bluuebunny/crossref_metadata_2025_split huggingface dataset:
Traitement d'une eau naturelle polluée par adsorption sur du charbon actif (CAK) préparé à partir de tourteaux de karité
Authors: Tchakala Ibrahim , Kodom Tomkouani , Alfa-Sika Mande Seyf-Laye , Bawa Moctar , Djaneye-Boundjou Gbandin 
Published: November 2016

The study concerns organic and inorganic pollutants and its removal from natural water (Be Lagoon) using activated Shea cake (CAK). The activated carbon CAK has the following characteristics: BET surface area is equal to 1148 m2.g-1 and the pore volume is equal to 0.607 cm3.g-1. This activated carbon is essentially microporous with the volume of micropores representing over 70% of the total pore volume. The “batch method" was used for pollutant removal and it reveals that the contact time values are equal to 10 h for BOD and 15 h for COD. A systematic study was done to assess the influence of the mass of activated carbon on its adsorption capacity of BOD and COD. The Langmuir and Freundlich isotherm models agreed with experimental data. The maximum adsorption capacity obtained using Langmuir isotherm model was 12.66 mg/g for all the organic and inorganic pollutants and 11.24 mg/g for organic pollutants only.
Le présent travail a pour but l'utilisation d’un charbon actif (CAK) préparé à partir de tourteaux de karité pour l'adsorption de polluants organiques et inorganiques d’une eau naturelle (lagune de Bè). Le charbon actif CAK présente une surface BET de 1148 m2.g-1 et un volume poreux de 0,607 cm3.g-1. Il est essentiellement microporeux avec un volume de micropores représentant plus de 70 % du volume total des pores. L’étude de laboratoire menée en batch a permis de déterminer des temps de contact optimaux de 10 h pour les polluants organiques seuls et 15 h pour l’ensemble des polluants organiques et inorganiques. L’influence du dosage en charbon actif sur les performances d’adsorption a également été étudiée. L’établissement des isothermes d’adsorption a montré que l’adsorption de l’ensemble des polluants organiques et/ou inorganiques est bien décrite par les modèles à l’équilibre de Langmuir et de Freundlich. Dans les conditions expérimentales utilisées, les capacités maximales d’adsorption des polluants par gramme de charbon actif ont été déterminées respectivement égales à 12,66 mg/g pour l’ensemble des polluants organiques et inorganiques et à 11,24 mg/g pour les polluants organiques.
Surface energy balance sensitivity to meteorological variability on Haig Glacier, Canadian Rocky Mountains
Authors: Ebrahimi Samaneh , Marshall Shawn J. 
Published: November 2016

Abstract. Energy exchanges between the atmosphere and the glacier surface control the net energy available for snow and ice melt. This paper explores the response of a midlatitude glacier in the Canadian Rocky Mountains to daily and interannual variations in the meteorological parameters that govern the surface energy balance. We use an energy balance model to run sensitivity tests to perturbations in temperature, specific humidity, wind speed, incoming shortwave radiation, glacier surface albedo, and winter snowpack depth. Variables are perturbed (i) in isolation, (ii) including internal feedbacks, and (iii) with co-evolution of meteorological perturbations, derived from the North American regional climate reanalysis (NARR) over the period 1979–2014. Summer melt at this site has the strongest sensitivity to interannual variations in temperature, albedo, and specific humidity, while fluctuations in cloud cover, wind speed, and winter snowpack depth have less influence. Feedbacks to temperature forcing, in particular summer albedo evolution, double the melt sensitivity to a temperature change. When meteorological perturbations covary through the NARR forcing, summer temperature anomalies remain important in driving interannual summer energy balance and melt variability, but they are reduced in importance relative to an isolated temperature forcing. Covariation of other variables (e.g., clear skies, giving reduced incoming longwave radiation) may be partially compensating for the increase in temperature. The methods introduced in this paper provide a framework that can be extended to compare the sensitivity of glaciers in different climate regimes, e.g., polar, maritime, or tropical environments, and to assess the importance of different meteorological parameters in different regions.
Capital Structure Effect on the Practices of Earnings Management Phenomenon? The Evidence of Listed Firms in Abu Dhabi Securities Exchange
Authors: Obeidat Mohammed Ibrahim Sultan 
Published: November 2016

