conditional Survival: An Assessment of the Prognosis of Patients at Time Points After Initial Diagnosis and Treatment of Locoregional Melanoma Metastasis
Authors: Haydu Lauren E. , Scolyer Richard A. , Lo Serigne , Quinn Michael J. , Saw Robyn P.M. , Shannon Kerwin F. , Spillane Andrew J. , Stretch Jonathan R. , McCarthy William H. , Thompson John F.
Published: April 2017

Purpose

Standard cancer staging and prognostic estimates are determined at the time of the patient’s initial disease presentation. Conditional survival is an alternative, dynamic assessment from follow-up time points after the initial disease diagnosis and is based on the condition of survivorship. Estimates of conditional survival can provide critical prognostic information for patients and clinicians, guide subsequent cancer follow-up schedules, and influence decisions regarding treatments. The current study presents conditional survival estimates developed from a cohort of 4,540 patients diagnosed with stage III melanoma treated at a single institution.

Methods

Patients with stage III disease at first melanoma diagnosis (initial; n = 2,042), or who developed locoregional metastasis as a first recurrence some time after primary diagnosis (recurrent; n = 2,498), were assessed. Conditional melanoma-specific survival (MSS) estimates up to 5 years after diagnosis were adjusted for age, sex, and 8th edition American Joint Committee on Cancer (AJCC) stage.

Results

Older age at diagnosis of stage III disease conveyed a worse prognosis at each conditional survival time point. Males had significantly worse MSS outcomes for up to 2 years of conditional survival, after which males and females had similar MSS. For patients with AJCC stage IIIB and stage IIIC disease, MSS outcomes were similar to those of patients with stage IIIA disease after 3 and 5 years of survivorship, respectively.

Conclusion

Adjuvant systemic treatments may have the greatest benefit when administered within the first 2 years of stage III melanoma diagnosis, during which period prognosis is significantly worse for male patients of increasing age and AJCC substage. Conditional survival estimates illustrate improved survival prospects for patients with cancer returning for follow-up and may define a finite period of increased risk after diagnosis.
Standardized symptom screening: Cancer Care Ontario's expanded prostate cancer index composite for clinical practice (EPIC-CP) provincial implementation approach.
Authors: Haji Farzana , Barbera Lisa Catherine , Bedford Colleen , Nichols Brett , Brundage Michael Donald
Published: April 2017

100

Background: Cancer Care Ontario endorses patient reported outcome measures to improve outcomes and experience for nearly 14 million Ontarians. The EPIC-CP tool, validated to screen/monitor symptoms and side-effects in men with localized prostate cancer, was selected to improve patient and provider experience, and facilitate symptom management. Two pilots tested EPIC-CPs feasibility and acceptability. Subsequent recommendations include: province-wide implementation, improving technological privacy, patient and provider education and communication processes. This abstract will describe the provincial strategy for implementation of EPIC-CP. Methods: The implementation approach involved stakeholder-driven practices based on Kotter’s organizational process framework. Clinical, technical, administrative and patient stakeholder representatives from 14 cancer centres formed working groups to create a climate for change, to engage centres to strategize locally, to implement and sustain change and to address the challenges identified by the EPIC-CP pilot. Results: The final pilot ended in June 2015, and executive endorsement for EPIC-CP provincial implementation in March 2016. A schedule for multi-site phased implementation was informed by stakeholder consultations and began in Oct 2016. Technological privacy improvements were informed by 95 representatives creating a multidisciplinary team tasked with provincial oversight, development of EMR guidelines and IT solutions. Five patient and five clinical educational guides were designed to assist in symptom management, each focusing on one domain of EPIC-CP. Creation of the guides drew on the clinical and scientific expertise among 12 clinicians of varying disciplines in collaboration with four patients. This team assisted in enhancing communication processes by designing 21 training materials, including FAQs and narrated guides, accessible on a central communications hub. Conclusions: Results indicate that this framework-based, stakeholder-driven approach was successful and could be applied to other wide-scale implementations of symptom management tools.
Sensitivity and specificity of self-reported cancer history compared to cancer registry.
Authors: Earle Craig
Published: April 2017

