Development of bambangan (Mangifera pajang) carbonated drink

Mangifera pajang Kostermans or bambangan is a popular fruit among Sabahan due to its health and economic values. However, the fruit is not fully commercialized since it is usually been used as traditional cuisine by local people. Thus, development of bambangan fruit into carbonated drink was conducted to produce new product concept. The objectives of this study were to conceptualize, formulate, evaluate consumer acceptance, and determine physicochemical properties and nutritional composition of the accepted product. Method used in conceptualising the product was based on questionnaire. The consumer acceptance was evaluated based on descriptive and affective tests with four product formulations tested. The physicochemical properties on carbon dioxide volume, colour, pH, total acidity, total soluble solid (TSS) and viscosity were highlighted, meanwhile nutritional composition on fat, protein, carbohydrates and energy content were determined. About 77% respondents gave positive feedback, and 69% respondents decided this product is within their budget. The formulation of 5% bambangan pulp, 70% water, 25% sugar and 0.2% citric acid was highly accepted in descriptive and affective tests with 4.4 and 6.39 mean scores, respectively. The physicochemical properties and nutritional composition of the acceptance product were in optimum value except for colour, total acidity and TSS. Overall, this study showed that the product has high potential to be commercialized as new product concept, and heritage of indigenous people can be preserved when this fruit is known regionally

Diagnosing students' difficulties in learning mathematics

This study considers the results of a diagnostic test of student difficulty and contrasts the difference in performance between the lower attaining quartile and the higher quartile. It illustrates a difference in qualitative thinking between those who succeed and those who fail in mathematics, illustrating a theory that those who fail are performing a more difficult type of mathematics (coordinating procedures) than those who succeed (manipulating concepts). Students who have to coordinate or reverse processes in time will encounter far greater difficulty than those who can manipulate symbols in a flexible way. The consequences of such a dichotomy and implications for remediation are then considered

UPC barcode apps for drug registered verification

In pharmacology, drug is used to prevent and cure diseases and to improve the physical or mental well-being. All medicinal products must be registered with Drug Control Authority (DCA) of Malaysia before being marketed. However, there are still numerous unregistered products being sold in night markets and grocery stalls that contained unknown materials that could harm our bodies. As nowadays most people own smartphones, thus it will be great if the smartphone is being utilized to become a mobile apps that can prevent consumers from buying unregistered products. This study described the process of creating a barcode reader application for drug registered verification. The application is created using Android Studio software, Java programming language and source code from GitHub, which is then synchronized with the database of some medicinal products. The barcode scanner is then tested to read the UPC barcode on the products and the result of registration confirmation will be shown on the screen of the smartphone. Thus, it will aware the user from buying the unregistered products

ANALISIS DEBIT BANJIR DAN TINGGI MUKA AIR SUNGAI MARISA KECAMATAN LIMBOTO BARAT KABUPATEN GORONTALO

Sungai Marisa adalah salah satu sungai yang berada di Kecamatan Limboto Barat, Kabupaten Gorontalo, Provinsi Gorontalo. Sungai Marisa pernah meluap dan menyebabkan kerugian bagi warga yang tinggal di sekitar sungai, rusaknya areal pertanian serta menganggu lalu lintas kendaraan. Oleh karena itu dibutuhkan perhitungan debit banjir dan elevasi tinggi muka air dari Sungai Marisa.Analisis dimulai dengan mencari frekuensi hujan menggunakan metode Log Pearson III. Data hujan yang digunakan berasal dari dua pos hujan, yaitu pos hujan MRG DAS Limboto Datahu dan pos hujan Klimatologi DAS Limboto. Data curah hujan yang digunakan adalah data curah hujan harian maksimum tahun 2009 s/d 2018. Pemodelan hujan aliran pada program komputer HEC-HMS menggunakan metode HSS Soil Conservation Services, dan untuk kehilangan air dengan SCS Curve Number (CN). Untuk aliran dasar (baseflow) menggunakan metode recession. Dilakukan kalibrasi parameter HSS SCS sebelum melakukan simulasi debit banjir dengan menggunakan uji koefisien determinasi (r²). Parameter yang dikalibrasi adalah lag time, curve number, recession constant, initial discharge dan ratio to peak. Untuk batasan setiap parameter disesuaikan dengan nilai standar pada program komputer HEC-HMS. Hasil uji koefisien determinasi (r²) menunjukkan nilai 0,9799. Kemudian dilakukan analisis debit banjir dengan parameter terkalibrasi menggunakan program komputer HEC-HMS. Debit puncak hasil simulasi setiap kala ulang dimasukkan dalam program komputer HEC-RAS untuk simulasi elevasi tinggi muka air pada penampang. Hasil simulasi menunjukkan bahwa semua penampang Sungai Marisa yang ditinjau tidak mampu menampung debit banjir yang terjadi untuk kala ulang 5 tahun, 10 tahun, 25 tahun, 50 tahun, dan 100 tahun. Kata kunci: Sungai Marisa, Debit Banjir, Tinggi Muka Air, HEC-HMS, HEC-RAS

