Addressing The Learning Loss During The Covid-19 Pandemic Through The Adaptation Of Virtual Platforms,
2021
CUNY York College
Addressing The Learning Loss During The Covid-19 Pandemic Through The Adaptation Of Virtual Platforms, Nazrul I. Khandaker, Anika Nawar Mayeesha, Violeta Escandon Correa, Toralv Munro, Andrew Singh, Matthew Khargie, Ality Aghedo, Jasmin Budhan, Krishna Mahabir, Belal A. Sayeed
Publications and Research
The York College-hosted NASA MAA (MUREP AEROSPACE ACADEMY) has always played a pivotal role in minimizing the learning loss during the summer months, which was heightened during the pandemic. Support from AT&T, Con Edison and NASA enabled the MAA program at York College to offer a virtual STEM education with an earth science concentration to 1000 plus underserved K1-12 students from the community last summer, including 160 high school students. Two factors made this endeavor fruitful: allowing additional time to engage in STEM lessons and increasing self-motivation to successfully accomplish assigned tasks. Students built partnerships and resolved technical issues with …
Mgrre_Pureoilscouttickets_Garnett_1_21127017920000,
2021
Western Michigan University
Mgrre_Pureoilscouttickets_Garnett_1_21127017920000, Mgrre
Legacy Scout Tickets from Pure Oil Company
No abstract provided.
Determination Of Sustainable Zones For Groundwater Abstraction From The Multi-Layered Aquifer System In The Bengal Basin, Bangladesh,
2021
Bangladesh Water Development Board
Determination Of Sustainable Zones For Groundwater Abstraction From The Multi-Layered Aquifer System In The Bengal Basin, Bangladesh, Anwar Zahid, Muhammad Qumrul Hassan, Nazrul I. Khandaker
Publications and Research
The use of deep groundwater (±300 m deep) is becoming an important issue in the Bengal Basin, due to both water quality problems and an acute shortage of available water in upper aquifers. In southeastern Bangladesh, multi-layered aquifer conditions exist with arsenic contamination at shallow depths, and high iron and brackish groundwater occurring mainly in the deeper layers. Many previous studies have offered explanations for the high concentrations of dissolved arsenic in groundwater - most of which proposed that the arsenic is derived from geo-genic sources and its release in groundwater is through natural processes, not the result of anthropogenic …
The Importance Of Monitoring To Assess The Impact Of Climate Change On Groundwater Resources In Bangladesh,
2021
The University of Dhaka
The Importance Of Monitoring To Assess The Impact Of Climate Change On Groundwater Resources In Bangladesh, Muhammad Qumrul Hassan, Anwar Zahid, Nazrul I. Khandaker
Publications and Research
Groundwater is the major source of fresh water across much of the world, but there has been very little study on the impacts of climate change on this precious and finite resource. Rising levels of greenhouse gases are likely to increase the global average surface temperature over the next 100 years, raise sea levels and reduce soil moisture. The amount of water stored in the soil is fundamentally important to agriculture and influences the rate of actual evaporation, groundwater recharge and runoff. Rising sea levels would cause the tidal saltwater wedge to intrude further upstream in rivers, with resulting changes …
Multi-Faceted Geoscience Research Using Open Access Resources: The Successful Participation Of K9-16 Students,
2021
CUNY York College
Multi-Faceted Geoscience Research Using Open Access Resources: The Successful Participation Of K9-16 Students, Nazrul I. Khandaker, Noshin Sharmili, Omadevi Singh, Gurwinder Sahota, Sol De Leon, Matthew Khargie, Ali Zarine, Krishna Mahabir, Adacia Teemal, Mildred M. Selby
Publications and Research
Students interested in geosciences, for the most part, missed out their traditional field- based research activities due to strict social distancing, travel restrictions and/or lacking financial support. An absence of physical laboratory opportunities forced students to choose topics deemed doable through online research. Available data from online sources on extreme weather related case studies, flooding, droughts, groundwater depletion in urban and suburban areas, coastal erosion rate, sealevel rise, landslides, earthquakes, volcanic eruptions, and atmospheric pollution became quite handy and lucrative. Readily available pertinent data sources enabled K9-16 students to conduct summer research at “stay home” situations. Selective peer mentoring was …
Assessment Of The Impacts Of Urbanization On Land-Use And Land-Cover Changes Using Remote Sensing And Python At Gazipur District, Bangladesh,
2021
Bangladesh University of Professionals
Assessment Of The Impacts Of Urbanization On Land-Use And Land-Cover Changes Using Remote Sensing And Python At Gazipur District, Bangladesh, Atika Rahman Akji, Nowshin Ahsan Priyanka, Anwar Zahid, Muhammad Qumrul Hassan, Jowaher Raza, Nazrul I. Khandaker
Publications and Research
Urbanization has been the central demographic trend, not only in the Asia-Pacific region, but also for the entire world. Local geo-mapping is the vital tool for analyses of land-use and land-cover. This study attempts to classify land-use in unsupervised settings and create land-cover map by using open-source Landsat data integrated with GIS technologies and other ancillary resources. This work concentrates on Gazipur Sadar (an upazila or sub-district of the Gazipur District in central Bangladesh, part of the Dhaka Division) and Kaliakair, which are rapidly growing unplanned urban and industrial zones. The usage of python coding greatly assisted accomplishing the post-classification …
Statistical Analysis Of Groundwater Level Fluctuation Of The Urban And Peri-Urban Area Of Gazipur District, Bangladesh,
2021
Bangladesh University of Professionals
Statistical Analysis Of Groundwater Level Fluctuation Of The Urban And Peri-Urban Area Of Gazipur District, Bangladesh, Nowshin Ahsan Priyanka, Atika Rahman Akji, Anwar Zahid, Muhammad Qumrul Hassan, Jowaher Raza, Nazrul I. Khandaker
Publications and Research
Groundwater is the primary source for drinking, municipal, irrigation, and industrial water supply in Bangladesh. Due to unplanned urbanization and rapidly growing industries, the degradation situation has become perilous over time. Dhaka and its peri-urban regions are having drastic changes in groundwater (GW) levels. This work reviewed GW level fluctuation in the peri-urban area, which is now severely experiencing the detrimental impact of rapid urbanization and industrialization. Detail statistical investigation and Landsat image interpretation of the study area was conducted. Analysis and prediction of water level trends were conducted using variations of Mann Kendell tests. Gazipur Sadar (an upazila or …
Diffusional Fractionation Of Helium Isotopes In Silicate Melts,
2021
Louisiana State University
Diffusional Fractionation Of Helium Isotopes In Silicate Melts, Haiyang Luo, Bijaya Karki, Dipta B. Ghosh, Huiming Bao
Faculty Publications
Estimating Helium (He) concentration and isotope composition of the mantle requires quantifying He loss during magma degassing. The knowledge of diffusional He isotope fractionation in silicate melts may be essential to constrain the He loss. Isotopic mass dependence of He diffusion can be empirically expressed as D3He/D4He = (4/3)^β, where D is the diffusivity of a He isotope. However, no studies have reported any β values for He in silicate melts due to technical challenges in both experiments and computations. Here, molecular dynamics simulations based on deep neural network potentials trained by ab initio data …
Mgrre_Pureoilscouttickets_Mast, Frank_1_21127017910000,
2021
Western Michigan University
Mgrre_Pureoilscouttickets_Mast, Frank_1_21127017910000, Mgrre
Legacy Scout Tickets from Pure Oil Company
No abstract provided.
Mgrre_Pureoilscouttickets_Morrison, Frank_1_21127017670000,
2021
Western Michigan University
Mgrre_Pureoilscouttickets_Morrison, Frank_1_21127017670000, Mgrre
Legacy Scout Tickets from Pure Oil Company
No abstract provided.
Mgrre_Pureoilscouttickets_Doolittle, A._2_21127017440000,
2021
Western Michigan University
Mgrre_Pureoilscouttickets_Doolittle, A._2_21127017440000, Mgrre
Legacy Scout Tickets from Pure Oil Company
No abstract provided.
Mgrre_Pureoilscouttickets_Copenhaver, Anna_1_21127017430000,
2021
Western Michigan University
Mgrre_Pureoilscouttickets_Copenhaver, Anna_1_21127017430000, Mgrre
Legacy Scout Tickets from Pure Oil Company
No abstract provided.
Mgrre_Pureoilscouttickets_Swinton_1_21127017260000,
2021
Western Michigan University
Mgrre_Pureoilscouttickets_Swinton_1_21127017260000, Mgrre
Legacy Scout Tickets from Pure Oil Company
No abstract provided.
Mgrre_Pureoilscouttickets_Mitchell_5_21127017070000,
2021
Western Michigan University
Mgrre_Pureoilscouttickets_Mitchell_5_21127017070000, Mgrre
Legacy Scout Tickets from Pure Oil Company
No abstract provided.
Mgrre_Pureoilscouttickets_Mitchell_4_21127017060000,
2021
Western Michigan University
Mgrre_Pureoilscouttickets_Mitchell_4_21127017060000, Mgrre
Legacy Scout Tickets from Pure Oil Company
No abstract provided.
Mgrre_Pureoilscouttickets_Mitchell_3_21127016870000,
2021
Western Michigan University
Mgrre_Pureoilscouttickets_Mitchell_3_21127016870000, Mgrre
Legacy Scout Tickets from Pure Oil Company
No abstract provided.
Mgrre_Pureoilscouttickets_Copenhaver, Chas_1_21127016210000,
2021
Western Michigan University
Mgrre_Pureoilscouttickets_Copenhaver, Chas_1_21127016210000, Mgrre
Legacy Scout Tickets from Pure Oil Company
No abstract provided.
Continuous Color Model As A Tool To Improve Speleothem Age Model Development,
2021
University of Oviedo, Spain
Continuous Color Model As A Tool To Improve Speleothem Age Model Development, Celia Campa-Bousoño, Ángel García-Pérez, Ana Moreno, Miguel Iglesias, Hai Cheng, R Lawrence Edwards, Heather Stoll
International Journal of Speleology
Because they can archive a variety of geochemical proxies and be precisely and accurately dated with the U-Th decay series chronometer, stalagmites are widely used for paleoclimate reconstructions. However, limitations in the use of this chronometer arise because U-Th dating is analytically time consuming, expensive, and requires a relatively large sample size. These limitations restrict the number of absolute dates usually obtained, which can result in significant uncertainties in the age model and inhibit the ability to archive high resolution records of environmental variability, particularly in those stalagmites where there are variations in growth rate not constrained by U-Th dates. …
Investigating Epikarst Recharge Dynamics Under Agricultural Landuse Using Hydrometeorological And Isotopic Tracers,
2021
Western Kentucky University
Investigating Epikarst Recharge Dynamics Under Agricultural Landuse Using Hydrometeorological And Isotopic Tracers, Austin Shane Deering
Masters Theses & Specialist Projects
Epikarst systems have complex recharge – discharge processes in telogenetic karst systems, including highly variable storage, flowpaths, and mixing dynamics. This research aimed to characterize the epikarst zone using hydrogen and oxygen isotopic tracers of these processes within south-central Kentucky’s Crumps Cave system located in the Pennyroyal Sinkhole Plain. Data and statistical analyses were applied to highresolution rainfall (RF), lysimeter (10 cm, 20 cm, 30 cm depths), and an epikarst Waterfall 1 (WF1) isotope data collected on a weekly basis between 2011-2018. These data were coupled with WF1 discharge measurements and weather station data collected at Crumps Cave Preserve during …
Evaluating Models For Lithospheric Loss And Intraplate Volcanism Beneath The Central Appalachian Mountains,
2021
Yale University
Evaluating Models For Lithospheric Loss And Intraplate Volcanism Beneath The Central Appalachian Mountains, Maureen D. Long, Lara S. Wagner, Scott D. King, Rob L. Evans, Sarah E. Mazza, Joseph S. Byrnes, Elizabeth A. Johnson, Eric Kirby, Maximiliano J. Bezada, Esteban Gazel, Scott R. Miller, John C. Aragon, Shangxin Liu
Geosciences: Faculty Publications
The eastern margin of North America has been shaped by a series of tectonic events including the Paleozoic Appalachian Orogeny and the breakup of Pangea during the Mesozoic. For the past ∼200 Ma, eastern North America has been a passive continental margin; however, there is evidence in the Central Appalachian Mountains for post-rifting modification of lithospheric structure. This evidence includes two co-located pulses of magmatism that post-date the rifting event (at 152 and 47 Ma) along with low seismic velocities, high seismic attenuation, and high electrical conductivity in the upper mantle. Here, we synthesize and evaluate constraints on the lithospheric …
