submitted by tangiersb 11 minutes ago - Topic: Materials
The wear behaviours of 65Mn and 40CrMnSiW steels were investigated by subjecting them to nanoscratch, nanoindentation, and dry sliding wear processes. A simple modified equation for calculating nanoscratch true wear volumes is developed, i.e. the true volumes is closely related to the elastic rec...
submitted by XzavierNi 11 minutes ago - Topic: Materials
Aluminum alloy 2219-T6 was friction stir processed using a novel submerged processing technique to facilitate cooling. Processing was conducted at a constant tool traverse speed of 200 mm/min and spindle rotation speeds in the range from 600−800 rpm. The microstructural characteristics of the b...
submitted by iic 11 minutes ago - Topic: Microbiology
Human milk contains a diverse population of bacteria that likely influences colonization of the infant gastrointestinal tract. Recent studies, however, have been limited to characterization of this microbial community by 16S rRNA analysis. In the present study, a metagenomic approach using Illumi...
submitted by iic 11 minutes ago - Topic: Geography
The limited ability of Oreochromis niloticus to tolerate low temperatures during winter in temperate and some subtropical region, such as in Egypt, is of major economic concern. The present study was aimed to improve the cold tolerance of Nile tilapia, O. niloticus, by using the well documented p...
submitted by lylomahommid 12 minutes ago - Topic: Mathematics
We present a deterministic algorithm to compute the Reeb graph of a PL real-valued function on a simplicial complex in $O(m log {m})$ O ( m log m ) time, where $m$ m is the size of the 2-skeleton. The problem can be solved using dynamic graph connectivity. We obtain the running time by using ...
submitted by rosanna 12 minutes ago - Topic: Mathematics
The Vietoris–Rips filtration is a versatile tool in topological data analysis. It is a sequence of simplicial complexes built on a metric space to add topological structure to an otherwise disconnected set of points. It is widely used because it encodes useful information about the topology of ...
submitted by MatiaRoss 13 minutes ago - Topic: Engineering
Evaluation of compound activity in vitro is crucial to drug discovery efforts and require that the compounds be accurately and reliably titrated and dispensed to the assay wells. The HP D300 dispenser uses inkjet technology to achieve small-volume dispensing that allows concentration-response tes...
submitted by bollyeon 13 minutes ago - Topic: Geography
A problem on Rayleigh wave in a rotating half-space of an orthotropic micropolar material is considered. The governing equations are solved for surface wave solutions in the half space of the material. These solutions satisfy the boundary conditions at free surface of the half-space to obtain the...
submitted by tamfezz 13 minutes ago - Topic: Medicine
Electroacupuncture (EA) has been regarded as an alternative treatment for inflammatory pain for several decades. However, the molecular mechanisms underlying the antinociceptive effect of EA have not been thoroughly clarified. Previous studies have shown that cannabinoid CB1 receptors are related...
submitted by tammol32 13 minutes ago - Topic: Medicine
The types of embryonic development probably provoke different paths of novel threadlike structure (NTS) development. The authors hypothesized that NTS may be easily observed on the surface of swine intestines by using trypan blue staining method and visualization under an optical microscope. Meth...
submitted by webcams 13 minutes ago - Topic: Medicine
Metastasis remains the most deadly aspect of cancer and still evades direct treatment. Thus, there is a great need to develop new treatment regimens to suppress tumor cells that have escaped surgical removal or that may have already disseminated. We have found that tetrandrine (TET) exhibits anti...
submitted by kawhishe 13 minutes ago - Topic: Medicine
Persistent activation of nuclear factor B (NF-B) has been associated with the development of asthma. Galangin, the active pharmacological ingredient from Alpinia galanga, is reported to have a variety of anti-inflammatory properties in vitro via negative regulation of NF-B. This study aimed to in...
submitted by tryitnoow 13 minutes ago - Topic: Philosophy
The goal of this paper is to develop a systematic taxonomy of cognitive artifacts, i.e., human-made, physical objects that functionally contribute to performing a cognitive task. First, I identify the target domain by conceptualizing the category of cognitive artifacts as a functional kind: a kin...
submitted by ReginaldAl 14 minutes ago - Topic: Geography
The electron microprobe (EMP) Th-U-Pb monazite bulk chemical dating method was applied to granulite-facies rocks of the Wilson Terrane in Antarctica. A combination of this method to isotopic U-Pb-SHRIMP ages for the evaluation of metamorphic processes required the analysis of reference monazites....
submitted by nerzor 18 minutes ago - Topic: Mathematics
We establish the existence and uniqueness of solutions for a class of nonlinear Volterra integral and integro-differential equations using fixed-point theorems for a new variant of cyclic -contractive mappings. Nontrivial examples are given to support the usability of our results.