In Water High Yield and Selectivity of CH4 and H2 Production from CO2 Using UVC Light and a SiO2-surface-modified TiO2 Photocatalysts
Abstract
1960 9072
In Water High Yield and Selectivity of CH4 and H2 Production from CO2 Using UVC Light and a SiO2-surface-modified TiO2 Photocatalystsby
Abstract
To improve CH4 and H2 formation from CO2 photoreduction using non-organic, non-laborious, and inexpensive photocatalysts, we have prepared two surface-silicate-modified TiO2 catalysts: P25-SiO2 and AmTiO2-SiO2 (amorphous TiO2) to be tested in water and using UV light. The last catalyst produces more CH4 and H2 in water than P25 (3:1 TiO2 anatase: rutile) under UV light irradiation of HCO3- and CO2; am-TiO2-SiO2 at pH = 7, produces 8 times more CH4 and H2 than P25 with selectivity at the reactor headspace of 30% and [...] 1960 9072 |
Experimental and Analytical Studies of an Ultra-high Performance Concrete Beam Using Carbon Fiber Reinforced Polymer BarsAbstract
Infrastructure degradation attributable to concrete deterioration and corrosion of reinforcing steel has been a long-standing challenge to the owners and engineers. This problem becomes more evident when concrete structures are subject to aggressively corrosive environments. The use of advanced materials such as ultra-high performance concrete (UHPC) and carbon fiber reinforced polymer (CFRP) bars has a strong potential to overcome this challenge and help build new infrastructure that is durable and sustainable. Ho [...] 1242 9069 |
Clinical, Theoretical and Conceptual Issues in Chronic Pain and Their Application in a Hypnosis Practiceby
Abstract
Hypnosis interventions consistently produce significant decreases in pain associated with a variety of chronic-pain problems (Elkins, Jensen & Patterson 2007) while neurophysiological studies have shown that specific hypnotic suggestions have clear effects on the brain and spinal cord functioning (Jensen & Patterson 2014; Flynn, 2019). Thus, it isuseful for clinicians who practise hypnotherapy to understand pain paradigms. 2032 9068 |
Reflexes and Shared Intentionality in the Origins of Emotions Development: A Scoping Review of Studies on Blinking in Infantsby
Abstract
This review aims to explore research on the development of emotions in organisms at the simple reflexes substage of the sensorimotor stage of cognitive development. We review the literature on alterations in spontaneous blinking in children under 6 months of age. Then, we extract the data from the selected studies that allow us to examine whether simple reflexes in infants reveal the emotion signature in the altered reflective responses. The significance of this study is that it is the first review to demonstrate t [...] 798 9063 |
Introduction to Genetic ScreeningAbstract
We present here the content and articles of this special issue on genetic screening, putting them in perspective with the field and between themselves. 1914 9060 |
Evolving Conceptualizations: A Commentary on the Varying Perspectives of Self-Compassion in Western PsychologyAbstract
Self-compassion involves being touched by and open to one's own suffering, coupled with the desire to alleviate it and heal oneself with kindness. While self-compassion has gained significant attention in research, certain conceptual and methodological complexities have evolved over time and led to ambiguity surrounding the concept. As such, the overall purpose of this commentary was to highlight and discuss the different perspectives of self-compassion in the literature. We opted to centralize our focus primarily [...] 1012 9058 |
The Use of Sulfur Waste to Protect Against Corrosion of Metal ImplantsAbstract
Metal parts of endoprosthesis have a detrimental effect on the bones that come into contact with them and on the entire body of the patient. Coating them with biocompatible layers (hydroxyapatite and bioglass) has not yet brought about permanent results. In this study, the author showed the possibility of using a binder containing sulfur waste for this purpose. The sulfur binder is used industrially in electrical engineering and construction applications. The chemical properties of elemental sulfur indicate that it [...] 1818 9058 |
A Preparation and Structural Characterization of the Hydrated Trifluoride Salt of the [Co(NH3)6]3+ Cation: [Co(NH3)6]F3 · 2H2O. The Unexpected Preparation of [Co(NH3)6](BF4)(SiF6) from Pyrex Glass, and the Syntheses and Structures of (NH4)[Co(NH3)6](BF4)2(2Cl) and of (NH4)[Co(NH3)6]2(SiF6)3(Cl) · 3H2OAbstract
