bluuebunny/crossref_metadata_2025 huggingface dataset:
KAJIAN DAMPAK KEBIJAKAN UNITED STATES GENERALIZED SYSTEM OF PREFERENCE (US-GSP) 2015 TERHADAP EKSPOR PRODUK PERIKANAN INDONESIA KE USA
Authors: Rahadian Rikrik , Tajerin Tajerin , Nasution Zahri
Published: April 2017

Sejak pertamakali diperkenalkan pada tahun 1970-an, Generalized System of Preference (GSP) telah diterapkan oleh negara-negara maju seperti United States of America (USA), Jepang dan European Union (EU). Meskipun bertujuan serupa, yaitu mendorong serta memfasilitasi perdagangan bagi negara-negara berkembang, namun pada penerapannya di masing-masing negara terdapat perbedaan pengaturan GSP – terutama terkait perihal daftar beneficiaries serta produk yang memperoleh fasilitas GSP. Tulisan ini bertujuan untuk mengkaji kebijakan US-GSP 2015 serta menganalisis besaran dampak kebijakan tersebut terhadap ekspor produk Kelautan dan Perikanan (KP) Indonesia di pasar ekspor USA. Untuk memperoleh informasi tersebut, maka dipergunakan model SMART yang dikembangkan oleh World Integrated Trade Solutions (WITS) untuk mengolah data perdagangan di USA pada tahun 2014, yang diperoleh dari database TRAIN-UNCTAD. Hasil simulasi menunjukkan bahwa rejim terkini GSP di USA (2015), jika dimanfaatkan, akan dapat mendorong peningkatan ekspor produk perikanan Indonesia ke USA, terutama untuk komoditas olahan. Ever since it was introduced in the 70’s, the Generalized System of Preference (GSP) has been adopted and implemented by the developed countries such as United States of America (USA), Japan and the European Union (EU). Despite its similar purpose, which is to encourage as well as facilitate trade for the developing countries, its implementations in each adopting country have been very customized – especially concerning the beneficiary list and GSP product list. The purpose of this paper is to analyze the impacts of US-GSP 2015 implementation towards Indonesian Fisheries Export to the USA. The research was conducted using a SMART model – an economic model developed by the World Integrated Trade Solution (WITS) – to simulate the impacts of the trade policy using the TRAIN-UNCTAD database. The simulation showed that the latest US-GSP regime, if completely utilized by the Indonesian Exporters, could actually boost Indonesian Fisheries Exports to the USA, especially for the fish processing products.
POTENSI SUMBER DAYA PERIKANAN DI DANAU TOBA, SUMATERA UTARA
Authors: Tjahjo Didik Wahju Hendro , Nastiti Adriani Sri , Purnomo Kunto , Kartamihardja Endi Setiadi , S. Sarnita Achmad
Published: April 2017

Perairan Danau Toba memerlukan teknologi pengelolaan sumber daya perikanan yangrasiogal dan berwawasan lingkungan. Tujuan penelitian ini yaitu mendapatkan data potensi perairan dan alternatif pengelolaan sumber daya perikanan di Danau Toba.
PENGGUNAAN EKSTRAK SPONS UNTUK PENANGGULANGAN . BAKTERI Vibrio sp. PADA UDANG WINDU Penaeus monodon
Authors: Muliani Muliani , Suryati Emma , Ahmad Taufik
Published: April 2017

penelitian ini bertujuan untuk mengetahui pengaruh penggunaan bioaktifspons terhadappenanggulangan bakteri Vibrio sp. pada udang windu P. monodon Penelitian dilakukan di laboratorium Balai Penelitian Perikanan Pantai, Maros yang meliputi beberapa tahapan kerja yaitu: (1) Isolasi dan iclentifikasi bakteri Vibrio sp. dari udang windu, (2) Perbanyakan bakteri Vibrio sp.
UJI TOKSISITAS LOGAM BERAT TERHADAP BENUR UDANG WINDU (Penaeus monodon) DAN NENER BANDENG (Chonos chanos)
Authors: Rachmansyah Rachmansyah , Dalfiah Dalfiah , Pongmasak P.R. , Taufik Ahmad Taufik Ahmad
Published: April 2017

Perkembapgan usaha budidaya perikanan dewasa ini berlangsung bersamaan denganperkembangan industri yang cenderung menghasilkan bahan pencemar sebagai limbah. Efek toksisitas bahan pencemar logam terhadap benur windu (Penaeus monodort) dan nener bandeng (Chanos chanos) sebagai komoditas potensial budidaya perlu dikaji.
PENGARUH FOSFOLIPID DALAM PAKAN TERHADAP PEMATANGAN GONAD UDANG WINDU (Penaeus monodon) ASAL TAMBAK
Authors: Suwirya Ketut , Marzuqi M.
Published: April 2017

Fosfolipid berperan dalam transpor lenrak dan kholesterol antar organ danjaringan. Studi penambahan fosfolipid pakan induk udang windu dilakukan dengan tujuan untuk mendapatkan kadar fosfolipid pakan yang optimal dalam pematangan induk udang windu
PENGARUH KADAR TEPUNG KEPALA UDANG DAN WAKTU INKUBASI TERHADAP PRODUKSI BIOMASSA PROTEIN SEL TUNGGAL
Authors: Saleh Mohammad , Marina Marina , Heruwati Endang Sri , Suptijah Pipih
Published: April 2017

Percobaan pemanfaatan tepung kepala udang untuk pembuatan protein sel tunggal telah dilakukan untuk mendapatkan kadar substrat dan waktu inkubasi optimum bagiproduksi maksimal biomassa sel. Tepung kepala udang dengan kadar 1%, 4%,7%, dan 10% digunakan sebagai substrat dari jamur Triehoderma uiride denganinkubasi selama 4, 6, dan 8 hari lada pH 4,5 dan suhu 28' C.
PENELITIAN PASOK BENIH ALAM IKAN KERAPU (Epinephelus spp.) MELALUI PEMELIHARAAN INDUK PADA KERAMBA JARING APUNG SEBAGAI RESERVAT BUATAN
Authors: Lsmail Wardana , Wardoyo Supriyono Eko , Priono Bambang , Imanto Philip Teguh
Published: April 2017

Tujuan penelitian ini adalah mendapatkan model pemeliharaan induk-induk kerapu dalam keramba jaring apung (KJA) yane berfungsi sebagai reservat buatan, meningkatkan kelimpahan benih kerapu di padang lamun dengan adanya reservat buatan, sehingga suplai benih kerapu dari alam, dapat rnenunjang budidaya kerapu dan menjaga kelestarian sumber daya benih alam maupun plasrna nutfahnya.
RESIDU OKSITETRASIKLIN DALAM DAGING UDANG WINDU Penaeus monodon PADA KONDISI SALINITAS YANG BERBEDA
Authors: Rachmansyah Rachmansyah , Muliani Muliani , Masak P.R. Pong , Yulianingsih Reni , M. Kumaunang M. Kumaunang
Published: April 2017

Analisis residu oksitetrasiklin dalam daging udang windu ukuran 15,86 + 1,41 g/ekor yang dipelihara dalam kondisi salinitas media 15, 20, dan 25 ppt telah dilakukan. Penelitian ini bertujuan untuk mengetahui pengaruh salinitas media pemeliharaan terhadap konsentrasi residu oksitetrasiklin dalam daging udang windu.
PEMANFAATAN SISA PAKAN IKAN MAS OLEH IKAN NILA DALAM KJA GANDA YANG RAMAH LINGKUNGAN
Authors: Pratiwi Endang , Wardoyo Supriyono Eko , Suhenda Ningrum , Iriana Irin
Published: April 2017

Tujuan penelitian adalah untuk mendapatkan teknologi pemanfaatan sisa pakan ikan mas oleh ikan nila dengan efektif dan efisien dalam KJA ganda. Dengan adanya ikan nila pada keramba lapis luar, maka pengotoran lingkungan akibat sisa pakan ikan mas bisa dikurangi, sehingga kelangsungan budidaya dapat lestari.
PENINGINGKATAN DAYA TETAS TELUR DAN SINTASAN LARVA IKAN NILA (Oreochromis nilotucus) DENGAN PENGGUNAAN OBAT-OBATAN
Authors: Supriyadi Hambali , Komarudin Oman , Taufik Pipik , Jangkaru Zulkifli , Asih Sidi
Published: April 2017

Penelitian bertujuan untuk mengetahui cara penanganan telur, larva dan induk bagi peningkatan produksi benih nila melalui penerapan manajemen kesehatan ikan. Dalam penelitian ini digunakan beberapa macam anti jamur untuk penanganan telur serta beberapa macam antibiotik dan vaksin dengan berbagai dosis untuk peningkatan daya sintasan larva,
PERCOBAAN PENGENDALIAN BAKTERI BERCAHAYA, Vibrio harveyi YANG BERASAL DARI LARVA KEPITING BAKAU, Scylla serrata SECARA "IN VITRO" DENGAN BERBAGAI JENIS ANTIBIOTIK
Authors: Rusdi Ibnu , Zafran Zafran
Published: April 2017

Uji secara "in vitro" tiga jenis bahan kimia (antibiotik), masing-masing adalah Oksitetrasiklin, Prefuran, dan Furazolidon dalam menanggulangi Vibria harveyi yang diisolasi dari larva kepiting bakau, Scylla serrato sakit dilakukan di Loka Penelitian Perikanan Pantai Gondol, Bali. Tujuan utama penelitian ini adalah untuk mengetahui konsentrasi terendah yang efektif menghambat pertumbuhan V. harueyi dan efektivitasnya dalam menekan mortalitas larva akibat serangan V. harueyi. Oksitetrasiklin, Prefuran, dan Furazolidon efektif menghambat pertumbuha n V. harueyipada konsentrasi masing-masing 6,25;12,5O; dan 12,50 mg/L. tlasil aplikasi dalam pemeliharaan larva ternyata ketiga jenis antibiotik tersebut mampu menekan mortalitas larva akibat serangan V. harueyi.
SEBARAN IKAN HIAS SUKU CHAETODONTIDAE DI PERAIRAN KARANG PULAU AMBON DAN PERANANNYA DALAM PENENTUAN KONDISI TERUMBU KARANG
Authors: Edrus Isa Nagib , Syam Amran Ronny
Published: April 2017

Penelitian sebaran ikan hias jenis Chaetodontidae sehubungan dengan kualitas terumbu karang telah dilakukan pada 10 lokasi di pantai utara Pulau Ambon dari bulan Juni sampai Juli 1994. Metode yang digunakan untuk penelitian keanekaragaman Chaetodontidae dan persen penutupan karang adalah sensus visual, survai manta tow dan line intercept transect.
PENINGKATAN SINTASAN DAN KETAHANAN LARVA UDANG WINDU (Penaeus nxonodon) MELALUI PENAMBAHAN BAKTERI Vibrio harveyi KE DALAM PAKAN MIKRO
Authors: Zafran Zafran , Roza Des , Suwirya Ketut
Published: April 2017

Vibriosis merupakan penyakit bakteria yang dihadapi para pengelola  hatcheri dalam memproduksi benih udang. Vaksinasi diyakini merupakan suatu metode yang efektif untuk meningkatan ketahanan udang terhadap infeksi bakteri. Di Loka Penelitian Perikanan Pantai Gondol.
PENGARUH JENIS STIELTER TERHADAP PERTUMBUHAN DAN SINTASAN LARVA TERIPANG PASIR (Hotothuria scabra)
Authors: Moria Sari Budi , Sugama Ketut , Suastika Made , Darmansyah Dharmansyah
Published: April 2017

Tujuan penelitian ini adalah untuk mengetahui jenis shelter (tempat berlindung) yang tepat terhadap pertumbuhan dan sintasan larva teripang pasir. Wadah percobaan adalah sembilan buah akuarium yang berukuran 60x40x40 cm3 yang masing-masing ditebari 3800ekor larva teripang pasir stadia doliolaria.
STUDI TENTANG ORGANISME PENTYEBAB BERCAK MERAH PADA BAK PEMELIHARAAN LARVA UDANG WINDU (Penaeus monodon)
Authors: Roza Des , Zafran Zafran , Koesharyani Isti
Published: April 2017

