Application of Magneto-optical Characteristic in Liquid: Verdet Constant as Quality Indicator of Repeatedly Cooking Oil

The Faraday Effect is a magnetooptical phenomenon in physics describing the interaction of light and magnetic fields in a medium. A parameter that indicates the interaction is the Verdet constant. In this research, Verdet constant was measured on cooking oil that has been used several times. Magneto-optical properties were measured using the polarimetry method, which uses a He-Ne Laser beam with a magnetic field treatment of 50 gauss, 80 gauss and 100 gauss. The samples analyzed were bulk and non-bulk cooking oil. Repeated use of cooking oil causes a change in the polarization axis of the polarized laser. This has an impact on the Verdet constant of the material. The difference in the Verdet constant shows that the Verdet constant can be used as an indicator of cooking oil that has been used up to three times

Kekuatan pembuktian keterangan saksi dalam permohonan perubahan jenis kelamin (Tinjauan Yuridis Penetapan Nomor 39/Pdt.P/2015/PN.Kln)

Konvesional Transeksualitas atau transgender menurut diagnosis dokter adalah suatu bentuk Gender Dhysporia (kebingungan gender). Gender Dhysporia adalah sebuah term general bagi mereka yang mengalami kebingungan atau ketidaknyamanan tentang gender kelahiran mereka maupun pada saat pertumbuhan dan perkembangannya. Untuk penyelesaian masalah tersebut hukum memberikan kemungkinan untuk menyesuaikan dengan kondisi sesungguhnya dengan cara mengajukan permohonan ke pengadilan untuk ditetapkan perubahan status hukumnya. Seperti halnya Sally Novi Marcelina memiliki dua jenis kelamin, saat dilahirkan memiliki alat kelamin perempuan, tetapi dalam pertumbuhannya muncul dan tumbuh alat kelamin laki-laki serta memiliki ciri-ciri fisik dan psikologis sifat kecenderungannya lebih ke laki-lakian. Penelitian ini bertujuan untuk mengetahui terhadap kekuatan pembuktian keterangan saksi dalam permohonan perubahan jenis kelamin dan Bagaimana akibat hukum dari dikabulkannya perubahan jenis kelamin yang dilakukan oleh Sally Novi Marcelina pada Penetapan Nomor 39/Pdt.P/2015/PN.Kln. Metode penelitian yang digunakan pada penelitian ini adalah Yuridis Normatif yang bersifat Deskriptif, bahan hukum yang digunakan adalah sekunderyang diperoleh dari bahan pustaka dan dalam analisa data menggunakan metode normatif kualitatif. Hasil penelitian yang telah dilakukan menunjukan bahwa keterangan saksi-saksi oleh hakim dinilai mempunyai kekuatan pembuktian karna bersesuaian satu dengan yang lain dan dijadikan dasar untuk mengabulkan permohonan, Akibatnya pemohon mengganti nama dan statusnya pada biodata kependudukan di Lembaga Pencatatan sipi