It is historically interesting to note that, whereas the [Co(NH3)6]3+ cation was isolated by Tassaert in 1798 (which he described as the tri-chloride) and that, in the early days of Coordination Chemistry, Jørgensen and Werner isolated many of its other salts, the fluoride was never reported. In fact, in relatively modern times, lack of success was, invariably, the result of attempting its isolation and full characterization. Significantly, there is no entry for its structure in standard sources such as Inorganic C [...] 1419 9057 |
Association between Sleep Deprivation and Metformin Treatment on Pancreatic and Liver Function in MiceAbstract
Metformin has been widely used as a therapeutic drug for hyperglycemia and diabetes. Sleep is a vital and restorative process that is necessary for the proper functioning of organs. Sleep deprivation can induce multi-organ injury, including damage to the pancreas and liver that may result in hyperglycemia and diabetes. We studied the role of metformin in reversing sleep deprivation-induced hyperglycemia and pancreatic and liver dysfunction in mice. Mice were kept in cages and fed water and food ad libitum. Mice wer [...] 1425 9047 |
A Policy and Evaluation Framework for Sustainable Transitions - An Energy Policy Approachby
Abstract
The climate change and the social crisis launched the basis for the policy discussion about future trajectories of development and sustainability. Innovation policies are expected to promote the transformation of complex socio-technical systems and call for fundamentally different societal production and consumption patterns. This is strictly associated with energy systems and energy policies. A policy framework was conceptualized considering three levels approach: the policy shape at the micro level, the policy co [...] 1262 9045 |
Investigation of the Effect of Aerosol Deposition by Applying Electrostatic FieldsAbstract
Particulate matter (PM) constitutes a significant risk factor for environmental health regarding ambient air quality. An epidemiological investigation has determined that inadequate air quality is associated with the development of lung and cardiovascular diseases, chronic ailments, respiratory infections, and a significant number of fatalities on a global scale. According to the World Health Organization (WHO), the annual mortality rate due to air pollution is around 7 million individuals. The necessity for resear [...] 1130 9038 |
llmenite and Biomass Composite Nanomaterials - A Reviewby
Abstract
Ilmenite is a mineral whose crystallinity can be altered by chemical treatment, producing TiO2 and iron and titanium-based metal nanocomposites, which are applicable mainly for photocatalysis. Porous and crystalline biomass-derived carbon materials include graphene oxide, reduced graphene oxide, graphitic carbon nitride, catalytically graphitized sucrose and chitosan, and activated carbon. Ilmenite-based metal oxides coupled with biomass-based carbon materials are effective in environmental remediation, especially [...] 1533 9029 |
Methanol Synthesis Catalyst Waste as the Principal Component of New Sustainable Cementless Concreteby
Abstract
Methanol synthesis catalyst (MSC) waste was applied as the principal component (till 70 wt.%) of sustainable ceramics in composites with bauxite processing waste (RM), and waste foundry sand (FS). The results of the initial components' chemical interaction studies by a complex of methods (XRD, SEM/EDS/mapping, AAS and LAMMA) during heating demonstrated the synthesis of amorphous glasslike new formation, their filling of pores and compaction of the ceramic’s structure. In this case, a strong chemical and mechanical [...] 1272 9026 |
The End Effector of Ischemic Tolerance Present in Blood Plasma from Double Conditioned Donors Ameliorates Trimethyltin Provoked Damage in BrainAbstract
Background: Many experiments have been done to demonstrate robust ischemic tolerance efficiency using mostly young and healthy animals. However, the translation of these results to usually elderly and sick patients moreover taking many various medicines has to date been disappointing. 3-Methyltin (TMT) poisoning and short-term transient cerebral ischemia cause similar damage, especially, to selectively vulnerable brain regions such as hippocampal CA1 and CA3.
