bluuebunny/crossref_metadata_2025 huggingface dataset:
Ferromagnetic activated carbon from cassava (Manihot dulcis) peels activated by iron(III) chloride: Synthesis and characterization
Authors: Ndongo Gervais Kounou , Nsami Ndi Julius , Mbadcam Ketcha Joseph
Published: November 2021

Ferromagnetic activated carbon (FAC) was prepared through impregnation of cassava peel with FeCl3 (3.75%) solution and pyrolyzed at 800 °C. Samples were characterized using iodine number, methylene blue number, X-ray fluorescence, Fourier transformation infrared, X-ray diffraction (XRD), scanning electron microscopy (SEM) coupled to energy dispersive X-ray spectroscopy, elemental analysis and N2 adsorption for surface area determination. The proximate analysis of cassava peel showed that the moisture content, fixed carbon, ash content, and the volatile matter were 3.52%, 82.97%, 4.97%, and 8.54%, respectively. The prepared FAC had a BET surface area of 405.9 m2/g, pore size of 2.03 nm and total pore volume of 0.11 cm3/g. The SEM analysis showed the presence of both micro and mesopores on the FAC sample. The XRD pattern of FAC showed the presence of characteristic peaks of magnetite–maghemite, confirming that the prepared material is ferromagnetic. According to the experimental results, the cassava peels are considered as appropriate raw material for FAC preparation.
Bona Sforca ir Lietuvos Didžioji Kunigaikštystė: Jogailaičių dinastijos stiprinimas
Authors:   , Leonavičiūtė-Gecevičienė Rasa
Published: November 2021

Bona Sforza and the Grand Duchy of Lithuania: strengthening of the Jagiellonian Dynasty
Динаміка низькоенергетичної лазерної плазми олова
Authors: Чучман М.П. , Месарош Л.В. , Шуаібов О.К.
Published: November 2021

Вивчення початкових етапів розширення ерозійної лазерної плазми олова проведено методом емісійної спектроскопії з високим часовим розділенням. Досліджено часові залежності заселеності збуджених станів атомів та іонів олова. Проведено оцінку часів рекомбінації іонів, встановлено залежності від часу для температури і концентрації електронів лазерної плазми на відстанях 1 і 7 мм від мішені.
Autism Spectrum Disorder
Authors: Kuo Alice
Published: November 2021

Key Points

Autism spectrum disorder (ASD) is a neurodevelopmental condition characterized by social communication difficulties and restrictive or repetitive behaviors and interests.Early behavioral intervention has been demonstrated to improve some developmental outcomes.According to the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition, the diagnosis of ASD is made clinically and is not dependent on any specific instrument or tool.Educational advocacy may be necessary as a child with ASD progresses through school, to ensure that services match appropriate educational goals as the child ages.Transition planning can ensure that services are not dropped when an adolescent with ASD becomes a young adult.Neurodiversity is an important framework for supporting adults with ASD to have meaningful roles in society.
Failure to Thrive
Authors: Adam Henry M.
Published: November 2021

Key Points

Bright Futures prefers the term pediatric undernutrition to failure to thrive. Thorough history and physical examination are the keys to diagnosis, with laboratory evaluation most often not helpful. Comprehensive feeding and social histories are key. Detailed anthropometric measurements over time are critical. The severity of the child’s condition dictates the approach to treatment, which should focus on nutritional rehabilitation, parental education, and behavioral intervention. Although most children with mild undernutrition do well with adequate follow-up, more severely affected children need aggressive interventions to mitigate developmental, behavioral, and social morbidity.
Hypotonia
Authors: Adam Henry M.
Published: November 2021

Key Points

Hypotonia is distinct from weakness, although the two are often confused. It is not itself a diagnosis, and its underlying condition must be identified. It can result from pathological changes anywhere along the neural pathway from the brain to the muscle. Children with hypotonia often benefit from multidisciplinary care.
Joint Pain
Authors: Tsao Ronald
Published: November 2021

Key Points

Concerning red-flag signs and symptoms for joint pain include ill appearance, spiking fevers, pinpoint bony tenderness, nocturnal bone pain, unexplained bruising, and inability to bear weight.A red, warm, swollen, and tender joint may represent septic arthritis and is a medical emergency that should be evaluated as soon as possible.A joint effusion is never normal and warrants further evaluation.In the well-appearing patient with nonsignificant joint pain, it is usually fine to try conservative therapy first with strict precautions of returning if pain worsens or does not improve after 1 week of conservative therapy.
Macrocephaly
Authors: Adam Henry M.
Published: November 2021

Key Points

Accurate measurement of head circumference and assessment of the pattern of head growth are fundamental. Family history of genetic, neurologic, and developmental disorders can direct further evaluation. Examination must include thorough neurologic evaluation, especially for signs of raised intracranial pressure, attention to possible dysmorphic features and congenital anomalies, and careful developmental assessment. Parents and siblings with large heads who are otherwise normal are reassuring.
Microcephaly
Authors: Adam Henry
Published: November 2021

Key Points

Microcephaly is a physical finding, not a diagnosis.Can be either congenital (present at birth) or acquired (develops postnatally).Careful measurements with proper technique plotted on the appropriate growth chart (World Health Organization, Centers for Disease Control and Prevention, or special population) are essential.Thorough history and physical examination are key to distinguishing syndromic from isolated microcephaly.
Vaginal Discharge
Authors: Watt Mridula B.
Published: November 2021

