scholarly journals Disaster Resilient Rescue of Coastal Community on Cyclone Warning

2020 ◽  
Author(s):  
Md. Shahin ◽  
Sanjida Akter ◽  
Prome Debnath ◽  
A.K.M. Mostafa Zaman
Keyword(s):  
Global Warming ◽  
Natural Disasters ◽  
Geographical Location ◽  
Specific Area ◽  
Controlled Experiment ◽  
Media Access Control ◽  
Media Access ◽  
Disaster Victims ◽  
The People ◽  
Cyclone Shelter

Bangladesh is in the front line of battlefield of disasters due to geographical location and global warming faced over 200 natural disasters in past 40 years and most of the disasters were cyclones. People need to be evacuated and rescued before a cyclone landfall. In current practice, multipurpose cyclone shelter (MPCS) provides short-term safety for the disaster victims in Bangladesh, where people are rescued after disasters which cannot ensure survival of lives. This study aims to develop a method for efficient evacuation and rescue to reduce death tolls in the events of disasters. This study used Wi-Fi scanner and smartphones to detect people. An inbuilt index that includes name, address, mobile number, photo, service set identifier (SSID), and media access control (MAC) of smartphone was developed for 90 registered participants. In this controlled experiment, few new participants turned on hotspot in every five minutes. A new index of people with MAC/SSID was developed in MPCS simulating an emergency. Missing people were detected by comparing inbuilt index and new index, and ordered them self-evacuation. This method captured 100% evacuees. Most importantly, the proposed method will reduce death tools because the people are rescued earlier to a disaster hits a specific area.

When Mother Earth Rises Up

2013 ◽  
Vol 44 (4) ◽  
pp. 271-277 ◽  
Author(s):  
Simona Sacchi ◽  
Paolo Riva ◽  
Marco Brambilla
Keyword(s):  
Free Will ◽  
Natural Disasters ◽  
Natural Disaster ◽  
Mental States ◽  
Disaster Victims ◽  
Willingness To Help ◽  
Mother Earth

Anthropomorphization is the tendency to ascribe humanlike features and mental states, such as free will and consciousness, to nonhuman beings or inanimate agents. Two studies investigated the consequences of the anthropomorphization of nature on people’s willingness to help victims of natural disasters. Study 1 (N = 96) showed that the humanization of nature correlated negatively with willingness to help natural disaster victims. Study 2 (N = 52) tested for causality, showing that the anthropomorphization of nature reduced participants’ intentions to help the victims. Overall, our findings suggest that humanizing nature undermines the tendency to support victims of natural disasters.

PENERAPAN ALGORITMA K-MEANS UNTUK PENGELOMPOKAN DAERAH RAWAN BENCANA DI INDONESIA

2019 ◽  
Vol 1 (2) ◽  
pp. 1-10
Author(s):  
Amril Mutoi Siregar
Keyword(s):  
Natural Disasters ◽  
Accurate Data ◽  
Disaster Victims ◽  
Central Java ◽  
North Sulawesi ◽  
Natural Beauty ◽  
Or Groups ◽  
Disaster Data ◽  
The Government ◽  
Almost All

Indonesia is a country located in the equator, which has beautiful natural. It has a mountainous constellation, beaches and wider oceans than land, so that Indonesia has extraordinary natural beauty assets compared to other countries. Behind the beauty of natural it turns out that it has many potential natural disasters in almost all provinces in Indonesia, in the form of landslides, earthquakes, tsunamis, Mount Meletus and others. The problem is that the government must have accurate data to deal with disasters throughout the province, where disaster data can be in categories or groups of regions into very vulnerable, medium, and low disaster areas. It is often found when a disaster occurs, many found that the distribution of long-term assistance because the stock for disaster-prone areas is not well available. In the study, it will be proposed to group disaster-prone areas throughout the province in Indonesia using the k-means algorithm. The expected results can group all regions that are very prone to disasters. Thus, the results can be Province West java, central java very vulnerable categories, provinces Aceh, North Sumatera, West Sumatera, east Java and North Sulawesi in the medium category, provinces Bengkulu, Lampung, Riau Island, Babel, DIY, Bali, West Kalimantan, North Kalimantan, Central Sulawesi, West Sulawesi, Maluku, North Maluku, Papua, west Papua including of rare categories. With the results obtained in this study, the government can map disaster-prone areas as well as prepare emergency response assistance quickly. In order to reduce the death toll and it is important to improve the services of disaster victims. With accurate data can provide prompt and appropriate assistance for victims of natural disasters.

IEEE 802.11 Tutorial

2018 ◽  
Author(s):  
Kiramat
Keyword(s):  
Access Control ◽  
Ieee 802.11 ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Local Area ◽  
Physical Layer ◽  
Media Access Control ◽  
Area Network ◽  
Media Access ◽  
Computer Communications

IEEE 802.11 is a set of media access control (MAC) and physical layer (PHY) specifications for implementing wireless local area network (WLAN) computer communications. Maintained by the Institute of Electrical and Electronics Engineers (IEEE) LAN/MAN Standards Committee (IEEE 802). This document highlights the main features of IEEE 802.11n variant such as MIMO, frame aggregation and beamforming along with the problems in this variant and their solutions

Media Access Control Protocol with Differential Service in Aeronautical Frequency-Hopping Ad Hoc Networks

