Results 11 to 20 of about 11,704,227 (367)

Survey incentives, survey effort, and survey costs [PDF]

open access: yesFinance and Economics Discussion Series, 2014
This paper uses the 2007 and 2010 waves of the Survey of Consumer Finances (SCF) to investigate how monetary incentives affect the time and effort that interviewers expend during the survey field period, and how these incentives affect effort expended by the survey respondent.
openaire   +1 more source

Discrimination of topsoil environments in a karst landscape: an outcome of a geochemical mapping campaign

open access: yesGeochemical Transactions, 2020
The study presented in this work emerged as a result of a multiyear regional geochemical survey based on low-density topsoil sampling and the ensuing geochemical atlas of Croatia.
Ozren Hasan   +6 more
doaj   +1 more source

Data Report: Molecular and Isotopic Compositions of the Extracted Gas from China’s First Offshore Natural Gas Hydrate Production Test in South China Sea

open access: yesEnergies, 2018
Three hundred gas samples recovered from SHSC-4 during China’s first gas hydrate production test in the South China Sea were examined for gas component and isotopic composition. According to the gas chromatography analysis, all the gas samples from
Jianliang Ye   +10 more
doaj   +1 more source

Experimental Study on the Propagation Characteristics of Hydraulic Fracture in Clayey-Silt Sediments

open access: yesGeofluids, 2021
The low permeability of clayey-silt hydrate reservoirs in the South China Sea affects the thermal and pressure conductivity of the reservoir, which is difficult to spread to the far end of the wellbore and achieve commercial gas production.
Cheng Lu   +8 more
doaj   +1 more source

3D pseudo-lithologic modeling via iterative weighted k-means++ algorithm from Tengger Desert cover area, China

open access: yesFrontiers in Earth Science, 2023
The bedrock beneath the Tengger Desert is covered by Quaternary deposits, making it difficult to directly observe the underlying geological information using traditional geological methods.
Yulong Dong   +8 more
doaj   +1 more source

A design of gold-bearing metallogenic provinces and districts in Brazil

open access: yesJournal of the Geological Survey of Brazil
There is a lack of consensus on how many and which are the Brazilian gold provinces and districts, and what are their limits or configurations. As an effort of the Geological Survey of Brazil to standardize this subject, we present a compilation of the ...
Evandro Klein   +16 more
doaj   +1 more source

Enrichment and exploration of deep lacustrine shale oil in the first member of Cretaceous Qingshankou Formation, southern Songliao Basin, NE China

open access: yesPetroleum Exploration and Development, 2020
Pure shales in the first member of Qingshankou Formation (simplified as Qing 1 Member) in the southern Songliao Basin, i.e., the semi-deep and deep lacustrine shales, are characterized by a high content of clay minerals and poor hydrocarbon mobility ...
Junfeng ZHANG   +6 more
doaj   +1 more source

Assembling mitogenome of Himalayan Black Bear (U. t. laniger) from low depth reads and its application in drawing phylogenetic inferences

open access: yesScientific Reports, 2021
The complete mitogenome of Himalayan black bear (Ursus thibetanus laniger) from Indian Himalayan region was assembled following the modified approach of mitochondrial baiting and mapping using the next-generation sequencing reads. The complete mitogenome
Amrita Bit   +7 more
doaj   +1 more source

Trump Takes NH Lead 8/3/15 [PDF]

open access: yes, 2015
Donald Trump has taken the lead in the New Hampshire Primary race. This marks the first time that any Republican candidate has held a statistically significant lead in the Granite State.
Survey Center, UNH
core   +1 more source

A Quality Improvement Initiative to Standardize Pneumocystis jirovecii Pneumonia Prophylaxis in Pediatric Patients With Solid Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar   +8 more
wiley   +1 more source

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