Key Points

Vaginal discharge is caused by infection, inflammation, or changes in the vaginal flora. Vaginal discharge in the prepubertal child can be caused by infection, congenital abnormalities, trauma, or dermatologic conditions. Nonspecific vaginitis is the most common gynecologic problem in the prepubertal child. Prepubertal hypoestrogenic tissues are more susceptible to local irritants, foreign bodies, and infections. Most common causes of vaginitis in postpubertal women are bacterial vaginosis and vaginal candidiasis (Candida vulvovaginitis). Laboratory documentation of etiology of vaginal discharge is mandatory prior to treatment. Target treatment to etiology.
Down Syndrome
Authors: Duan Susan
Published: November 2021

Key Points

Occurs in approximately 1 in 730 live births and incidence closely related to age of mother.Caused by chromosomal abnormality trisomy 21 with 3 copies of chromosome 21 or, less commonly, with translocation to another chromosome.Most individuals have intellectual disability (varying degrees) as well as characteristic physical features.Can be diagnosed prenatally or with chromosome analysis after birth.Requires close care and coordination in early infancy and throughout childhood and adulthood because of increased prevalence of numerous other health issues, such as congenital heart disease, gastrointestinal anomalies, thyroid disease, celiac disease, and sleep apnea.
Hemoglobinopathies and Sickle Cell Disease
Authors: Kamat Deepak M.
Published: November 2021

Key Points

Inherited hemoglobin disorders account for most common single-gene defect in humans.Thalassemias are caused by mutations in the globin gene cluster, resulting in a decrease in globin chain synthesis while structural hemoglobinopathies usually result from a point mutation in the α- or β-globin gene that causes a functional abnormality.High-performance liquid chromatography has become the test of choice for the diagnosis of thalassemias and hemoglobinopathies because it reliably separates different hemoglobins.Newborn screening has helped with early diagnosis and management, thus decreasing morbidity and improving longevity.Blood transfusion, and appropriate use of iron chelating agents are mainstay of the treatment. Use of appropriate antibiotic prophylaxis starting from the neonatal period and appropriate vaccinations have decreased morbidity and improved survival in patients with sickle cell disease.
Disorders of Sex Development
Authors: Weimer Amy
Published: November 2021

Key Points

Disorders of sex development (DSDs) are congenital conditions in which development of chromosomal, gonadal, or anatomical (genital) sex is atypical for that expected for a male or female.Most DSDs are caused by genetic mutations in hormone metabolism or action or in gonadal development.The evaluation for a suspected DSD in the newborn period involves a detailed gestational and family history, as well as a detailed examination of genitalia.Late or atypical pubertal development, or fertility concerns, may indicate an undiagnosed DSD.Care through a specialized multidisciplinary program is optimal, but pediatricians have an important role in providing resources and psychosocial support and in navigating family discussions.
Plagiocephaly
Authors: DeWitt Thomas G.
Published: November 2021

Key Points

If preventive interventions are not effective, helmet therapy is the preferred treatment but must be initiated before 12 months of age. Positional plagiocephaly should be differentiated from craniosynostosis with ultrasound being helpful. Torticollis is a common cause of plagiocephaly.
Sports Medicine
Authors: Tsao Ronald
Published: November 2021

Key Points

A joint effusion is never normal and requires further evaluation and imaging.Athletes should not be allowed to play sports while still exhibiting symptoms of a concussion.Athletes should be asymptomatic for at least 24 hours after being diagnosed with a concussion before starting a return-to-play protocol preferably under the supervision/direction of the physician, physical therapist, or athletic trainer.The athlete should ideally be pain free with normal range of motion and no swelling before they are allowed to practice without restrictions and play in competition.
Croup (Acute Laryngotracheobronchitis)
Authors: Retzke Jessica
Published: November 2021

Key Points

Viral croup is an age-specific viral syndrome characterized by laryngeal and subglottic edema that primarily affects infants and children between 6 months and 3 years of age. The 3 hallmark signs of croup are hoarseness, cough, and stridor. Parainfluenza types 1, 2, and 3 are the most common viruses causing croup. Croup is diagnosed clinically, and laboratory/imaging studies are not necessary. Treatment is supportive. One of dexamethasone 0.6 mg/kg either intramuscularly or orally has been found to be very effective.
Sleep Disturbances
Authors: Adam Henry
Published: November 2021

Key Points

Sleep problems occur in 25% or more of children younger than 5 years and in approximately 80% of children with special needs.Most sleep problems can be successfully managed in the primary care setting.A directed history is the major initial diagnostic tool.Sleep disturbances can be categorized asBehavioral insomniasSleep-related breathing disordersCircadian rhythm disordersParasomniasSleep-related movement disordersHypersomnia
Fetal Alcohol Syndrome
Authors: Kamat Deepak M.
Published: November 2021

Key Points

FASD is a continuum of physical, growth, and neurobehavioral abnormalities that occur as a result of prenatal exposure to alcohol and other disorders in FASD include: Partial fetal alcohol syndrome (PFAS)Alcohol-related birth defects (ARBD)Alcohol-related neurodevelopmental disorder (ARND)Diagnosis of FAS and other FASD is established by history and physical examination.Early recognition and treatment is crucial for better outcomes.Multidisciplinary team approach is recommended for management.
Local food consumption during the covid-19 pandemic
Authors: Ghali-Zinoubi Zohra
Published: November 2021

The influence of intrinsic quality, health consciousness, environmental awareness, local support, and proximity of process on consumers’ intention to consume local food during the COVID-19 pandemic was tested, with food availability as a moderator. Online survey results were analyzed using a two-step structural equation modelling (SEM). Health consciousness was the major reason for consuming local food. Intrinsic quality and proximity of process were also significant drivers. Local support and environmental awareness have little impact on the intention to purchase local food. This study contributes to knowledge regarding the main factors driving local food consumption during a health crisis, providing directions.
Analysis of the relationship between innovation, CO2 emission and renewable energy in Turkey
Authors: İnançlı Selim , Torusdağ Mustafa
Published: November 2021

