Judul: Cognitive Style and Working Memory of The First Year Undergraduate IPB Student
Abstrak: Manusia memiliki dua macam sistem pemrosesan informasi antara lain, gaya berpikir intuitif dan gaya berfikir rasional atau analitik. Working memory adalah sistem memori yang mengatur atensi ketika sedang melakukan suatu perintah. Penelitian ini bertujuan untuk mengetahui cognitive style dan working memory mahasiswa IPB Tingkat Persiapan Bersama (TPB) dan untuk mengetahui kovariasinya dalam mempengaruhi prestasi akademik. Cognitive style ditentukan dengan menggunakan cognitive reflection test (CRT) dan kapasitas working memory ditentukan dengan menggunakan animasi delayed matching to sample task (DMS). Hasil menunjukkan bahwa mahasiswa TPB IPB memiliki gaya berpikir intuitif dan memiliki kapasitas working memory sebesar 66.7%. berdasarkan regresinya, semakin tinggi skor CRT semakin tinggi pula IPK nya. Cognitive style dan working memory memiliki dimensi yang berbeda dalam penggunaannya sehari-hari. Gaya berpikir analitik hanya dibutuhkan untuk mencapai kesuksesan akademik sementara itu working memory sangat dibutuhkan untuk semua aktivitas sehari-hari.
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Judul: The Relationship between Cognitive Style and Personality among IPB University Undergraduate Students
Abstrak: Cognitive style is a way related to how individuals collect, process, and process information. Cognitive styles are classified into intuitive and analytic styles. Cognitive style can associated with aspects of personality, a unique combination of an individual's attitudes, emotions, and behaviors. So far, several studies in foreign countries have shown a correlation between the two, but they have yet to do so on Indonesian students. Therefore, this study examines the relationship between cognitive style and personality among IPB University undergraduate students. Data was collected directly using Google Forms and paper with 440 IPB undergraduate students. Each respondent completed a questionnaire consisting of personal and demographic data, the Cognitive Reflection Test (CRT) to determine cognitive style, and the International Personality Item Pool (IPIP) scale to determine their personality. Data were analyzed using R Studio software and the relationship between cognitive style and personality was analyzed using the Pearson correlation test. This study shows that IPB undergraduate students adopt an intuitive cognitive style (1.06±1.037). Cognitive style correlates significantly with the personality dimension of extraversion but has no significant relationship with the personality dimensions of agreeableness, conscientiousness, neuroticism, and openness to experience.
Keyword: cognitive style, CRT, intuitive-analytic, IPIP, personality

Judul: Pengujian Virus Newcastle Disease Gen VII Isolat Lapang Sebagai Virus Standar Pada Uji Tantang Vaksin
Abstrak: This study was conducted to determine the standard of Newcastle disease virus Gene VII field isolate as a virus challenge to vaccine test. A virus suspension that has previously been tested by HA test then titrated with EID50 using 30 Specific Pathogen Free (SPF) of 10 day old chicken embryonated eggs. In addition, chicken lethal dose50 (CLD50) test were used to determine the virus titer that could cause 50% death of the chicken population. The CLD50 test was used 25 day-old-chickens (DOC) divided into 5 groups. The virus was diluted from 10-1 to 10-8. The 104 to 10-8 dilution of NDV was infected to every group of chicken via eyedrop and intranasal with 0.1 ml/chicken dosage. Haemagglutination test showed that the allantoic fluid were contain high titers of NDV is 512 HAU. The infective NDV that had been titrated by EID50 test showed the virus titers is 109 EID50/0.1 ml or 1010 EID50/ml and the virus titers of CLD50 test e.i 106.48 CLD50/0.1 ml or 107.48 CLD50/ml. These results can be concluded that the NDV Gene VII field isolates were most appropriate to be used as a standard virus to vaccine test
Keyword: Newcastle Disease Virus Gene VII, HA tes, EID50 test, CLD50 test