Explore the vast range of titles available.

Catalytic solvent regeneration has attracted broad interest owing to its potential to reduce energy consumption in CO 2 separation, enabling industry to achieve emission reduction targets of the Paris Climate Accord. Despite recent advances, the development of engineered acidic nanocatalysts with unique characteristics remains a challenge. Herein, we establish a strategy to tailor the physicochemical properties of metal-organic frameworks (MOFs) for the synthesis of water-dispersible core-shell nanocatalysts with ease of use. We demonstrate that functionalized nanoclusters (Fe 3 O 4 -COOH) effectively induce missing-linker deficiencies and fabricate mesoporosity during the self-assembly of MOFs. Superacid sites are created by introducing chelating sulfates on the uncoordinated metal clusters, providing high proton donation capability. The obtained nanomaterials drastically reduce the energy consumption of CO 2 capture by 44.7% using only 0.1 wt.% nanocatalyst, which is a ∽10-fold improvement in efficiency compared to heterogeneous catalysts. This research represents a new avenue for the next generation of advanced nanomaterials in catalytic solvent regeneration. Catalytic solvent regeneration is of interest to reduce energy consumption in CO2 separation, however, the development of engineered nanocatalysts remains a challenge. Here, a new avenue is presented for the next generation of advanced metal-organic frameworks (MOFs) in energy-efficient CO2 capture.

IntroductionCancer and its treatment often impose physical and psychological consequences. Children with cancer are not only at a risk of adverse events resulting from medical procedures but also severe effects on their social and mental health as a result of its treatment. Depression being one of the most common psychiatric disorders associated with cancer in children and adolescents. The current study aims to provide evidence of an easy and inexpensive intervention that can be used in oncology patients in a low resource setting to help maintain mental health stability in pedriatric patients..ObjectivesTo examine the effectiveness of therapeutic group art therapy, in reducing depression scores in children with cancer.MethodsThe study is quasi experimental, through convinient sampling data of fifteen children in initial stage of thier treatment were selected. They were divided into two groups experimental and controlled through random allocation. Three sessions of forty minutes of group art therapy was given in experimental group, in control normal treatment was provided excluding group art therapy. Childhood Depression Scale (CDI) was used in both group as pre and post test to determine the depression level.ResultsThe results shows a positive change in the level of depression in experimental group as compared to controlled group.ConclusionsGroup art therapy is an effective and inexpensive way of reducing depression level of paediatric leukemia patients that can be used by oncology healthcare centres worldwide with trained mental healthcare professionals in order to maintain positive treatment results of cancer.

With advances in 3D printing technology, now honeycomb structures can be made with virtually unlimited unit cell geometries and cell arrangements giving a wide range of possible mechanical properties. However, studies on such structures have been mainly limited to the hexagonal honeycombs with little work done on other cell geometries. This paper investigates the effect of unit cell geometry on the in-plane compressive response and energy absorption behaviour of honeycombs using full-scale non-linear numerical simulations. Nine types of honeycombs are designed from different unit cell shapes, but having the same relative density. Finite element analysis is used to simulate the honeycombs’ behaviour under uniaxial compression loading. The results showed that unit cell geometry and cell arrangement affect the honeycombs’ compressive response significantly and provide different energy absorption characteristics. This comparison study shows that the honeycombs in which the deformation mode is dominated by bending of cell edges present a lower stiffness (effective modulus) and compressive strength, but a smoother plateau stress. The honeycombs having their deformation mode dominated by plastic buckling present a higher stiffness with less stable and undulated plateau stress. The results of this study provide more understanding in predicting the global behaviour of honeycomb structures and their energy absorption characteristic through their micro-topology. The effect of cell shape and its arrangement on the selection of honeycombs for energy absorption application is discussed and a methodology is proposed to balance the energy absorption with maximum transmitted stress, which is crucial for energy-absorbing design of structures.

Photons, as quanta of electromagnetic fields, determine the electromagnetic properties of an extremely hot and dense medium. Considering the properties of the photons in the interacting medium of charged particles, we explicitly calculate the electromagnetic properties such as the electric permittivity, magnetic permeability, refractive index and the propagation speed of electromagnetic signals in an extremely hot and dense background. Photons acquire a dynamically generated mass in such a medium. The screening mass of the photon, the Debye shielding length and the plasma frequency are calculated as functions of the statistical parameters of the medium. We study the properties of the propagating particles in astrophysical systems of distinct statistical conditions. The modifications in the properties of the medium lead to the equation of state of the system. We mainly calculate all these parameters for extremely high temperatures of the early universe.

