bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reproducción en cautiverio de vizcaína Curimata mivartii con extracto pituitario de carpa
Authors: Montes-Petro César , Atencio-García Víctor , Estrada-Posada Ana , Yepes-Blandón Jonny 
Published: March 2020

Con el objetivo de reproducir vizcaína Curimata mivartii, ejemplares de dos años de edad (n= 54), mantenidos en estanques en tierra (0,1 pez/m2) fueron inducidos con extracto pituitario de carpa (EPC) (Argent, USA) a razón de 6 mg/Kg de peso para las hembras en dos aplicaciones (10 % y 90% con 12 horas entre aplicación); mientras que los machos fueron inducidos con 4,8 mg/Kg EPC en dosis única. Antes de la inducción hormonal a cada hembra le fue realizada biopsia para verificar su estado de maduración gonadal. La muestra de ovocitos fue tratada con solución Serra (Chemí, Colombia) y después de tres minutos, con la ayuda de un estereoscopio de luz, (Leica, EZ4 W, Alemania) en objetivo de 4x, se determinó posición de la vesícula germinal (céntrico, migrando, periférico, sin núcleo). El análisis de la biopsia ovárica mostró que las hembras se encontraban en maduración final. Los machos inducidos se encontraron en fase de espermiación; los cuales a ligera presión abdominal liberaron líquido seminal. Se estimó el índice de ovulación, fecundidad (absoluta y relativa), diámetro de los ovocitos y volumen seminal. El porcentaje de fertilidad fue estimado a las cuatro horas post-eclosión (hpe) y el porcentaje de eclosión fue estimado a las 10 hpe. Las hembras ovularon entre 5 y 6 horas (28±1,0°C) e inmediatamente los huevos fueron obtenidos por extrusión, así como el semen. La fecundidad absoluta fue de 178331,6±28773,7 ovocitos/hembra y la relativa 137,7±19,6 g ovocitos/Kg de hembra. El diámetro de los ovocitos recién desovados fue de 687,2±42,8 μm. La fertilidad fue de 90,7±1,4% y la eclosión de 85,3±1,5%. Los resultados permiten concluir que EPC a dosificación de 6mg/Kg de peso es un buen inductor de la reproducción de vizcaína, con alto índice de ovulación y altos porcentajes de fertilidad y eclosión.
Comparación fisicoquímica y biológica entre efluentes de la producción de trucha arcoíris y la condición limnológica del Lago Guamuez, departamento de Nariño
Authors: López-Macías Jorge N. , Salas-Benavides Julbrinner 
Published: March 2020

El estudio de lagos como fuentes de recursos naturales de diversa índole constituye una preocupación de entidades que regulan su manejo en conservación y producción sostenible en interacción de factores bióticos y abióticos que afectan el ecosistema. En consecuencia, éste proyecto puede generar información científica permanente para un plan de ordenamiento de la cuenca del lago Guamuez en cumplimiento de compromisos internacionales y nacionales en la conservación del humedal La Cocha. La presente investigación mediante 12 muestreos periódicos en cinco estaciones: 1. Intiyaco (E1), zona superficial (A) y zona profunda (B); las siguientes estaciones se ubicaron a partir de E1; estación 2. 50 metros (C); 3. 100 metros (D); 4. 150 metros (E) y 5. Centro del lago (F), análisis de varianza, prueba de normalidad y correlación, pretendió evaluar el efecto de las explotaciones acuícolas en jaulas flotantes sobre las variables fisicoquímicas y biológicas del lago Guamuez. La condición limnológica, presentó diferencias significativas entre aguas superficiales y profundas (respectivamente NH-N y DB, con P-PO, DQ, Colift y Coliff); el pH y NTU en A y B, difieren de los demás sitios evaluados. Existe mayor concentración (P<,05) de OD y %O en estación 3. En el año 2008 las estaciones 1 y 5 señalan mayor media en la estimación de OD, pH, Dur y DB y para el año 2018, aumentó los parámetros limitantes hacia el centro del lago (NH-N, P-PO, NTU y Colift); así, el 70% de los parámetros de evaluación en el proyecto Intiyaco, aumentaron su estimación media entre los años 2008 y 2018 (DB, OD y %O). La concentración de E. coli presenta mayor media (P<0,05) en B y difiere de A, C, D, E y F; mientras fosfatos y Colift difieren (P<0,05) entre A y las estaciones B, C, D, E y F.
The Class II Carriere Motion appliance:
Authors: Areepong Daniel , Kim Ki Beom , Oliver Donald R. , Ueno Hiroshi 
Published: March 2020

ABSTRACT

Objectives
To determine three-dimensional treatment changes produced by the Class II Carriere Motion appliance (CMA) in Class II adolescent patients with Class I and Class II skeletal relationships.