Vibrio harveyi merupakan salah satu jenis bakteri yang sering menyebabkan kematian massal larva pada panti benih udang windu. Selain menyebabkan larva udang yang terinfeksi kelihatan menyala dalam keadaan gelap (kunang-kunang) V. harveyi juga dapat menyebabkan bercak merah pada bak pemeliharaan.
STUDI PENDAHULUAN PENGARUH PADAT TEBAR INDUK SOTONG BULUH, Sepioteuthis leeeoniana TERHADAP PERTUMBUHAN DAN SINTASAN DALAM KERAMBA JARING APUNG
Authors: Pongsapan Daud S. , Usman Usman , Ahmad Taufik
Published: April 2017

Penelitian dilakukan selama satu bulan di Teluk Labuange Kabupaten Barru, SulawesiSelatan, menggunakan keramba ukuran 2x2x2 m3 yang terbuat dari jaring polietilen ukuran mata 3/4 inci. Penelitian ini bertujuan untuk mengetahui pengaruh kepadatan terhadap pertumbuhan dan tingkat sintasan induk sotongbuluh dalam keramba jaring apung di laut.
PENGARUH PEMBERIAN JENIS FITOPLANKTON YANG BERBEDA TERHADAP SINTASAN LARVA KEI'ITING BAKAU (Scylla sercata)
Authors: Yunus Yunus , Roza Des , Sugama Ketut
Published: April 2017

Terjadinya tingkat kematian yang tinggi pada stadia awal pertuntbuhan larva kepiting bakau dapat disebabkan antarala lain oleh tidak tersedianya pakan alami yang diperlukan untuk larva stadia zoea.
KEMAMPUAN BAKTERI Desulphovibriosp. DALAM PENGURAIAN SENYAWA BELERANG DAN ANALISIS IAJU SEDIMENTASI, UNTUK PERBAIKAN KUALITASAIR PADA BUDI DAYA KERAMBAJARING APUNG
Authors: Umar Chairulwan , Kartamihardja Endi Setiadi , Supriyadi Hambali
Published: April 2017

Usaha budi daya ikan di Keramba Jaring Apung (KJA) di perairan umum menunjukkan tendensi penurunan mutu perairan akibat akumulasi sisa hasil metabolisme.
PENGARU H SU PLEMENTASI-ASKORBI L.2.FOSFAT MAG N ESI U M SEBAGAI SUMBER VITAMIN C DALAM RANSUM TERHADAP PERKEMBANGAN GONAD DAN MUTU TELUR IKAN BANDENG (Chanos chanos Forskal)
Authors: Azwar Zafril Imran , Prijono Agus , Setiadharma Tony , Sutarmat Tatam
Published: April 2017

Penelitian yang bertujuan untuk mengetahui pengaruh dosis L-askorbil-2-fosfat magnesium sebagai sumber vitamin C terhadap perkembangan gonad dan mutu telur ikan bandeng (Chanoschanos Forskal) telah dilakukan di Balai Besar Riset Perikanan Budidaya Laut Gondol.
STUDI KELAYAKAN PENANGKAPAN DAN PEMASARAN IKAN BETOK (Anabassp.) Dl KALIMANTAN SELATAN
Authors: Azizi Achmad , Wahyudi Novenny A.
Published: April 2017

Penelitian mengenai kelayakan penangkapan dan pemasaran ikan betok (Anabas sp.) dalam usaha pengembangan budi dayanya di Kalimantan telah dilakukan dengan menggunakan metode survai. Pengambilan sampel dilakukan secara acak sederhana, dengan jumlah responden nelayan dan pedagang masing-masing 90 dan 30 orang.
CHẤT LƯỢNG TRẦM TÍCH BỀ MẶT ĐÁY Ở VÙNG BIỂN XUNG QUANH QUẦN ĐẢO THỔ CHU, KIÊN GIANG
Authors: Vinh Le Thi , Tam Pham Huu
Published: April 2017

Kết quả phân tích các mẫu trầm tích bề mặt đáy thu thập vào tháng 10/2013 tại các rạn san hô và hệ sinh thái đáy mềm xung quanh quần đảo Thổ Chu cho thấy: Tỉ lệ cấp hạt bùn-sét, pH, Eh, hàm lượng các chất hữu cơ, kim loại nặng, dầu mỡ và Sts trong trầm tích dao động trong phạm vi tương đối rộng (tỉ lệ cấp hạt bùn-sét: 1,68 - 39,28%; pH: 7,15 - 8,18; Eh: (-121,0) - (-58) mV; Chc: 0,07 - 0,7%; Nhc: 149,4 - 242,2 µg/g; Pts: 95,8 - 795,7 µg/g; Zn: 3,2 - 17,4 µg/g; Cu: 2,8 - 10,0 µg/g; Pb: 2,9 - 17,1 µg/g; dầu mỡ: 89 - 153 µg/g và Sts: 437,6 - 3.078,3 µg/g); Hàm lượng các chất hữu cơ và kim loại nặng (Zn, Cu) trong trầm tích hệ sinh thái đáy mềm tương đối cao hơn so với trầm tích các rạn san hô trong khi giá trị pH có xu thế ngược lại. Hàm lượng Sts, Pb, dầu mỡ và tỉ lệ cấp hạt bùn-sét trong trầm tích tại hai hệ sinh thái này không có sự khác biệt. Nhìn chung, chất lượng môi trường trầm tích tại các rạn san hô và các hệ sinh thái đáy mềm xung quanh quần đảo Thổ Chu còn rất tốt, hàm lượng các chất hữu cơ và kim loại nặng trong trầm tích đều phù hợp cho đời sống thủy sinh.
ĐẶC ĐIỂM VẬN CHUYỂN BÙN CÁT VÀ NGUYÊN NHÂN GÂY BỒI LẮNG KHU VỰC ĐẦM NẠI (NINH THUẬN)
Authors: Vinh Vu Duy , Huong Do Thi Thu , Quan Nguyen Van , Tien Nguyen Ngoc
Published: April 2017