234

Background: The Ontario Health Study (OHS) is a large prospective epidemiologic cohort study in which any Ontario resident eighteen years of older may enroll regardless of prior medical history. Baseline data are collected using web-based tools. As part of the consent process, participants are asked for consent to link study data with administrative and health care claims databases, including the Ontario Cancer Registry (OCR). There is an option to enter their Health Insurance Number (HIN) for this purpose. The purpose of this study was to link these data and evaluate the accuracy of self-reported cancer history compared to the cancer registry. Methods: Consenting participants that provided HINs were deterministically linked to the administrative data. Those that did not were probabilistically linked using name, sex and date of birth. Cancer registry records indicating a cancer diagnosed before the date of completion of the OHS baseline survey were considered the gold standard. Concordance, sensitivity, and specificity were assessed. Results: OHS records were successfully linked to administrative claims data and the Ontario Cancer Registry (OCR) with an 85.13% match rate. The final cohort consisted of 139,798 participants. A personal history of cancer was reported by 13,171 of these subjects, out of which 10,066 were found with a record in the OCR. The sensitivity of self-report was 77% and the specificity 95%. Excluding cancers diagnosed after the completion of the baseline survey increased sensitivity of self-report to 93%. The main area of discrepancy causing low sensitivity was the self-reporting of non-melanomatous skin cancers in the OHS questionnaire. Conclusions: While some self-over-reporting of cancer history may occur, cancers with lower metastatic potential tend to be under-captured in our provincial cancer registry. These findings have implications for cohort creation for research and quality improvement.
A consolidated screening tool for supportive oncology needs and distress.
Authors: Weldon Christine B. , Vance Nancy , Scheu Amy , Wiebe Lauren Allison , Lo Shelly S. , Deamant Catherine , Roggenkamp Betty , Patel Urjeet , Khosla Paramjeet , Robinson Patricia A. , Penedo Frank J. , Gerhart James , Lillis Teresa , Dale William , Gordon Ana , Knightly Eileen , Berardi Rosa , Trosman Julia Rachel
Published: April 2017

47

Background: The IOM 2013 Report recommends that supportive oncology care start at cancer diagnosis; the Commission on Cancer (CoC) Standard 3.2 requires distress screening and indicated action. Screening tools are not standardized across institutions and often address only a portion of patients’ supportive oncology needs. Methods: A collaborative of 100+ clinicians, funded by The Coleman Foundation, developed a patient-centric consolidated screening tool based on validated instruments (NCCN Distress, PHQ-4, PROMIS) and IOM and CoC. The screening tool was piloted at 6 practice-improvement cancer centers in the Chicago area (3 academic, 2 safety-net, 1 public). Patients, providers assessing patients’ screening results (assessors), and providers receiving referrals (providers) were surveyed after use of the screening tool. Descriptive statistics were used to assess effectiveness of the tool. Results: Responders included 175 patients, 81 assessors, and 26 referral providers (social workers, chaplains, subspecialists). The majority of patients (160/175, 91%) completed the screening in <10 minutes, across all patients the screening tool averaged 4 ½ minutes. Most assessors (59/77, 76%) spent <5 minutes reviewing screening results. Most patients, assessors, and providers reported the screening tool asked the “right questions”. Assessors reporting partial relevance of some screening questions for 34% (26/77) of patients, uncovered ≥ 1 relevant needs for 96% (25/26) of those patients (p = 0.002). Conclusions: Use of a consolidated supportive oncology screening tool across multiple institutions is feasible, identified unmet patient needs, and was beneficial for assessors and providers. As the tool is adopted by collaborating institutions, variability in supportive oncology screening practices may decline, thus improving patient care. The tool has implications for quality improvements and national dissemination. [Table: see text]
Bone marrow aspirate quality assessment.
Authors: Safyan Rachael A. , Mathew Matthen , Marchi Enrica , Accordino Melissa Kate
Published: April 2017

76

Background: Bone marrow evaluation is the cornerstone of diagnosis, staging, and measurement of treatment response for many hematologic diseases. Aspirate adequacy is defined by whether the procedure results in a specimen of sufficient quality for pathologic review. Between July 1, 2014 and June 30, 2015, 49.3% of inpatient bone marrow aspirates performed by Hematology/Oncology fellows at Columbia University Medical Center were classified as suboptimal. Methods: We used the Plan-Do-Study-Act methodology to 1) understand the factors contributing to suboptimal aspirates, 2) evaluate the scope of the problem at both fellowship and institutional levels, 3) develop a training seminar to educate fellows on the procedure techniques, and 4) monitor for improvement post-intervention. We identified inpatient bone marrow biopsies performed by Hematology/Oncology fellows between July 1, 2015 and June 30, 2016 and tabulated aspirate adequacy as noted in the reports. A faculty-led educational seminar was held on February 1, 2016. Fellows completed a pre- and post-intervention survey to assess knowledge and experience with bone marrow aspirates. Bone marrow biopsy billing data was used as a surrogate marker for attending supervision. Results: All Hematology/Oncology fellows (n = 19) at Columbia University Medical Center participated. The pre-intervention survey (18 responses; 94.7%) revealed 76.5% of fellows had formal bone marrow aspirate training, 66.6% had supervision 25% to 75% of the time, and 52.9% were uncomfortable performing the procedure alone. Of the 43 aspirates from the pre-intervention period, 22 (51.2%) were adequate. 94.7% of fellows attended the training seminar. Post-intervention, 27 of 50 (54%) bone marrow aspirates were adequate. The post-intervention survey (16 responses; 84.2%) showed 93.3% of fellows were confident performing the procedure alone. There were fewer procedures billed in the post-intervention period (20.9% pre vs 8% post). Conclusions: A formal educational seminar on bone marrow aspirate technique increased fellow comfort with the procedure and trended toward improved aspirate adequacy. The next study phase will institute an annual training session for incoming fellows and create a bone marrow specimen preparation checklist.
Effect of Endotracheal Tube Cuff Shape on Postoperative Sore Throat After Endotracheal Intubation
Authors: Chang Jee-Eun , Kim Hyerim , Han Sung-Hee , Lee Jung-Man , Ji Sanghwan , Hwang Jin-Young
Published: April 2017

BACKGROUND:

Although minor, a sore throat after endotracheal intubation can adversely affect patient satisfaction and postoperative function. We compared the effects of 2 endotracheal tube cuff shapes on postoperative sore throat.

