Judul: Prevalensi Infeksi Endoparasit pada Anjing di Klinik Monsabel Medan Periode Januari - Desember 2021
Abstrak: Anjing atau Canis familiaris merupakan salah satu hewan yang dapat hidup berdampingan dengan manusia. Infeksi parasit cacing merupakan salah satu masalah kesehatan yang umum dijumpai pada anjing. Penelitian ini bertujuan mengukur prevalensi infeksi endoparasit dan infeksi cacing pada anjing serta faktor risiko kejadian kecacingan dan tindakan preventif untuk mencegah infeksi cacing. Pengambilan data rekam medikpasien anjing dilakukan di klinik Monsabel Medan pada Januari sampai Desember 2021. Total kasus infeksi cacing pada anjing berjumlah 68 kasus dari 2828 total seluruh pasien anjing. Data dianalisis secara deskriptif kuantitatif. Prevalensi infeksi cacing pada anjing di klinik Monsabel Medan pada Januari – Desember 2021 sebesar 2,41%. Faktor risiko infeksi cacing pada anjing adalah jenis kelamin.dan umur. Antelmintik yang mengandung bahan aktif seperti febantel, pyrantel pamoat, dan praziquantel digunakan sebagai tindakan preventif untuk mencegah infeksi cacing., Dog or Canis familiaris is one of the animals that can live with humans. Parasitic helminth infection are one of the most common health problems in dogs. The aim of this study is to determine the prevalence of dog endoparasite infection and helminth infection in dogs as well asthe risk factors for helminthiasis and preventive behaviors to avoid helminth infections. Medical records of canine patients were collected at the Monsabel clinicin Medan from January to December 2021. The total number of cases of helminth infection in dogs was 68 cases out of 2828 total canine patients. The datawere analyzed descriptively and quantitatively. The prevalence of helminth infection in dogs at the Monsabel clinic Medan from January to December 2021 was 2.41%. The risk factor for helminth infection in dogs is gender and age. Anthelmintics containing active ingredients such as febantel, pyrantel pamoate, andpraziquantel are preventive measures to prevent helminth infections.
Keyword: dogs, anthelmintic, helminth infection

Judul: Parasitic Case in Dogs and Cats at Animal Hospital of West Sumatra
Abstrak: Anjing dan kucing merupakan hewan domestikasi yang paling banyak dipelihara manusia. Salah satu kasus penyakit yang sering menyerang anjing dan kucing adalah kasus parasitik. Beberapa parasit memiliki potensi zoonosis, baik melalui kontak dengan hewan yang terinfeksi maupun melalui lingkungan yang terkontaminasi. Penelitian ini bertujuan mengetahui keberagaman jenis, prevalensi, serta pemetaan penyebaran wilayah infestasi ektoparasit dan endoparasit pada anjing dan kucing yang tercatat di Rumah Sakit Hewan Sumatera Barat. Seluruh data diperoleh dari rekam medik pasien anjing dan kucing di Rumah Sakit Hewan Sumatera Barat berdasarkan pemeriksaan klinis dan pemeriksaan laboratorium sejak November 2018 sampai Oktober 2020 yang terdiri atas 1275 pasien anjing dan 13.103 pasien kucing. Hasil penelitian menunjukan jumlah kasus parasit yang ditemukan pada anjing sebanyak 157 dan kucing sebanyak 1704. Kasus parasitik disebabkan ektoparasit dan endoparasit. Prevalensi infeksi ektoparasit lebih tinggi daripada infeksi endoparasit. Kejadian helmintiasis lebih besar dibandingkan penyakit yang disebabkan protozoa. Pada kucing ditemukan ektoparasit yang menginfestasi terbanyak adalah Otodectes cynotis dan Sarcoptes scabiei, sedangkan pada anjing adalah Demodex sp. Sebaran infestasi ektoparasit dan infeksi endoparasit baik pada pasien kucing maupun anjing di wilayah Kota Padang tertinggi berada di Kecamatan Padang Timur., Dogs and cats are domestic animals that are mostly kept by humans being. One of the disease cases that often attack dogs and cats is parasitic cases. Some parasites have zoonotic potential, either through contact with infected animals or contaminated environments. This study aims to determine the diversity of species, prevalence, and distribution of ectoparasite and endoparasite infestation areas in dogs and cats recorded at the Animal Hospital of West Sumatra. All data were obtained from medical records of dog and cat patients at the Animal Hospital of West Sumatra based on clinical examination and laboratory examination from November 2018 until October 2020, consisting of 1275 dog and 13,103 cat. The results showed that there were 157 cases of parasites found in dogs and 1704 cats. Parasitic cases are caused by ectoparasites and endoparasites. Prevalence ectoparasites infection were higher than endoparasites infection. Helminthiasis incidence is greater than diseases caused by protozoa. In cats, it was found that the most infested ectoparasites by Otodectes cynotis and Sarcoptes scabiei. Whereas in dogs by Demodex sp. The distribution of ectoparasite and endoparasite infestations in both dogs and cats in Padang city is highest in East Padang District.
Keyword: Anjing, kucing, parasit, zoonosis

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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