Judul: Crystal and Optical Properties Testing of Thin  Films of Barium Strontium Titanate (Ba0,4Sr0.6TiO3) Doped with Cuprum (II)  Acetate (Cu(CH3COO)2)
Abstrak: Film tipis Ba0,4Sr0,6TiO3 dengan variasi konsentrasi pendadah tembaga asetat (0, 0,5, dan 1%) pada substrat Si tipe-p (1 0 0) sebanyak lima lapis menggunakan metode Chemical Solution Deposition (CSD) dengan teknik spin coating (3000 rpm, selama 60 detik) dengan konsentrasi 2M telah berhasil di sintesis. Proses annealing ditahan pada suhu 850 oC selama 8 jam dengan kelajuan peningkatan suhu sebesar 1,67 oC/menit. Uji sifat kristal menggunakan XRD dengan metode Cramer-Cohen menunjukkan struktur kristal tetap berbentuk tetragonal dengan nilai parameter kisi yang semakin menurun. Hasil uji sifat oftik menggunakan spektrofotometer UV-Vis pada metode Kubelka-Munk dengan relasi Tauc Plot menghasilkan energi bandgap yang semakin mengecil. Bandgap tersebut berturut-turut 2,30, 2,29, dan 2,26 eV. Sedangkan uji optik menggunakan FTIR dengan relasi Kramers-Kronig diperoleh penurunan bilangan gelombang pada mode vibrasi fonon optik longitudinal (LO), optik tranversal (TO), serta penurunan hasil perpotongan dielektrik real dan imajiner., Thin films of Ba0,4Sr0,6TiO3 with varying concentrations of copper acetate dopant (0, 0.5, dan 1%) on p-type Si (1 0 0) substrates consisting of five layers were successfully synthesized using the Chemical Solution Deposition (CSD) method with spin coating technique (3000 rpm, for 60 seconds) with a concentration of 2M. The annealing process was held at a temperature of 850 oC for 8 hours with a temperature increase rate of 1,67 oC minute. Crystal property testing using XRD with the Cramer-Cohen method showed a tetragonal crystal structure remaining and resulted in decreasing lattice parameter values. Optical property testing using UV-Vis spectrophotometer with the Kubelka-Munk method and Tauc Plot relationship yielded a decreasing bandgap energy with increasing dopant concentration. The bandgap values were sequentially 2,30, 2,29, 2,26 eV. Meanwhile, optical testing using FTIR with the Kramers-Kronig relationship resulted in a decrease in wavenumber in longitudinal optical phonon (LO) vibration mode, transverse optical (TO), as well as a decrease in the real and imaginary dielectric constant intersection results.
Keyword: Ba0.4Sr0.6TiO3, CSD, pendadah tembaga, Ba0.4Sr0.6TiO3, copper dopant, CSD, crystal properties, pendadah tembaga, sifat kristal, sifat optik

Judul: Sintesis dan Karakterisasi Film Tipis Barium Stronsium Titanat (Ba0,5Sr0,5TiO3) didadah Tembaga (II) Asetat (Cu(CH3COO)2)
Abstrak: Film Barium Stronsium Titanat (Ba0,5Sr0,5TiO3) didadah dengan variasi konsentrasi tembaga (II) asetat (0%, 2%, 4%, 6%) telah berhasil disintesis di atas substrat Si (100) tipe-p menggunakan metode CSD melalui spin coating dengan kecepatan putar 8000 rpm. Proses annealing dilakukan pada suhu 8500C dan ditahan selama 8 jam dengan kelajuan suhu sebesar 1,670C/menit, lalu mengikuti proses pendinginan hingga suhu kamar selama 13 jam. Karakterisasi sifat optik film Ba0,5Sr0,5TiO3 dengan konsentrasi pendadah tembaga asetat (0%, 2%, 4%, 6%) memiliki nilai energi bandgap berturut-turut sebesar 3,0862 eV; 2,9690 eV; 2,8080 eV; dan 2,7475 eV. Hasil parameter kisi yang diperoleh pada karakterisasi sifat kristal menggunakan XRD adalah berturut-turut 4,037 Å; 4,021 Å; 4,003 Å; dan 3,980 Å. Berdasarkan analisis Rietveld dengan menggunakan perangkat lunak MAUD sebagai data pembanding menggunakan literatur didapatkan bahwa Ba0,5Sr0,5TiO3 memiliki struktur kristal berbentuk kubus dengan parameter kisi berturut-turut sebesar 3,918 Å; 3,984 Å; 3,983 Å; dan 3,900 Å. Kata kunci: Ba0,5Sr0,5TiO3, Cramer-Cohen, Kubelka-Munk, MAUD, Tembaga (II) Asetat., Barium Stronsium Titanate (Ba0.5Sr0.5TiO3) film doped with variations in copper (II) acetate concentration (0%, 2%, 4%, 6%) has been successfully synthesized on p-type Si (100) substrate using the CSD method through spin coating with rotation speed of 8000 rpm. The annealing process was carried out at 8500C and held for 8 hours at a speed of 1.670C/min, then followed the cooling process to room temperature for 13 hours. Characterization of optical properties of the Ba0.5Sr0.5TiO3 film with the concentration of copper acetate-dopped (0%, 2%, 4%, 6%) had a bandgap energy value repectively 3.0862 eV, 2.9690 eV, 2.8080 eV, and 2.7475 eV. The result of the lattice parameters obtained on the characterization of crystal properties using XRD are 4.037 Å, 4.021 Å, 4.003 Å, and 3.980 Å respectively. Based on Rietveld analysis using MAUD software as comparison data using literature, it was obtained that Ba0.5Sr0.5TiO3 had a cube-shaped crystal structure with lattice parameters value repectively 3.918 Å, 3.984 Å, 3.983 Å, dan 3.900 Å. Keywords: Ba0.5Sr0.5TiO3, Copper (II) Acetate, Cramer-Cohen, Kubelka-Munk, MAUD
Keyword: Ba0.5Sr0, 5TiO3, Copper (II) Acetate, Cramer-Cohen, Kubelka-Munk, MAUD

Judul: Zoonosis yang baru muncul bersumber satwa liar dan tantangan kesehatan masyarakat veteriner
Abstrak: The objective of this scientific writing was to review the emerging infectious diseases (EIDs) which are zoonotic and originate in wildlife causing great negative impacts on public health, economy, social, politic, and national security. Furthermore, factors triggering the emergence and spread of emerging zoonotic diseases and global efforts in anticipating them were discussed in this review. It is recognized that EID are a significant burden on global economies and public health. Their emergence is thought to be driven largely by socio-economic, environmental and ecological factors. EID events are dominated by zoonoses (60.3% of EIDs) and the majority of these (71.8%) originate in wildlife, e.g., severe acute respiratory virus (SARS virus) and Ebola virus. The importance and recognition of wildlife as a reservoir of zoonoses are increasing. Emerging zoonoses (EZs) have been assumed increasing importance in public and animal health. Cost effective prevention and control of these zoonoses need an interdisciplinary and holistic approach and international cooperation. Surveillance, laboratory capability, research, training and education, and communication are key elements. Globalization has created many new challenges, particularly with regard to animal, human, and environmental health. New approaches in prevention, control, and eradication of zoonotic diseases have been developed and introduced worldwide, i.e., one health and ecohealth. The one health concept is a worldwide strategy for expanding interdisciplinary collaboration and communications in all aspects of health care for humans and animals, while ecohealth approach is to improve human health and well-being while simultaneously maintaining a healthy ecosystem.
Keyword: