Positive and negative impacts of longwall mine subsidence on a sandstone aquifer

1998 ◽  
Vol 34 (2-3) ◽  
pp. 223-233 ◽  
Author(s):  
C. J. Booth ◽  
E. D. Spande ◽  
C. T. Pattee ◽  
J. D. Miller ◽  
L. P. Bertsch
Keyword(s):  
Mine Subsidence ◽  
Sandstone Aquifer ◽  
Negative Impacts ◽  
Longwall Mine ◽  
Longwall Mine Subsidence

scholarly journals A Quantitative Approach to Evaluate Changes in Hydrologic Conditions of Headwater Streams: A Case Study of Restoration and Recovery Following Longwall Mine Subsidence

Hydrology ◽  
2019 ◽  
Vol 6 (3) ◽  
pp. 67
Author(s):  
Joshua M. Silvis ◽  
Brian C. Benson ◽  
Michael L. Shema ◽  
Mark R. Haibach
Keyword(s):  
Longwall Mining ◽  
Headwater Streams ◽  
Assessment Method ◽  
Post Intervention ◽  
Mine Subsidence ◽  
Stream Discharge ◽  
Hydrologic Change ◽  
Longwall Mine ◽  
Longwall Mine Subsidence ◽  
Analytical Approaches

Mine subsidence can induce streambed ruptures that pirate surface water from a stream. Current understanding of the effects of longwall mining on streams lacks rigorous analytical approaches to detect hydrologic effects and does not consider the efficacy of streambed restoration techniques to address flow disruption. CONSOL Pennsylvania Coal Company, LLC (CPCC) collected and analyzed pre-mining, post-mining, and post-restoration stream discharge and flow duration data from 51.9 km of streams overlying its Bailey Mine to define pre-mining flow variability, detect post-mining changes, and evaluate post-intervention flow recovery. The primary intervention method for restoring stream flow was bedrock permeation grouting. Pre-mine and post-mine baseflow data were compared using both parametric and non-parametric hypothesis testing, which yielded similar results. An environmental flow assessment method for headwater streams using probabilistic risk assessment and correlation analysis of change threshold criteria was developed to differentiate hydrologic change as induced by mine subsidence or explained by natural variability. The method is objective, pragmatic, and statistically delimited.

Inclusion of Transgender Voice and Communication Training in a University Clinic

2017 ◽  
Vol 2 (10) ◽  
pp. 109-115 ◽  
Author(s):  
Jennifer Oates ◽  
Georgia Dacakis
Keyword(s):  
Training Program ◽  
Clinical Education ◽  
Well Being ◽  
Evidence Base ◽  
Communication Training ◽  
Speech Language Pathology ◽  
Transgender People ◽  
Language Pathology ◽  
Effectiveness Of Training ◽  
Negative Impacts

Because of the increasing number of transgender people requesting speech-language pathology services, because having gender-incongruent voice and communication has major negative impacts on an individual's social participation and well-being, and because voice and communication training is supported by an improving evidence-base, it is becoming more common for universities to include transgender-specific theoretical and clinical components in their speech-language pathology programs. This paper describes the theoretical and clinical education provided to speech-language pathology students at La Trobe University in Australia, with a particular focus on the voice and communication training program offered by the La Trobe Communication Clinic. Further research is required to determine the outcomes of the clinic's training program in terms of student confidence and competence as well as the effectiveness of training for transgender clients.

Hubungan Pengetahuan Tentang Manajemen Bencana Dengan Prevention Masyarakat Dalam Menghadapi Bencana Gunung Meletus Pada Kepala Keluarga Di Rt 06/Rw 01 Dusun Puncu Desa Puncu Kecamatan Puncu-Kediri

1970 ◽  
Vol 5 (2) ◽  
pp. 01
Author(s):  
Didit Damayanti ◽  
Pria Wahyu R.G ◽  
Muhanni’ah Muhanni’ah
Keyword(s):  
Disaster Management ◽  
Volcanic Eruption ◽  
Sampling Technique ◽  
P Value ◽  
Cross Sectional ◽  
Head Of Household ◽  
Correlational Research ◽  
Level Of Knowledge ◽  
Independent Variable ◽  
Negative Impacts