PEMANFAATAN LIMBAH PRODUKSI ARANG KAYU MENJADI BRIKET ARANG SEBAGAI UPAYA PENINGKATAN KEBERDAYAAN EKONOMI PEDESAAN

ABSTRAKDi Dusun Gunung Giri, yang  terletak di Desa Wonosari, Kecamatan Grujugan, Kabupaten Bondowoso,  terdapat sejumlah UMKM pembuat arang kayu. Arang kayu  biasanya digolongkan menjadi tiga A, B dan C.  Harga arang kayu untuk golongan A  adalah Rp. 2.700 per kg, golongan B adalah Rp. 500 per kg , sedangkan untuk golongan C biasanya dibuang.  Sebetulnya produk arang golongan B dan C dapat diolah lebih lanjut menjadi bentuk briket sehingga  memiliki nilai ekonomis yang lebih tinggi. Program Pengabdian kepada Masyarakat (PKM) dilaksanakan dengan menggunkan metode penyuluhan dan  pelatihan kepada mitra yang berjmlah sekitar 15 orang pengrajin arang yang pada akhir program dilakukan evaluasi berupa kuisioner dan berkonsultasi berkelanjutan untuk pengambangan produk arang kayu yaitu menjadikan arang golongan B dan C menjadi briket arang. Hasil kegiatan pengabdian masyarakat menunjukkan bahwa telah terjadi peningkatan softskill SDM  pengrajin  sebesar lebih dari 80 % dan peningkatan nilai ekonomis dari pembuatan beriket arang sebesar 200 %. Kata kunci: briket; arang kayu; pelatihan; penyuluhan. ABSTRACTIn Gunung Giri Hamlet, which is located in Wonosari Village, Grujugan District, Bondowoso Regency, there are a number of SMEs producing wood charcoal. Wood charcoal is usually classified into three A, B and C. The price of wood charcoal for class A is Rp. 2,700 per kg, group B is Rp. 500 per kg, while for group C it is usually discarded. Actually, the products of group B and C charcoal can be further processed into briquettes so that they have a higher economic value. The Community Service Program (PKM) was carried out using counseling and training methods for approximately 15 partners who were charcoal craftsmen who at the end of the program were evaluated in the form of questionnaires and ongoing consultations for the development of wood charcoal products, namely turning class B and C charcoal into charcoal briquettes. The results of the community service activities show that there has been an increase in the soft skills of craftsmen's human resources by more than 80% and an increase in the economic value of making charcoal beriket by 200%. Keywords: briquettes; wood charcoal; training; counseling

Feeding Stimulates Sphingosine-1-Phosphate Mobilization in Mouse Hypothalamus.

Previous studies have shown that the sphingolipid-derived mediator sphingosine-1-phosphate (S1P) reduces food intake by activating G protein-coupled S1P receptor-1 (S1PR1) in the hypothalamus. Here, we examined whether feeding regulates hypothalamic mobilization of S1P and other sphingolipid-derived messengers. We prepared lipid extracts from the hypothalamus of C57Bl6/J male mice subjected to one of four conditions: free feeding, 12 h fasting, and 1 h or 6 h refeeding. Liquid chromatography/tandem mass spectrometry was used to quantify various sphingolipid species, including sphinganine (SA), sphingosine (SO), and their bioactive derivatives SA-1-phosphate (SA1P) and S1P. In parallel experiments, transcription of S1PR1 (encoded in mice by the S1pr1 gene) and of key genes of sphingolipid metabolism (Sptlc2, Lass1, Sphk1, Sphk2) was measured by RT-PCR. Feeding increased levels of S1P (in pmol-mg-1 of wet tissue) and SA1P. This response was accompanied by parallel changes in SA and dihydroceramide (d18:0/18:0), and was partially (SA1P) or completely (S1P) reversed by fasting. No such effects were observed with other sphingolipid species targeted by our analysis. Feeding also increased transcription of Sptlc2, Lass1, Sphk2, and S1pr1. Feeding stimulates mobilization of endogenous S1PR1 agonists S1P and SA1P in mouse hypothalamus, via a mechanism that involves transcriptional up-regulation of de novo sphingolipid biosynthesis. The results support a role for sphingolipid-mediated signaling in the central control of energy balance

Evaluasi Uji Keturunan Cendana (Santalum Album Linn.) Umur 8 Bulan Di Kabupaten Timor Tengah Utara-Nusa Tenggara Timur

Sandalwood (Santalum album L.), a native plant of Nusa Tenggara Timur, has a very high economic value due to santalol content in the heartwood. Currently the gap between demand and production capability of sandalwood oil is high. Productivity and quality of sandalwood can be increased through a series of tree improvement activities, such as establishing a progeny test to produce genetically improved seed. Balai Penelitian Kehutanan Kupang has established a first generation progeny test of sandalwood at Timor Tengah Utara regency, Nusa Tenggara Timur province to improve the productivity of heartwood, rendemen and santalol contents. The trial was laid out in Incomplete Block Design (IBD) consisting of 65 families, 3 tree-plots, 5 replications with a spacing of 4 x 4 m. This study was aimed to evaluate the growth of sandalwood progeny test at eight months after planting. The result of study showed that average growth of height and diameter are 48.60 cm and 4.55 mm, respectively. The estimates of family and individual heritability for height are 0.06 and 0.03,respectively, while for diameter are 0,16 and 0,10. Genetic correlation between the heightand diameter is 0.87

