Pengembangan Lembar Kerja Peserta Didik (LKPD) Berbasis Contextual Teaching and Learning (CTL)

Pendidikan merupakan kegiatan yang membudayakan manusia mudah atau membuat orang dapat hidup berbudaya sesuai dengan standar yang dapat diterima oleh masyarakat. Tujuan penelitian ini adalah untuk menganalisis kelayakan lembar kerja peserta didik (LKPD) berbasis Contextual Teaching and Learning (CTL) pada materi pencemaran Tanah kelas VII A SMP Negeri Alok. LKPD yang dikembangkan dinyatakan layak untuk digunakan berdasarkan hasil oleh tiga para pakar yaitu pakar materi memperoleh nilai 89,5 %, pakar bahasa memperoleh nilai 94% pakar media memperoleh nilai 85% dengan kategori sangat layak. Rata-rata 2 nilai uji coba pada kelas kecil dan uji coba kelas besar yaitu: 97% dan 93,5% oleh guru dengan kategori sangat layak sedangkan 72% dan 90% oleh peserta didik dengan kategori  layak dan sangat layak

Performance of Gallus gallus domesticus Induced by Turmeric (Curcuma longa L.) Powder before Puberty

The lack of use of turmeric powder by farmers to increase the production of native chicken eggs such as increasing egg weight. The purpose of the research was to determine the effect of turmeric powder supplement (Curcuma longa L.) on the weight of native chicken eggs (Gallus gallus domesticus) that had been induced on standard feed before entering the pebertas period. The design of this study is to use a complete randomized design with a total of 3 treatments. Treatment consists of the first; chicken that is not given turmeric powder supplement (P0). Second; native chickens are given turmeric powder supplements at a dose of 216 mg/ chicken /day (P1). Third; is a native chicken given turmeric powder supplement with a dose of 324 mg/ chicken /day. Egg weight data is obtained from the results of measurements made every day when all chickens have laid eggs. One month's measurement data is taken from 28 days of measurement. All measurement data is analyzed with analysis of variance (ANOVA). If the data is influential, it is then tested with a Duncan test with a trust of 95 % (α>0.05).  Supplementation of turmeric powder mixed in daily standard feed before entering puberty can have an effect on increasing the weight of free-range chicken eggs (Gallus gallus domesticus). There was a significant difference in free-range chickens that were given turmeric powder supplements at a dose of 324 mg/ chicken /day (483.6 mg) compared to chickens that did not receive turmeric powder supplements (405.4 mg)

COMPETENCIA OCUPACIONAL Y RENDIMIENTO DIFERIDO DE LOS ESTUDIANTES UNIVERSITARIOS

Objetivo: determinar la relación de la competencia ocupacional con el rendimiento diferido de los estudiantes universitarios. Metodología: se contó con una muestra de 50 estudiantes con riesgo “crítico y alto” de deserción de la facultad de Salud de la Universidad de Pamplona, pertenecientes al programa de Alertas tempranas. El trabajo se fundamentó en el abordaje de investigación cuantitativo, de manera que la información muestra una perspectiva más amplia de la competencia ocupacional y el rendimiento diferido. Se utilizó la recolección y el análisis de los datos para contestar la pregunta de investigación y probar la hipótesis establecida previamente, también se confío en la medición numérica, el conteo, y el uso frecuente de la estadística, para establecer con exactitud los factores que conllevan al bajo rendimiento de los estudiantes universitarios. Resultados: se apoyaron estrategias mediante la creación de un programa denominado “la participación es el camino que nos conduce al éxito” que favoreció la participación ocupacional y, por tanto, mejoró el rendimiento académico de la población estudiada. Conclusiones: el programa estuvo orientando al desarrollo de varias etapas de fortalecimiento, generando beneficios al permitir la exploración y determinación de intereses, el desarrollo de habilidades sociales y la búsqueda de significado y crecimiento personal de la competencia ocupacional

Implementasi Biology Club I di SMA Karitas Watuneso, Kecamatan Lio Timur, Kabupaten Ende