Due to rapid technological development and increase in economic activities, environmental problems such as global warming and climate change, CO2 emission, environmental pollution are among significant global issues. In recent years, Eco-innovations, which are intended to benefit the environment and contribute to environmental sustainability, bring energy by saving technology, adding a new dimension to the concept of innovation as well as bringing its environmentalist face to the fore. In this study, the relationship between innovation, CO2 emissions and renewable energy for the 1990-2019 period for Turkey was examined and analyzed with Bayer-Hanck (2012) cointegration test together with Toda-Yamamoto (1995) and Hacker-Hatemi-J (2006) causality tests. According to Bayer-Hanck (2012) cointegration test, it was concluded that the variables are cointegrated in the long run. In line with the overlapping findings of the causality analyses of Toda Yamamoto (1995) and Hacker-Hatemi-J (2006), it was concluded that there is a one-way causality relationship from CO2 emissions to renewable energy consumption.
İçsel ve dışsal Covid-19 korkusunun uzaktan calışmanın faydası üzerindeki etkileri: Türk finans sektöründen bir örnek
Authors: Özen Ercan , Hamarat Bahattin
Published: November 2021

2020 yılı başında salgına neden olan Covid-19 virüsü tüm dünyada korkuya neden olmuş, ekonomik ve sosyal yaşam üzerinde derin izler bırakmıştır. Bu çalışmada, finans sektöründe çalışanların Covid-19 korku düzeyi ile uzaktan çalışmadan algıladıkları fayda düzeyi arasındaki bağlantı incelenmekte ve çalışanlara ilişkin demografik faktörlerin algılanan fayda üzerinde farklılık yaratıp yaratmadığı araştırılmaktadır. 458 finans sektör çalışanı ile yapılan çevrim içi anket uygulamasından elde edilen veriler CHAID yöntemi ile analiz edilmiştir. Bulgular, finans sektör çalışanlarının Covid-19 korku düzeyinin yüksek olduğunu, artan Covid-19 korku ile birlikte uzaktan çalışmanın algılanan faydasının arttığına işaret etmektedir. Ancak, uzaktan çalışmanın faydasını yüksek bulanların oranının, faydayı düşük bulanlara göre gözle görülür biçimde belirgin olmadığı anlaşılmaktadır. Uzaktan çalışmanın algılanan faydasının demografik özelliklere göre farklılaşmakta olduğu görülmüş ve uzaktan çalışmanın kalıcı olması konusunda yeterli destek oluşmadığı anlaşılmıştır. Bulgular, finans sektörü ile politika yapıcılar ve akademisyenler için veri oluşturacak sonuçlar içermektedir.
Lost in Translation: Narrative Salience of Fear > Hope in Prevention of COVID-19
Authors:   University of South Alabama, Peterson Holly L , Zanocco Chad ,   Stanford University, Smith-Walter Aaron ,   University of Massachusetts Lowell
Published: November 2021

Using short, policy-image-like narratives, we explore the relationship between narrative agreement and narrative impacts in the case of COVID-19 in the US. Building upon previous research which identified attention narratives focusing on problems “stories of fear” and those focusing on solutions “stories of hope,” we use a narrative survey experiment of the general public (n=1000) to test the salience of problem and solution narratives and if they impact agreement with Center for Disease Control (CDC) prevention guidelines. Our findings are 1) fear story agreement is partisan but hope story agreement is not 2) fear story is the more salient of the two, 3) narrative agreement for both fear and hope were related to CDC safety guideline agreement, but were partisan, and 4) exposure to neither narrative impacted likelihood to agree with the guidelines as compared to a control group. Our findings are consistent with previous work indicating a Democratic party preference for stories of fear, where Democrats were more likely to support policy action. While we find that agreement with our narratives and guidelines is related, neither narrative treatment successfully altered support for CDC guidelines, suggesting a potential limit for the influence of narratives to either change or reorder existing preferences in highly salient and partisan issue areas like COVID-19 and suggesting a need for more research into the dynamics of narrative attention.
Construction and validation of an instrument for assessing the functionality of individuals with schistosomiasis
Authors: Oliveira Andréa Costa de , Lima Shirley Verônica Melo Almeida , Lopes-Sousa Álvaro Francisco , Farias Neto Jader Pereira de , Araújo Karina Conceição Gomes Machado de
Published: November 2021

ABSTRACT Objectives: to construct and validate an instrument for assessing the functionality of individuals with schistosomiasis. Methods: methodological study, developed in three stages: 1) construction of the instrument and its association with categories of the International Classification of Functionality, which the study used to elaborate the questions; 2) validation of content, performed by judges experts in the subject; 3) application of the instrument by the test-retest technique in the population with schistosomiasis in 14 days. The study used the correlation coefficient kappa to calculate the degree of agreement between the judges kappa. Results: in its final version, the instrument consists of 27 items, 9 of which are from the Body functions component, 6 from Body structures, 4 from Activity and participation, and 8 from Environmental factors. Conclusions: the constructed instrument has a biopsychosocial approach, considering four components of the ICF, besides presenting good validity and interobserver reliability.
Low-laser light therapy in venous ulcer healing: a randomized clinical trial
Authors: Bavaresco Taline , Lucena Amália de Fátima
Published: November 2021

