Public Health and Preventive Medicine Archive

Public Health and Preventive Medicine Archive (PHPMA) adalah jurnal resmi yang dikelola oleh Program Magister Ilmu Kesehatan Masyarakat (MIKM), Program Pascasarjana Universitas Udayana bersama-sama dengan Ikatan Ahli Kesehatan Masyarakat Indonesia (IAKMI) Cabang Bali. PHPMA terbit dua kali dalam setahun yaitu Bulan Juli dan Desember. PHPMA memuat naskah hasil penelitian yang berkaitan dengan kesehatan masyarakat dan kedokteran pencegahan. PHPMA juga menerbitkan review, komunikasi singkat melalui surat kepada editor, tinjauan pustaka, tinjauan kasus serta hasil studi kebijakan (forum kebijakan). Tujuan utama dari PHPMA adalah sebagai media untuk memperluas pengetahuan di bidang kesehatan masyarakat dan kedokteran pencegahan

Cystatin C and lactoferrin concentrations in biological fluids as possible prognostic factors in eye tumor development

Objectives. To investigate the possible role of cystatin C in eye biological fluids locally and in serum and lactoferrin revealing anti-tumor activity in eye tumor development. Background. The increased number of eye tumors was registered recently not only in the countries with high insolation, but also in the northern countries including Russia (11 cases per million of population). Search for new biological markers is important for diagnosis and prognosis in eye tumors. Cystatin C, an endogenous inhibitor of cysteine proteases, plays an important protective role in several tumors. Lactoferrin was shown to express anti-tumor and antiviral activities. It was hypothesized that cystatin C and lactoferrin could serve as possible biomarkers in the diagnosis of malignant and benign eye tumors. Study design. A total of 54 patients with choroidal melanoma and benign eye tumors were examined (part of them undergoing surgical treatment). Serum, tear fluid and intraocular fluid samples obtained from the anterior chamber of eyes in patients with choroidal melanoma were studied. Methods. Cystatin C concentration in serum and eye biological fluids was measured by commercial ELISA kits for human (BioVendor, Czechia); lactoferrin concentration – by Lactoferrin-strip D 4106 ELISA test systems (Vector-BEST, Novosibirsk Region, Russia). Results. Cystatin C concentration in serum of healthy persons was significantly higher as compared to tear and intraocular fluids. In patients with choroidal melanoma, increased cystatin C concentration was similar in tear fluid of both the eyes. Lactoferrin level in tear fluid of healthy persons was significantly higher than its serum level. Significantly increased lactoferrin concentration in tear fluid was noted in patients with benign and malignant eye tumors. Conclusion. Increased level of cystatin C in tear fluid seems to be a possible diagnostic factor in the eye tumors studied. However, it does not allow us to differentiate between malignant and benign eye tumors. Similar changes were noted for lactoferrin in tear fluid

Transferability of Car-Following Models Between Driving Simulator and Field Traffic

During the past few decades, there have been two parallel streams of driving behavior research: models using trajectory data collected from the field (using video recordings, GPS, etc.) and models using data from driving simulators (in which the behavior of the drivers is recorded in controlled laboratory conditions). Although the former source of data is more realistic, it lacks information about the driver and is typically not suitable for testing effects of future vehicle technologies and traffic scenarios. In contrast, driving behavior models developed with driving simulator data may lack behavioral realism. However, no previous study has compared these two streams of mathematical models and investigated the transferability of the models developed with driving simulator data to real field conditions in a rigorous manner. The current study aimed to fill this research gap by investigating the transferability of two car-following models between a driving simulator and two comparable real-life traffic motorway scenarios, one from the United Kingdom and the other one from the United States. In this regard, stimulus–response–based car-following models were developed with three microscopic data sources: (a) experimental data collected from the University of Leeds driving simulator, (b) detailed trajectory data collected from UK Motorway 1, and (c) detailed trajectory data collected from Interstate 80 in California. The parameters of these car-following models were estimated by using the maximum likelihood estimation technique, and the transferability of the models was investigated by using statistical tests of parameter equivalence and transferability test statistics. Estimation results indicate transferability at the model level but not fully at the parameter level for both pairs of scenarios

Cell Cycle- and Cancer-Associated Gene Networks Activated by Dsg2: Evidence of Cystatin A Deregulation and a Potential Role in Cell-Cell Adhesion