2014 ◽  
Vol 24 (8) ◽  
pp. 2214-2225 ◽  
Author(s):  
Ye-Qun WANG ◽  
Feng YANG ◽  
Guo-Ce HUANG ◽  
Heng-Yang ZHANG ◽  
Jian-Xin GUO
Keyword(s):  
Access Control ◽  
Ad Hoc Networks ◽  
Ad Hoc ◽  
Frequency Hopping ◽  
Media Access Control ◽  
Media Access ◽  
Control Protocol ◽  
Hoc Networks ◽  
Media Access Control Protocol

scholarly journals Performance Analysis of Synchronous Multi-Radio Multi-Link MAC Protocols in IEEE 802.11be Extremely High Throughput WLANs

2020 ◽  
Vol 11 (1) ◽  
pp. 317
Author(s):  
Taewon Song ◽  
Taeyoon Kim
Keyword(s):  
Ieee 802.11 ◽  
Markov Chain Model ◽  
Careful Consideration ◽  
Mac Protocols ◽  
Media Access Control ◽  
Chain Model ◽  
Distributed Coordination ◽  
Media Access ◽  
Medium Access ◽  
Coordination Function

The representative media access control (MAC) mechanism of IEEE 802.11 is a distributed coordination function (DCF), which operates based on carrier-sense multiple access with collision avoidance (CSMA/CA) with binary exponential backoff. The next amendment of IEEE 802.11 being developed for future Wi-Fi by the task group-be is called IEEE 802.11be, where the multi-link operation is mainly discussed when it comes to MAC layer operation. The multi-link operation discussed in IEEE 802.11be allows multi-link devices to establish multiple links and operate them simultaneously. Since the medium access on a link may affect the other links, and the conventional MAC mechanism has just taken account of a single link, the DCF should be used after careful consideration for multi-link operation. In this paper, we summarize the DCFs being reviewed to support the multi-radio multi-link operation in IEEE 802.11be and analyze their performance using the Markov chain model. Throughout the extensive performance evaluation, we summarize each MAC protocol’s pros and cons and discuss essential findings of the candidate MAC protocols.

scholarly journals Context matters in understanding the vulnerability of women: perspectives from southwestern Uganda

2021 ◽  
Vol 79 (1) ◽  
Author(s):  
Neema Murembe ◽  
Teddy Kyomuhangi ◽  
Kimberly Manalili ◽  
Florence Beinempaka ◽  
Primrose Nakazibwe ◽  
...  
Keyword(s):  
Health Workers ◽  
Geographical Location ◽  
Middle Income ◽  
Extreme Poverty ◽  
Economic Class ◽  
Individual Interviews ◽  
Resource Limited ◽  
The People ◽  
The Individual ◽  
Southwestern Uganda

Abstract Background Vulnerability at the individual, family, community or organization level affects access and utilization of health services, and is a key consideration for health equity. Several frameworks have been used to explore the concept of vulnerability and identified demographics including ethnicity, economic class, level of education, and geographical location. While the magnitude of vulnerable populations is not clearly documented and understood, specific indicators, such as extreme poverty, show that vulnerability among women is pervasive. Women in low and middle-income countries often do not control economic resources and are culturally disadvantaged, which exacerbates other vulnerabilities they experience. In this commentary, we explore the different understandings of vulnerability and the importance of engaging communities in defining vulnerability for research, as well as for programming and provision of maternal newborn and child health (MNCH) services. Methodology In a recent community-based qualitative study, we examined the healthcare utilization experiences of vulnerable women with MNCH services in rural southwestern Uganda. Focus group discussions were conducted with community leaders and community health workers in two districts of Southwestern Uganda. In addition, we did individual interviews with women living in extreme poverty and having other conventional vulnerability characteristics. Findings and discussion We found that the traditional criteria of vulnerability were insufficient to identify categories of vulnerable women to target in the context of MNCH programming and service provision in resource-limited settings. Through our engagement with communities and through the narratives of the people we interviewed, we obtained insight into how nuanced vulnerability can be, and how important it is to ground definitions of vulnerability within the specific context. We identified additional aspects of vulnerability through this study, including: women who suffer from alcoholism or have husbands with alcoholism, women with a history of home births, women that have given birth only to girls, and those living on fishing sites. Conclusion Engaging communities in defining vulnerability is critical for the effective design, implementation and monitoring of MNCH programs, as it ensures these services are reaching those who are most in need.

scholarly journals Do Long-Term Natural Disasters Influence Social Trust? Empirical Evidence from China

2021 ◽  
Vol 18 (14) ◽  
pp. 7280
Author(s):  
Yao Li ◽  
Haoyang Li ◽  
Jianqing Ruan
Keyword(s):  
Natural Disasters ◽  
Natural Disaster ◽  
Social Trust ◽  
Geographical Location ◽  
Household Survey ◽  
Flood Frequency ◽  
Psychological Characteristics ◽  
The North ◽  
The Impact

The natural environment is one of the most critical factors that profoundly influences human races. Natural disasters may have enormous effects on individual psychological characteristics. Using China’s long-term historical natural disaster dataset from 1470 to 2000 and data from a household survey in 2012, we explore whether long-term natural disasters affect social trust. We find that there is a statistically significant positive relationship between long-term natural disaster frequency and social trust. We further examine the impact of long-term natural disaster frequency on social trust in specific groups of people. Social trust in neighbors and doctors is stronger where long-term natural disasters are more frequent. Our results are robust after we considering the geographical difference. The effect of long-term natural disasters remains positively significant after we divide the samples based on geographical location. Interestingly, the impact of long-term flood frequency is only significant in the South and the impact of long-term drought frequency is only significant in the North.

Media access control manner with QoS for control network

2008 ◽  
Author(s):  
Lei Zhaoming ◽  
Sun Hexu ◽  
Liu Zuojun ◽  
Liang Tao
Keyword(s):  
Access Control ◽  
Media Access Control ◽  
Control Network ◽  
Media Access ◽  
Control Manner
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