METHODS:

One hundred ninety-one adult patients were included in the study. After induction of anesthesia, patients were randomized to endotracheal intubation with a conventional cylindrical-shaped cuff (Group C, n = 95) or a tapered-shaped cuff (Group T, n = 96). The number of intubation attempts, time to achieve endotracheal intubation, and duration of intubation were recorded. Postoperative sore throat and hoarseness were assessed at 1, 6, and 24 hours after surgery. A 0- to 100-mm visual analog scale was used to evaluate sore throat severity. The primary outcome of this study was the overall cumulative incidence of postoperative sore throat in the 24-hour evaluation period in the 2 groups.

RESULTS:

The overall incidence of postoperative sore throat was lower in Group T than in Group C (32% vs 54%; relative risk = 0.60, 95% confidence interval: 0.43–0.85; P= .003). At 6 hours after surgery, the incidence and severity of postoperative sore throat were lower in Group T compared with Group C (Bonferroni-corrected P< .05). Postoperative hoarseness also occurred less frequently in Group T compared with Group C (19% vs 37%; P= .006). Group T had lower incidence of hoarseness at 1 and 6 hours after surgery than Group C (Bonferroni-corrected P< .05), but the incidence of hoarseness at 24 hours after surgery did not differ between groups.

CONCLUSIONS:

Intubation using an endotracheal tube with a tapered cuff reduced the incidence and severity of postoperative sore throat and the incidence of hoarseness after surgery when compared with an endotracheal tube with a cylindrical cuff.
Progesterone induced neuroprotection in reperfusion promoted mitochondrial dysfunction following focal cerebral ischemia in rats
Authors: Andrabi Syed Suhail , Parvez Suhel , Tabassum Heena
Published: April 2017

Alterations in mitochondrial permeability transition and organelle damage are key players in the development of cerebral ischemic tissue injury due to associated modifications in ATP turnover and cellular apoptosis/necrosis. Early restoration of blood flow and improvement of mitochondrial function might reverse the situation and help in recovery following an onset of stroke. Mitochondria and related bioenergetics can be effectively used as pharmacological targets. Progesterone (P4), one of the promising neurosteroids, has been found neuroprotective in various models of neurological diseases through a number of mechanisms. This influenced us to investigate the possible role of P4 via the mitochondria-mediated neuroprotective mechanism in ischemic stroke model of rat. In this study, we have shown the positive effect of P4 administration on behavioral deficits and mitochondrial health in ischemic/stroke injury model of transient middle cerebral artery occlusion (tMCAO). After induction of tMCAO, the rats received an initial intraperitoneal injection of P4 (8 mg/kg) or vehicle at 1h post-occlusion followed by subcutaneous injections at 6, 12, and 18 h. Behavioral assessment for functional deficits included grip strength, motor coordination, and gait analysis. Findings revealed a significant improvement with P4 treatment in tMCAO animals 2, 3, 5- triphenyltetrazolium chloride staining of isolated brain slices from P4 treated rats showed a reduction in the infarct area in comparison to vehicle group indicating the presence of more viable mitochondria. P4 treatment was also able to attenuate the mitochondrial ROS as well as modulate the mitochondrial permeability transition pore (mPTP) in the tMCAO injury. In addition, it was also able to ameliorate the altered mitochondrial membrane potential and respiration ratio in the ischemic animals thereby suggesting that P4 has a positive effect on mitochondrial bioenergetics. In conclusion, these results demonstrate that P4 treatment is beneficial in preserving the altered mitochondrial functions in cerebral ischemic injury and thus can help in defining better therapies.
Spatial distribution and molecular dynamics of dystrophin glycoprotein components at the neuromuscular junction in vivo
Authors: Aittaleb Mohamed , Martinez-Pena y Valenzuela Isabel , Akaaboune Mohammed
Published: April 2017