Introduction: Disaster management is a dynamic, continual, and integrated process as to increase the qualities of the actions which are relevant to the process of observation and analysis of disaster as well as minimalizing the negative impacts, mitigation, readiness, early warning, immediate emergency, rehabilitation and reconstruction. The aim of this research is to analyse theconnection between disaster management and the prevention of community breakdown in order to face a volcanic eruption for every head of household. Method: The design of this research is correlational research with a cross sectional approach. The demographic group that is used for this research is the head of households in Rt 06/Rw 01 dusun Puncu desa Puncu, by using the purposive sampling technique which has been collected from the sampling of the 33 heads of households. Independent variable is the knowledge of disaster management, and the dependent variable is the prevention of community breakdown in the handling of the disaster. The data has been received by using the questionnaire, and the results have been analysed by using spearman rho test. Result:  As according to the statistics test, it is found that p-value= 0,000 on the significant level (α) = 0,05 and r = 0,752. It is concluded that there is a connection between knowledge and the prevention of community breakdown in handling of the volcanic eruption in Rt 06/Rw 01. This research shows that the level of knowledge within the community about disaster management and prevention in handling volcanic eruption has been increasing. Conclution: This is shown by the capability of the community in mitigating the effects of the disaster. It is hoped that the community will further engage in training education and simulation to reduce the negative impacts of a disaster. The location where the participants resideis Kelud Volcano, and it is therefore hoped that the communities are willing to participate in better handling of any disaster by joining the education training and simulation; Kata kunci : Pengetahuan, Manajemen bencana, Prevention.

Study of The Pharmacological Activity and Heavy Metal Content of Eichhornia Crassipes Extract

2019 ◽  
Vol 2 (2) ◽  
pp. 91-95 ◽  
Author(s):  
Jimmy Jimmy ◽  
Diah Indriani Widiputri ◽  
Paulus Gunawan
Keyword(s):  
Heavy Metal ◽  
Pharmacological Activity ◽  
Water Hyacinth ◽  
Metal Content ◽  
Eichhornia Crassipes ◽  
High Light Intensity ◽  
Milling Process ◽  
Heavy Metal Content ◽  
Solvent Ratio ◽  
Negative Impacts

Eichhornia crassipes is well-known as water hyacinth. Water hyacinth grows rapidly in the nutrient-rich water and high light intensity places. The uncontrollable growth of water hyacinth has caused many negative impacts to the environment. For instance, interrupted water transport and decreased population of aquatic lives. The capacity of utilising water hyacinth is slower than water hyacinth growth and water hyacinth is still considered as a threat to theecosystem. This work was focused on the study of the pharmacological activity and heavy metal content of water hyacinth in Lake Cipondoh, Tangerang. Fresh water hyacinth was pre-treated through oven-drying and milling process. After that, each part of the plant was macerated by using multiple extraction method with 96% ethanol/water and three variations of sample-to-solvent ratios (1:30, 1:50, and 1:75 w/v). The result of the experiment showed thatwater hyacinth leaves produced an extract with lowest IC 50 (55.76 ± 6.73 ppm) compared toother parts. The most optimum solvent used to achieve this result was 96% ethanol/water (1:1 v/v). In order to obtain the lowest antioxidant activity, the sample to solvent ratio used was 1:50 and the heavy metal in the extract was very low. With this result, it was concluded that there is a promising opportunity to apply the water hyacinth growing in Lake Cipondoh, Tangerang as herbal medicine ingredient. Through this utilization, the overall number of water hyacinth in Indonesia can be reduced or at the least be controlled, so that the environmental problem caused by this plant can be minimized.

IMPROVEMENT OF NATIONALISM REFLECTED IN PANCASILA'S 3rd SILA THROUGH THE ART OF REOG KENDHANG

2019 ◽  
Vol 1 (2) ◽  
pp. 69
Author(s):  
Andreas Andrie DJATMIKO
Keyword(s):  
Character Education ◽  
National Culture ◽  
Community Service ◽  
Positive Impact ◽  
Planned Change ◽  
Mutual Cooperation ◽  
Social Controls ◽  
Younger Generation ◽  
Negative Impacts ◽  
The Right

Community Service is one of the programs that are needed by the community today. This is done as an effort to respond to the needs of the community and is real program and realistic, especially in the fields of education, social, economic and cultural. Community Service Program is a program that is learning, studying and serving that is realized in the form of introduction and appreciation of community development through the clarity of planned change programs and problem solving methods regarding the ability to choose and use the right skills. A big nation is a nation that wants to respect its culture. Indonesia has a diversity of cultures that are characteristic and assets of the Indonesian nation. But most of the younger generation has forgotten a lot of the culture of the nation. The tendency of the younger generation now prefers outside cultures and many younger generations are less able to sort out most of which have negative impacts rather than a positive impact on themselves and others as well as the environment. There is a need for character education so that the younger generation can be relied upon in the future according to the nation's culture, such as being responsible for mutual cooperation, mutual assistance and good manners. Reog Kendhang's art proves that local culture can increase the sense of community nationalism and be able to become social controls so as not to fall into bad lifestyle. The formation of a national culture that can truly reunite all components of the nation's culture, therefore it is necessary to have a deeper introduction to history and cultural heritage in search of the identity of a pluralistic Indonesian society.

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