Bài báo trình bày một số kết quả nghiên cứu, đánh giá đặc điểm vận chuyển bùn cát và biến động địa hình đáy ở khu vực đầm Nại (Ninh Thuận) trên cơ sở thiết lập hệ thống mô hình thủy động lực - sóng - vận chuyển bùn cát và biến động địa hình đáy cho khu vực này. Kịch bản hiện trạng đã được thiết lập, kiểm chứng từ số liệu đo đạc về dòng chảy, mực nước trong mùa mưa và mùa khô. Theo cách tiếp cận tham số MORFAC (The Morphological Acceleration Factor) trong mô hình Delft3D, 36 kịch bản tính toán khác nhau đã được thiết lập dựa trên các điều kiện sóng, lưu lượng nước vào đầm. Phân tích các kết quả tính toán cho thấy dòng bùn cát ở phía ngoài biển khu vực nghiên cứu chủ yếu di chuyển từ phía đông bắc xuống phía tây - tây nam. Lượng bùn cát đi vào khu cửa đầm (lạch Tri Thủy) từ biển chiếm ưu thế tuyệt đối so với dòng đi từ khu vực cửa đầm ra ngoài với giá trị lần lượt là 760,1 m3/ngày và 122,8 m3/ngày gây bồi lấp khu vực cửa đầm. Dòng bùn cát từ đầm Nại ra và vào từ khu vực cửa đều rất nhỏ: 2,1 m3/ngày và 3,4 m3/ngày. Các kết quả trên cho thấy lượng bùn cát từ xung quanh đổ vào đầm Nại nhưng không thoát được ra biển qua khu vực cửa đầm là nguyên nhân chính gây bồi lắng lòng đầm với tốc độ bồi lắng 5 - 15 mm/năm. Dòng bùn cát trong lũ cũng làm tăng đáng kể đến tốc độ bồi lắng trong lòng đầm Nại do lượng bùn cát này sau khi vào đầm phần lớn bị lắng đọng lại ở trong lòng đầm.
INTERPRETATION OF GRAVITY AND MAGNETIC DATA TO PREDICT THE POTENTIAL STRUCTURES OF MINERALS IN THE AREAS OF SOUTH - SOUTHEAST VIETNAM WATERS
Authors: Dung Tran Tuan , Dung Bui Viet , Hung Nguyen The
Published: April 2017

The East Vietnam Sea is a marginal sea with complicated geological structures. The volcanic activities are quite strong after the sea-floor spreading in Cenozoic Era. There are the types of structure here favorable to the formation of solid minerals (manganese-iron aggregation). However, it is difficult to define their ranges and spatial locations. This paper presents the methods of reduction to the magnetic equator in low latitudes to bring out a better correlation between magnetic anomalies and their sources; High-frequency filtering is to separate gravity and magnetic anomalies as well as information about the solid minerals in the upper part of the Earth’s crust; 3D total gradient is to define the spatial location of high density and magnetic bodies. The potential structures of solid mineral are predicted by multi-dimensional correlation analysis between high frequency gravity and magnetic anomalies with weighted 3D total gradient.
THÀNH PHẦN LOÀI VÀ PHÂN BỐ CỦA RONG BIỂN TẠI MỘT SỐ ĐẢO (NAM YẾT, SƠN CA, SONG TỬ TÂY, SINH TỒN) THUỘC QUẦN ĐẢO TRƯỜNG SA
Authors: Tien Dam Duc , Cuong Do Huy
Published: April 2017

Rong biển là một nhóm thực vật bậc thấp sống ở biển, đây là một hợp phần quan trọng của tài nguyên biển. Rong biển là một nguồn tài nguyên biển quan trọng, có giá trị kinh tế mà từ lâu đã được con người sử dụng rất nhiều trong các ngành công nghiệp (y - dược, thực phẩm, phân bón ...). Các đảo Nam Yết, Sơn Ca, Song Tử Tây và Sinh Tồn là các đảo nhỏ thuộc quần đảo Trường Sa, huyện Trường Sa, tỉnh Khánh Hoà. Bài báo giới thiệu về thành phần loài và phân bố của rong biển tại các đảo (Nam Yết, Sơn Ca, Song Tử Tây và Sinh Tồn) thuộc quần đảo Trường Sa. Kết quả nghiên cứu cho thấy rằng, tại bốn đảo thuộc quần đảo Trường Sa, đã xác định được 133 loài rong biển, trong đó, rong Lam có 13 loài, chiếm 10% tổng số loài đã thu được; rong Đỏ: 67 loài (50,3%); rong Nâu: 20 loài (15,0%) và rong Lục: 33 loài (24,7%). Sự phân bố địa lý (phân bố rộng) của rong biển tại bốn đảo hoàn toàn không giống nhau. Số loài lớn nhất là 77 loài (đảo Nam Yết), số loài nhỏ nhất, 34 loài (đảo Sơn Ca) và trung bình 57,3 loài. Hệ số tương đồng của rong biển giữa các đảo dao động trong khoảng 0,30 (giữa Nam Yết và Sinh Tồn) đến 0,49 (giữa Sơn Ca và Sinh Tồn) và trung bình là 0,39. Sự phân bố thẳng đứng của rong biển chủ yếu trong giới hạn từ vùng triều trở xuống và tập trung chủ yếu ở vùng triều thấp. Một số loài có thể phân bố sâu đến 20 m dưới 0 m hải đồ hoặc sâu hơn nữa. Trong số 133 loài rong biển đã phát hiện được, có 75 loài chỉ phân bố ở vùng triều (chiếm 56,4%), vùng dưới triều có 28 loài (28,0%) và 30 loài ở cả vùng triều và dưới triều (15,6%).
CALCULATION OF VIETNAM’S COASTLINE LENGTH (MAINLAND) BASED ON TOPOGRAPHIC MAP SYSTEM AT SCALE 1/50,000
Authors: Dung Bui Quang , Khanh Uong Dinh
Published: April 2017

Several values of Vietnam’s coastline length were obtained by a number of organizations and foreign offices. This situation is mainly dependent on sources of data, measurement technique, and many other problems. This calculation is made with digital national topographic maps at scale 1/50,000 as source data for coastline extraction including river mouths, bays but lagoons and island coasts. The measurement was made using 200 m and 1,000 m strait length as base units, with appropriate technique. The calculation can provide scientific values of the coastline length of Vietnam as well as coastal provinces. As the result, Vietnam coastline length (mainland) is of 3,658 km and 3,289 km at the base unit of 200 m and 1,000 m, respectively.
MỘT SỐ NHẬN ĐỊNH BAN ĐẦU VỀ HIỆN TƯỢNG SÓNG NỘI XẢY RA Ở VÙNG BIỂN MIỀN TRUNG VIỆT NAM
Authors: Son Tong Phuoc Hoang , Chung Tran Van , Huan Nguyen Huu , Tien Ngo Manh
Published: April 2017

