Concentration effects of selected insecticides on brain acetylcholinesterase in the common carp (Cyprinus carpio L.)

The differential inhibition of acetylcholinesterase (AChE) by organophosphate (OP) and carbamate (C) is followed by the distinct duration of exposure effect on common carp AChE. Hence, in the present study in vivo exposure period effect and in vitro concentration-response of chlorfenvinphos, chlorpyrifos diazinon, and carbofuran were investigated on Cyprinus carpio L. AChE. Individuals of 1-year-old carp were exposed for 96 h to different concentrations of insecticides- after which AChE activity was measured in the brain. The highest concentrations of carbofuran (2.44 mg • L-1)- chlorfenvinphos (2.9 mgL-1), and diazinon (2.5 mg.L-1) killed at] the test animals after only 4 h, although there was no statistically significant difference from the control group's brain AChE activity. The lowest concentration significantly inhibited brain AChE after 96 h. Chlorfenvinphos was the most potent inhibitor in vivo and chlorpyrifos the least active inhibitor after 96 h of exposure time. In vitro experimentation with the same pesticide indicated that several concentrations inhibited 50% of the AChE activity (I50) ranging from 4.1 x 10-7 to 8.12X 10-4 M in both single inhibitory action and joint inhibitory effect. The results suggest that in biomonitoring programs carp brain AChE can be a good diagnostic tool for chronic OP nd C pollution

The biodiversity of macroalgae in the coastal waters of Bahoi Village, West Likupang Sub-District, North Minahasa Regency

This study was carried out in coastal waters of Bahoi Village, West Likupang Sub-District, North Minahasa Regency with an objective of knowing the taxa composition of macroalgae through morphological studies. Data collection used exploring survey. Results found 8 species of macroalgae, consisting of 3 divisions, 3 classes, 5 orders, 6 families, and 6 genera.Keyword: Macroalgae, Bahoi Village.  ABSTRAKPenelitian ini dilakukan di perairan pesisir Desa Bahoi, Kecamatan Likupang Barat, Kabupaten Minahasa Utara dengan tujuan untuk mengetahui komposisi taksa makroalga melalui pendekatan morfologi. Pengambilan data dilakukan dengan menggunakan metode Survei Jelajah. Hasil penelitian menemukan 8 spesies, yang terdiri dari 3 divisi, 3 kelas, 5 ordo, 6 famili dan 6 genera.Kata Kunci: Makroalga, Desa Bahoi

Endovascular repair of bilateral popliteal artery aneurysm

The first report of a successful endovascular repair of a popliteal artery aneurysm was described in 1994. Since then, few series with not many cases have been published. Next, the authors describe two cases of successful endovascular repair of bilateral popliteal artery aneurysm.O primeiro relato de correção endovascular do aneurisma de artéria poplítea bem-sucedida foi descrito em 1994. Desde então, poucas séries e com apenas alguns casos foram publicadas. A seguir, os autores descrevem dois casos de correção endovascular de aneurisma de artéria poplítea bilateral realizada com sucesso.Universidade Estadual de CampinasSBACVUniversidade Federal de São Paulo (UNIFESP)UNIFESPSciEL

Endovascular repair of bilateral popliteal artery aneurysm

The first report of a successful endovascular repair of a popliteal artery aneurysm was described in 1994. Since then, few series with not many cases have been published. Next, the authors describe two cases of successful endovascular repair of bilateral popliteal artery aneurysm.O primeiro relato de correção endovascular do aneurisma de artéria poplítea bem-sucedida foi descrito em 1994. Desde então, poucas séries e com apenas alguns casos foram publicadas. A seguir, os autores descrevem dois casos de correção endovascular de aneurisma de artéria poplítea bilateral realizada com sucesso.30330

Efecto del cebo tóxico con trampa de melaza en el control de Elasmopalpus lignosellus Zeller

El presente trabajo de investigación tuvo como objetivo reducir la infestación de Elasmopalpus lignosellus Z. en el cultivo de caña de azúcar, con superficie bajo un sistema de riego por goteo, proponiendo como una nueva alternativa, el uso del cebo tóxico, que consiste en la mezcla de melaza diluida en agua y malathion, que es un insecticida órgano fosforado, y usando como testigo trampa de melaza con agua. Al realizar las evaluaciones de infestación de Elasmopalpus lignosellus, se obtuvieron niveles promedio para los cebos tóxicos a base malathion de 400, 500 y 600 ml/cilindro de 2,08%, 1,45%, 2,51% respectivamente y para el testigo 1,72%. La evaluación de la captura de adultos de Elasmopalpus lignosellus, en las trampas de melaza registró una mayor captura entre las semanas dos y tres con 7,36 y 7,60 individuos por trampa respectivamente, disminuyendo considerablemente hasta la semana ocho con 1,22 individuos por trampa, obteniendo un promedio de 4,05 individuos por trampa. No se evidencio diferencias significativas entre los tratamientos. La baja mortalidad de Elasmopalpus lignosellus por malathion, es debida a su biodegradación por causa de hongos, y por factores físico-químicos

PERTUMBUHAN ALGA COKELAT Padina australis Hauch DI PERAIRAN PESISIR, DESA KAMPUNG AMBON, KECAMATAN LIKUPANG TIMUR, KABUPATEN MINAHASA UTARA

