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Adding chitosan nanoparticles of green tea extract in diluent and thawing temperatures ameliorate the post-thawed quality of Boer buck semen

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Asian pacific Journal of Reproduction 2024年第1期13卷 42-48页

作者： Suherni Susilowati Imam Mustofa tri wahyu suparyogi Adeyinka Oye Akintunde Djoko Agus Purwanto Wurlina Wurlina Suzanita Utama Sri Mulyati Division of Veterinary Reproduction Faculty of Veterinary MedicineUniversitas AirlanggaKampus C UnairMulyorejoSurabaya 60115Indonesia Department of Agriculture and Industrial Technology Babcock UniversityIlishan-RemoOgun State 121103Nigeria Department of Pharmaceutical Chemistry Faculty of PharmacyUniversitas AirlanggaKampus C MulyorejoSurabaya 601155East JavaIndonesia

Objective:To improve the quality of post-thawing Boer buck semen for artificial insemination by adding green tea extract chitosan nanoparticles to skimmed egg yolk diluent,and the proper thawing ***:The ejaculate of Boer buck was added to skimmed egg yolk diluent without(the control group)and with adding 1μg of chitosan nanoparticles of green tea extract per mL of diluent(the treatment group).Then,the diluted semen was filled in French mini straws containing 60×106 live sperm per straw,frozen in a standard protocol,and stored as frozen semen at−196℃for a *** replicates from each group were diluted for 30 s at 37℃or 39℃sterile water to evaluate the semen ***:Post-thawing(at 37℃or 39℃)of live sperm,progressive motility,and plasma membrane integrity were lower compared to those of the pre-freezing stage(P0.05).The live sperm,progressive motility,and plasma membrane of the treatment group in the pre-freezing stage,and post-thawed at 39℃were higher compared to those of the control group(P0.05).Conclusions:Higher quality post-thawing Boer buck semen is achieved by adding 1μg/mL of chitosan nanoparticles of green tea extract to the skimmed egg yolk diluent and thawing at 39℃.

关键词： Boer buck semen Chitosan nanoparticles Semen diluent Higher post-thawing semen quality Prevent undernutrition

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Suction-based Grasp Point Estimation in Cluttered Environment for Robotic Manipulator Using Deep Learning-based Affordance Map

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International Journal of Automation and computing 2021年第2期18卷 277-287页

作者： tri wahyu Utomo Adha Imam Cahyadi Igi Ardiyanto Department of Electrical Engineering and Information Technology Faculty of EngineeringUniversity of Gadjah MadaYogyakarta 55281Indonesia

Perception and manipulation tasks for robotic manipulators involving highly-cluttered objects have become increasingly indemand for achieving a more efficient problem solving method in modern industrial ***,most of the available methods for performing such cluttered tasks failed in terms of performance,mainly due to inability to adapt to the change of the environment and the handled ***,we propose a new,near real-time approach to suction-based grasp point estimation in a highly cluttered environment by employing an affordance-based *** to the state-of-the-art,our proposed method offers two distinctive ***,we use a modified deep neural network backbone for the input of the semantic segmentation,to classify pixel elements of the input red,green,blue and depth(RGBD)channel image which is then used to produce an affordance map,a pixel-wise probability map representing the probability of a successful grasping action in those particular pixel ***,we incorporate a high speed semantic segmentation to the system,which makes our solution have a lower computational *** approach does not need to have any prior knowledge or models of the objects since it removes the step of pose estimation and object recognition entirely compared to most of the current approaches and uses an assumption to grasp first then recognize later,which makes it possible to have an object-agnostic *** system was designed to be used for household objects,but it can be easily extended to any kind of objects provided that the right dataset is used for training the *** results show the benefit of our approach which achieves a precision of 88.83%,compared to the 83.4%precision of the current state-of-the-art.