Sóng nội thường xuyên xuất hiện ở Biển Đông và đã được các học giả nước ngoài xác định chủ yếu dựa trên tư liệu ảnh RADAR. Bằng sử dụng nguồn ảnh viễn thám đa phổ, đa nguồn, đa thời gian bao gồm cả các ảnh viễn thám đa phổ VNREDSAT-1 (do Việt Nam bay chụp) thu thập trong thời gian gần đây, lần đầu tiên đã nhận dạng hiện tượng sóng nội ở Biển Đông bằng tư liệu ảnh đa phổ cũng như phát hiện ra quy luật hình thành sóng nội ở vùng biển miền Trung Việt Nam. Kết quả phân tích cho thấy, hiện tượng sóng nội xuất hiện ở vùng biển miền Trung Việt Nam, chủ yếu xuất hiện vào mùa gió Tây Nam (từ tháng 6 đến tháng 9 hàng năm) và nằm ở ven rìa của thềm lục địa. Sóng nội hình thành dọc theo vùng biển miền Trung Việt Nam chủ yếu là các tín hiệu được sinh ra tại vùng thềm bởi các sóng lớn, xuyên qua lưu vực từ eo biển Luzon. Kết quả nghiên cứu đã phát hiện ra một khía cạnh ứng dụng khác của ảnh viễn thám VNREDSAT-1 trong lĩnh vực hải dương học nói chung và nghiên cứu chi tiết sóng nội nói riêng.
QUANTITATIVE ANALYTICAL RESULTS ON TOPOGRAPHIC FEATURE OF THE VIETNAM’S CONTINENTAL SHELF WITHIN COORDINATES 11.7 - 14.00 AND 109.5 - 110.20
Authors: Thanh Phi Truong
Published: April 2017

This paper presents some analytical results of bathymetry data according to three maps: Three dimensions (3D), slope, aspect on the continental slope and shelf area in the central part of Vietnam within the coordinates of 11.7 - 14.00 and 109.5 - 110.20. The obtained results have reflected clearly the geomorphic characteristics in this area. For example, on the 3D map, the continental slope exists three steps at the depths of 500 - 700 m, 1,250 m, and 1,500 - 1,700 m, running along the meridian 109.70, about 250 km long. These results are also shown on the slope and aspect map. On the slope map, from the depth of about 250 m to the first step base, the slope angle varies within 5 - 200 and from the first step base to second step base, the slope angle varies within 5 - 100; In the remaining part, the slope angle varies within 2 - 80. The other analytical results from the aspect map are also shown clearly, the aspect direction on the wall of three slope steps varies from 50 to 1000, reflecting the topographic slope towards the east, where is abyssal plain. The existence of Pliocene - Quaternary sediments along with steep continental slope caused landslide phenomenon in this area.
Electronic portfolios for assessment in your postgraduate medical education program: essential questions to ask when selecting a platform for competency-based medical education (CBME)
Authors: Sonnenberg Lyn Kathryn , von Hauff Patrick , Lemieux Lisa
Published: April 2017

This article was migrated. The article was marked as recommended. Portfolios have re-emerged as a means of addressing the complex assessment challenges in postgraduate programs as we transition to competency-based medical education (CBME). However, implementing electronic portfolios (e-portfolios) can be a daunting task. In this paper, we aim to provide guidance to program directors and administrators who are tasked with the implementation of an e-portfolio by reporting on the successful development of a low-cost e-portfolio system for our Developmental Pediatrics residency program. Twelve helpful tips have been developed: 1. Can the e-portfolio be customized to meet the needs of my program? What resources are required to customize the system? (tailor to fit); 2. Is it easy to learn, efficient to use, and easy to remember? (easy-peasey-lemon-squeezy); 3. Can it be customised by the learner? (make it their own, home sweet home); 4. Is the e-portfolio portable? Can the learner access the portfolio after completing training? (make it to go); 5. What are the privacy settings and controls? Are the privacy/sharing settings transparent and easy for everyone to understand? (private parts); 6. What level of mobile support does the system provide? (anywhere, anyplace, anytime); 7. How can mentor feedback be incorporated? (feedback friendly); 8. What are the financial (and hidden) costs? (count the costs); 9. How long do you need the platform to be sustainable? Can the platform give you the sustainability that you need? (check the expiry date); 10. Access to support (know who's got your back); 11. What kind of support is available? How fast can you get the support you need? (share and share alike); and 12. Can it be scaled for use with each new cohort of learners? (keep up with the times). In addition to the twelve tips, this paper includes insightful commentary from a program director and a recently graduated resident who used the portfolio throughout her training. As we continue to move toward competency-based learning, e-portfolios will provide a platform and stimulus for sustained excellence in medical education.
Caracterización epidemiológica del trauma craneoencefálico fatal en Cartagena, Colombia, 2007-2011
Authors: Tuñón-Pitalua Martha Cecilia , Ortiz-Pinto Maira Alejandra
Published: April 2017

Resumen. Introducción: el trauma craneoencefálico fatal es de común ocurrencia en nuestro medio, sin que tengamos estadísticas confiables sobre su frecuencia real. Metodología: se realizó un estudio descriptivo retrospectivo, con base en los registros del Instituto Nacional de Medicina Legal y Ciencias Forenses de la Unidad Básica de Cartagena, Colombia. Resultados: las tasas de mortalidad oscilaron de 7 a 14 por cada 100 000 habitantes por año, durante el período analizado, presentándose con mayor frecuencia en el sexo masculino, en una proporción que varió de 25:1 en el primer año estudiado, a 10:1 al final del período, y en edades desde los 20 a los 35 años. La causa se debió a heridas perforantes por proyectiles de arma de fuego en el 56,8 % de los casos, seguido por lesiones en accidente de tránsito en un 32,4 %, con lesiones de localización supratentorial en el 82,8 % de los casos. El 69,9 % de las víctimas falleció en el lugar de los hechos, afectando individuos entre los 20 y 35 años de edad. La georeferenciación de los casos permitió observar que las comunas en donde hubo mayor número de casos fue en las 1, 4 y 11, correspondientes a las comunas Histórica, Caribe Norte y la localidad la Virgen y Turística. Conclusiones: El trauma craneoencefálico fatal es de frecuente ocurrencia en laciudad, en individuos del sexo masculino, en edades de 20 a 35 años, debido en su mayoría a heridas por arma de fuego, de manera homicida, seguido por accidentes de tránsito. Es necesario ahondar en los hechos relacionados con estos resultados.
Utilización de spect cerebral con trodat en el diagnóstico de adicción a sustancias
Authors: Franco-Londoño Jairo , Villa Hooverman , Ocampo-Serna Sabina , Sierra-Martelo Carlos , Medina-Osorio Juan Carlos
Published: April 2017

