The observed lack of twentieth-century warming in the central United States (CUS), denoted here as the “warming hole,” was examined in 55 simulations driven by external historical forcings and in 19 preindustrial control (unforced) simulations from 18 coupled general circulation models (CGCMs). Twentiethcentury CUS trends were positive for the great majority of simulations, but were negative, a...

In this study, CdS, CuS, and Ag 2 S nanoparticles (NPs) were synthesized by a chemical bath procedure in the presence of polyvinyl alcohol (PVA) as polymer stabilizer. Morphological studies followed X-ray diffraction (XRD) atomic force microscopy (AFM) revealed monolithic small size NPs. The average crystalline S, CuS nanocomposites was 18.1, 26.7, 21.7 nm, respectively. UV-Vis absorption photo...

Credit unions (CUs) may respond to a financial shock differently than other types of banks because their unique membership-based governance structure. We exploit the crisis 2008/09 as negative Brazilian and analyze lending behavior CUs in comparison non-CUs subsequent effects on commercial clients' labor force. find that during crisis, tightened members' access credit lesser extent (insurance e...

BACKGROUND The government of Kenya launched its community health strategy in 2006 to improve certain aspects of its community health program. Under the strategy, community units (CUs) were established as level one of the Kenyan health system. A core member at this level is the community health worker (CHW). The objective of this study was to assess the relationship among the performance of the ...

The 2D semimetallic electrodes have been employed to show outstanding contact properties with semiconducting transition‐metal dichalcogenides (TMDCs) channel, leading large enhancement of transistor and phototransistor performance. Herein, an innovative concept is established for a unique electrode‐2D TMDC channel (2D–2D) device configuration where the electronic structures are systematically m...

Abstract Energy efficiency and privacy preserving have become essential for the wireless sensor networks. In this paper, a joint energy time resource allocation problem cognitive users (CUs) in non-selfish symbiotic relaying scheme (NSCRS) is considered. We aim to maximize total (EE) of primary user CUs with consideration information under constraints CUs. With full channel state (CSI), an opti...

Background The assessment of right ventricular function is of great importance in the management of patients with pulmonary hypertension (PH). Our aim is to compare the value of cardiac MRI (CMRI), ultrasonic cardiogram (CUS), multidetector CT (MDCT) in assessing right ventricular function, and to evaluate the correlation between parameters derived by MRI, CUS, MDCT and the indicators of right ...

A facile one-pot solvothermal route using the reaction of sputtered copper film and sulfur powder in ethanol solution at a low temperature of 90 °C for 12 hours has been implemented to in situ synthesize 2D hexagonal copper sulfide (CuS) nanoflakes. Their field electron emission (FE) characteristics were investigated and were found to have a close relationship with the copper film's thickness. ...

CuS-graphene nanosheet (GNS) composites with well-defined morphology have been successfully fabricated via a simple one-pot hydrothermal route by using thioacetamide (TAA) as both the sulfur source and reducing agent. The as-prepared CuS-GNS composites with an appropriate content of graphene exhibited an even higher peroxidase-like catalytic activity than pristine CuS nanoparticles in acetate b...