Materials and Methods
The sample included 59 adolescents (16 boys and 43 girls) with unilateral or bilateral Class II molar and bilateral Class II canine relationship. They were divided into group 1 with skeletal Class I (N = 27; ANB 2.90° ± 1.40°; 13.30 ± 1.53 years) and group 2 with skeletal Class II (N = 32; ANB 6.06° ± 1.64°; 13.26 ± 1.76 years). Cone beam computed tomography images were traced with Invivo software pretreatment (T1) and post-CMA usage (T2). The treatment changes in 36 measurements were calculated in each group, and the changes in 16 measurements were compared between them.

Results
In group 1 and 2, maxillary first molars underwent significant distal movement (1.92 mm ± 0.80 mm and 1.67 mm ± 1.56 mm, respectively) with distal tipping and rotation, maxillary canines underwent significant distal movement (2.34 mm ± 1.07 mm and 2.24 mm ± 1.91 mm, respectively) with distal tipping and rotation, and mandibular molars underwent significant mesial movement (–1.37 mm ± 1.23 mm and –2.51 mm ± 1.51 mm, respectively) with mesial tipping. Between the groups, there were significant differences in mandibular molar mesial movement and the U1-SN changes (P &lt; .05).

Conclusions
The CMA corrected Class II malocclusion through distal tipping and rotational movement of maxillary canines and molars and corrected mesial tipping of mandibular molars. Significantly more mandibular molar mesial movement and maxillary incisor flaring were observed in patients with skeletal Class II.
Influence of orthodontic appliance type on salivary parameters during treatment
Authors: Dallel Ines , Ben Salem Intidhar , Merghni Abderrahmen , Bellalah Wassim , Neffati Fadoua , Tobji Samir , Mastouri Maha , Ben Amor Adel 
Published: March 2020

ABSTRACT

Objectives
To evaluate the effect of orthodontic appliances on physicochemical, biochemical, and oxidative stress changes in salivary parameters during treatment.

Materials and Methods
A cohort study was conducted with 112 healthy patients. Salivary samples were taken at baseline, 1 month, and 9 months after placement of the orthodontic appliances used in treatment.

Results
A statistically significant difference was observed in certain examined salivary parameters, including enzymes, electrolytes, and oxidative stress markers.

Conclusions
The use of aligners had a lower prevalence of disturbing salivary parameters. Orthodontist must consider these changes to prevent the occurrence of white spot lesions.
Multilevel Variation in Diabetes Screening Within an Integrated Health System
Authors: Obinwa Udoka , Pérez Adriana , Lingvay Ildiko , Meneghini Luigi , Halm Ethan A. , Bowen Michael E. 
Published: March 2020

OBJECTIVE
Variation in diabetes screening in clinical practice is poorly described. We examined the interplay of patient, provider, and clinic factors explaining variation in diabetes screening within an integrated health care system in the U.S.

RESEARCH DESIGN AND METHODS
We conducted a retrospective cohort study of primary care patients aged 18–64 years with two or more outpatient visits between 2010 and 2015 and no diagnosis of diabetes according to electronic health record (EHR) data. Hierarchical three-level models were used to evaluate multilevel variation in screening at the patient, provider, and clinic levels across 12 clinics. Diabetes screening was defined by a resulted gold standard screening test.

RESULTS
Of 56,818 patients, 70% completed diabetes screening with a nearly twofold variation across clinics (51–92%; P &lt; 0.001). Of those meeting American Diabetes Association (ADA) (69%) and U.S. Preventive Services Task Force (USPSTF) (36%) screening criteria, three-quarters were screened with a nearly twofold variation across clinics (ADA 53–92%; USPSTF 49–93%). The yield of ADA and USPSTF screening was similar for diabetes (11% vs. 9%) and prediabetes (38% vs. 36%). Nearly 70% of patients not eligible for guideline-based screening were also tested. The USPSTF guideline missed more cases of diabetes (6% vs. 3%) and prediabetes (26% vs. 19%) than the ADA guideline. After adjustment for patient, provider, and clinic factors and accounting for clustering, twofold variation in screening by provider and clinic remained (median odds ratio 1.97; intraclass correlation 0.13).