Resumen. Introducción: la implementación de la neuroimagen funcional en el estudio de diferentes patologías neurológicas y psiquiátricas permitió que se usaran como técnicas en el estudio de los trastornos relacionados con sustancias. Esta investigación tomó herramientas de la medicina nuclear con el fin de aportar al diagnóstico de personas con dependencia a sustancias psicoactivas ilegales. Materiales y métodos: se realizó un estudio descriptivo y transversal de ocho casos de pacientes entre 18 y 44 años con diagnóstico clínico conocido de trastorno por dependencia a múltiples sustancias psicoactivas, de acuerdo con los criterios diagnósticos del dsm iv-tr, que utilizaron el servicio de consulta externa de la Clínica San Miguel Arcángel, en Cartago, Colombia, durante el 2011. Se implementó el procedimiento Gammagrafía spect de perfusión cerebral con trodat - 99mTc, y se confirmó la presencia de diferentes tóxicos en orina a través del método multi drug. Resultados: se encontró en los estudios realizados con gammagrafía spect de perfusión cerebral con trodat - 99mTc disminución en la captación del radio-fármaco en los núcleos de la base de manera bilateral y asimétrica, con mayor compromiso del putamen, comparado con estudios realizados en individuos sanos. Conclusión: los hallazgos en estapoblación de pacientes con dependencia a sustancias evidenció hipocaptación en los núcleos de la base mediante la implementación de gammagrafía spect de perfusión cerebral con trodat - 99mTc, lo cual sugiere que esta metodología podría aportar argumentos técnico-científicos para realizar diagnósticos positivos o negativos sobre adicción a sustancias.
Reporte de casos de lesiones anorrectales por arma corto punzante como causa de muerte en Soacha, Colombia, 2015
Authors: Miranda-Santana Wilmar Maximiliano , Butrago Cuellar Jorge Enrrique , Rodríguez Navarrete Juan Manuel
Published: April 2017

Propósito: el objetivo de esta revisión es poner en conocimiento de las autoridades y la comunidad científica una serie de homicidios con circunstancias similares, que sugieren el mismo modus operandi. Tema: homicidios seriales en población vulnerable con evidencia de empalamiento y tortura. Desarrollo: se presenta la revisión de tres casos de hombres adultos, presuntos consumidores de sustancias de abuso, con signos que sugieren tortura, lesionados por mecanismo corto punzante en región anorrectal; esto en contraste con el cadáver de una víctima de sexo masculino, que evidencia signos de trauma contundente con estigmas de maniobras de penetración a nivel anal. Conclusiones: el estudio médico legal completo establece la condición de las víctimas, la manera y causa de muerte, el mecanismo causal, las señales compatibles con tortura y algunas circunstancias de los hechos en las víctimas. Dado que los cuerpos fueron hallados en canales de aguas residuales, no es posible determinar la escena primaria del hecho. Consideramos que debe profundizarse en la investigación de estos homicidios como muertes en serie con agravante de maniobras de tortura.
Evidencia genética revela oportunidades de mejora para preparación de tejidos en análisis forenses
Authors: Romero Rosa Elena , Sandoval Alejandro , Arango Juliana , Camargo Martha Lucia
Published: April 2017

Introducción: los tejidos embebidos en parafina constituyen una excelente alternativa para obtener adn, especialmente cuando no es posible contar con muestras frescas o el almacenamiento y conservación del tejido no es viable, de manera que esta muestra es el único elemento disponible para realizar un cotejo. El éxito en cualquier análisis genético es contar con métodos de fijación de tejidos y de extracción de adn adecuados que permitan obtener moléculas de buena calidad y cantidad, libres de contaminantes biológicos, químicos y microbiológicos que pueden actuar como inhibidores en los procesos de amplificación por pcr. Métodos y materiales: en el laboratorio de genética del Instituto Nacional de Medicina Legal y Ciencias Forenses, Regional Suroccidente, Colombia, se realizó una prueba preliminar para la validación de la extracción de adn en tejidos embebidos en parafina, utilizando el método orgánico validado y empleado de rutina por ellaboratorio de genética de Bogotá, Colombia. Resultados y discusión: se corroboró la eficacia del método a partir del análisis de reproducibilidad, respetabilidad y concordancia en cuanto a concentración de adn, y obtención de perfiles genéticos a partir de los extractos de adn de cuatro réplicas de tres diferentes tipos de tejidos obtenidos a partir de un feto, con respecto a una muestra de sangre en soporte fta. Conclusiones: con los resultados preliminares obtenidos, se encontraron algunas oportunidades de mejora para los laboratorios que intervienen en el proceso.
Reputation and Investor Activism
Authors: Swem Nathan , Johnson Travis L.
Published: April 2017

We show that an activist&#x27;s reputation is a critical determinant of the success of their campaigns. We model reputation as target managers&#x27; belief about the activist&#x27;s willingness to initiate a proxy fight. Our model indicates reputation, rather than stake size, induces managers to settle without a proxy fight. We present empirical evidence supporting our model&#x27;s predictions: target companies more-frequently increase payouts, change management or board composition, engage in a merger or acquisition, or otherwise reorganize in response to high reputation activist campaigns, while target actions are not sensitive to the activist&#x27;s stake size.
Fish catch composition of selected small scale fishing gears used in the Bonny River, Rivers State, Nigeria
Authors: Olopade Olaniyi Alaba , Sinclair Nkuene Gbenekanu , Dienye Henry
Published: April 2017

Fish catch composition of some selected small scale fishing gears (gill net, cast net, beach seine and long line) were investigated in Bonny River, Rivers State, Nigeria from August 2014 to January 2015. A total number of 25 fish species from 18 families were recorded during the study. The Mugilidae with only one species constituted the dominant family while Cichlidae, Lutjanidae, Clupeidae, had three species and Scianidae had two species of fish caught and the remaining families had one species each. Mugil cephalus constituted 28.48% of the total catches followed by C. nigrodigitatus (22.48%). In the dry season M. cephalus forms the major component landings (32.65%), followed by C. nigrodigitatus (26.53%) and S. galilaeus (12.24%) while in the wet season M. cephalus (31.06%), C. nigrodigitatus (18.63%) and T. zillii (11.80%) were the dominant fish species. Cast net was the most efficient fishing gear while gill net was the least efficient. The comparison analysis between the wet and dry seasons using t-test showed no significant difference between dry and wet seasons (t = 0.092, P > 0.05).
Role of conservative treatment of chronic venous insufficiency for regression of the features of desadaptive cardiac remodeling in patients with comorbid obesity
Authors: Leukhnenko I N , Teplyakova O V , Grishina I F
Published: April 2017

Aim. To evaluate the influence of conservative treatment tactics for chronic venous insufficiency on the processes of cardiac remodeling in patients with comorbid obesity.