<p align="center">The study objects for determining whether the listed firms in Abu Dhabi Securities Exchange exercise the phenomenon of earnings management in its financial reporting, and whether these practices are affected or driven by the capital structure of firms. To achieve the objectives of the study, a sample consisting of 29 listed firms at Abu Dhabi Securities Exchange (ADX) out of total 83 listed firms, had been selected using the simple random sampling method. Data covering 4-years was collected from the included firms in the sample, starting from 2012 till the end of 2015. The binomial distribution test is used to determine whether listed firms at ADX exercise the phenomenon of earnings management using the modified Jones 1995 model, whereas, the simple linear regression method is used to test whether the proportion of financial leverage in the capital structure of firms drives the practices of earnings management. The study shows that the firms exercise the phenomenon of earnings management, and the regression outputs show a significant positive effect of financial leverage on the practices of earnings management phenomenon. </p>
Serological Detection of Q–Fever in the Sera of Humans and Ruminants in Selected Areas in the Philippines
Authors: Cardona Fernando C. 
Published: November 2016

Q fever is an emerging worldwide zoonotic disease caused by a bacterium Coxiella burnetii. Detection of Q fever antibodies among humans and animals was conducted using sera from human donors and sera from three different species of animals obtained from Catarman, Northern Samar, Los Baños, Laguna, and General Santos City, South Cotabato, Philippines. The Complement Fixation Test (CFT) was used to detect antibodies in sera samples. The result of the study showed that Q fever antibodies in humans were found to be 37% (22/60) while the sampled animals have 43 % (77/180). Among the animals, the highest occurrence of antibodies was observed in goats with 70% (42/60), followed by 40% among cattle (24/60) and the least 18% were from carabaos (11/60). According to sampling sites, 20% (12/60) of antibody-positive humans were from Los Baños, Laguna, some 17% (10/60) came from General Santos City and none from Catarman, Northern Samar. Among the goats examined, a higher percentage of Q fever antibodies were obtained from those in Los Baños with 30% (18/60) occurrence, and from General Santos City with 25% (15/60) occurrence. Likewise, an equal occurrence rates of Q fever antibodies among cattle came from Los Baños, Laguna and General Santos City each with 20% (12/60) seropositivity, respectively. Among the carabaos, 18% (11/60) was in General Santos City and 8% (5/60) in Catarman. Based on these findings, it could be inferred that Q fever infection exists among humans, goats, cattle, and carabaos in the Philippines.
Disaster Preparedness and Recovery Plan for an Island Resort
Authors: Mendez Sheilane S. , Etcuban Jonathan O. , Dalagan Dunedene J. , Mañego Hearty Sol R. , Bajao Grayfield T. , Llaguno Venus C. 
Published: November 2016

Disasters are inevitable. The island resorts in Malapascua Island, Daan Bantayan, Cebu, Philippines are vulnerable to natural risks such as typhoons and earthquake. In increasing disaster resilience, a model should be based on risk assessment results and be integrated with the strategic planning of the government and communities. It should consider risks and risk treatments across the social, built, economic and natural environments (Councils for Australian Governments, 2009). The study aimed to propose a disaster resiliency model for Malapascua Island, Daan Bantayan, Cebu, Philippines. The output of this study is a guide for the local community in case of natural disasters. The descriptive survey method was utilized using a two survey questionnaires. The data regarding disaster preparedness in hotel resorts are gathered from the 80 respondents consists of the staff and managers of resorts in Malapascua Island, emergency rescue personnel, as well as the village officials of village Logon and municipal officials of Daan Bantayan, Cebu, Philippines. Simple percentage and rank were used in the treatment of the data. Results showed that island is vulnerable to risk and that devised plans for emergency disasters, hazard mitigation, and contingency are needed. The researchers recommended the use of the model. However, further research on its effectiveness should be conducted to confirm the preliminary findings.
Hydrophobic Interface Engineering for Highly Reversible and Stable Zn Anodes
Authors: Tian Han , Yang Jia‐Ning , Li Shang‐Qi , Wang Kai‐Xue , Chen Jie‐Sheng 
Published: September 2024