This work was supported by grants from the National Institutes of Health (Mahoney, R01AR056067; Riobo, RO1 GM088256). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript

SOIL FERTILITY EVALUATION OF COFFEE (Coffea spp.) PRODUCTION SYSTEMS AND MANAGEMENT RECOMMENDATIONS FOR THE BARAHONA PROVINCE, DOMINICAN REPUBLIC

ABSTRACT Reported yields in most coffee farms of the Barahona province in the Dominican Republic are relatively low (< 290 kg ha -1 parchment coffee). In general, coffee producers do not use diagnostic techniques such as soil testing. This fact prevents them from identifying the limiting factors (especially nutrients), complicates the work of coffee cultural management practices, and potentially reduces productivity and coffee quality. This study was designed to diagnose the fertility level of soils in coffee farms in the area of Barahona in 96 farms within an area of 637 hectares and design a nutrient management strategy. Soils from each farm were sampled and analyzed for soil fertility parameters. A survey was provided to farmers that permitted the collection of information regarding yields, management practices, and landscape features. Soils in the area were predominantly clayey. Soil pH varied between 4.61 and 7.69 and soil organic matter ranged between 3.29 and 10.9%. Exchangeable potassium levels were classified as deficient in all areas. The clustering of results identified two main components, which accounted for 76% of the variability of the data and the grouping into five communities by similarity of features. The results show that soil testing of this coffee coffee-growing region can be used as a tool to diagnose the soil fertility status and guide them in implementing management and fertilization recommendations

Buku Referensi Teori Pertukaran Sosial dalam Perilaku Kelompok

Buku Teori Pertukaran Sosial Dalam Perilaku Kelompok terdiri dari delapan bab meliputi: • Aspek Teoritik dan Fenomena Perilaku Kelompok • Teori Pertukaran Sosial dan Teori Pendukungnya • Perilaku Kelompok • Hipotesis Perilaku Kelompok • Paradigma dan Desain Penelitian • Proses Menguji dan Menganalisis Perilaku Kelompok • Temuan Dalam Perilaku Kelompok • Hasil Akhir dan Kontribusi Perilaku Kelompok Buku Teori Pertukaran Sosial dalam Perilaku Kelompok ini dapat menjadi buku referensi dalam mengkaji dan implementasi teori pertukaran sosial dan teori-teori pendukungnya pada perilaku kelompok, serta dapat berkontribusi pengembangan teori tersebut pada kajian-kajian sejenis di masa yang akan datang

PENERAPAN MODEL PEMBELAJARAN MEANS ENDS ANALYSIS UNTUK MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH DAN DISPOSISI MATEMATIS SERTA MOTIVASI BELAJAR SISWA SEKOLAH MENENGAH ATAS

Nilai matematika yang relatif rendah salah satu penyebabnya adalah rendahnya pemecahan masalah matematika pada siswa. Oleh karena itu, peneliti mengajukan satu alternatif pembelajaran yang diharapkan untuk meningkatkan kemampuan pemecahan masalah matematika siswa yaitu model pembelajaran Means Ends Analysis (MEA). Metode penelitian ini adalah (Mixed Methods) tipe Embeded Design dan penelitian tindakan kelas yang terdiri dari tiga siklus. Populasi dalam penelitian ini adalah siswa SMA Negri 1 Rancaekek dengan sampelnya siswa kelas X SMA Negri 1 Rancaekek menggunakan kelas yang ada. Instrumen dalam penelitian ini berupa tes kemampuan pemecahan masalah matematika, angket, observasi, wawancara, dan dokumentasi. Berdasarkan analisis data, diperoleh kesimpulan bahwa: Kemampuan pemecahan masalah matematika siswa yang memperoleh model pembelajaran Means Ends Analysis lebih baik daripada kemampuan pemecahan masalah matematika siswa yang memperoleh pembelajaran konvensional, Tidak ada perbedaan disposisi matematik dan motivasi belajar siswa yang memperoleh model pembelajara Means Ends Analysis (MEA) dengan siswa yang memperoleh pembelajaran konvensional. Kata Kunci: Means Ends Analysis, Kemampuan Pemecahan masalah Matematik, Disposisi Matematik, dan Motivasi Belajar Sisw