ABSTRACT Objectives: to compare the effect of adjuvant low-laser light therapy versus conventional treatment alone on venous ulcer healing. Methods: this is a randomized clinical trial with 40 patients randomized equally to a control group (topical and compressive treatment) and intervention group (adjuvant low-laser light therapy). Outcomes of interest were Wound Healing: Secondary Intention and Tissue Integrity: Skin & Mucous Membranes, as described in the Classification of Nursing Outcomes/NOC. Results: groups with similar sociodemographic and clinical characteristics. Eighty-two ulcers were assessed, with an average duration of 1 to 5 years, in 1,066 nursing consultations, with a statistically significant difference in the time and number of healed ulcers (intervention group). There was a significant improvement in the nursing outcomes under study and in eight clinical indicators. Conclusions: low-laser light therapy improves and reduces tissue regeneration time, contributing to advances in wound treatment.
The dynamics of industrial geographic distribution: evidence from Brazil (2002-2014)
Authors: ROCHA ROBERTA DE MORAES , ARAÚJO JOSÉ EWERTON SILVA
Published: November 2021

ABSTRACT The geographical distribution of Brazilian industries changed between 2002 and 2014, and it was more significant for some industries. Based on Dumais et al. (2002), we explore the dynamics of these changes by a decomposition of the employment variation and concentration index for manufacturing industries grouped by technological intensity, and we identify the direction of the locational movements of the firms among microregions. In general., the results indicate that between 2002 and 2014, there was a trend of convergence among the microregions’ participation in industrial employment, contributing to industrial deconcentration in the country, with the exception of the group of high-technology industries, which became more concentrated. Components of the life cycle of industries, especially the growth of employment generated by new industries in non-metropolitan microregions, are identified as main propelling of this evidence. In general., the results are consistent with the importance of agglomeration economies over historic accidents to explain the industrial concentration in Brazil between 2002 and 2014.
Taxa de câmbio real e produtividade da indústria brasileira no longo prazo: teoria, modelo e evidências para o período recente
Authors: SOUZA KAYO CÍCERO QUIRINO DE , SILVA GUILHERME JONAS C. DA
Published: November 2021

RESUMO O objetivo deste trabalho é analisar a relação da taxa de câmbio real com a produtividade da indústria nos curto e longo prazos. Para testar a hipótese novo-desenvolvimentista de que um nível maior da taxa de câmbio real está relacionado com um maior dinamismo da produtividade da indústria, desenvolve-se um modelo matemático desta relação teórica e estima-se econometricamente um Modelo Não Linear Autorregressivo de Defasagem Distribuída (NARDL). Os resultados encontrados são inéditos, já que demonstram a existência de uma relação positiva entre uma desvalorização real da taxa de câmbio efetiva e o crescimento da produtividade do trabalho da indústria brasileira no longo prazo. Ademais, o trabalho conseguiu captar pioneiramente uma assimetria existente do efeito da (des)valorização sobre a produtividade, ou seja, as estimações mostraram que a desvalorização afeta positivamente mais a produtividade da indústria brasileira quando comparado aos efeitos negativos de uma valorização sobre a produtividade.
Potential kidney damage associated with the use of remdesivir for COVID-19: analysis of a pharmacovigilance database
Authors: Silva Nayara Aparecida de Oliveira , Zara Ana Laura de Sene Amâncio , Figueras Albert , Melo Daniela Oliveira de
Published: November 2021

Abstract: The U.S. Food and Drug Administration (FDA) has stated that the prescription of remdesivir should be cautious for patients with estimated glomerular filtration rate (eGFR) < 30 and some studies reported risk of adverse renal events. The available information on the renal safety profile for remdesivir is limited, thus we analyzed the renal and urinary adverse reactions attributed to remdesivir reported in a large open pharmacovigilance database. We obtained reports of remdesivir and other drugs used to treat COVID-19 (tocilizumab, hydroxychloroquine, lopinavir/ritonavir) registered by September 30 2020, from the U.S. Food and Drug Administration Adverse Event Reporting System (FAERS). We analyzed the reporting odds ratios (RORs) for reports of adverse renal and urinary events for remdesivir and other drugs. We found 2,922 reports with remdesivir registered in FAERS for COVID-19. Among these, 493 renal and urinary adverse effects (16.9%) were reported. The most frequent events were acute kidney injury (338; 11.6%), renal impairment (86; 2.9%), and renal failure (53; 1.8%). Versus hydroxychloroquine, lopinavir/ritonavir, or tocilizumab, the use of remdesivir was associated with an increased chance of reporting renal and urinary disorders regardless of gender and age of patients (2.53; 95%CI: 2.10-3.06). The ROR remained significant when we restricted the analysis to hydroxychloroquine (4.31; 95%CI: 3.25-5.71) or tocilizumab (3.92; 95%CI: 2.51-6.12). Our results reinforce this already reported signal, emphasizing that it could be extremely useful for health professionals who prescribe this new antiviral to treat COVID-19, mainly knowing its low efficacy.
Prevalence and inequalities in contraceptive use among adolescents and young women: data from a birth cohort in Brazil
Authors: Machado Adriana Kramer Fiala , Gräf Débora Dalmas , Höfs Fabiane , Hellwig Franciele , Barros Karoline Sampaio , Moreira Laísa Rodrigues , Crespo Pedro Augusto , Silveira Mariângela Freitas
Published: November 2021