Methods: Using dual conditioning, we activated the full [...] 1738 9025 |
Introduction to the Special Issue on Next Generation Sequencing: Short General Overview of NGSby
Abstract
he publication of the double helix DNA structure in 1953 [1] was the kick-off of numerous efforts to understand and unravel the complexity of the human genome. It took 50 years until the human genome project, based on Sanger sequencing, was completed in 2003 [2]. This was followed by what may be considered a revolution in the field of DNA analysis: the introduction of Next Generation Sequencing (NGS) in 2005 consisting of massively parallel sequencing of DNA fragments which allows the high throughput analysis of la [...] 1966 9019 |
Contactless Detection of Natural Bending Frequencies using Embedded Metallic-Glass Ribbons inside Plastic Beams made of 3-D PrintingAbstract
In the current work, to identify the bending mode harmonics, 30 microns thin magnetoelastic ribbons made of metallic glass are embedded inside 6 mm thick PLA plastic cantilever beams made by 3-D printing. This is possible because the ribbons are of magnetoelastic nature and thus change their mechanical state inducing a corresponding change in their magnetic state. The ribbons are placed at four different depths, starting with zero depth at the beam’s external surface all the way inside to the beam’s mid-plane. This [...] 1815 9017 |
Somaclonal Variation in Callus Cultures of Rose Periwinkle, Catharanthus Roseus L. Under Induced Salt and Osmotic Stressesby
Abstract
The experiment was carried out at the laboratories of the National Commission for Biotechnology in Syria during the period 2020-2022 to detect the somaclonal genetic variation occurring in callus cultures at different ages and to compare them with the In vitro growing plants and introduced species of Rose Periwinkle that grew up in the Syrian environment, in addition, exploring the effect of abiotic stresses in causing genetic variations in callus, by the Inter Simple Sequence Repeats technique (ISSR) using 21 prim [...] 1406 9015 |
Developing a Compassion Focused Supervision Model for Senior Leaders in Educationby
Abstract
This article describes the development and delivery of a novel model of supervision for senior teachers in schools, informed by Compassion Focused Therapy (CFT). It explores whether this model can be considered acceptable and valuable to senior teachers, and is able to be delivered by multiple supervisors using a manual. Surveys, interviews, and focus groups were used to gather feedback about the value and impact of the supervision. Data were gathered from 39 senior teachers across three phases to assess feedback o [...] 1474 9009 |
Substance Use Disorder, Alexithymia, and Personality Disorders, What is the Link? Pilot African Studyby
Abstract
Alexithymia and personality disorders are common in substance use (SUD) patients. This association remains understudied and is considered to hurt the course and management of substance use disorder patients. To determine the prevalence of personality disorders (PD) and alexithymia in addiction care patients. Besides, we targeted investigating a possible link between alexithymia, different personality disorders and clinical aspects of substance use disorder including severity. This cross-sectional study was conducte [...] 1313 9009 |
Effects of a One-Week Intensive Wellness Camp on Dietary Behaviors among Southwest American Indian Youthby
Abstract
American Indians (AI) suffer the highest rates of diabetes in the United States (US); a chronic disease that is increasingly prevalent among AI children and is associated with increased risk of cancer. A summer camp was developed to improve disease risk-reducing behaviors, including diet, among AI youth in Arizona. The aim of this study was to examine the efficacy of a one-week intensive summer health camp conducted from 2016 to 2019 on change in dietary behaviors and compliance for Dietary Guidelines for Americans [...] 1662 9005 |
Entropy and War, Toy ModelsAbstract
This study investigates the relationship between entropy and societal dynamics, with a particular focus on the origins and implications of war. By using entropy as a measure of uncertainty and inequality, the research examines societal stability through patterns of stratification and wealth distribution. Employing simplified models of various wealth distributions, the study explores their effects on social stratification and the potential for conflict. Drawing on historical and contemporary examples, it delves into [...] 892 8986 |
Degradation of Amido Black Dye Using Ultra-Violet Light Catalyzed by Iron Oxide Nanoparticles: Kinetics and Mechanism of Degradationby
Abstract
In this study, we investigated the degradation of amido black dye in an aqueous solution using ultra-violet (UV) light catalyzed by iron oxide nanoparticles (nano-Fe). The nano-Fe was synthesized by sodium borohydride reduction of ferric chloride solution and was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray fluorescence spectrophotometry (XRF). The SEM of the nano-Fe showed regular spherical particles, the XRD examination showed a weak and broad peak at Fe (1 1 0), and the [...] 1553 8982 |
Fall Prevention Knowledge and Attitude Tests-Surveys Used by Staff and Nurses: A Systematic Review of Current LiteratureAbstract
Falls are a serious global public health issue affecting individuals of all ages, resulting in serious injuries, fatalities, and extended hospital stays. While knowledge and attitude of healthcare staff toward fall prevention are understood to impact patient safety, less well known are the type and content of fall prevention surveys used to identify nurses’ knowledge of fall prevention. Until now, no study has systematically reviewed the universe of existing tests, surveys, and programs used to assess fall pr [...] 1298 8977 |
TOP