关键词： Grasping point estimation household objects red green blue and depth(RGBD)channel image semantic segmentation cluttered environment

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Selective microwave absorption in Nd3+ substituted barium ferrite composites

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Journal of Rare Earths 2019年第12期37卷 1320-1325页

作者： wahyu Widanarto Siti Khaeriyah Sib Krishna Ghoshal Candra Kurniawan Mukhtar Effendi wahyu tri Cahyanto Department of Physics FMIPAUniversitas JenderalSoedirmanJL dr.Soepamo 61Purwokerto53123Indonesia Department of Physicsand Laser Centre AMORGFaculty of ScienceUniversiti Teknologi MalaysiaJohor BahruSkudai81310Malaysia Research Center for Physics Indonesian Institute of Sciences(LIPI)Puspiptek Office AreaSouth TangerangBanten15314Indonesia

Microwave(MW)frequency based wireless communications and electronic devices became prospective due to several *** meet this need,a series of neodymium ions(Nd3+)substituted barium ferrite composites with composition(20)BaO:(80-x)Fe2 O3:(x)Nd2 O3(0≤x≤3 mol%)was prepared at1100℃using solid-state reaction *** evaluated the effect of various Nd3+ions contents on the surface morphology,structure,and magnetic properties of the as-synthesized barium ferrite ***,microwave reflection loss,complex permittivity and permeability were determined using the transmission/reflection line method in the X-band(8-12 GHz).SEM image of the composites shows that the surface morphology consists of rough and porous *** patterns of the un-doped composites reveal the existence of BaFe12O19(hexagonal)and Fe21.333O32(tetragonal)crystalline ***,a new hexagonal crystalline phase of Ba6 Nd2 Fe4 O15 with the crystallite sizes between 15 and 67 nm is observed due to Nd3+ions substitution in the *** saturation magnetization of the composite containing 2 mol%of Nd3+does not exhibit any significant alteration compared to the one devoid of Nd3+.The complex relative permitivity and permeability of the achieved composites enriched in Ba6 Nd2 Fe4 O15 and BaFe2 O4 phases disclose significant MW frequency *** composites also display selective MW absorption in the X-band which could be useful for diverse applications.

关键词： Neodymium doping Barium ferrite composites Magnetic properties Porosity MW reflection loss Rare earths

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Age determination of paleotsunami sediments around Lombok Island, Indonesia, and identification of their possible tsunamigenic earthquakes

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Earthquake Science 2017年第2期30卷 107-113页

作者： Aswan Yahdi Zaim Yan Rizal I.Nyoman Sukanta Suci Dewi Anugrah Agus tri Hascaryo Indra Gunawan Tatok Yatimantoro Weniza Hidayanti Purnomo Hawati wahyu Dwijo Santoso Nurochim Geology Department Institute of Technology Bandung (ITB)J1. Ganesha 10 Bandung 40132 Indonesia Tsunami Mitigation Division - Meteorological Climatologicaland Geophysical Agency (BMKG) J1. Angkasa 1 no 2Kemayoran Jakarta 10720 Indonesia

Age determination of paleotsunami sediment from Lombok Island, Indonesia, and surrounding area has been carried out using the 210 Pb method in BATAN Jakarta. The basic theory of this method assumes that weathering of sediments, including paleotsunami sediments, will result in 210 Pb enrichment. The principle of this method is to calculate 210 Pb contents accumulation in a particular sedimentation interval from the surface to the deeper buried sediments. The results are then converted into age or depositional time in years ago unit. The dating results from the paleotsunami sediments of the Gawah Pudak（S8°46’2.91’’, E115°56’34.23’’） and Gili Trawangan areas（S8°21’1.38’’, E116°2’36.6’’） indicate the Gawah Pudak sediments were deposited 37 years ago（c. in 1977）and 22 years ago（c. in 1992）. Three paleotsunami sediments from Gili Trawangan were deposited 149 years ago（c. in 1865）, 117 years ago（c. in 1897） and 42 years ago（c. in 1972）. These results are then compared to the available Indonesian earthquake catalogue data. This study reveals that paleotsunami sediments around Lombok Islands, from older to younger, were caused by the 1857 earthquake（epicentre in Bali Sea; M7; S8°00’09.45’’,E115°29’56.41’’）, 1897 earthquake（epicentre in Flores Sea;M5.5; S6°47’59.62’’, E120°48’03.5’’ or Sulu Sea earthquake; M8.5; 70 km NW of Basilan Island）, the 1975 earthquake（Nusa Tenggara; S10°6’16.61’’, E123°48’09.39’’）, 1977 earthquake（in Waingapu, Sumba; M8.0;S11°5’39.34’’, E118°27’50.86’’） and the 1992 earthquake（Flores; M7.8; S8°28’52.11’’, E121°53’44.3’’）.