Analisis Gas Terlarut pada Minyak Isolasi sebagai Indikator Kegagalan Transformator Daya dengan Metode Dissolved Gas Analysis

Transformator daya merupakan peralatan utama dan yang paling penting dalam sistem penyaluran tenaga listrik. Sistem operasional pada transformator daya ini terdapat permasalahan yang umum terjadi seperti kegagalan thermal dan kegagalan elektris. Kegagalan thermal dan elektris umumnya menghasilkan fault gas. Minyak isolasi pada transformator daya selain sebagai pendingin juga berfungsi melarutkan gas-gas akibat kegagalan thermal dan kegagalan elektris. Informasi mengenai adanya indikasi kegagalan pada transformator dapat diperoleh dari hasil identifikasi jenis dan jumlah konsentrasi gas yang terlarut dalam minyak, atau biasa disebut dengan metode Dissolved Gas Analysis (DGA). Metode DGA dapat dilakukan dengan Total Dissolved Combustible Gas (TDCG), Key Gas, Roger’s Ratio, Ratio CO2/CO, dan Duval’s Triangle yang sesuai dengan IEEE std. C57-104.1991 dan IEC 60599. TDCG juga dapat digunakan untuk menentukan jadwal pengujian DGA. Berdasarkan  analisis yang  telah  dilakukan, Transformator Daya II Gardu Induk Tanggul  pada  tahun 2011,2012 dan 2013 dengan metode TDCG transformator dalam kondisi 2, Key Gas diperoleh CO sebagai gas kunci dengan indikasi kegagalan overheating cellulose,Ratio CO2/CO  menunjukkan proses  pemburukan sedang terjadi pada  isolasi kertas akibat kegagalan high thermal dengan temperature > 200°C, Roger’s Ratio terjadi Thermal fault dengan temperature 150 - 300°C  dan Duval’s Triangle berada di luar kriteria evaluasi dan jadwal pengujian DGA selanjutnya adalah tiga bulanan

Random Variable Spaces: Mathematical Properties and an Extension to Programming Computable Functions

This dissertation aims to extend the boundaries of Programming Computable Functions (PCF) by introducing a novel collection of categories referred to as Random Variable Spaces. Originating as a generalization of Quasi-Borel Spaces, Random Variable Spaces are rigorously defined as categories where objects are sets paired with a collection of random variables from an underlying measurable space. These spaces offer a theoretical foundation for extending PCF to natively handle stochastic elements. The dissertation is structured into seven chapters that provide a multi-disciplinary background, from PCF and Measure Theory to Category Theory with special attention to Monads and the Giry Monad. The crux of the dissertation lies in the detailed exploration of Random Variable Spaces. Their mathematical properties are studied, including the establishment of relationships between these spaces through functors based on measurable functions. Additionally, the dissertation investigates the possibility of a fibration between the category of Measurable Spaces (Meas) and Random Variable Spaces. While such a fibration is not found, it offers an alternative fibration after particular alterations are made to Meas. Further, the work culminates in an extension to PCF, introducing computational rules to accommodate random variables. The dissertation provides a formal proof of correctness for these new rules, validating the extended framework\u27s reliability. The dissertation makes contributions to the fields of mathematical logic and computation. It not only extends PCF in a significant manner but also lays the groundwork for future research in Random Variable Spaces and their applicability to the theory of computation. With its focus on allowing PCF to natively handle stochastic elements, this dissertation aims to enrich our understanding of computation in an increasingly complex and probabilistic world