A bimolecular fluorescence complementation (BiFC) approach was used to study the molecular interactions between different components of the postsynaptic protein complex at the neuromuscular junction of living mice. We show that rapsyn forms complex with both α-dystrobrevin and α-syntrophin at the crests of junctional folds. The linkage of rapsyn to α-syntrophin and/or α-dystrobrevin is mediated by utrophin, a protein localized at acetylcholine receptor (AChR)-rich domains. In mice deficient in α-syntrophin, in which utrophin is no longer present at the synapse, rapsyn interaction with α-dystrobrevin was completely abolished. This interaction was completely restored when either utrophin or α-syntrophin was introduced into muscles deficient in α-syntrophin. However, in neuromuscular junctions deficient in α-dystrobrevin, in which utrophin is retained, complex formation between rapsyn and α-syntrophin was unaffected. Using fluorescence recovery after photobleaching, we found that α-syntrophin turnover is 5-7 times faster than that of AChRs, and loss of α-dystrobrevin has no effect on rapsyn and α-syntrophin half-life, whereas the half-life of AChR was significantly altered. Altogether, these results provide new insights into the spatial distribution of dystrophin glycoprotein components and their dynamics in living mice.
Bank Leverage Cycles
Authors: Nuño Galo , Thomas Carlos
Published: April 2017

We propose a general equilibrium framework with financial intermediaries subject to endogenous leverage constraints, and assess its ability to explain the observed fluctuations in intermediary leverage and real economic activity. In the model, intermediaries (“banks”) borrow in the form of short-term risky debt. The presence of risk-shifting moral hazard gives rise to a leverage constraint, and creates a link between the volatility in bank asset returns and leverage. Unlike TFP or capital quality shocks, volatility shocks produce empirically plausible fluctuations in bank leverage. The model replicates well the fall in leverage, assets, and GDP during the 2007–2009 financial crisis. (JEL D82, E44, G01, G21, G32)
Susceptibility Imaging in Glial Tumor Grading; Using 3 Tesla Magnetic Resonance (MR) System and 32 Channel Head Coil
Authors: Aydin Omer , Buyukkaya Ramazan , Hakyemez Bahattin
Published: April 2017

Background: Susceptibility weighted imaging (SWI) is a velocity compensated, high-resolution three-dimensional (3D) spoiled gradient-echo sequence that uses magnitude and filtered-phase data. SWI seems to be a valuable tool for non-invasive evaluation of central nervous system gliomas. Relative cerebral blood volume (rCBV) ratio is one of the best noninvasive methods for glioma grading. Degree of intratumoral susceptibility signal (ITSS) on SWI correlates with rCBV ratio and histopathological grade. This study investigated the effectiveness of ITSS grading and rCBV ratio in preoperative assessment.

Material/Methods: Thirty-one patients (17 males and 14 females) with histopathogical diagnosis of glial tumor undergoing routine cranial MRI, SWI, and perfusion MRI examinations between October 2011 and July 2013 were retrospectively enrolled. All examinations were performed using 3T apparatus with 32-channel head coil. We used ITSS number for SWI grading. Correlations between SWI grade, rCBV ratio, and pathological grading were evaluated. ROC analysis was performed to determine the optimal rCBV ratio to distinguish between high-grade and low-grade glial tumors.

Results: There was a strong positive correlation between both pathological and SWI grading. We determined the optimal rCBV ratio to discriminate between high-grade and low-grade tumors to be 2.21

Conslusions: In conclusion, perfusion MRI and SWI using 3T MR and 32-channel head coil may provide useful information for preoperative glial tumor grading. SWI can be used as an accessory to perfusion MR technique in preoperative tumor grading.
Severe weight gain after 4-year treatment with
aripiprazole in a young man with schizophrenia
Authors: Kozłowska Elżbieta , Wysokiński Adam
Published: April 2017

Schizophrenia is one of the major problem of the modern psychiatry. Due to its chronic nature, it requires continuous treatment with antipsychotics. Weight gain is one of the major drawbacks associated with the pharmacological treatment of schizophrenia. Aripiprazole is one of the atypical antipsychotics, with relatively good metabolic profile. There are very few published cases of aripiprazole-induced weight gain. We present a case of significant (50 kg) weight gain during 4-year treatment with aripiprazole in a 21-year-old Caucasian man with a diagnosis of paranoid schizophrenia. The mechanism underlying aripiprazole-induced weight gain may be associated with its potent binding to serotonin 5-HT2C receptor. This case confirms how significant is to monitor patients taking antipsychotics.
Marking to Market and Inefficient Investment Decisions
Authors: Otto Clemens A. , Volpin Paolo F.
Published: April 2017

We examine how mark-to-market accounting affects the investment decisions of managers with reputation concerns. Reporting the current market value of a firm’s assets can help mitigate agency problems because it provides outsiders (e.g., shareholders) with new information against which the management’s decisions can be evaluated. However, the fact that the assets’ market value is informative can also have a negative side effect: managers may shy away from investments that indicate conflicting private information and would damage their reputation. This effect can lead to inefficient investment decisions and make marking to market less desirable when market prices are more informative.

The Internet appendix is available at https://doi.org/10.1287/mnsc.2016.2696 .