Bone and lung metastases are responsible for the majority of deaths in patients with breast cancer. Following treatment of the primary cancer, emotional and psychosocial factors within this population precipitate time to recurrence and death, however the underlying mechanism(s) remain unclear. Using a mouse model of bone metastasis, we provide experimental evidence that activation of the sympathetic nervous system, which is one of many pathophysiological consequences of severe stress and depression, promotes MDA-231 breast cancer cell colonization of bone via a neurohormonal effect on the host bone marrow stroma. We demonstrate that induction of RANKL expression in bone marrow osteoblasts, following β2AR stimulation, increases the migration of metastatic MDA-231 cells in vitro, independently of SDF1-CXCR4 signaling. We also show that the stimulatory effect of endogenous (chronic stress) or pharmacologic sympathetic activation on breast cancer bone metastasis in vivo can be blocked with the β-blocker propranolol, and by knockdown of RANK expression in MDA-231 cells. These findings indicate that RANKL promotes breast cancer cell metastasis to bone via its pro-migratory effect on breast cancer cells, independently of its effect on bone turnover. The emerging clinical implication, supported by recent epidemiological studies, is that βAR-blockers and drugs interfering with RANKL signaling, such as Denosumab, could increase patient survival if used as adjuvant therapy to inhibit both the early colonization of bone by metastatic breast cancer cells and the initiation of the \"vicious cycle\" of bone destruction induced by these cells.

Direct Air Capture is a promising climate mitigation technology, but its deployment is limited by high energy demand. This study improves the energy efficiency and sustainability of liquid-based Direct Air Capture by integrating catalytic solvent regeneration and hybrid solvents with a low-temperature membrane vacuum regeneration process. Iron-sulfated zirconia catalysts supported on alumina and silica are synthesized and evaluated, with silica exhibiting superior catalytic performance. An optimal iron-sulfated zirconia to silica ratio of 1:1 reduces relative heat duty by up to 59.7% in the membrane vacuum system. To assess the impact of hybrid solvents on energy consumption, a solvent composed of 3 molar potassium taurinate and 1 molar potassium sarcosinate achieves a 69.1% improvement in CO 2 desorption compared to potassium taurinate alone. Finally, combining the optimized hybrid solvent, catalyst, and membrane system at 90 °C reduces thermal energy consumption by 66.8% relative to potassium glycinate, achieving an energy requirement of 2.6 GJ/tCO 2 . Direct air capture (DAC) removes CO₂ from the atmosphere but remains energy-intensive at scale. Here, the authors integrate catalytic solvent regeneration and hybrid solvents with low-temperature membrane vacuum regeneration, significantly improving the energy efficiency and sustainability of liquid-based DAC systems.