CONCLUSIONS
Screening practices vary widely and are only partially explained by patient, provider, and clinic factors available in the EHR. Clinical decision support and system-level interventions are needed to optimize screening practices.
Particularities of Experimental Models Used to Induce Gastric Ulcer
Authors: Fulga Simona , Pelin Ana-Maria , Ghiciuc Cristina Mihaela , Lupușoru Elena Cătălina 
Published: March 2020

Abstract
Introduction: Gastric ulcer is one of the most common gastrointestinal diseases, therefore the constant interest for new treatments is due to adverse effects induced by current therapy. The restricted number of in vivo experimental models is a challenge for researchers. Objectives: Identifying the particularities of different types of experimentally induced gastric ulcer in laboratory animals to facilitate their choise for the study of new antiulcer drugs.
Material and method: A search in PubMed and Scopus using keywords ( “experimentally” AND “gastric ulcer” AND “rats/mice”) to include experimental studies with the description of local-induced changes. Review articles and in vitro studies were excluded.
Results and discussions: Experimental researches on new drugs for gastric ulcer use chemical or surgical methods to induce gastric lesions in rats. Non-steroidal anti-inflammatory drugs (NSAIDs) and acetic acid models to investigate antisecretory and cytoprotective effects; ethanol models evaluate cytoprotective and/or antioxidant effects; pylorus ligature models to evaluate the effects on the secretion of aggressive gastric factors (hydrochloric acid or pepsin). NSAIDs (indomethacin, acetylsalicylic acid or ibuprofen) inhibit cyclooxygenase activity, resulting from reduced mucus and bicarbonate secretion, decreased mucosal blood flow, alteration of microvascular structures, causing epithelial damage Ethanol enhances the proteolytic and hydrolytic action of hydrochloric acid and pepsin; in addition, stimulates the acid secretion and disruptes vascular endothelium. Pylorus ligature determines the accumulation of gastric acid resulting in gastric ulcers due to the autodigestion of the mucosa.
Conclusion: The knowledge of the mechanisms to induce experimental gastric ulcers is essential for choosing the model to evaluate new antiulcer agents.
Rare Laryngeal Kaposi’s Sarcoma: Case Report and Innovative Surgical Approach
Authors: Bogdan Popescu , Antoaneta Oancea Alina Lavinia , Gabriela Androne Roxana , Mihaela Arjoca Elena , Gabriel Berteșteanu Serban Victor 
Published: March 2020

Abstract
Kaposi’s sarcoma is an angioproliferative neoplasm that usually appears on the skin, but can also involve all organs and anatomic locations. The atypical manifestations of Kaposi’s sarcoma can mislead the diagnosis, which can result in a poor case management. The authors present a HIV-negative patient with Kaposi’s sarcoma with both usual and unusual locations such as the larynx, eyelids and bones. In the pre-therapeutic balance, we used NBI, which showed an intensely vascularized tumor in the larynx. The chosen method for treatment consisted in subtotal epiglotectomy performed under TransOral UltraSonic Surgery (TOUSS) approach. The use of TOUSS endoscopic surgery helped reduce the time of hospitalization, the patient did not need a nasogastric tube and was orally fed from the first postoperative day, with a better and faster functional recovery.
Temperament of Track Cyclists and Their Stress of During a Sports Performance
Authors: Samełko Aleksandra , Tomaszewski Grzegorz 
Published: March 2020