Monitoring trends of contraceptive use and identifying the groups with less coverage are needed to guide public policies and make them more efficient. But, in Brazil, recent data about these aspects are limited. This study aimed to investigate the prevalence of contraceptive use and its inequalities during adolescence and early adulthood. Data from the 1993 Pelotas birth cohort, Rio Grande do Sul State, Brazil, were used. At 15, 18 and 22 years, respectively, 335, 1,458 and 1,711 women reported having started their sexual lives and were included in analysis. Prevalence and 95% confidence intervals were obtained to describe the most used contraceptive methods. Inequalities in modern contraceptive use were evaluated according to wealth index, scholastic backwardness and ethnicity. In all follow-ups, more than 80% of women used at least one modern method. The use of barrier methods decreased with age; at 22 this prevalence was 36.3%. Such use concomitant with other modern methods was lower than 50% in all follow-ups. We observed inequalities in the use of modern contraceptive methods, mainly in barrier methods used with other modern methods. These findings may contribute and improve the public policies in family planning.
Marginal gaps and internal voids after root-end filling using three calcium silicate-based materials: A Micro-CT analysis
Authors: Jardine Alexander Pompermayer , Rosa Ketsia Fernanda Váz , Matoso Felipe Barros , Quintana Ramiro Martins , Grazziotin-Soares Renata , Kopper Patricia Maria Poli
Published: November 2021

Abstract This study evaluated the 3D quality of root-end filling, assessing the presence (volume and percentage) of marginal gaps and internal voids formed after retro-filling with three calcium silicate-based materials: MTA Angelus (Angelus Soluçoes Odontologicas, Londrina, PR, Brazil), Biodentine (Septodont Ltd., Saint Maur-des-Faussés, France) and Neo MTA Plus (Avalon Biomed Inc., Bradenton, Florida, US). Thirty human, extracted, single rooted teeth were used. Orthograde root canal treatment, root resection (3mm shorter than the apex) and retrograde cavity preparation with ultrasonic tips were performed. Teeth were divided into 3 groups (n =10 each) following a stratified randomization according to the initial volume of the root-end cavity. After retrofilling, samples were stored for 7 days. Then, two rounds of micro-CT scans were performed: soon after root-end preparation (with the cavity still empty) and 7 days after root-end filling. Marginal gaps, internal voids volume (mm3 and %), as well as, the overall defects (sum of gaps and voids) were evaluated. Statistics compared the three groups in relation to those defects. There was not statistical difference between groups regarding the marginal gaps (P≥ 0.05), the internal voids (P≥ 0.05), and the overall defects (P≥ 0.05). Median (mm3) and % of overall air-entrapment defects (gaps and/or voids) was: 0.004mm3 and 1.749% for MTA Angelus, 0.018mm3 and 6.660% for Biodentine, and 0.012mm3 and 4.079% for Neo MTA Plus. All materials had gaps and/or voids. No differences were found between MTA Angelus, Biodentine and Neo MTA Plus.
Evaluation of tissue in repair with natural latex and / or hyaluronic acid in surgical bone defects
Authors: Issa João Paulo Mardegan , Santos Neto Otavio Marino dos , Macedo Ana Paula , Gonzaga Miliane Gonçalves , Pereira Yamba Carla Lara , Feldman Sara
Published: November 2021

Abstract This study evaluated the bone repair in surgical defects of rats treated with hyaluronic acid (HA) associated or not with Hevea brasiliensis fraction protein (F-1). Bone defect were created in 15 albino Wistar rats divided into 3 groups (n=5): Control group (1) - blood clot; HA group (2) - 0.5% hyaluronic acid; HAF1 group (3) - 0.1% F-1 protein fraction dissolved in 0.5% hyaluronic acid. After 4 weeks, the animals were euthanized and the bone repair was evaluated through histomorphometric analysis, zymography and immunohistochemistry. The neoformed bone area did not show a significant difference (p = 0.757), but there was a tendency for bone trabeculation to increase in the groups HA and HAF1. For immunohistochemically analysis, there was a difference in vascular endothelial growth factor (VEGF) labeling (p = 0.023), being higher in the groups HA and HAF1 than the control group. No significant difference in bone sialoprotein (BSP) (p = 0.681), osteocalcin (p = 0.954), however, significant difference in platelet endothelial cell adhesion molecule-1 (CD-31) (p = 0.040), with HAF1 group being significantly lower than the control. For zymographic analysis, there was no significant difference for metalloproteinase-2 (MMP-2) (p = 0.068), but there was a tendency to increase MMP-2 in the HA group. Despite the influence on angiogenic factors and the apparent tendency for greater trabeculation in the HA and HAF1 groups, there was no significant difference in the area of newly formed bone tissue in the analyzed period.
Fluoride bioavailability on demineralized enamel by commercial mouth rinses
Authors: Valdivia-Tapia Astrid Carolina , Botelho Juliana Nunes , Tabchoury Cinthia Pereira Machado , Pedro Ricomini-Filho Antonio , Giacaman Rodrigo Andrés , Cury Jaime Aparecido
Published: November 2021

Abstract The ability of mouth rinses, available in the international market, to form reaction products on demineralized enamel (bioavailability test) was evaluated in vitro. Nine mouth rinses purchased in Chile were evaluated; eight formulated with NaF (one containing 100 µg F/mL and seven containing 226) and one with Na2FPO3 (226 µg F/mL as ion F). Demineralized enamel slabs (n=15 per mouth rinse) were sectioned; one half was subjected to the assigned mouth rinse treatment for 10 min and the other half was used to obtain baseline data. Loosely bound and firmly bound fluoride formed on enamel were determined with an ion-specific electrode and the values were expressed in µg F/cm2. The concentration of fluoride and the pH of the mouth rinses were previously determined. Concentrations of loosely bound and firmly bound fluoride formed on enamel were independently analyzed by ANOVA and Tukey’s test (α=5%). The loosely bound and firmly bound fluoride concentrations (µg F/cm2) formed ranged from 3.2 to 36.2 and 0.4 to 1.7, respectively. Loosely bound fluoride formed on enamel was significantly more effective in discriminating the effect of different commercial mouth rinses than firmly bound fluoride. Mouth rinses with 226 ppm F as NaF and low pH presented significantly greater bioavailability of fluoride on enamel than those with higher pH or lower NaF concentration. The mouth rinse with Na2FPO3 showed low reactivity. Although further studies are necessary, the findings showed that commercial fluoride-containing mouth rinses have important variations in enamel fluoride bioavailability, which may result in differences on anticaries efficacy.
Espiritualidade nos cuidados paliativos de pacientes oncológicos
Authors: Marques Thayná Cristhina Soares , Pucci Silvia Helena Modenesi
Published: November 2021