关键词： Age Paleotsunami Sediment ^(210)Pb Earthquake

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Knowledge of coronavirus disease 2019(COVID-19) among healthcare providers: A cross-sectional study in Indonesia

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Asian Pacific Journal of Tropical Medicine 2020年第9期13卷 402-408页

作者： Kurnia Fitri Jamil Wira Winardi Amanda Yufika Samsul Anwar Nurfanida Librianty Nyoman Ananda Putri Prashanti tri Novita Wulan Sari Prattama Santoso Utomo Theresia Dwiamelia Putu Pangestu Cendra Natha Salwiyadi Salwiyadi Febrivan wahyu Asrizal Ikram Ikram Irma Wulandari Sotianingsih Haryanto Nice Fenobileri Abram L.Wagner Mudatsir Mudatsir Harapan Harapan Department of Internal Medicine School of MedicineUniversitas Syiah KualaBanda AcehAcehIndonesia Medical Research Unit School of MedicineUniversitas Syiah KualaBanda AcehAcehIndonesia Tropical Disease Centre School of MedicineUniversitas Syiah KualaBanda AcehAcehIndonesia Department of Pulmonology and Respiratory Medicine School of MedicineUniversitas Syiah KualaBanda AcehAcehIndonesia Department of Family Medicine School of MedicineUniversitas Syiah KualaBanda AcehAcehIndonesia Department of Statistics Faculty of Mathematics and Natural SciencesUniversitas Syiah KualaBanda AcehAcehIndonesia Department of Environmental Health Faculty of Public HealthUniversitas IndonesiaDepokWest JavaIndonesia Bangli Hospital BangliBaliIndonesia Sungai Dareh Hospital DharmasrayaWest SumatraIndonesia Department of Medical Education and Bioethics Faculty of MedicinePublic Health and NursingUniversitas Gadjah MadaYogyakartaIndonesia Panti Rahayu Hospital KarangmojoYogyakartaIndonesia Department of Internal Medicine Faculty of MedicineUniversitas UdayanaDenpasarBaliIndonesia Department of Internal Medicine Sanglah HospitalDenpasarBaliIndonesia Department of Internal Medicine Dr.Zainoel Abidin HospitalBanda AcehAcehIndonesia M Natsir Hospital SolokWest SumatraIndonesia Dr H Yuliddin Away Hospital TapaktuanAcehIndonesia M.Hatta Brain Hospital BukittinggiWest SumatraIndonesia Raden Mattaher Hospital JambiJambiIndonesia Faculty of Medicine and Medical Sciences Jambi UniversityJambiJambiIndonesia Pariaman Hostiptal PariamanWest SumatraIndonesia Department of Epidemiology University of MichiganAnn ArborMichiganUSA Department of Microbiology School of MedicineUniversitas Syiah KualaBanda AcehAcehIndonesia

Objective:To assess healthcare workers’knowledge of novel coronavirus disease 2019(COVID-19)in the early phase of the outbreak in ***:A cross-sectional survey was conducted in 12 hospitals in Indonesia from March 6 to March 25,*** workers’knowledge on COVID-19 was assessed,and demographic data,workplace characteristics,and medical professional characteristics as well as the current local situation of COVID-19 were *** characterize determinants associated with knowledge,a logistic regression analysis was ***:Out of 288 healthcare workers who completed the interview-assisted questionnaire,149(51.7%)respondents had a good *** and other types of healthcare workers had lower odds of having good knowledge compared to doctors:adjusted odds ratio(aO R):0.38;95%CI:0.20-0.72 and aO R:0.31;95%CI:0.13-0.73,*** to healthcare workers who had medical practice experience less than 5 years,those who had worked for more than 10 years had lower knowledge(a OR:0.43;95%CI:0.20-0.90).Healthcare workers who worked in the infection department had higher knowledge compared to those in the emergency room(aO R:14.33;95%CI:3.67-55.88).Conclusions:The knowledge of COVID-19 among surveyed healthcare workers was relatively *** COVID-19 response in Indonesia will require further education and enhancement of the capacity of healthcare workers in the emergency room where COVID-19 patients may be treated the earliest.

关键词： COVID-19 Knowledge Healthcare provider Indonesia

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