Methods. 32 males with obesity class 1 (BMI 32.57±2.25 kg/m2) at the age of 40.7±11.5 years and with clinical and instrumental signs of chronic venous insufficiency were divided into 2 groups: patients from group 1 (n=14) followed the recomendations to wear compression stockings and to use hesperidin + diosmin 500 mg twice a day, and the patients from group 2 (n=18) did not follow those recommendations. All patients had echocardiography performed before the treatment and 2 months after the first visit. For the evaluation of echocardiographic dynamics paired Student’s t-test was used.

Results. After 2 months statistically significant dynamics of the following echocardiographic findings was revealed: in group 1 index of eccentric left ventricular shape increased from 0.94±0.06 to 1.01±0.03, in group 2 - from 0.96±0.08 to 0.97±0.07 (р=0.023). In group 1 tricuspid annular plane systolic excursion decreased from 30.07±5.31 to 26.64±4.14 mm, in group 2 - from 29.6±4.72 to 29.88±6.04 mm (р=0.008), and the right atrial volume in group 1 decreased from 53.57±11.48 to 46.64±13.18 ml, in group 2 - from 52.77±11.27 to 51.38±8.54 ml (р=0.044). In group 1 statistically significant trend to decreased ratio of maximal velocity of RV early diastolic filling to maximum diastolic tricuspid valve lateral annular velocity was revealed (from 4.75±1.35 to 4.25±1.23 cm/sec) compared to group 2 (from 4.79±1.62 to 4.75±1.58 cm/sec; р=0.076).

Conclusion. Conservative treatment of chronic venous insufficiency in patients with obesity is associated with indirect indicators of decreasing volume overload of the heart and can influence positively on heart geometry leading to regression of spheric LV remodeling and decrease of RA volume.
Features of platelet reaction in acute pancreatitis
Authors: Chikaev V F , Aydarov A R , Zinkevich O D , Petukhov D M , Galyautdinov F S , Safina N A
Published: April 2017

Aim. To identify the features of platelet reaction in peripheral blood in patients with acute pancreatitis.

Methods. We conducted a retrospective analysis of changes of platelets concentration in 19 patients with acute pancreatitis admitted to Kazan City clinical hospital №7. The age of patients ranged from 35 to 76 years, 45±12 years in average. All patients received complex treatment. The main method of surgical treatment was navigation drainage of fluid collections, peripancreatic mass and retroperitoneal space under ultrasound control performed in 11 patients. Subsequently in 4 patients due to progressive pyoinflammatory process midline laparotomy, sanitation, drainage of omental sac and purulent cavities were performed. In 4 cases aseptic pancreonecrosis resolved after conservative treatment. All patients dynamically had erythrocytes and platelets count and mean platelet volume checked.

Results. Analysis of platelets concentration in peripheral blood in patients with acute pancreatitis showed multidirectional character depending on the severity of pathological process. In mild acute pancreatitis the platelet count remains within normal limits. In severe pancreatitis its number increases. The highest numbers of platelets were observed on days 10-20. On discharge platelet count remained elevated. Severe pervasive pancreonecrosis (n=4) with fatal outcome was characterized by thrombocytopenia on admission with further progression.

Conclusion. The nature of the changes in platelet reaction in patients with acute pancreatitis depends on the severity of the pathological process and can be used as a criterion for evaluation of treatment effectiveness and prognosis of the outcome of the disease.
Clinical and pathogenetic features of congenital heart disease in newborns with intrauterine infection
Authors: Beniova S N , Figol’ S Yu , Kornilova O A , Stolina M L , Blokhina N P
Published: April 2017

Aim. Investigation of the features of diagnosis and treatment of congenital heart disease in newborns with intrauterine herpes and cytomegalovirus infections.

Methods. A comparative analysis of risk factors, clinical signs and dynamics of serum levels of matrix metalloproteinases in 91 newborns with congenital heart disease during the early neonatal period was performed. All patients were divided into 2 groups: group 1 (study group) - 51 patients with congenital heart disease and intrauterine Herpes or Cytomegalovirus infection, group 2 (comparison group) - 40 children with heart disease without the signs of intrauterine infection. The control group consisted of 20 relatively healthy full-term newborns.

Results. Mothers of children with congenital heart disease and intrauterine infection more often compared to mothers of children from group 2 had inflammatory disease of reproductive system (49.1 and 22.5% respectively, р ≤0.05), medical abortions in past medical history (84.3 and 27.5% respectively, р ≤0.01), acute respiratory viral infections during pregnancy (21.6 and 7.5% respectively, р ≤0.05). Levels of matrix metalloproteinase 9 in umbilical blood plasm were statistically significantly increased in all newborns with congenital heart disease compared to control levels. The highest concentration of enzyme was registered in patients with congenital heart disease and nervous system disorders associated with intrauterine infection and in newborns with severe heart disease. Inflammatory extracardial changes in patients with congenital heart disease associated with intrauterine infection caused by Herpes Simplex virus and Cytomegalovirus were accompanied by significant increase of matrix metalloproteinase 8.

Conclusion. The association between matrix metalloproteinase 9 in blood serum of newborns and clinical signs of a congenital heart disease during early neonatal period was revealed; high levels of metalloproteinase 8 can indicate intrauterine infection in newborns with congenital heart disease during early neonatal period.
Improvement of dental health in professional athletes engaged in power sports
Authors: Safaraliev F R , Safarov A M , Mamedov F Yu
Published: April 2017

Aim. Evaluation of dental diseases prevalence in professional athletes engaged in power sports and of the influence of biologically neutral products based on propolis on the level of their dental health.