Abstract
The aim of the study was to evaluate the correlation between temperament and stress, to assess the stress level and perform comparative analysis of feeling of stress before and after the race. The test group consisted of 30 competitors from Mazovian cycling clubs between the ages of 15 and 16 (M = 15.5, SD = 0.50). Standard psychological questionnaires were used for the study. The level of stress was tested using the PSS 10 questionnaire by S. Cohen, T. Kamarck and R. Mermelstein. In addition, temperament was studied with Formal Characteristics of Behaviour – Temperament Inventory by Zawadzki and Strelau (1997). Measures were used to determine the constant predisposition of cyclists to feel the level of stress, as well as to show the intensity of stress during sports competitions (before and after the start). Statistical analyses carried out with the Wilcoxon test showed a significant difference between the initial and final value of the stress level as a condition in the subjects. It was found that in the same people, stress reached a higher average level after the race (M = 17.8, SD = 6) than before the performance (M = 11.83, SD = 5.9). The results show that the state of stress does not decrease after the start, as occurs with other variables (including emotional arousal). The results showed that stress measured before and after the start of a competition positively correlates with perseverance and emotional reactivity, while stress before the start negatively correlates with briskness. Observations from the analyses carried out may broaden the understanding of the phenomenon of stress, especially in aspects of sport competition and track cyclists.
Influence of Warm-Up Prior to Incremental Exercise Test on Aerobic Performance in Physically Active Men
Authors: Danek Natalia , Michalik Kamil , Hebisz Rafał , Zatoń Marek 
Published: March 2020

Abstract

Introduction.
The aim of the study was to verify the influence of warm-up before a ramp incremental exercise test with linearly increasing loads on the maximal values of physiological variables which determine performance.

Material and methods.
Thirteen healthy and physically active male students (age = 23.3 ± 1.5 years, body height = 179.1 ± 8.6 cm and body mass = 79.5 ± 9.1 kg) completed a cross-over comparison of two incremental exercise test interventions – an incremental exercise test with a 15-minute warm-up at an intensity of 60% of the maximal oxygen uptake obtained in the first incremental exercise test and the same test without warm-up.

Results.
The peak values of physiological variables were statistically significantly higher for the incremental exercise test with warm-up, the differences between tests being 2.66% for peak power output (p = 0.039, t = 2.312, ES = 0.24), 7.75% for peak oxygen uptake (p = 0.000, t = 5.225, ES = 0.56), 7.72% for peak minute ventilation (p = 0.005, t = 3.346, ES = 0.53) and 1.62% for peak heart rate (p = 0.019, t = 2.690, ES = 0.60).

Conclusions.
Warm-up before a ramp incremental exercise test resulted in higher values of maximal oxygen uptake, maximal minute ventilation, maximal heart rate and peak power output.
A rare case of sarcoidosis affecting the nasopharynx
Authors: Catana Iuliu Vlad , Maniu Alma , Ilies Roxana Flavia , Radeanu Doinel , Catana Andreea 
Published: March 2020

Abstract
Sarcoidosis is a rare condition, presenting with granulomatous lesions typically located in the lungs, spleen and lymph nodes. We present an atypical case of sarcoidosis, with an initial lesion located in the nasopharynx. The patient is a 38-year-old male, with the complaints of cephalalgia, nasal obstruction and hyposmia, detected during further examination with degenerative spinal modifications, prostate inflammation and lung-based sarcoidosis. A biopsy of the lesion located in the postnasal cavity revealed granulomatous origin. The patient underwent total endoscopic adenoid removal and radiofrequency-assisted bilateral turbinate reduction, with favourable post operatory evolution. Atypical localizations of sarcoidosis lesions must be considered in the case of unusual lesions, regardless of localisation.
Advantages of the open approach in sinonasal tract tumors with midfacial and suprastructure invasion
Authors: Vrinceanu Daniela , Banica Bogdan , Dumitru Mihai , Musat Gabriela 
Published: March 2020

Abstract

BACKGROUND. In case of rhinosinusal malignant tumors, it is important to have a unified and simple terminology. The suprastructure refers to the ethmoid sinus, the sphenoid sinus, the frontal sinus and the olfactory area of the nose. The mesostructure includes the maxillary sinus, excepting the orbital wall, and the respiratory part of the nose.

MATERIAL AND METHODS. We will present two clinical cases admitted and surgically treated in our department. The first one is a left-side suprastructure mass in a 39-year-old male patient, with a particular evolution. The second one is a left-side midfacial and suprastructure tumor with 3 prior negative biopsies in a 57-year-old patient. In both cases, we performed an external surgical approach.

DISCUSSIONS. For an external approach in mesostructure malignant tumors, we propose a combined approach using lateral nasal rhinotomies, sub-labial rhinotomies and midfacial degloving. The external approach in malignant tumors of the supra-structure is centred on a classical incision for the frontal sinus or a hemicoronal or coronal approach. There are some clear advantages of the open approach to be considered.

