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Climate change has implications for the environment and community such as the existence of climate-related disasters. The changes of weather cycle triggers flooding in coastal areas, then high water discharge eroded the soil and caused landslides. Land conversion of upstream area causes low water absorption and high run-off which also contributes to flooding and landslides in the downstream area. Efforts to normalize rivers and urban drainage have not been able to cope with floods and landslides. Therefore, it needs an effort to minimize these disasters. The vegetative approach is an alternative for mitigating floods and landslides that are considered more comprehensive which not only conserves landscapes but also contributes to increasing green open space provision. This study aims to analyse the possibility of applying a vegetative approach to improve the physical and socio-economic community’s resiliency in coastal areas from climate-related disasters. The research method used a quantitative method with data collection techniques through literature studies, field observations, and questionnaires. The data processing stages include analysis of the physical condition to determine the physical vulnerability of the area through the physical natural map overlay technique; analysis of the climate-related disasters impact on society through descriptive statistical analysis techniques; and analysis of the possibility of applying the vegetative approach by using spatial analysis techniques to determine the level of vulnerability and priority zones for vegetation development.

The revitalization of The Semarang Old Town revived this area as a tourist destination and generated regional economic growth. Several new restaurants, coffee shops, galleries, and other economic activities emerge along with tourism development. Job vacancies were offered and attracted newcomers to work as well as to invest. Consequently, properties that previously had no economic value became a potential asset, increasing land prices and building rental prices significantly. Hence, gentrification becomes an inevitable phenomenon. Local communities previously inhabited vacant buildings for years were displaced because the buildings would be restored and then rented out. However, these situations changed after the COVID-19 pandemic occurred, that many restrictions on community activities, including tourism. Visitors’ numbers decrease drastically, making many businesses in the Old Town suffer losses. It pointed by several coffee shops and restaurants closed, or they did not extend the rents. In contrast, the number of informal sectors which restricted surged in line with many work terminations. Hence, this study aims to re-assess the gentrification process along with the socio-economic changes after the COVID-19 pandemic. This study used a quantitative method by applying the spatial analysis method, which compares aspects such as physical transformation, space use, land prices, rent prices, land ownership, and population growth before and after the COVID-19 pandemic.

Medan City is one of the largest cities in Indonesia. Geographically, Medan City is located between coordinates 2° 27’ – 2° 47’ North Latitude and 98 35’ – 98° 44’ East Longitude. The regional government of Medan is currently carrying out various efforts to overcome environmental problems in Medan City. This study aimed to analyze priority issues that need to be addressed in Medan City. This study was conducted from May to October 2018. The research consisted of several stages of activities, namely: desk review, public consultation with stakeholders, and data analysis. The desk review was conducted to examine various regulations and documents related to the management of Medan’s natural and environmental resources and the environmental problems of Medan City. Public consultation with stakeholders was carried out with focus group discussions (FGD), filling out online questionnaires, and auditing with stakeholders. Priority issues were analyzed using the Driving Force, Pressure, State, Impact and Response (DPSIR) approach. Based on an integrated approach, the main issues obtained were the main problems in Medan, namely: Garbage, Water quality and quantity, and Air quality. The three main issues require rapid handling to prevent environmental damage in Medan City.

This study aimed to determine exposure time needed by organophosphate pesticides (OPs) to decrease acetilcholinesterase (AChE) activity in wistar rats. Twenty-five male were divided into 5 groups. The control group without OPs exposure (K0), the group exposed to OPs for 1 week (K1), and groups (K2), (K3) and (K4) exposed to OPs for 2,3, and 4 weeks respectively. The blood sample was taken every week and the AChE activity of blood sample was measured using a spectrophotometer. The results showed that AChE activity decreased with the longer OPs exposure time. Exposed treatment for 3 weeks (K3) 162.80 ± 4.56 U/L showed a significant difference (p

The development of telecommunications networks is currently dominated by fiber optics. The fiber optic has become a waveguide medium transmitting information with high frequency bands, high capacity and high speed. An optical amplifier is required to maintain electromagnetic signals when they propagate in far distance. One of the amplifiers, Fiber Raman Amplifiers (FRA) which is the light scattering from the light that comes with the phonon in the lattice of amplification medium produces photons that are coherent with the incoming photons. Many amplifiers are commonly used but the problems not only come from the amplifier but also the component circuit and system. By simulation method, FRA circuit is designed and operated in the form of pre-amplifiers to maintain a better signal from material interference and geometry. The simulation results show that the lowest BER value and the highest Q-factor are found at a distance of 10 km depicted by eye diagram.

The development of the University of Diponegoro as one of the biggest universities in Indonesia is signed by the increasing of the students’ number. The increasing of this students’ number has also been followed by the rising of students’ rooms demand and all of students’ facilities. These students resided in the settled settlement that inhabited by the Tembalang’s local community. As a consequence, their existence influences the local community and shapes the neighbourhood differently. Then, it causes the studentification process. Studentification is a process which presence of the students replaces the local community and influences the neighbourhood both in physical and social economic aspect. The identification of studentification in Tembalang was conductedby in-depth interview and field observation. Analysis showed that studentification in Tembalang included as the third wave studentification that signed by a great students’ movement along with campus centralization in Tembalang and many private landlords that invested in boarding house business. Competition to provide the boarding house between the local community, private investors (individual), students’flat, and a private students’ apartment made the existence of local community more pressed.