Resumo A espiritualidade como ferramenta aos cuidados paliativos de pacientes oncológicos vem sendo cada vez mais abordada no contexto acadêmico, como integrante da qualidade de vida. Este estudo analisa de que forma a espiritualidade pode influenciar positivamente no tratamento oncológico e em cuidados paliativos, e contribuir com a melhora da qualidade de vida destes pacientes. Foram selecionados 29 artigos nacionais que evidenciaram a espiritualidade como variável positiva no enfrentamento aos cuidados paliativos, tanto para paciente quanto familiares e equipe multidisciplinar. A espiritualidade é utilizada como ferramenta pela equipe de cuidados paliativos como auxiliadora na compreensão do impacto causado pelo diagnóstico e cuidado integral do paciente, possibilitando ao profissional psicólogo intervir sobre o paciente e sua rede. Ao paciente e sua família, a espiritualidade atua como estratégia de enfrentamento e conforto. Este estudo encontrou limitações acerca de pesquisas com pacientes infantis/adolescestes e sua família.
Influência da Fase Sigma na Resistência à Cavitação em Solda de Reparo de Aço Inoxidável Austenítico AISI 309L
Authors: Lima Israel Ricardo de , Brunatto Silvio Francisco , Henke Sérgio Luiz
Published: November 2021

Resumo: O reparo por soldagem de regiões erodidas por cavitação em rotores de turbinas hidráulicas é muitas vezes realizado utilizando como metal de adição o aço inoxidável austenítico AISI 309L. Ciclos térmicos provenientes dos sobrepasses, bem como a realização de tratamento térmico de alívio de tensão após a soldagem, induzem a formação de fase sigma na microestrutura do material depositado. Neste trabalho são apresentados resultados de ensaios de cavitação realizados conforme a norma ASTM G32-10 obtidos em depósitos de soldas do aço AISI 309L, com e sem fase sigma resultante de tratamentos térmicos. Os resultados do ensaio de cavitação revelaram que a fase sigma ocasionou a redução de 78% do período de incubação e o aumento de 30% da taxa de erosão máxima em comparação ao material sem esta fase. Infere-se que a redução do período de incubação estaria, a princípio, relacionada a diferenças de propriedades mecânicas entre a fase sigma e a matriz austenítica. Por outro lado, constatou-se que a taxa de erosão máxima seria resultante da presença da fase sigma a qual promoveu a redução da tenacidade do material
Estratégias para o Desenvolvimento de Revestimentos Resistentes ao Desgaste: Uma Revisão
Authors: Pintaude Giuseppe
Published: November 2021

Abstract This review presents the possible strategies to increase the wear resistance of hardfacing alloys based on metallic matrix and second hard phase’s coupled design. As the wear resistance is not an intrinsic property of material, the results of many wear tests are discussed in light of the interaction between mechanical properties and wear severity, which is dependent on the microstructure. These strategies are based on the hardness increase, considering the kind and size of the second hard phase, the fracture toughness, and the dilution level of hardfacing. The guidelines provided for designing better the hardfacing alloys for usual abrasion conditions depending on the volume fraction of the second hard phase.
Isolation and characterization of bacteria associated with silkworm gut under antibiotic-treated larval feeding
Authors: Javaid A. , Hussain M. , Aftab K. , Malik M. F. , Umar M. , Iqbal T.
Published: November 2021

Abstract The impact of antibiotics on growth, cocoon production was assessed in addition to isolation and characterization of bacteria associated with silkworm gut of infected larvae. Larval rearing was maintained at recommended conditions of temperature and humidity. Silkworm larvae showing abnormal symptoms were collected from the control group and dissected for gut collection. Bacteria were isolated from the gut content by spreading on agar plates and incubated at 37 °C for 48 hrs. Bacterial identification and phylogenetic analysis were carried out by 16S rRNA gene sequencing. The isolated bacteria were subjected to antimicrobial susceptibility test (disc diffusion methods) by using Penicillin (10 µg/mL), Tetracycline (30 µg/mL), Amoxicillin (25 µg/mL), Ampicillin (10 µg/mL), and Erythromycin (15 µg/mL). All isolated strains showed positive results for the catalase test. We isolated and identified bacterial strains (n = 06) from the gut of healthy and diseased silkworm larvae. Based on the 16S rRNA gene sequence, isolated bacteria showed close relation with Serratia, Bacillus, and Pseudomonas spp. Notably, 83.3% of strains were resistant to Penicillin, Tetracycline, Amoxicillin, Ampicillin, and Erythromycin but 16.6% showed antibiotic susceptibility to the above-mentioned commonly used antibiotics. Silkworm larvae fed on penicillin-treated leaves showed significant improvement in larval weight, larval length, and cocoon production. Significantly higher larval weight (6.88g), larval length (5.84cm), and cocoon weight (1.33g) were recorded for larvae fed on leaves treated with penicillin as compared to other antibiotics. Isolated bacterial strains showed close relation with Serratia spp., Bacillus spp. and Pseudomonas spp.
Detection of the main multiresistant microorganisms in the environment of a teaching veterinary hospital in Brazil
Authors: Sfaciotte Ricardo A.P. , Parussolo Leandro , Melo Fernanda D. , Bordignon Giseli , Israel Naiara D. , Salbego Fabiano Z. , Wosiacki Sheila R. , Ferraz Sandra M.
Published: November 2021