AbstractRechargeable aqueous zinc batteries (AZIBs) with merits of high safety and high theoretical capacity are regarded as next‐generation energy storage devices. However, their practical application is hindered by the instable Zn anodes associated with the dendrite growth, parasite corrosion and side reactions. Developing a stable solid electrolyte interface is crucial for improving the cycling stability of Zn anodes. Herein, a hydrophobic interface is constructed on Zn anode through a simple heptafluorobutyrate acid etching route. The hydrophobic interface containing organic C─F, O─C═O and inorganic Zn─F bonds effectively address the issues of dendrites growth and parasitic reactions. Consequently, symmetric cells with acid‐treated Zn‐HA anodes achieve a prolonged lifespan of over 2000 h at 4.0 mA cm−2 and 1100 h at 10.0 mA cm−2. When paired with MnO2 cathode, the full cells deliver lower overpotential and outstanding cycling stability. This strategy provides a simple and feasible method to construct stable Zn anode for achieving high performance AZIBs.
Injectable Glucose‐Releasing Microgels Enhance the Survival and Therapeutic Potential of Transplanted MSCs Under Ischemic Conditions
Authors: Huang Chieh‐Cheng , Chang Chun‐Kai , Yang Pei‐Ching , Chiu Han , Chen Shih‐Heng , Hsu Li‐Wen 
Published: September 2024

AbstractMesenchymal stem cell (MSC)‐based therapies show potential to treat ischemic diseases owing to their versatile functions. However, sustaining MSC viability and therapeutic efficacy in ischemic tissues postengraftment remains a significant challenge. This is because, although MSCs are metabolically flexible, they fail to adapt to hypoxic conditions in the absence of glucose, leading to cell death. To overcome these issues, it is aimed to establish an injectable glucose delivery system using starch and amyloglucosidase embedded in alginate microgels. Here, starch/amyloglucosidase (S/A) microgels are engineered to continuously release glucose for seven days via enzymatic hydrolysis, thereby supporting MSC functions under ischemic conditions. In vitro tests under oxygen/glucose‐deprived conditions revealed that the S/A microgels not only maintained the viability and intracellular energy but also enhanced the pro‐angiogenic and immunomodulatory functions of MSCs. In vivo data further confirmed the pro‐survival and pro‐angiogenic effects of S/A microgels on MSCs following subcutaneous engraftment in mice. Overall, the developed S/A microgel significantly enhanced the survival and therapeutic potential of MSCs via sustained glucose delivery, highlighting its potential use in advancing MSC‐based therapies for ischemic conditions.
Recent Progress in Computational Materials Science Boosting Development of Rechargeable Batteries
Authors: Tian Miao , Wang Zhitao , Yang Hui Ying , Chen Song 
Published: September 2024

AbstractRechargeable batteries have been regarded as a truly transformative technology, providing energy storage for portable electronics, power tools, and even electric vehicles. Unfortunately, the practical applications of new battery systems are postponed by some inevitable technical bottlenecks. Sometimes the technical know‐how gained from the current state‐of‐the‐art lithium‐based batteries is untransferable. Therefore, with the continuous development of chemistry, materials and physics, computational materials science has gradually become crucial in supporting the field of rechargeable batteries technically. In this review, brief overviews of computational methods are first presented for the research of battery materials. The study then summarizes the recent advances of computational techniques in assisting experimental analyses, elucidating reaction mechanisms, and exploring new materials. Finally, the challenges and perspectives for future computational research are prospected. This review is anticipated to stimulate design inspiration of novel materials and structures with the assistance of theoretical simulations toward advanced energy storage systems.
A Size‐Matched Composite (CTA)3PW4@UiO‐67 for the Ultra‐Deep Desulfurization of Simulated Diesel: Design, Performance, and Reusability
Authors: Gao Yan , Zhao Shumin , Huang Jingwen , Han Tao , Zhao Jianshe 
Published: September 2024

ABSTRACTVenturello‐structured polyoxometalates (POMs) are effective homogeneous catalysts and confining POMs to size‐matched metal‐organic frameworks (MOFs) as heterogeneous catalyst is an effective way to improve their practical application. The appropriate pore and narrow window of pristine UiO‐67 can not only enclose POMs in single molecule but also limit their leaching and can provide a suitable platform for the oxidation of most sulfur‐containing organic compound. The composite (CTA)3PW4@UiO‐67 was prepared by a facile in situ synthesis method, characterized by a variety of means and tested for desulfurization of multicomponent simulated diesel. The results prove that the active component (CTA)3PW4 is effectively encapsulated, and the composite (CTA)3PW4@UiO‐67 show remarkable desulfurization activity and excellent reusability. In addition, the kinetics and possible mechanism of the reaction were investigated. This work opens up a new idea for the design of “host‐guest adapted” catalyst suitable for fuel desulfurization technology.
Protein‐Based Polymeric Metal–Nanocomposite Derived From Egg Albumin: A Highly Effective Antimicrobial Agent Against Bacteria
Authors: Alahe A. T. M. Mahbub , Liza Sharmin Akter , Raha Rajan Kumar , Abdulla‐Al‐Mamun Md. 
Published: September 2024