Methods. The examination of organs and tissues of the oral cavity of professional athletes engaged for a long time in power sports was carried out. With the use of the developed specialized questionnaire dental status of the athletes was determined. Based on the analysis of the results of clinical and laboratory studies anti-inflammatory and anti-bacterial effectiveness of products based on propolis were evaluated.

Results. The results of the survey showed that not all athletes are informed about the possibility of aggravation of pathological processes in soft and hard tissues of oral cavity during active training, mainly, in power sports. Lack of awareness of surveyed athletes about the need for timely individual oral hygiene procedures and regular dentist visits was revealed, especially during intense training before and after competitions. On evaluation of dental status of professional combat athletes high prevalence and intensity of inflammatory periodontal disease and caries were found. High anti-inflammatory efficiency of the product «Pomegranate Balm» for correction of dental status of professional athletes was proven.

Conclusion. High incidence of inflammatory periodontal diseases of mild to moderate severity was revealed in athletes during prolonged and intense physical training; efficacy of biologically neutral products based on propolis was established.
Characteristics of dental status of patients with inflammatory periodontal diseases
Authors: Vasil’eva N A , Bulgakova A I , Soldatova E S
Published: April 2017

Aim. Evaluation of dental status in patients with inflammatory periodontal diseases.

Methods. The study of dental status was performed with the use of clinical and historical data from 269 patients with inflammatory periodontal diseases at the age of 18-65 years. Among examined patients there were 75 (27.9%) people with gingivitis, 54 (20.1%) with mild periodontitis, 66 (24.5%) with moderate and 74 (27.5%) with severe periodontitis. Control group consisted of practically healthy donors at the age of 18-52 years (40 people) with sanitized oral cavity.

Results. From history and interviewing it was found that 72% of the surveyed patients brush their teeth twice a day, 24% - once a day and 4% of patients do not brush their teeth. Family history of periodontal diseases among parents was recorded by 86% of participants. Dental status was characterized by the increase of the values of all dental indices with increasing disease severity regardless of gender. Need for correction of the depth of the vestibule, lips, cords, and bridles was identified in 51.7% of cases in patients with gingivitis and in 96.6% of cases of periodontal diseases. With increasing severity of periodontitis index (sum) of teeth with decay and fillings and removed teeth was increased by 1.5 times in gingivitis, by 2.2 times in mild periodontitis, by 2.6 times in moderate and by 2.9 times in severe periodontitis compared to control group. Partial adentia in gingivitis is 3 times more prevalent in males than in females and in severe periodontitis is 1.6 times more prevalent in females than in males.

Conclusion. Dental status of the patients with inflammatory periodontal diseases was characterized by increased values of all dental indices compared to control group that demonstrates typical course of inflammatory periodontal diseases and decrease of local immunologic resistance of oral cavity and the organism in total; timely correction of local factors (local trauma), anatomical and topographical features of dentofacial system and status of oral soft tissues allows prevention of pathologic processes in periodontal tissues.
Evaluation of the possibility to use calcium channel blockers for prevention of intra-abdominal adhesions formation
Authors: Sokolova T F , Skal’skiy S V , Turok N E
Published: April 2017

Aim. To study the possibility of the use of known medications used in cardiology - calcium channel blockers - derivatives of phenylalkilamine (verapamil), benzodiazepine (diltiazem), dihydropyridine (nifedipine) - for prevention of peritoneal adhesion formation.

Methods. The study of the effect of different concentrations of medications on nuclear translocation of NF-κB, proliferative and collagen-synthetic activity of fibroblasts was conducted in the primary culture of rats peritoneal fibroblasts with hemoperitoneum. Aseptic injury of peritoneum was caused by modeling of autohemoperitoneum according to original method.

Results. It was found that verapamil and diltiazem normalized nuclear translocation of NF-κB, processes of fibroblasts proliferation and their collagen synthesis by optimizing fibroblast functional activity during adhesion formation induction. Verapamil and diltiazem affected fibroblasts similarly but with different intensity. Verapamil in concentrations 0.05 and 0.1 mg/ml and diltiazem in concentration 0.1 mg/ml suppressed the excessive fibroblast activity by inhibiting their proliferative and collagen-synthetic activity, nuclear translocation of NF-κB. Verapamil demonstrated the most prominent pharmacological effect. Nifedepine did not reveal such effect. At the molecular level inhibiting effect of calcium channel blockers verapamil and diltiazem on the activation of apoptosis blocking nuclear transcription factor NF-κB was demonstrated.

Conclusion. Verapamil and diltiazem can be recommended for further detailed experimental and clinical studies focused on widening of biological activity spectrum of known medications and area of their clinical use.
Role of nitric oxide synthases polymorphism in the development of comorbidity of bronchial asthma and hypertension
Authors: Uryas’ev O M , Shakhanov A V
Published: April 2017

Present literature review highlights the current views on the role of genetic factors in the development of bronchial asthma and hypertension, indicates their role in the formation of comorbid pathology, draws attention to the role of nitric oxide and nitric oxide synthase genes in the pathogenesis. In recent years there has been increasing interest of researchers to the problem of comorbidity, in particular to a combination of asthma and hypertension. Genetic factors play a great role in pathogenesis of these diseases. Among genes that play role in development of asthma there are genes encoding antigen recognition factors and humoral immune response factors, genes encoding mediators of inflammation, chemokines and intercellular adhesion molecules, genes of receptors performing fixation of external ligand molecules on the target cell, genes of intracellular signaling molecules and transcription factors and a number of other genes. The pathogenesis of essential hypertension is associated with the genes of renin-angiotensin-aldosterone system and genes regulating endothelial status. The link between asthma and hypertension is nitric oxide, which is involved in many physiological processes, in particular, regulates vascular and respiratory tone. Polymorphism of nitric oxide synthases genes is able to violate its production in the organism and thus lead to the development of bronchial asthma and hypertension. Polymorphisms Glu298Asp, eNOS4a/b, and 786C/T of NOS3 gene are associated with development of hypertension. Polymorphisms of this gene had been studied in patients with bronchial asthma, and they have demonstrated their influence on the level of nitric oxide in patients. Thus, the NOS gene polymorphisms may participate in the formation of comorbidity of bronchial asthma and hypertension.