CONCLUSION. The advantages of the external approach are represented by a direct visualization and control of the tumor during the ablative time; a better control for negative margins; a better control of haemostasis; a better chance for en-bloc resection versus piece-meal resection.
Reuse Waste Material and Carbon Dioxide Emissions to Save Energy and Approach Sustainable Lightweight Portable Shelters
Authors: Alkhalidi Ammar , Zaytoun Yara Nidal 
Published: March 2020

Abstract
Despite their great significance, lightweight structures have poor thermal inertia. In order to enhance the thermal comfort inside such buildings, architects need lightweight thermal storage. In this paper a model was used to experimentally investigate Heating Load profiles in lightweight shelters. The profiles were created for the climate in Jordan, then simulated for other climate zones. The proposed design concept was used to create a replacement for a thermal mass in lightweight structures such as shelters; by combining passive solar gain with energy storage embodied within the shelter floor (thermal-floor) to absorb solar radiation. This shelter design decreased the Heating Load during the winter season by acting as heat storage that releases energy at night time after being exposed to solar radiation during the day. The passive design depends on shading elements and overhangs shades to control solar gain during different seasons to prevent overheating during the summer. An experimental investigation of this model was performed to validate the simulation results. Validated simulation results showed that the designed thermal-floor is 25 % of the total shelter’s floor area, which was crucial for obtaining favourable results. With CO2 as a thermal mass, heat load was reduced up to 68 % compared to a 20 cm concrete slab floor. The use of this thermal storage material yielded a reduction in annual heating demand by 85 kWh/m2.
PERAN MOTIVASI KERJA MEMEDIASI PENGARUH KEPEMIMPINAN TRANSFORMASIONAL TERHADAP KINERJA KARYAWAN
Authors: Sujana Ni Putu Ayu Shela Paramitha , Ardana I Komang 
Published: March 2020

The purpose of this study was to determine the role of work motivation in mediating the effect of transformational leadership on employee performance. This research was conducted at Samabe Bali Suites & Villas. The number of samples taken was 65 employees, with the method used was the saturated sample method. Data collection is done through interviews and questionnaires. Data analysis techniques used are path analysis (path analysis) and multiple analysis. Based on the results of the analysis found that transformational leadership has a positive and significant effect on employee performance. This shows that the better the transformational leadership carried out by the leader the employee's performance will increase as well. Transformational leadership has a significant positive effect on employee work motivation, this means the better leadership of a leader will increase employee motivation. Work motivation has a significant positive effect on employee performance, this shows that the better the work motivation provided, the better the employee's performance increases. Work motivation is positive and significant in mediating the effect of transformational leadership on employee performance.
Keywords: employee performance, transformational leadership, work motivation
ANÁLISE DE STAKEHOLDERS EM INDÚSTRIA DO SETOR PLÁSTICO: UMA APLICAÇÃO DA NORMA ABNT NBR ISO 14001:2015
Authors: Silva Flavia Cristina , Shibao Fabio Ytoshi , Dos Santos Mario Roberto , Barbieri José Carlos 
Published: March 2020

A última revisão da norma ISO 14001 sobre Sistemas de Gerenciamento Ambiental (SGA) incluiu a obrigatoriedade de que a organização reconheça as partes interessadas (stakeholders) em seu desempenho ambiental. Este estudo teve como objetivo identificar os stakeholders e hierarquizar sua influência sobre o desempenho ambiental de uma indústria de transformação de material plástico. Utilizou-se a abordagem de métodos mistos e dividiu-se a pesquisa em duas fases. A fase qualitativa consistiu na realização da pesquisa-ação e emprego da técnica de grupo focal para identificação dos stakeholders e suas necessidades e expectativas, e, em seguida, sua classificação. A fase qualitativa empregou o método AHP para a hierarquização dos stakeholders. No que concerne aos tipos de stakeholders, foram identificadas quatro classes: definitivos, dependentes, dominantes e facultativos e, dentre esses, cerca de 50% foram classificados como primários por exercerem influência direta sobre decisões e atividades da empresa. Em relação à prioridade de interesses, constatou-se que proprietários, clientes e órgãos governamentais receberam a atenção primária, enquanto a comunidade de entorno e os grupos ambientais ocuparam a posição menos relevante. As contribuições teórica e prática do estudo consistem, respectivamente, em um modelo de identificação e classificação dos stakeholders para o setor de transformação de material plástico e uma ferramenta de planejamento do SGA.