This paper was accepted by Gustavo Manso, finance.
Current concepts in elbow arthroplasty
Authors: Bachman Daniel , Cil Akin
Published: April 2017

Distal humeral replacement and the total elbow are two commonly-used arthroplasties Each prosthesis has evolving indications and surgical techniques Recent changes in device design and implantation methods are due to biomechanical and clinical outcome-based research New prostheses and methods provide: better elbow kinematics, more durable bearings and longer-lasting joint replacement potential

Cite this article: EFORT Open Rev 2017;2:83-88. DOI: 10.1302/2058-5241.2.160064
Rough riders in the cradle of civilization: Buffalo Bill’s Wild West show in Italy and the challenge of American cultural scarcity at the fin-de-siècle
Authors: Magrin Alessandra
Published: April 2017

Comparisons with European culture have often generated feelings of discomfort and anxiety in the United States. Since the age of the Enlightenment, American culture has been associated with a desert or wasteland. This conceptual inclination persisted well into the 19th century − when several American writers picked up on the perceived dearth of culture that the American intellectual landscape offered − until the Gilded Age, when the United States powerfully asserted itself as an economic and industrial power. Cultural affirmation remained, therefore, the last frontier for America to conquer. In this context, the soft power operated by Buffalo Bill Cody’s Wild West show in Europe proved to be a tremendous tool for the assertion of American cultural vitality on a worldwide scale. America’s ultimate validation, I argue, was established when Cody’s show landed in Italy, ‘the cradle of western civilization’, a stage which exuded a powerful significance in the sphere of culture, and which Cody orchestrated as a symbolic translatio imperii, by picturing himself as a Novel Columbus and America as the vessel of human progress. The resonance of Cody’s Italian tours had a regenerating effect on America; witnessing Italian culture in a moment of profound decadence fostered America’s collective confidence in its cultural superiority and confirmed its newfangled ‘exceptionalism’.
GÊNERO: REPRESENTAÇÕES DE ALUNOS DO ENSINO FUNDAMENTAL
Authors: Silva Fabio Luiz , França Cyntia Simioni
Published: April 2017

Esse artigo objetiva descrever os resultados de uma pesquisa que investigou as representações de gênero entre alunos de escola pública, dos anos iniciais do ensino fundamental II. O estudo foi realizado em seis turmas do sexto ano do ensino fundamental, totalizando 226 alunos, dos quais 126 meninos e 100 meninas, entre 10 e 11 anos. Foi solicitado que as crianças expressassem por meio da escrita e do desenho sua opinião a respeito do que é “ser homem” e “ser mulher”. O objetivo era descobrir as representações que esses alunos tinham em relação à questão do gênero. Flagraram-se nessa atividade algumas imagens (desenhos) que trazem as vozes dos alunos acerca do que é “ser homem e o que é ser mulher” na contemporaneidade, carregadas de visões estereotipadas. A partir dos desenhos dos alunos pôde-se pensar sobre os desafios e as potencialidades de se discutir as relações entre diversidade e gênero no espaço escolar, a fim de buscar propostas de ação docente mais efetivas, no sentido de construir outro olhar para a diversidade e alterações das relações de gênero na escola e, portanto, na sociedade. Tarefa, certamente, árdua, mas possível e emergente, pois a desigualdade de gênero implica relações assimétricas de poder.
IMAGENS DA DOCÊNCIA ENTRE LICENCIANDOS: VISUALIDADES COMUNS E TRANSGRESSORAS.
Authors: Sardelich Maria Emilia
Published: April 2017

Este artigo tem por objetivo dar visibilidade às representações da docência que estão se construindo entre licenciandos em um contexto de desprofissionalização e excesso de informação/imagens que afetam nossos modos de pensar, agir e aprender. A investigação, realizada com licenciandos da Universidade Federal da Paraíba (UFPB), situa-se no âmbito dos Estudos Culturais, mais precisamente no campo da Cultura Visual, compreendendo o visual como lugar de interação social, no qual transitam enunciados conflitantes em meio a processos de identificação. Os resultados alcançados apontam para uma visualidade comum atrelada à missão docente vocacional. Junto a essa visualidade comum também emergem outras que sinalizam um modo transgressor de ver e ver-se na docência.
A CONSTRUÇÃO CURRICULAR COLETIVA NA FORMAÇÃO DE PROFESSORES DA EDUCAÇÃO ESPECIAL
Authors: Givigi Rosana Carla do Nascimento , De Alcântara Juliana Nascimento , Dourado Solano Sávio Figueiredo , Peixoto Marcus Valerius da Silva , Da Silva Amanda Fernandes
Published: April 2017