Biology learning is defined as material that is difficult to experience biological concepts. The biology learning offered must have a role as something easy to implement. The collaboration of games and biology is one of the concepts to introduce biology that plays a game. Therefore, my Biology Club Team took the initiative to provide experiences and emphasize the deep character of biology to motivate students. This research aims to integrate biology material and games at Karitas Watuneso High School in Biology Club I activities. We collaborated direct instruction, demonstration, and discussion methods. The implementation of Biology Club I at Karitas Watuneso High School received a positive response with the highest level of satisfaction starting from the Zoology Games, Botany Games, and Microbiology Games. The level of significance of Biology Club I received the highest score, followed by material understanding and activity satisfaction. Pembelajaran biologi diartikan sebagai materi yang sulit. Pembelajaran biologi memiliki peran untuk menyederhanakanmateri yang dipelajari. Kolaborasi permainan dan biologi merupakan salah satu konsep untuk mengenalkan biologi dalam permainan. Oleh karena itu, kelompok Biologi berinisiatif untuk memberikan pengalaman dan mengedepankan karakter biologi yang dalam sehingga dapat memotivasi siswa. Tujuan dari penelitian ini adalah untuk mengintegrasikan materi dan permainan biologi di SMA Karitas Watuneso dalam kegiatan Biology Club I. Metode ini hasil kolaborasi instruksi langsung, demonstrasi, dan metode diskusi. Penyelenggaraan kelompok Biologi I di SMA Karitas Watuneso mendapat respon positif dengan tingkat kepuasan tertinggi masing-masing mulai dari Zoology Games, Botany Games dan Microbiology Games. Tingkat kebermaknaan kelompok Biologi I memperoleh skor tertinggi, diikuti oleh pemahaman materi dan kepuasan kegiatan

Facility for Removal and Determination of Labile Tritium

Tritium bonded to electrophilic atoms like O, S, N or halogens can spontaneously exchange places with hydrogen from the water. These tritium species are exchanged even at a very low temperature and have the generic name `labile'. In this paper, a new facility for the removal and quantitative determination of labile tritium is shown. The working principle is as follows: tritium sources are brought in contact with protic solvent, leading to a spontaneous exchange of labile tritium, then the obtained tritiated solvent is extracted by distillation. The new facility was tested for removal efficiency of labile tritium from labeled compounds and wastes with different compositions

Performance of the CORB (Confusion, Oxygenation, Respiratory Rate, and Blood Pressure) Scale for the Prediction of Clinical Outcomes in Pneumonia

8 páginasBackground Community-acquired pneumonia (CAP) is a common cause of morbidity and mortality due to misdiagnosis and inappropriate treatment approaches. Objective To assess the performance of the CORB score in subjects with CAP for predicting in-hospital mortality, death within 30 days of admission, and requirement for invasive mechanical ventilation (IMV) and vasopressor support. Methods A retrospective, cohort study with diagnostic test analysis of CORB and CURB-65 scores in subjects with CAP according to ATS criteria was undertaken. An alternative CORB score was estimated by replacing SpO2 ≤90% by the SpO2/FiO2 ratio. Crude and adjusted odd ratios (AOR) were calculated for each variable. The area under the receiver operating characteristics curve (AUROC) was constructed for each score, and outcomes were analyzed. AUROCs were compared with the DeLong test, considering a p value <0,05 statistically significant. Results From 1,811 subjects who entered the analysis, 15.1% (273/1,811) died in hospital, 8.78% required IMV (159/1,811), and 9.77% (177/1,811) needed vasopressor support. CORB had an AUROC of 0,660 (95% CI: 0,623–0,697) for in-hospital mortality; an AUROC of 0,657 (95% CI: 0,621–0,692) for 30-day mortality; an AUROC of 0,637 (CI 95%: 0,589–0,685) for IMV requirement; and an AUROC of 0,635 (95% CI: 0,589–0,681) for vasopressor support. CORB performance increases when the SpO2/FiO2 ratio <300 is used as oxygenation criterion in the prediction of requirement for IMV and vasopressor support, with AUROC of 0,700 (95% CI: 0,654–0,746; p < 0.001) and AUROC of 0,702 (95% CI: 0,66–0,745; p < 0.001), respectively. CURB-65 score presents an in-hospital mortality AUROC of 0,727 (95% CI: 0,695–0,759) and 30-day mortality AUROC of 0,726 (95% CI: 0,695–0,756). Conclusions CORB score has a good performance in predicting the need for IMV and vasopressor support in CAP patients. This performance improves when the SpO2/FiO2 ratio <300 is used instead of the SpO2 ≤90% as the oxygenation parameter. CURB-65 score is superior in the prediction of mortality

