No abstract

Covid-19 merupakan penyakit infeksi pernafasan yang dapat ditularkan melalui percikan batuk dan bersin. Msayarakat di sekitar kampus STIKes Bakti Tunas Husada masih terlihat belum terbiasa menggunakan masker pada saat keluar rumah. Demikian juga upaya preventif pada saat keluar rumah, dengan menyediakan handsanitizer belum tercapai dengan baik dikarenakan harganya semakin meningkat tajam. Tujuan dari pengabdian masayarakat ini adalah untuk memberdayakan masyarakat dalam penggunaan masker dan handsaitizer pada saat keluar rumah. Metode pangabdian yaitu berupa donasi masker dan handsanitizer serta pemaparan cara pemakaiannya secara lisan. Hasil yang diperoleh adalah 100 orang sasaran sudah mendapatkan handsanitizer dan 200 orang mendapatkan masker. Dengan demikian, masyarakat sekitar pada akhrinya dapat menggunakan masker dan perbekalan handsanitizer pada saat keluar rumah.   Kata kunci: masker, handsanitizer, preventif, covid-19

No abstract

No abstract

Pre-diabetes prevalence to diabetes is increasing every year. This pre-diabetes is based on pancreatic β cell disorder and insulin resistance causing abnormalities of body metabolism. However, in pre-diabetes this disorder has not been seen as real. The use of fermented milk in the world of health is very useful because in the milk there are many beneficial microorganisms for the body so it is expected to be an alternative ingredient in prevention earlier in pre-diabetes so as to reduce the adverse effects that occur. Research has been conducted with the aim to find out the effect of fermented milk that is kefir on post prandial blood glucose level on male mice (Mus musculus) Swiss webmaster of pre-diabetes orally. Male mice were made pre-diabetes by giving alloxan 100 mg / kg BW. The samples were 25 mice divided into 5 groups with each of 5 mice, 2 control group were negative and positive control, they left sick and given glibenclamide as much as 0,013 mg / 20 gr BB, treatment group was given various dose of kefir with various variations of 0.32 mg / 20 gr BB, 0.65 mg / 20 gr BB and 1.3 mg / 20 gr BB. The results showed a significant difference (p <0.05) on fasting glucose examination and 2 hours post prandial after administration of kefir with various doses and showed an effect of kefir for blood glucose in mice (Mus musculus) is dosis 1 of 78.28 mg/dl.

Titrasi merupakan metode yang digunakan untuk menentukan kadar suatu zat dengan menggunakan zat lain yang sudah diketahui konsentrasinya dan menggunakan indikator sebagai penanda terjadinya titik akhir titrasi. Terdapat dua jenis indikator, yaitu indikator sintetis dan indikator alami. Indikator yang sering digunakan salah satunya adalah indikator asam basa yang biasanya dapat berubah warna pada keadaan pH tertentu. Penelitian ini bertujuan untuk mengetahui efektivitas konsentrasi etanol dalam mengekstraksi warna kembang telang (Clitoria ternatea L.) yang akan digunakan sebagai indikator asam-basa.Ekstraksi yang dilakukan yaitu dengan cara maserasi (perendaman) oleh berbagai variasi konsentrasi etanol, yaitu 0%, 10%, 30%, 50%, 70% dan 96% selama 8 jam.Dari hasil maserasi menggunakan berbagai konsentrasi etanol didapatkan intensitas warna tertinggi dihasilkan pada konsentrasi etanol 50% dengan nilai absorbansi sebesar 0,587. Ekstrak kembang telang (Clitoria ternatea L.) kemudian diaplikasikan pada titrasi asam basa. Hasil titrasi menunjukkan rentang konsentrasi HCl 0,1000 N yang menggunakan indikator kembang telang yaitu 0,1004 ± 0,0032 dengan persentase kesalahan sebesar 0,4%. Aplikasi Zat warna dari kembang telang dapat diaplikasikan sebagi indikator titrasi asam basa karena kandungan antosianinnya yang dapat berubah sesuai dengan perubahan pH.

Microbial desalination cell (MDC) built on surface modification has been studied for seawater desalination. Herein, the bio-catalytic surface modification for maintenance the long-term MDC performance during desalination process has been developed. The goal of this study is to provide and develop a seawater desalination system without requiring energy support by applying a modification of anode as an electron acceptor, and the different potential charges that occur between anode and cathode can play as driving force for electrodialysis of seawater desalination. Yeast has been applied as biocatalyst, meanwhile neutral red has been chosen as redox mediator to facilitate the electron transport from bioactivity of cells. Several types of surface modification have been conducted, i.e. biocatalyst-mediator immobilization and electropolymerization of NR at the surface of the anode. The optimization of each device has been characterized by cyclic voltammetry, chronoamperometry, and observed in Microbial fuel cell (MFC) prior functioned in MDC. The concentrations of salt ion migration have been determined by Ion Exchange Chromatography. MFC results reported that the best configuration of surface modification was obtained from CF/PNR then applied in MDC. CF/PNR delivered the highly significant performance by having the maximum value of all tested parameters, i.e 42.2% of current efficiency; 27.11% of bio-devices efficiency; 92.5 mA m-2 of current density and also 61% of NaCl transport. The profiles of surface devices have been detected by Scanning electron microscope (SEM) and Energy Dispersive X-ray spectroscopy (EDX). A several spherical shapes around 4 nm within alginate layer have been detected from SEM images and it was confirmed as yeast, meanwhile 5.04% of N has been found from EDX spectrum and was indicated from PNR. The results show that surface modification could be a promising method for bioelectricity generation which simultaneously produces electricity and seawater desalination and provides a green chemistry technology.

No abstract