Em tempos de assunção do paradigma da inclusão como norteador das práticas educativas, a formação do professor tem sido problematizada. Um dos desafios quando se pensa a proposição de uma formação de professores é a construção de um currículo de formação que atenda à heterogeneidade profissional. Este trabalho teve por objetivo acompanhar a elaboração do currículo de um curso de formação de professores na perspectiva inclusiva e seus efeitos, à luz da pesquisa-ação colaborativo-crítica. Referenciou-se os procedimentos realizados neste estudo pela Pesquisa-ação colaborativo-crítica. O grupo de sujeitos da pesquisa foi composto por 22 professoras das redes públicas estadual de Sergipe e municipal de um município da Grande Aracaju, entre professores da sala comum e do atendimento educacional especializado (AEE). Como resultados, foram eleitas três temáticas principais a serem contempladas no currículo: Comunicação Alternativa, Adaptação/Flexibilização Curricular e Práticas Pedagógicas Inclusivas. As demais temáticas seriam levantadas imprevisivelmente, de acordo com as necessidades que emergissem do/pelo processo. Os preceitos da pesquisa-ação convergiram para a construção de um currículo materializado a partir da implicação mútua dos participantes e pesquisadores. O olhar esteve dilatado para as demandas que iam surgindo conforme o processo formativo acontecia, dada a imprevisibilidade que a pesquisa-ação assume marcar processos iminentemente humanos, de transformação. Possibilitou-se, assim, que as problematizações lançadas pelo grupo de pesquisadores ecoassem no grupo de sujeitos, levando a um nível mais aprofundando e crítico de reflexão quanto à sua construção docente.
A INCLUSÃO NA EDUCAÇÃO INFANTIL: O ESTUDO DE CASO DE UMA CRIANÇA COM DEFICIÊNCIA VISUAL
Authors: Rocha Keuri Costa Carvalhais da , Garrutti Erica Aparecida
Published: April 2017

Este artigo se volta para o conhecimento de especificidades do atendimento das necessidades educacionais de uma criança com deficiência visual matriculada na Educação Infantil. Tem como objetivo analisar como ocorre a participação de uma criança cega em processo de inclusão em uma instituição de Educação Infantil. A pesquisa foi realizada em um grupo de maternal em uma creche do município de Guarulhos, Estado de São Paulo, em que havia uma criança cega matriculada. Pautou-se no caráter qualitativo e se configurou como um estudo de caso, tendo como participantes: uma criança cega, as duas educadoras da turma do maternal, a coordenadora pedagógica e a vice-diretora da instituição. Para a coleta de dados, foram realizadas observações da rotina dessa turma em dois momentos: março e abril de 2012; e junho de 2012. Os instrumentos utilizados para registro dos episódios observados foram gravações em vídeos, fotografias e notas de campo. Posteriormente ao período de observação, entrevistaram-se as duas educadoras da turma, a coordenadora pedagógica e a vice-diretora. Os resultados da pesquisa revelaram a importância e as contribuições da mediação nos processos de ensino e aprendizagem, especificamente, no caso da criança cega. A perspectiva histórico-cultural de desenvolvimento humano, elaborada por Vygotsky (1897 - 1934), constituiu a base para a discussão.
LEGISLAÇÃO SOBRE PROTEÇÃO DAS FONTES DE ÁGUA MINERAL NO BRASIL: UMA BREVE ANÁLISE
Authors: Andrade Medeiros Karina
Published: April 2017

As modificações no uso da terra têm colocado em risco a qualidade das águas subterrâneas e causado preocupação, principalmente quando destinado ao consumo humano. Nesse sentido, alguns instrumentos legais foram desenvolvidos para auxiliar no controle de sua qualidade. Este estudo tem o objetivo de explanar as principais medidas de proteção das águas subterrâneas e analisar a efetividade desses dispositivos legais, sobretudo a portaria n. º 231, de 31 de julho de 1998, do Departamento Nacional de Produção Mineral – DNPM, que estabelece a delimitação de perímetros de proteção das águas minerais ou potáveis de mesa. A partir do conhecimento sobre as medidas de controle de qualidade da água subterrânea foi possível uma análise crítica sobre suas práticas.
ANÁLISE DO RELEVO PARA O MAPEAMENTO DE ÁREAS FAVORÁVEIS AO PROCESSO DE INFILTRAÇÃO
Authors: Hoffmann Oliveira Anna , Klinke Neto Gustavo , Yoshinaga Pereira Sueli
Published: April 2017