Glutathione amperometric detection based on a thiol-disulfide exchange reaction

Abstract A method based on a thiol-disulfide exchange reaction is proposed for glutathione detection. The method utilises a reaction between glutathione and an excess of the disulfide cystamine which produces an equimolar concentration of the thiol cysteamine. This latter is then detected at Prussian Blue modified screen printed electrodes at an applied potential of 200 mV versus Ag/AgCl. First the cysteamine analytical parameters were optimised, resulting in a detection limit of 10 −6 mol l −1 and a linear range up to 10 −4 mol l −1 . Reproducibility (R.S.D. = 7%, n = 6) and stability (more than 30 measurements with the same electrode) were satisfactory. Then the reaction between the disulfide cystamine and the thiol glutathione was optimised and a pH of 7.4 with a concentration of cystamine of 10 −2 mol l −1 was chosen as the best conditions in terms of reaction rate and sensor sensitivity. Glutathione was then measured under the optimised conditions giving a detection limit of 2 × 10 −6 mol l −1 and a linear range up to 5 × 10 −4 mol l −1 . Blood samples were also tested in order to determine the recovery of the method. Recoveries between 92 and 103% were observed for glutathione concentrations in blood ranging from 0.5 to 3 × 10 −3 mol l −1

Prueba de ejercicio cardiopulmonar en militares colombianos con trauma torácico de guerra

14 páginasIntroduction: There are few publications related to cardiopulmonary stress tests in soldiers wounded in combat, and the various complications cause war trauma. Objective: To describe the cardiopulmonary variables in patients with war thoracic trauma submitted to stress tests. Methods: A descriptive study was carried out between 2010 and 2016, at the Hospital Militar Central de Bogotá, D.C., Colombia. The study population consisted of 27 patients with a history of war-derived thoracic trauma, who were submitted to cardiopulmonary stress tests. The variables of age, sex, symptoms, oxygen consumption, cardiopulmonary variables measured by spirometry, type of surgery, trauma and weapon were explored. Results: A total of 27 participants were included. Mean oxygen consumption peak ml / min was 2 891,8 (SD: 621,86), oxygen consumption peak mL/kg/min 43,25 (DS: 9,72), forced vital capacity pre-bronchodilator (L) 4,5 (DS: 1, 3) and post-bronchodilator (L) 4,3 (DS: 1,01). Exploratory analysis found significant differences among those who had a high velocity firearm wounds against other types of weapons.Introducción: Existen pocas publicaciones relacionadas con las pruebas de esfuerzo cardiopulmonar de soldados heridos en combate, y las diversas complicaciones que puede ocasionar el trauma de guerra. Objetivo: Describir las variables cardiopulmonares en soldados con trauma torácico de guerra, sometidos a pruebas de esfuerzo. Método: Se realizó un estudio descriptivo, entre los años 2010 - 2016, en el Hospital Militar Central de Bogotá, D.C., Colombia. La población de estudio estuvo constituida por 27 pacientes con antecedente de trauma torácico derivado de la guerra, quienes fueron sometidos a pruebas de esfuerzo cardiopulmonar. Se exploran las variables edad, sexo, síntomas, consumo de oxígeno, variables cardiopulmonares medidas por espirometría, tipo de cirugía, trauma y arma. Resultados: El consumo de oxígeno pico medio ml/min fue 2 891,8 (DE: 621,86), consumo de oxígeno pico mL/kg/min 43,25 (DS: 9,72), capacidad vital forzada prebroncodilatador (L) 4,5 (DS: 1, 3) y posbroncodilatador (L) 4,3 (DS: 1,01). El análisis exploratorio encontró diferencias significativas entre quienes tenían heridas por arma de fuego de alta velocidad, y heridas por otros tipos de armas. Conclusión: En pacientes con antecedentes de trauma de guerra, el consumo de oxígeno pico ml/min, oxígeno pico mL/kg/min y capacidad vital forzada, es menor que en población sana; aparentemente, el tipo de herida por arma de fuego de alta velocidad afecta en mayor medida a estas variables evaluadas por las pruebas de esfuerzo cardiopulmonar