ABSTRACTThe synthesis of four distinct protein‐based metal nanocomposites has been fabricated by employing egg albumin and zinc metal through a simple, straightforward two‐step method. The Fourier transform infrared (FTIR), X‐ray diffraction (XRD), and scanning electron microscopy (SEM) analyses confirmed the successful incorporation of zinc nanoparticles into the protein matrix and revealed an irregular microporous structure with average crystallite sizes of less than 100 nm. Thermal stability was assessed via thermogravimetric (TG) and derivative thermal gravimetry (DTG) analysis, revealing a notable increase in thermal stability in a high‐temperature range (300°C°C–700°C), suggesting remarkable stability at elevated temperatures. Antimicrobial efficacy against both gram‐positive (B. cereus and Lactobacillus spp.) and gram‐negative bacteria (E. coli and K. pneumoniae) was evaluated using paper disk diffusion, pour plate, and minimum inhibitory concentration (MIC) methods. All samples exhibited antibacterial efficacy, with zone of inhibition (ZOI) diameters ranging from 12 to 35 mm, and demonstrated a bactericidal effect by eliminating 93 to 98% of bacteria within 8 to 20 h at their MICs. Notably, protein–ZnO–PANI exhibited potent antimicrobial activity against all four bacterial strains and among all the samples, demonstrated higher antimicrobial activity than the unpolymerized nanocomposites. The disk diffusion study confirmed that a concentration of 25 μg/mL of protein–ZnO–PANI resulted in ZOI measurements of 25 mm and 35 mm, whereas MIC values of 300 μg/mL and 200 μg/mL were observed against Bacillus cereus and E. coli, respectively, and killed 95% of B. cereus and 98% of E. coli within 24 h. Based on the obtained results, a plausible mechanism was also proposed.
Novel black TiO2‐MIP cartridge for the selective and enhanced removal of NSAIDs under LED light irradiation
Authors: Aliyari Asma , Rafiee Mohammad , Heidari Bahareh , Sedghi Roya , Eslami Akbar , Sarafraz Mansour 
Published: September 2024

AbstractA multi‐template molecularly imprinted photocatalyst based on Black TiO2 was used for selective and simultaneous adsorption and degradation of Non‐steroidal anti‐inflammatory drugs (NSAIDs) under LED irradiation from aqueous solutions. diclofenac (DCF) and ibuprofen (IBP) were chosen as the target chemicals and the performance of the Black TiO2‐MIP nanocomposite in removing these pollutants was investigated. The imprinting procedure was confirmed by characterization tests of the nanocomposite. The synthesized mesoporous nanocomposite exhibited excellent fit with the pseudo‐second‐order kinetic model (R2 ≥ 0.99). Moreover the experimental data demonstrated a good fit with the Langmuir isotherm model (R2 = 0.99). The findings imply that the binding sites are homogeneous and indicate monolayer chemical adsorption on the adsorbent. Toxicity assessment of targeted chemicals and their by‐products, worked out using the Ecological Structure–Activity Relationships (ECOSAR) program, revealed a significant decrease in the toxicity of the target compounds during photocatalytic degradation. In addition, the use of Black TiO2‐MIP nanocomposite in the cartridge structure led to notable removal efficiencies, 98.7% and 97.6% for DCF and IBP, respectively. The findings also provided evidence that the use of Black TiO2‐MIP in the cartridge structure not only facilitated the removal of target pollutants but also addressed challenges related to the collection and separation of the nanocomposite from the aqueous solution. The results implied that the integration of molecular imprinting and photocatalysis processes exhibits high effectiveness in the simultaneous and selective removal of contaminants. This approach holds promise as an effective solution for addressing the challenge of drug residues in aqueous samples.
What do established companies do to factor in sustainability into their business models?
Authors: Ademi Bejtush , Sætre Alf Steinar , Klungseth Nora Johanne 
Published: September 2024