A recarga tem início com a infiltração da água superficial através do perfil do solo, alcançando os aquíferos. Este processo pode levar dias, meses ou anos dependendo das características dos aquíferos, tais como sua profundidade, geologia e transmissividade. Os modelos hidrológicos são capazes de determinar o movimento de água no solo através dos processos de infiltração, percolação e escoamento superficial e subsuperficial. O objetivo deste trabalho foi aplicar o índice topográfico de umidade (Topographic Wetness Index – TWI) numa sub-bacia de 524 ha localizada às margens do Rio Mogi Guaçu, no município de Mogi Guaçu (SP). Nas áreas de cabeceira, onde o relevo é ondulado, a umidade é reduzida, em vista do favorecimento do escoamento superficial, refletindo diretamente na diminuição da infiltração de água. As áreas com elevado índice de umidade possuem maior potencial de recarga subterrânea de água e, portanto, o TWI foi eficaz em definir na paisagem as regiões mais favoráveis à infiltração da água no perfil do solo. Tais regiões se concentram preferencialmente nas conexões de áreas planas com regiões de concentrações de fluxo, o que torna fundamental a conservação da vegetação nestas áreas, a fim de aumentar a infiltração, reduzir a suscetibilidade à erosão e aumentar a recarga hídrica na sub-bacia.
AVALIAÇÃO DA QUALIDADE BACTERIOLÓGICA E ESPÉCIES NITROGENADAS DAS ÁGUAS SUBTERRÂNEAS DE POÇOS DA ÁREA URBANA DE BARREIRAS-BA
Authors: Souza Almeida Luiz Fernando , Donizeti Leite Oldair , Da Cruz da Guarda Leandro
Published: April 2017

O presente trabalho avaliou a qualidade das águas subterrâneas na área urbana do município de Barreiras-BA, através de dois métodos de exames bacteriológicos (tubos múltiplos e colitag), para comparações de resultados e espécies nitrogenadas, que são parâmetros que indicam contaminação por esgotos (amônio, nitrito e nitrato). As coletas foram realizadas em 20 poços, distribuídos em rasos e profundos, com quatro campanhas para os exames bacteriológicos e duas para as espécies nitrogenadas, em época de chuvas e de estiagem. Dos resultados bacteriológicos, de 80 amostras analisadas, 65 % apresentaram-se insatisfatórios, que pode estar relacionado ao aspecto construtivo, localização do poço e variações sazonais, e com resultados dos dois métodos muito semelhantes. Nas espécies nitrogenadas, somente nos poços rasos, o íon amônio ultrapassou o Valor Máximo Permissível (1,5 mg L-1 N-NH4 + ). O nitrito encontrou-se dentro dos padrões nos poços rasos e profundos. Quanto ao nitrato, nos poços rasos, 83 % ultrapassaram o VMP (10 mg L-1 N-NO3 - ) e os profundos, com valores variando de 4,0 a 14,43 mg L-1 N-NO3 - , que são valores de alerta. A maior parte desses poços se encontra na área urbana de ocupação mais antiga da cidade.
CARACTERIZAÇÃO PRELIMINAR DA QUALIDADE DA ÁGUA SUBTERRÂNEA NO ESTADO DA BAHIA QUANTO AOS TEORES DE SULFATO
Authors: Azevedo Vasconcelos Maiana , Brandão de Oliveira Iara
Published: April 2017

A água subterrânea possui uma dinâmica própria e, com isso, as características químicas refletem os meios por onde percolam, sendo influenciadas pela interação entre as mesmas e a rocha na qual o aquífero está inserido. Desta forma, a qualidade da água poderá ser alterada não apenas por ação antrópica, como também pela evolução do processo de intemperismo. O sulfato é muito comum na natureza, sendo as fontes principais: decomposição de solos e rochas, dissolução de gipso e anidrita, chuvas e agricultura. O Relatório Técnico FAPESB - Determinação do Índice de Qualidade Natural das Águas Subterrâneas – IQNAS (Negrão, 2007), elaborado com base nos dados de análises físicoquímicas de amostras de água subterrânea de poços tubulares do estado da Bahia, do banco de dados da CERB, aponta que 17% dos poços analisados apresentam teores de sulfato acima do limite permitido pela legislação (250 mg/L). Os aquíferos cristalino e calcário apresentam os maiores percentuais de poços com teores elevados de sulfato, variando entre 0 até 1900 mg/L. Observa-se que no aquífero cristalino 92% das águas sulfatadas ou cloretadas são impróprias para consumo humano. Como as variações naturais de qualidade das águas subterrâneas são pequenas, características diferentes daquelas esperadas indicam a presença de anomalias.
CARTOGRAFIA DAS BACIAS HIDROGEOLÓGICAS USANDO OS MÉTODOS POTENCIOMÉTRICO E GRAVIMÉTRICO – NORDESTE DO ESTADO DO PARÁ –
Authors: Freddo Filho Valmor José , De Souza Ferreira Hugo , De Assis Matos de Abreu Francisco
Published: April 2017