Alga laut adalah bagian terbesar dari tumbuhan laut, namun dari segi morfologi tumbuhan ini mempunyai perbedaan dengan tumbuhan-tumbuhan yang ada di daratan. Alga merupakan tumbuhan tingkat rendah yang tidak memiliki perbedaan susunan kerangka seperti alat pelekat (holdfast), batang (stipe) dan daun (blade) meskipun wujudnya tampak seperti ada perbedaan, tetapi sesungguhnya merupakan bentuk thallus belaka. Pemanfaatan rumput laut di Indonesia sendiri dimulai sejak tahun 1920 yang digunakan secara tradisional sebagai makanan seperti lalap, sayur dan manisan. Akan tetapi dengan berkembangnya ilmu pengetahuan, pemanfaatan alga laut ke arah komersial untuk diekspor semakin meningkat. Hal ini dikarenakan kandungan kimia yang terdapat dalam alga laut seperti agar dan karaginan yang terdapat pada alga merah, algin pada alga cokelat serta alga hijau yang merupakan sumber karbonat. Salah satu jenis alga laut cokelat yaitu Padina. Pada tahun 2014, telah dikembangkan produk anti-ageing oleh PT APRO yang bekerja sama dengan CEVA (Centre d‟Etude et de Valorisation des Algues) di Pleubian, Perancis yang berasal dari Padina australis yang dipanen dari Kawasan Timur Indonesia. Tujuan penelitian ini adalah untuk melihat pertumbuhan alga cokelat Padina australis untuk menentukan waktu panen yang tepat untuk pengembangan budidaya

UMA EXPERIÊNCIA COM ENSINO DE PORTUGUÊS PARA ESTRANGEIROS NA REDE PÚBLICA DE CRICIÚMA

ResumoO presente artigo pretende realizar uma investigação acerca da atuação do professor escolar no acolhimento de alunos migrantes, localizados em um município no extremo sul catarinense, por conta de indagações que surgem em meio aos estudos do Programa Institucional de Bolsas de Iniciação à Docência (PIBID) realizados no período 2020/2021. Junto a esses estudos, mobilizaram-se teoricamente autores, os quais estão, neste trabalho, em articulação entre os conceitos de Bauman (2017), a respeito de movimentos migratórios e dinâmicas de ensino-aprendizagem  no contexto de Português como Língua de Acolhimento (PLAc). O estudo, portanto, é norteado pelo conceito de PLAc, conforme elaborado por Grosso (2010). Do ponto de vista metodológico, realizaram-se duas entrevistas: uma com a atual gestão da Secretaria da Educação e a outra com professora da rede pública, a fim de obter um panorama da situação de alunos migrantes matriculados na rede de Criciúma/SC no ano de 2021.Palavras-chave: Português como Língua de Acolhimento; Migração; Ensino-aprendizagem; Rede pública de ensino

High-Dose Once-Daily Thoracic Radiotherapy in Limited-Stage Small-Cell Lung Cancer: CALGB 30610 (Alliance)/RTOG 0538

PURPOSE: Although level 1 evidence supports 45-Gy twice-daily radiotherapy as standard for limited-stage small-cell lung cancer, most patients receive higher-dose once-daily regimens in clinical practice. Whether increasing radiotherapy dose improves outcomes remains to be prospectively demonstrated. METHODS: This phase III trial, CALGB 30610/RTOG 0538 (ClinicalTrials.gov identifier: NCT00632853), was conducted in two stages. In the first stage, patients with limited-stage disease were randomly assigned to receive 45-Gy twice-daily, 70-Gy once-daily, or 61.2-Gy concomitant-boost radiotherapy, starting with either the first or second (of four total) chemotherapy cycles. In the second stage, allocation to the 61.2-Gy arm was discontinued following planned interim toxicity analysis, and the study continued with two remaining arms. The primary end point was overall survival (OS) in the intention-to-treat population. RESULTS: Trial accrual opened on March 15, 2008, and closed on December 1, 2019. All patients randomly assigned to 45-Gy twice-daily (n = 313) or 70-Gy once-daily radiotherapy (n = 325) are included in this analysis. After a median follow-up of 4.7 years, OS was not improved on the once-daily arm (hazard ratio for death, 0.94; 95% CI, 0.76 to 1.17; CONCLUSION: Although 45-Gy twice-daily radiotherapy remains the standard of care, this study provides the most robust information available to help guide the choice of thoracic radiotherapy regimen for patients with limited-stage small-cell lung cancer

UBVRIz Light Curves of 51 Type II Supernovae

We present a compilation of UBV RIz light curves of 51 type II supernovae discovered during the course of four different surveys during 1986 to 2003: the Cerro Tololo Supernova Survey, the Calan/Tololo Supernova Program (C&T), the Supernova Optical and Infrared Survey (SOIRS), and the Carnegie Type II Supernova Survey (CATS). The photometry is based on template-subtracted images to eliminate any potential host galaxy light contamination, and calibrated from foreground stars. This work presents these photometric data, studies the color evolution using different bands, and explores the relation between the magnitude at maximum brightness and the brightness decline parameter (s) from maximum light through the end of the recombination phase. This parameter is found to be shallower for redder bands and appears to have the best correlation in the B band. In addition, it also correlates with the plateau duration, being thus shorter (longer) for larger (smaller) s values.Comment: 110 pages, 9 Figures, 6 Tables, accepted in A