by Wei Wang  , Sa Bi  , Huanhuan Li  and Tiesheng Li

Received: 21 September 2022;  Published: 02 December 2022;  doi: 10.21926/cr.2204042

Fabrication, arrangement, and controllable composition of ordered organometallic films are critical for designing a highly active catalyst and investigating the catalytic mechanism. In this paper, an organometallic terpyridine Pd(II)/Ni(II) monolayer linked on the silicon substrate surface (denoted as Si-Tpy-Pd1/Ni1) was prepared and characterized using water contact angle, ultraviolet spectra, X-ray diffraction, scanning electron microscopy, and X-ray photoelectron microscopy. Si-Tpy-Pd1/Ni1 exhibited high catalyt [...]

by Matthieu Tshanga  , Faidance Mashauri  and Pierre Mashala

Received: 19 September 2024;  Published: 16 April 2025;  doi: 10.21926/aeer.2502019

This study examines the hydrochemical characteristics of groundwater in the Mutoshi mining environment in Kolwezi, Democratic Republic of Congo, addressing gaps in understanding the impact of mining on water quality. Despite the DRC's vast water resources, only 26% of the urban population has access to safe drinking water, with the Mutoshi aquifer, providing over a quarter of Kolwezi's drinking water, facing deterioration due to underlying copper and cobalt-rich geological formations. Groundwater and geological sam [...]

by Galina Huseynova  , Nushaba Aliyeva  and Gular Gasimova

Received: 20 April 2023;  Published: 10 August 2023;  doi: 10.21926/cr.2303021

In the oil distillate fraction alkylation process, a modified Zr zeolite ZSM-5 was obtained and studied. The modification was executed using a method that impregnated ZSM-5 with a 5% solution of ZrOCl2∙6H2O. X-ray diffraction studies were conducted on zeolite ZSM-5, zirconyl chloride modifier ZrOCl2∙6H2O, and modified zeolite ZSM-5-ZrO2, which was calcined at temperatures of 200, 400, and 550°C. The results revealed that the phase composition of modified ZSM-5-ZrO2 zeolite samples varied depending on the calcinatio [...]

by Brian D. Barkdoll

Received: 26 May 2023;  Published: 21 November 2023;  doi: 10.21926/jept.2304037

Global climate change has necessitated the reduction of GHG emissions. Water distribution system (WDS) pumping adds to these emissions and, therefore, should be reduced. Under electricity hourly cost tariffs, utilities are incentivized to pump during the nighttime hours. This can have a deleterious effect, however, on GHG emissions. To quantify this effect, a modeling study of twelve real WDSs was performed with an electricity tariff. The systems all had the typical tank-level-based pump controls but also time-base [...]

by Sofia Oliveira Correia  , Catarina Eusébio  , Ana Sofia Cipriano  , Virginia Lopes  , José Ramón Vizcaíno  , António Cabrita  , Manuela Almeida  , Sofia Pedroso  , Leonidio Dias  , La Salete Martins  and António Castro Henriques

Received: 18 October 2018;  Published: 07 March 2019;  doi: 10.21926/obm.transplant.1901057

Mucormycosis is an angioinvasive and potentially fatal fungal infection caused by ubiquitous filamentous fungi. Cutaneous mucormycosis is an emerging infection and potentially lethal. Our aim was to review the literature on cutaneous mucormycosis. We present a case of a renal transplant patient with a surgical wound infection 20 days after kidney transplant. This case is an example on how early diagnosis is crucial and, since culture is less sensitive, microscopic evaluation of the characteristic broad hyphae is th [...]

by Ellen Kuo  , Esther Belogolovsky  , Sarah Fracci  , Amy Wozniak  , Marina Feffer  , Rachel Klauber  , Theodote K. Pontikes  and Edwin Meresh

Received: 03 October 2022;  Published: 02 March 2023;  doi: 10.21926/obm.neurobiol.2301159

The Coronavirus Disease (COVID-19) pandemic has contributed to a co-occurring psychiatric epidemic. Children and adolescents have been particularly impacted, with disruptions in continuity of learning and healthcare. Psychological stressors such as fear of infection, boredom, decreased socialization, supply shortages, and incomplete information have contributed to low mood, irritability, insomnia, and emotional exhaustion. Our study contributes to this research by quantifying the devastating psychiatric toll that t [...]

by Hazal Turasan  , Tahrima B. Rouf  , Tuncay Yilmaz  and Jozef L. Kokini

Received: 26 October 2022;  Published: 12 June 2023;  doi: 10.21926/rpm.2302023

Nanomaterials are now used in almost every field of science; as conductors and electrodes in electronics, as nanodelivery systems in health screenings and drug delivery, as nanofibrils in filtering and textile industry, as nanoparticles in biosensor fabrication for toxin and pathogen detection, and in packaging materials in the food industry. Synthetic materials and plastics accumulate in the environment causing increasing health concerns for their use in food and pharmaceutical products. Therefore, researchers now [...]

by Aart Heesterman

Received: 29 November 2021;  Published: 28 November 2022;  doi: 10.21926/aeer.2204046

Around 1600 AD the carbon dioxide content of the earth’s atmosphere started to rise, even whilst according to the Milankovitch [1] astronomical theory of climate variation it was due to fall. On the natural earth the carbon dioxide count of the atmosphere is a delayed response and an enhancing feedback on the basic cause of the Milankovitch astronomical cycle, the intensity of the June sunshine. If the Milankovitch cycle had continued its natural course, the medevial cold period known as the little ice age. Human i [...]

by Alicia Brown  , Caitlin Woodcock  , Kelly Cocallis  and Alan Robert Bowman

Received: 26 May 2022;  Published: 14 November 2022;  doi: 10.21926/obm.icm.2204050

Chronic pain affects around 28 million people in the UK. Those living with chronic pain can frequently experience internalised self-stigma and negative self-evaluations as a result of the pain itself and due to difficult life experiences. Previous research has found Compassion Focused Therapy to be effective for people living with long term health conditions like chronic pain. The current study sought to evaluate a routine Virtual Compassionate Living Group for patients with chronic pain on the measures of self-com [...]

by Ya Wen

Received: 28 November 2017;  Published: 05 December 2017;  doi: 10.21926/obm.neurobiol.1704007

More and more studies revealed links amongst neurological disorders, heart diseases and cancers. For example, people with subclinical cardiovascular diseases are at higher risk for Alzheimer's disease, Parkinson’s disease is associated with varied risk of cancer, Autism Spectrum Disorders and cancer have overlapping genes and molecular pathways, heart disease and cancer share common risk factors, etc. It is intriguing how are these conditions that appear to be completely different linked together.