Na região nordeste do Pará, entre os meridianos 48º15’20” WGr a 46º38’25” WGr e paralelos 0º35’11” S a 01º25’32” S, residem 3,7 milhões de habitantes (IBGE, 2014), e nela predomina o déficit de água para uso humano, em área urbana e rural. Utilizando-se dos métodos potenciométrico e gravimétrico, com suporte de SIG, buscou-se definir as bacias hidrogeológicas do aquífero livre Barreiras e estabelecer correlações com as bacias hidrográficas presentes nessa região. O mapa potenciométrico foi elaborado a partir de 576 poços cadastrados pelo Projeto SIAGAS, da CPRM e o mapa gravimétrico extraído do Projeto Geologia e Recursos Minerais do Estado do Pará (CPRM, 2008). Os resultados obtidos da interpolação, entre o mapa potenciométrico e o gravimétrico, mostram a posição dos divisores hidrogeológicos. Observou-se que ocorre concordância entre o divisor da bacia hidrográfica e o da bacia hidrogeológica, com exceção de duas pequenas áreas, destacadas no mapa de bacias hidrogeológicas, nas quais o fluxo das águas subterrâneas rasas não acompanha as configurações da superfície do terreno, ultrapassando divisores topográficos e os limites das bacias hidrográficas. A esta discordância entre os divisores das bacias hidrográficas e hidrogeológicas atribuem-se variações litológicas, condicionantes tectônicos ou até a presença de rocha cárstica, próxima a superfície.
HIDROQUÍMICA E COMPORTAMENTO SAZONAL DAS ÁGUAS SUBTERRÂNEAS DA PLANÍCIE ALUVIONAR DA EEcMG – MOGIGUAÇÚ.
Authors: Dos Santos Corrêa Waldilene , Ernesto Bernardo Ayer Joaquim , Yoshinaga Pereira Sueli
Published: April 2017

– O presente estudo aborda uma análise hidroquímica e o comportamento sazonal das águas subterrâneas da planície aluvionar da Estação Ecológica de Mogi-Guaçú, São Paulo – Brasil. A concentração dos teores de íons dissolvidos é maior no período de estiagem, ocasionado provavelmente pela baixa pluviosidade e o aumento da evaporação e, diminuem no período chuvoso devido a influência das precipitações pluviométricas e a lixiviação dos sedimentos, corroborado pelas médias baixas de CE e STD. Em função do predomínio dos íons bicarbonato e cálcio, as águas são classificadas como bicarbonatadas cálcicas, com uma possível evolução química para águas bicarbonatadas sódicas. Em geral são águas de recarga pluviométrica, de rápida circulação através das rochas bem lixiviadas, pH levemente ácido e muito pouco mineralizadas.
MODELAGEM COMO FERRAMENTA PARA AVALIAÇÃO DO IMPACTO DE DERRAMAMENTOS DE GASOLINA COM ETANOL NA ZONA VADOSA
Authors: Offemann Skowronski Marilia , Xavier Corseuil Henry , Guiguer Jr Nilson
Published: April 2017

O aumento mundial da utilização do etanol como combustível puro ou misturado com a gasolina tem causado preocupações quanto aos possíveis impactos que possam ser causados em casos de derramamentos. Um dos pontos críticos debatidos está associado à infiltração e distribuição do etanol na subsuperfície. Um experimento de campo com a liberação de 200 L de uma mistura contendo 85% (v/v) de etanol e 15% (v/v) de gasolina (E85) na zona não saturada à 1,60 m do nível freático foi realizado em Florianópolis com o objetivo de investigar a transferência de etanol na zona vadosa em região com elevados índices pluviométricos e variação do nível da água. Neste trabalho será utilizada a modelagem, através do modelo FEFLOW, a fim de avaliar os impactos deste derramamento na zona vadosa.
QUANTIFICAÇÃO E AVALIAÇÃO DA VULNERABILIDADE NATURAL À CONTAMINAÇÃO DAS ÁGUAS SUBTERRÂNEAS DA SUBBACIA HIDROGRÁFICA JACARÉ-PEPIRA/SP.
Authors: Da Silva Tanajura Douglas , Benedito Baptista Leite Claudio
Published: April 2017

As águas subterrâneas representam aproximadamente 98% da água doce disponível adequada ao consumo humano. Não obstante este seja um recurso de difícil acesso e relativa proteção natural, há diversas atividades antrópicas com potencial de contaminação dos aquíferos suscetíveis. A vulnerabilidade das águas subterrâneas é uma propriedade intrínseca do meio físico e representa a facilidade ou dificuldade de um contaminante hipotético migrar verticalmente da superfície do terreno ao aquífero. O objetivo deste trabalho foi aplicar o método DRASTIC para quantificação da vulnerabilidade intrínseca das águas subterrâneas nas formações aquíferas Piramboia, Botucatu, Serra Geral, Adamantina, Itaqueri e Depósito Aluvionares, presentes na Sub-Bacia Hidrográfica Jacaré-Pepira (componente da UGHRI-13). Para o método DRASTIC Padrão foi encontrada vulnerabilidade 48,96% Moderada, 44,14% Baixa e 6,90% Alta 9 (não ocorrendo Vulnerabilidade Muito Alta). Para DRASTIC Pesticidas, obteve-se vulnerabilidade 53,54% Moderada, 37,27% Alta, 4,72% Muito Alta e 4,47% Baixa. Considerando-se os custos e tempo necessários para remediação de aquíferos, propõe-se a utilização do mapeamento da vulnerabilidade intrínseca do meio físico em avaliações preliminares frente a instalação de novos empreendimentos.