Air is an important component for the survival of living things, especially humans. However, air quality has decreased due to pollution. The harmful elements that enter atmosphere are Carbon Monoxide (CO), Nitrogen Dioxide (NO2), Sulfur (SO2), Particulates (PM10), and Ozone (O3). Noise defined as unwanted sound or so it disturbs endangers health. Sources noise divided into moving stationary sou...

This paper offers a short introduction to some of the fundamental results of social choice theory. Topices include: Nash implementability and the Muller-Satterthwaite impossibility theorem, anonymous and neutral social choice correspondences, two-party competition in tournaments, binary agendas and the top cycle, and median voter theorems. The paper begins with a simple example to illustrate th...

This study aims to determine the comparison of service quality perceptions and consumer satisfaction national online food delivery services (Grab Food) local (Cak Ed Food), with a case Grab Food Cak consumers in Lamongan. The research approach used is quantitative-comparative. population were people who had services, while sample was 100 respondents. data analysed using paired T-Test test help ...

Fluorescent staining coupled with flow cytometry (FCM) is often used for the monitoring, quantification and characterization of bacteria in engineered and environmental aquatic ecosystems including seawater, freshwater, drinking water, wastewater, and industrial bioreactors. However, infrequent grab sampling hampers accurate characterization and subsequent understanding of microbial dynamics in...

In order to obtain representative dissolved and solid samples from the aquatic environment, a spectrum of sampling methods are available, each one with different advantages and drawbacks. This article evaluates the use of discrete sampling and time-integrated sampling in illustrating medium-term spatial and temporal variation. Discrete concentration index (CI) calculated as the ratio between di...

The rise of online transportation services is a challenge for companies to offer the best service. This phenomenon one references in research conducted by author. purpose this study was determine effect corporate social responsibility (CSR), electronic word mouth (e-wom) and service quality on customer loyalty. population people who live West Jakarta use Grab/Gojek follow media accounts Faceboo...