Uji Aktivitas Antidementia Minuman Gambir dan Minuman Gambir Kombucha Lokal Bali secara In Vivo

Dementia dapat disebabkan oleh kerusakan oksidatif, dimana antioksidan dapat memperbaiki kerusakan tersebut. Secara in vitro, minuman gambir kombucha lokal Bali memiliki aktivitas antioksidan lebih tinggi dibandingkan minuman gambir (Rupadani, 2013). Penelitian secara in vivo telah dilakukan pada mencit galur Balb/c yang bertujuan untuk menguji aktivitas antidementia minuman gambir dan minuman gambir kombucha lokal Bali. Penelitian ini dilakukan dengan melakukan uji aktivitas antidementia minuman gambir dan minuman gambir kombucha lokal Bali pada dosis 200mg/kgBB dengan metode induksi ECS sebesar 50 mA selama 20 detik lalu dilakukan pengukuran waktu tempuh hewan uji 45 menit setelah induksi. Data yang diperoleh dianalisis secara statistik dengan menggunakan uji Kruskal-Wallis dan uji Mann-Whitney dengan taraf kepercayaan 95%. Hasil penelitian menunjukkan bahwa minuman gambir dan minuman kombucha lokal Bali memiliki potensi aktivitas antidementia pada dosis 200mg/kgBB. Minuman gambir lebih efisien digunakan sebagai antidementia

The Effectiveness of Contract Farming for Raising Income of Smallholder Farmers in Low- and Middle-Income Countries: a Systematic Review

Contract farming is used by an increasing number of firms as a preferred modality to source products from smallholder farmers in low and middle-income countries. Quality requirements of consumers, economies of scale in production or land ownership rights are common incentives for firms to offer contractual arrangements to farmers. Prices and access to key technology, key inputs or support services are the main incentives for farmers to enter into these contracts. There is great heterogeneity in contract farming, with differences in contracts, farmers, products, buyers, and institutional environments. The last decade shows a rapid increase in studies that use quasi-experimental research designs to assess the effects of specific empirical instances of contract farming on smallholders. The objective of this systematic review was to distill generalised inferences from this rapidly growing body of evidence. The review synthesised the studies in order to answer two questions: 1: What is known about the effect size of contract farming on income and food security of smallholder farmers in low- and middle-income countries? 2: Under which enabling or limiting conditions are contract farming arrangements effective for improving income and food security of smallholders

The Effect of Audit Tenure, Audit Rotation and Head Reputation on Audit Quality

This study aims to examine the effect of audit tenure, audit rotation and KAP's reputation on audit quality. The type of data used in this study is secondary data, namely the data of financial statements of manufacturing companies listed on the Indonesia Stock Exchange in the period 2015 - 2018. The research method used is multiple linear regression analysis to test the effect of audit tenure, audit rotation and reputation of the public accountant firm. partial and simultaneous audit quality. Discretionary accruals are used as a proxy for audit quality. The results showed that simultaneous variables of audit tenure, audit rotation and KAP reputation did not significantly influence audit quality. While partially audit tenure and audit rotation have no effect on audit quality, and KAP reputation has a significant effect on audit quality

Telemedicine Technology Application for COVID-19 Patient Tracing Using Smartphone GNSS

In order to cope with a pandemic COVID-19, Indonesia has implemented various measures of public health including contact tracing. This research will integrate three aspects, namely the use of telemedicine for geographic information system, tracking COVID-19 patients using smartphones and diagnosed persons. The three aspects are wrapped in interactive and informative application where users can track their journeys, and communicate directly with the doctors. The geographic information system was built based on statistical analysis of the coronavirus disease (COVID-19) pandemic to determine the factors that affect the number of COVID-19 patients in an area using geographically weighted regression. Later on, this application can provide information about the current conditions, increase data transparency, and used as a tool in assessing a particular policy. This telemedicine application utilizes a map-based geographic information system (GIS) feature to display information. This system also has high security so that it can protect user information and can be accessed easily by users. © Geoinformatics International

Improved pentacene device characteristics with sol-gel SiO2 dielectric films

The interfacial interactions between semiconductors and gate dielectrics have a profound influence on the device characteristics of field effect transistors (FETs). This paper reports on the concept of introducing a sol-gel SiO as inorganic capping layer to significantly improve device characteristics of pentacene-based FETs. The smoother film surfaces of sol-gel SiO (1.9 Å root-mean-square) induced larger pentacene grain sizes, and led to hole mobilities of 1.43 cm/Vs, on-off ratio of 10, and a subthreshold swing of 102 mV/decade when operating at -20 V

Tourism in protected and conserved areas amid the COVID-19 pandemic

The COVID-19 pandemic has had a global impact on the tourism sector. With tourism numbers dramatically reduced, millions of jobs could be lost, and progress made in equality and sustainable economic growth could be rolled back. Widespread reports of dramatic changes to protected and conserved1 area visitation have negative consequences for conservation finances, tourism businesses and the livelihoods of people who supply labour, goods and services to tourists and tourism businesses. This paper aims to share experiences from around the world on the impacts of the COVID-19 pandemic on protected area tourism; and considers how to build resilience within protected area tourism as a regenerative conservation tool