ABSTRACT: Contamination of the veterinary hospital environment with multiresistant pathogens endangers not only hospitalized animals, but also the workplace safety of veterinarians and nurses, animal guardians and, when in case of a teaching hospital, veterinary students. The objective of this study was to map the main points of bacterial contamination of a veterinary teaching hospital in Brazil to identify multiresistant microorganisms and their antimicrobial resistance genes. Samples were collected from 39 different locations of a veterinary school hospital which comprised a pool according to each hospital environment. In certain environments, more than one pool has been collected. All samples were collected in quadruplicates for the selective isolation of the main multiresistant microorganisms: methicillin-resistant Staphylococcus (MRS), vancomycin resistant Enterococcus (VRE), cephalosporinases and/or extended-spectrum beta-lactamase-producing Gram-negative bacteria (ESBL) and Carbapenemase-producing (CP). After isolation and identification of isolates, multiplex-PCR reactions were performed to detect the main genes for each microorganism and antimicrobial susceptibility tests with the main antibiotics used for each bacterial group according to CLSI. Of the 39 veterinary teaching hospital sites collected, all (100%) had at least one of the microorganisms surveyed, and 17.95% (n=7) of the sites were able to isolate the four pathogens. From the 94 pools collected, it was possible to isolate MRS in 81.91% (n=77), VRE in 12.77% (n=12), cephalosporinases and/or ESBL in 62.77% (n=59) and CP in 24.47%. (n=23). Regarding MRS, the mecA gene was detected in all isolates. All isolated VREs were identified as Enterococcus faecalis and presented the vanA gene. Regarding cephalosporinases and/or ESBL, 89.83% (n=53) of the isolates presented the blaTEM gene, 57.63% (n=34) the blaOXA-1 gene, 37.29% (n=22) blaCTX-M gene from some group (1, 2, 9 ou 8/25) and 20.34% (n=12) the blaSHV gene. It was possible to identify the main microorganisms responsible for causing nosocomial infections in humans (VRE, MRS, ESBL and CP) in the veterinary hospital environment, suggesting a source of infection for professionals and students of veterinary medicine, placing a high risk for public health.
PUBLIC VALUE THROUGH TECHNOLOGIES DEVELOPED WITH OPEN GOVERNMENT DATA: THE LOVE SERENADE OPERATION CASE
Authors: COUTINHO EDUARDO D. , FREITAS ANGILBERTO S.
Published: November 2021

ABSTRACT Purpose: To understand the public value that the website Operação Serenata de Amor [Love Serenade Operation], based on open government data, can generate for society. Originality/value: Researchers are investigating public value generation through digitally transformed public services, i.e., public value directly generated by the government. However, the literature needs a better understanding of this phenomenon through digital technologies, based on open public data, developed by non-governmental actors, such as the Operação Serenata de Amor website. Design/methodology/approach: The study adopted a qualitative approach to understand and describe the public value generated by Operação Serenata de Amor. The data were collected through citizen comments about the website’s initiatives on social media and in articles published on the internet. The data were analyzed through content analysis. Findings: The Operação Serenata de Amor generated public value by doing, facilitating, and stimulating social control. It was also identified that the site added value to society by increasing citizens’ ability to exercise social control. However, this work was limited to analyzing data collected on the internet. In future studies, researchers may collect data through interviews with citizens to understand, with more details, the public value generated by the website.
Jesse Shera no Brasil? contribuições para a biblioteconomia brasileira na década de 1950
Authors: Paiva Talita de Cássia Lima , Silva Diana Rocha da
Published: November 2021

RESUMO Este estudo apresenta as contribuições de Jesse Hauk Shera para a configuração da Biblioteconomia no cenário brasileiro a partir da década de 1950, focalizando a análise no conteúdo e ideais disseminados no curso ministrado no Brasil. A pesquisa caracteriza-se como histórico-documental, destarte, foram contatadas instituições responsáveis pela guarda da memória da Biblioteconomia brasileira para obtenção de fontes primárias, entre estes periódicos da década de 1950. No conjunto de fontes secundárias estão trabalhos científicos de observadores da Biblioteconomia brasileira e participantes deste momento histórico, que forneceram informações para reconstituir o período. Como resultado pode-se afirmar que Jesse Shera atuou no saber e fazer biblioteconômico da década de 1950 por meio de discussões e produções em torno do campo biblioteconômico. Sua influência é comprovada na educação de bibliotecários, em argumentações de dilemas e estudos na epistemologia da Biblioteconomia. Conclui-se que Shera foi e ainda é um expoente desta ciência e sua contribuição no Brasil foi significativa para uma teoria e prática com vieses norte-americano de pragmatismo e interação social. Sua produção bibliográfica se apresenta aberta a investigações no estudo sobre este teórico e no percurso da Biblioteconomia no país.
The work of the nursing team in the operating room and the health-related damages
Authors: Madrid Bruna Pires , Glanzner Cecília Helena
Published: November 2021

