The Sn–Bi solder paste is commonly used in electronic assembly and packaging, but its brittleness causes poor reliability shock environments. In this study, the mechanical of composite with thermosetting epoxy (TSEP Sn–Bi) was investigated board level drop test. crack characterizations joints were evaluated using a stereomicroscope after dye pull microstructure characterization failure types an...

Abstract Introduction Insufficient seal of apex is a significant reason for an endodontist’s disappointment. The materials root-end filling utilized ought to forestall departure possible pollutants into periapical areas. objective this analysis was compare the fixing capacity three materials: white mineral trioxide aggregate (MTA), Portland cement (PC), and Biodentine. This analyzed through tes...

AimsTo evaluate whether melatonin (MT) supplementation during in vitro maturation (IVM) of human oocytes can reverse the age-related decline oocyte quality.Main methodsWe enrolled 172 patients aged ≥35 years (older reproductive-aged women) and 83 <35 (young who underwent fertilization between 2019 2022. We conducted IVM with without 10 μM MT immature different ages. Oocyte embryo development we...

Abstract The cathodic protection uses two-electrode polarization, which requires large currents and substantial voltages. Efforts are being made to identify possibilities for improvements by developing zero-charge corrosion techniques. Studies were performed determine the zero-charges potential effect analyzing signs on reactive metal samples such as pure Mg. Mg fed current/ voltage pulses 120 ...

The current study was aimed to corelates the association of different risk factors with tick infestation rate in livestock (cattle, buffalo, sheep, goat) population district Faisalabad. Ticks were collected through standard collection protocols, identified under stereomicroscope. Overall, 54%, 50%, 50% and 49 % reported from species higher prevalence observed tehsil Tandlianwala (72%, 65%, 70% ...

The aim of this study was to determine the contamination lead (Pb), cadmium (Cd) and microplastic (MP)-like particles in bivalves estimate exposure Thai population these contaminants due bivalve consumption. Clams, mussels cockles were purchased from five wholesale seafood markets located on upper Gulf Thailand during period 2017–2019. Determinations Cd Pb conducted using a graphite furnace ato...

Background: Microleakage is defined as the passage of bacteria, fluid, molecules or ions between cavity walls and restorative material. There are limited studies in literature that have compared microleakage newer materials. Therefore, aim this study to compare evaluate Class II primary molars restored with glass ionomer cement, zirconomer cention N using stereomicroscope. Method: Standardized ...

Background: Zayandeh-rud river is the most important in central regions of Iran and present study aimed to provide new insights into microplastics (MPs) pollution surface water sediments this river. Methods: Water sediment samples were collected July 2021 from 19 sampling sites along Organics matters removed by wet peroxide oxidation (WPO), MPs extracted floatation ZnCl2 -saturated salt filtrat...

The occurrence of paleo-wildfire events during the Campanian age Late Cretaceous is demonstrated in this study for first time with deposits from King George Island, South Shetland Islands, Antarctic Peninsula. With aim providing information that fills important paleoenvironmental and paleobiogeographic gaps about end Gondwana, samples macroscopic charcoal were collected at two different volcani...