Oscillation of Nonlinear Differential Equations with Advanced Arguments

This paper is concerned with the oscillation of all solutions of the n-th order delay differential equation . The necessary and sufficient conditions for oscillatory solutions are obtained and other conditions for nonoscillatory solution to converge to zero are established

Assessment the Effects of Alpha Particles on Women's Urine using CR-39 NTDs

This research describes the results that have been obtained from the alpha particles after carrying out the present study. The study was conducted on 60 urine samples taken from women, who were either infertile, had weak fertility with 30 urine samples of normal women. The age of those women ranged between (18-47) years. They further belonged to different locations in Iraqi Kurdistan region. values calculated in 20 ml of female urine samples was noted that the average values of concentrations of alpha emitters in 20 ml of urine of women's problem with fertility were 0.371 ppm in Erbil,  0.330 ppm in Sulaymania, and 0.199 for normal women, respectively, The results showed that the concentration of alpha emitters in Erbil > Sulaymania> normal, the number of areas do represent a source of danger to human life. This denotes that there is evidence of health problems. Significant difference found in participants’ laboratory outcomes between Erbil, Sulaymania and normal. Significant correlations (p < 0.001) found between participants’ demographic data and their laboratory outcomes. Also the range of alpha particles in the surface of urine samples and CR-39NTDs was calculated using SRIM program Keywords: infertility in women, Urine, Iraqi Kurdistan region, CR- 39NTDs, Alpha particle

Pengaruh Panjang Segmen Pelat Beton Bertulang Dan Jarak Tumpuan Tiang Terhadap Penulangan Pile Slab

Desain konstruksi jalan raya menggunakan struktur pile slab telah umum penerapannya dan banyak diaplikasikan di negara Indonesia. Demikian pula, analisis yang digunakan juga sudah mengacu pada standar atau peraturan yang disepakati kegunaannya untuk mendesain setiap elemen strukturnya. Peraturan yang dimaksud untuk mendesain adalah peraturan pembebanan untuk jembatan RSNI T-02-2005, karena konstruksi jalan dengan struktur pile slab memiliki keidentikan dengan tipe konstruksi jembatan. Adapun perilaku struktur pile slab dianalisis menggunakan metode portal ekuivalen untuk penentuan gaya-gaya dalamnya. Untuk mengetahui pengaruh perbedaan panjang segmen pelat pada struktur pile slab terhadap hasil perencanaan dimensi dan tulangan, maka dilakukan sejumlah model desain sebanyak 3 (tiga) level panjang segmen pelat berturut-turut 8 m, 10 m dan 12 m dengan kombinasi diameter pilar 0,5 m dan 0,6 m. Sebagai tahap akhir hasil desain, diperoleh jumlah kebutuhan tulangan yang paling efisien adalah segmen pelat 8 m dengan diameter pilar 0,5 m, yaitu tulangan D16 - 100 untuk arah memanjang dan D16 - 200 untuk tulangan arah melintang. Tulangan bagi yang diperlukan adalah D13 - 200 untuk masing-masing arah pelat. Kata