ABSTRACT Objectives: to analyze the work of the nursing team in the operating room and the physical, psychological, and social damage related to occupational health. Methods: quantitative study conducted from November 2017 to January 2018 in the operating room of a university hospital. The sample consisted of 160 nursing workers who responded to the Work-Related Damage Assessment Scale. Data were analyzed using the Student’s t test, One-Way analysis of variance (ANOVA) followed by Pearson’s chi-square test. Results: psychological and social damage were assessed by workers as low risk by 86.8% (139) and 87.4% (140), respectively. Physical damage was considered a medium risk by 57.9% (93) of the sample. Conclusions: the results direct the attention of managers and the occupational medicine service to physical damage, preventing them from getting worse and thus promoting improvements in working conditions and occupational health.
HEGEMONÍA Y EMANCIPACIÓN, ELEMENTOS REPRESENTACIONALES DEL OBJETO SOCIAL COLEGIO
Authors: Chaves-Yepes Juan Carlos
Published: November 2021

RESUMEN La escuela, como espacio de relaciones o como establecimiento educador por la transmisión de conocimientos, mantiene una relación directa con las familias. Este estudio problematiza la relación escuela / familia en grados escolares superiores de secundaria en el contexto de la Ciudad de Pasto - Colombia. El objetivo es explorar las representaciones sociales que sobre el colegio tienen padres y madres de familia de estudiantes de secundaria. Se cuenta con información de 143 personas vinculadas a instituciones educativas públicas. Con el uso de un cuestionario de preguntas abiertas se indagó la dimensión de información y la dimensión de actitud del contenido representacional. Los resultados muestran tres categorías: desempeño de los docentes, enseñanza y desempeño de estudiantes como parte del contenido representacional, las cuales median en la imagen del colegio. Estos resultados permiten inferir que existen elementos tendientes a la conformación de representaciones sociales hegemónicas y representaciones sociales emancipadas.
ASSOCIAÇÃO DE MEDICAMENTOS CONTROLADOS EM CRIANÇAS: IMPACTOS PARA O DESENVOLVIMENTO DO PSIQUISMO
Authors: Franco Adriana de Fátima , Tabuti Eliane , Tuleski Silvana Calvo
Published: November 2021

RESUMO O artigo teve como objetivo quantificar o número de crianças matriculadas no primeiro ciclo do Ensino Fundamental de um município do interior do estado do Paraná que fazem uso de dois ou mais medicamentos controlados, identificar as classes terapêuticas as quais pertencem, suas possíveis consequências e os impactos para o desenvolvimento do psiquismo infantil. A pesquisa tem como referencial a Psicologia Histórico-Cultural. Trata-se de uma pesquisa de campo. A coleta de dados foi realizada por meio de censo e utilizou-se de um questionário preenchido pelo responsável no ato de matrícula. Os resultados apontam que 812 crianças consomem medicamentos de uso controlado e 87 crianças (10,7%) fazem uso de dois ou mais medicamentos controlados em associação. Conclui-se que o medicamento não irá promover o desenvolvimento psíquico e o uso em associações poderá provocar danos. Destaca-se que o ensino poderá promover as funções tipicamente humanas, tais como domínio da autoconduta e atenção voluntária.
ATUAÇÃO EM PSICOLOGIA ESCOLAR: INTERVENÇÕES COM PROFISSIONAIS SOBRE EDUCAÇÃO SEXUAL
Authors: Leite Fernanda , Alberto Maria de Fátima Pereira , Santos Denise Pereira dos
Published: November 2021

RESUMO O objetivo deste artigo é relatar uma experiência da atuação em Psicologia Escolar em uma escola pública da cidade de João Pessoa. Ancora-se nos pressupostos da abordagem Histórico-Cultural de Vigotski, considerando o psicólogo como mediador das relações e dos conhecimentos. Em uma perspectiva de atuação preventiva e institucional, a intervenção foi realizada por profissionais da Psicologia junto a professores, tutores e oficineiros da escola, e o foco foi a educação sexual, visando instrumentalizá-los sobre o tema para possibilitar uma abordagem adequada às demandas das crianças. A experiência mostrou que a formação com os profissionais da escola tem o potencial de promover novas reflexões e possibilidades de atuação em sala de aula. Além disso, corroborou a perspectiva do papel do profissional de Psicologia como mediador das reflexões, dos processos formativos e de mudanças nas metodologias, ainda que nesse processo haja obstáculos e dificuldades.
OS DESAFIOS E AS ESTRATÉGIAS DA PSICOLOGIA ESCOLAR NO ENFRENTAMENTO DO BULLYING
Authors: Mezzalira Adinete Sousa da Costa , Fernandes Thatyanny Gomes , Santos Cyntia Maria Loiola dos
Published: November 2021

RESUMO Este é um relato das atividades práticas de um projeto extensionista realizado em uma escola Estadual de Ensino Fundamental em Manaus (AM), tendo como objetivo problematizar com os professores a temática do bullying na escola. Foram desenvolvidas quatro oficinas: (1) Identificando a concepção de bullying no cotidiano escolar; (2) O que as pesquisas acadêmicas têm falado sobre o bullying? (3) Como combater a dinâmica do bullying em contexto escolar?; (4) Construindo coletivamente ações de enfrentamento ao bullying. Os principais resultados encontrados foram: (a) ações de enfrentamento à violência dirigidas, principalmente, aos sujeitos envolvidos na situação; (b) relação estreita entre bullying e preconceito; (c) judicialização do processo educativo; e, (d) ação coletiva como prática crítica para o enfrentamento do bullying. Diante disso, concluímos que o psicólogo escolar deve problematizar e possibilitar o debate sobre o bullying e suas formas de intervenção no espaço educativo.