Abstract Three hundred and twenty day old Hubbard broilers were randomly allocated to four treatments (8 replicates, 10 birds/pen) and were raised under standard management conditions. Birds in the first group served as control and were fed a corn based diet, while birds in the remaining three groups i.e.; A, B and C were fed with a basal diet supplemented with copper nanoparticles (CuNP) at 5, 10 and 15 mg /kg of diet respectively for 35 days. Supplementation of CuNP linearly increased (P≤0.05) body weight (BW), average daily weight gain (ADWG) and feed intake (FI) in broilers. Uric acid, glucose levels in blood and feed conversion ratio (FCR) reduced linearly (P≤0.05) with CuNP supplementation in diet. Supplementation of CuNP in the diet also linearly increased (P≤0.05) tibia weight, length, diameter, weight/length index (W/L) and Tibiotarsal index (TT index). Inclusion of CuNP in broilers diet linearly increased the measured parameters of muscle i.e.; pH, fiber diameter, fiber cross-sectional area, fascicle diameter, fascicle cross-sectional area (P≤0.05). Concentration of copper, iron, calcium and phosphorous in blood also increased line-arly (P ≤ 0.05) with CuNP supplementation. Overall, CuNP positively affected the growth performance, histological characteristics of muscles, bone strength and serum metabolites in broilers. Resumo Frangos de corte Hubbard com 320 dias de idade foram alocados aleatoriamente em quatro tratamentos (8 repetições, 10 aves/curral) e foram criados em condições de manejo padrão. As aves do primeiro grupo serviram como controle e foram alimentadas com uma dieta à base de milho, enquanto as aves dos três grupos restantes, ou seja, A, B e C, foram alimentadas com dieta basal suplementada com nanopartículas de cobre (CuNP) a 5, 10 e 15 mg/kg de dieta, respectivamente, por 35 dias. A suplementação de CuNP aumentou linearmente (P ≤ 0,05) o peso corporal (PC), o ganho de peso médio diário (GPDA) e o consumo de ração (FI) em frangos de corte. O ácido úrico, os níveis de glicose no sangue e a conversão alimentar (TCF) reduziram linearmente (P ≤ 0,05) com a suplementação de CuNP na dieta. A suplementação de CuNP na dieta também aumentou linearmente (P ≤ 0,05) peso, comprimento, diâmetro, índice peso/comprimento (P/L) e índice tibiotársico (índice TT) da tíbia. A inclusão de CuNP na dieta de frangos de corte aumentou linearmente os parâmetros medidos de músculo, ou seja; pH, diâmetro da fibra, área da seção transversal da fibra, diâmetro do fascículo, área da seção transversal do fascículo (P ≤ 0,05). A concentração de cobre, ferro, cálcio e fósforo no sangue também aumentou linearmente (P ≤ 0,05) com a suplementação de CuNP. No geral, CuNP afetou positivamente o desempenho de crescimento, características histológicas dos músculos, resistência óssea e metabólitos séricos em frangos de corte.

IntroductionAttachment styles play important role in managing health behavior. It has been observed in researches that attachment style have relationship with health behavior (Schlack, 2003). If attachment styles are left the way they form habitually it can be harmful, in a study with diabetic patients, people with avoidant attachment style were expected to die within 5 years of disease diagnosis (Ciechanowski et al., 2010).ObjectivesTo assess effect of adult attachment styles on health behavior?MethodsSample comprised of 300 university students from different private and government universities of Karachi with age range 18 – 35 years. Assessment tools used are relationship questionnaire and wellness behavior inventory scale. Relationship questionnaire is used to identify the dimension of attachment style (Bartholomew & Horowitz, 1991). Wellness behavior inventory was used to identify consistency of healthy behavior activities done on regularly basis (Sirois, 2001). Statistical tests used for descriptive analysis were frequency and percentage and for inferential statistics regression analysis test was used.ResultsAccording to the attachment styles A, B, C and D most of the study participants fell in healthy weight range, a few were in obese range which is considered unhealthy. Result of regression analysis estimated there is no effect of attachment style on health behavior as p-value was greater than 0.05.ConclusionsAttachment style is not a good predictor of health behavior solely. As per a few researches in order to study impact of attachment styles other mediating variables that can have effect on health behavior should also be observed such as self-esteem.

IntroductionIt is a digital era and people always turn on television to gain knowledge of what’s happening around, same is the case with COVID-19 breakout. Whole world relied on media to understand the scenario, as media has always played substantial role in providing information regarding precaution and treatment of the disease.ObjectivesTo assess influence of media surveillance function on society during COVID-19 breakout.MethodsParticipants included in the study are 11 and above who can utilize abstract thinking as per Piaget’s theory of cognitive development. Questionnaire used in the study was Media surveillance questionnaire, it was previously used in the study done during Ebola Virus Disease (EVD) spread in Nigeria. In current study the questionnaire was used by replacing disease name i.e. EVD to COVID-19. Questionnaire was distributed online on social media groups.ResultsAccording to data analysis majority agrees that major source of COVID-19 news is television and Radio, messages on media help in avoiding sick people, media provides helpful information regarding disease prevention and control and messages on media needs more clear directions.ConclusionsMedia played positive role during COVID-19 breakout and it also spread awareness about the myths, false home remedies and precautionary measures. Media also informed society about the health emergencies in case if anyone is infected with the virus. Still media messages need more clarity and direction as people rely more on media than social media. It is media’s responsibility to provide accurate information and more clear messages after inquiring matter properly especially when it’s about human lifeDisclosureNo significant relationships.