AbstractThis study examines the motivations for businesses to integrate sustainability into their business models (BMs) and how they can innovate those models to become more sustainable. The concept of business model innovation for sustainability (BMIfS) has emerged as a viable means to help companies innovate sustainable business models (SBMs). However, it remains a “black box” for many companies, and a design‐implementation gap has been identified. Utilizing an embedded case study approach, we conducted 49 interviews, observed three meetings, and collected over 1000 pages of archival data. The findings offer practical strategies for BMIfS, clarify the integration between business model innovation and SBM concepts, and provide a framework for adding new SBMs to an existing business portfolio. This research is of interest to scholars and business practitioners involved in integrating sustainability into their business strategies for building a sustainable future.
Partial hepatectomy versus interventional treatment in patients with hepatitis B virus‐related hepatocellular carcinoma and clinically significant portal hypertension: a randomized comparative clinical trial
Authors: Yuan Yichuan , Peng Hong , He Wei , Zheng Yun , Qiu Jiliang , Chen Bin , Zou Ruhai , Wang Chenwei , Lau Wan Yee , Li Binkui , Yuan Yunfei 
Published: September 2024

AbstractBackgroundThe widely accepted view that portal hypertension (PHT) is a contraindication to hepatectomy for patients with hepatocellular carcinoma (HCC) is being increasingly challenged. The long‐term survival outcomes and safety of partial hepatectomy versus interventional treatment using ablation with or without pre‐ablation transarterial chemoembolization (TACE) in patients with HBV‐related HCC within the Milan criteria and with clinically significant PHT were compared in this study.MethodsThis open‐label randomized clinical trial was conducted on consecutive patients with clinically PHT and hepatitis B virus (HBV)‐related HCC with tumors which were within the Milan criteria. These patients were randomized 1:1 to receive either partial hepatectomy or interventional treatment between December 2012 and June 2018. The primary endpoint was overall survival (OS); secondary endpoints included recurrence‐free survival (RFS) and therapeutic safety.ResultsEach of the 2 groups had 80 patients. The 1‐, 3‐ and 5‐year OS rates in the partial hepatectomy group and the interventional treatment group were 95.0%, 86.2%, 69.5% versus 93.8%, 77.5%, 64.9%, respectively (P = 0.325). The corresponding RFS rates were 78.8%, 55.0%, 46.2% versus 71.3%, 52.5%, 45.0%, respectively (P = 0.783). The partial hepatectomy group had a higher complication rate compared to the interventional group (67.5% vs. 20%, P < 0.001). However, the differences were mainly in Clavien‐Dindo Grade I complications (P < 0.001), while not significant in Grade II/III/IV/V (All P > 0.05).ConclusionsThis study shows that partial hepatectomy treatment did not meet prespecified significance for improved OS and RFS compared to interventional treatment for patients with HBV‐related HCC within the Milan criteria and with clinically significant PHT. However, partial hepatectomy is still a safe procedure and should be considered as a treatment option rather than a contraindication.
Choline Oxidase and Choline Ionic Liquids in Biocatalytic Heme Peroxidase Cascades
Authors: Hallamaa Marleen , Naapuri Janne M. , Silva Rafaela A. L. , Rosatella Andreia A. , Deska Jan 
Published: September 2024

AbstractCholine oxidase from Alcaligenes sp. (ChOx) is used to generate hydrogen peroxide in situ from choline‐based ionic liquids (ILs) to fuel peroxidase‐mediated biocatalysis while mitigating oxidative degradation of the heme‐dependent enzymes. Horseradish peroxidase (HRP) and chloroperoxidase from Caldariomyces fumago (CPO), in combination with the ChOx, are evaluated in enzymatic cascades for the ability of the biocatalytic systems to withstand elevated concentrations of different choline additives in oxidative and halogenative enzymatic assays. The findings are applied in various synthetic scenarios to produce important oxygen‐ and nitrogen‐containing heterocycles, using choline ILs in a dual‐purpose fashion, as a substrate‐solubilizing component in the reaction medium as well as the source for hydrogen peroxide. The ChOx/HRP couple is used to induce intramolecular cyclizations of hydroxamic acids and hydroxycarbamates in a nitroso‐ene‐type pathway with choline dihydrogen phosphate as IL additive. The ChOx/CPO cascade successfully mediates brominative cyclizations of α‐allenic alcohols, while amphiphilic surfactants are employed to turn the aqueous choline propionate IL media into a colloidal suspension. ChOx/CPO partnering is also evaluated in an oxygenative rearrangement of 1‐furylethanol with choline acetate IL. The results show the wide potential of choline oxidase for hydrogen peroxide‐driven biocatalysis with both aqueous and micellar choline ionic liquid solutions.