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A Rapid Parameter of Enzyme-Treated Cellulosic Material Revealed by Reducing Sugar Release

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Journal of Renewable Materials 2024年第3期12卷 539-551页

作者： Verônica Távilla Ferreira Silva Adriane maria Ferreira Milagres Departamento de Biotecnologia Escola de Engenharia de LorenaUniversidade de São PauloLorenaSP12602-810Brazil

This study was conducted to evaluate the effectiveness of enzymes in purifying and reducing the degree of polymerization of cellulose for the production of dissolving *** goal was to determine the contributions of xylanase(X)and endoglucanase(EG)in the treatment of pulp,specifically by quantifying the formation of soluble and insoluble reducing sugars using the dinitrosalycilic acid(DNS)***,the release of soluble reducing sugars(RSSol)was enhanced after xylanase treatment,while endoglucanase(EG)treatment led to changes in insoluble reducing sugars(RSIns).The maximum synergism was observed for RSIns when a high ratio of endoglucanase to xylanase(320EG:5X/g pulp)was *** relative contribution of endoglucanase to RSins was determined to be 15.6%of the total reducing *** viscosity of pulps treated with xylanase decreased only by 7%,whereas endoglucanase treatment significantly reduced viscosity by 45%.Modifications in the particle size were observed after pulp treatment with the combination of endoglucanase and *** summary,the DNS test is a rapid and effective method for evaluating the efficiency of enzyme treatments on *** measurement of RSIns correlates with changes in pulp viscosity to different extents,providing valuable insights into the effectiveness of enzyme treatments.

关键词： Endoglucanase xylanase cellulose fiber pulp synergism

MIS 5e sea surface temperature estimation;a multi-proxy approach using a marine macrofossil assemblage(Mar Piccolo,Gulf of Taranto,Southern Italy)

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Journal of Palaeogeography 2024年第2期13卷 327-350页

作者： Pierluigi Santagati Edoardo Perri maria Pia Bernasconi Mario Borrelli Salvatore Guerrieri Salvatore Critelli Dipartimento di Biologia Ecologia e Scienze della TerraUniversita della Calabriavia Pietro Bucci87036 Arcavacata di RendeCosenzaItaly Dipartimento di Ingegneria Ambientale Universita della Calabriavia Pietro Bucci87036 Arcavacata di RendeCosenzaItaly

It is reported a multi-proxy palaeoclimatic study conducted on a MIS 5e calcarenite from the Mar Piccolo Basin(MP),Gulf of Taranto(GT)(Central Mediterranean).The calcarenite returned a rich malacofauna consisting of 120 extant species,including four of the tropical Senegalese Fauna,today absent in the *** biogeographic-climatic affinity of the assemblage shows,compared to today,a double percentage of warm affinity species,while the cold affinity species are nearly equally represented,indicating a warmer but not strictly tropical *** is confirmed by the most recurring preferred SST ranges of the assemblage,indicating an average of 20℃.The skeletal compositions of five well-preserved molluscan and coral specimens were analyzed for trace elements and stable isotopes for further mean SST *** the comparison of the results of several equations available in literature,it appears that only some SST estimations are realistic,converging into similar values of,on average,20.8±0.9℃.Considering all the used proxies,the MIS 5e SST difference compared to today falls in the range 1.2—2.0℃for the GT(being a more reasonable scenario)and 2.0—2.8℃for the *** is not a firmly tropical-like SST setting as suggested by the sole Senegalese fauna,indicating at least 2.7℃—3.5℃more than today’s GT and MP,*** approximations and assumptions made for obtaining SST values with any single proxy indicate the need of a multi-proxy approach to define the best SST estimation.

关键词： MiS 5e Sea surface temperature Palaeoclimate proxy Fossil fauna Gulf of Taranto

Targeted nanopore sequencing for the identification of novel PRMT1 circRNAs unveils a diverse transcriptional profile of this gene in breast cancer cells

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Genes & Diseases 2024年第2期11卷 589-592页

作者： maria Papatsirou Andreas Scorilas Diamantis C.Sideris Christos K.Kontos Department of Biochemistry and Molecular Biology National and Kapodistrian University of AthensPanepistimiopolisAthens GR 15701Greece

Long-read sequencing with nanopore technology has been widely utilized for the identification of the full-length sequence of RNA molecules."It is especially suitable for the identification of circular RNAs(circRNAs),which are regulatory molecules that are regarded as promising non-invasive biomarkers for various human malignancies,including breast cancer.2 The impact of circRNAs derived from the protein arginine methyltransferase 1(PRMT1)gene has not been clarified yet,even though the effect of PRMT1-mediated methylation on breast cancer cell characteristics has been well established.

关键词： PRMT1 breast cancer

Jacques Touret(1936-2024)

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Geoscience Frontiers 2024年第4期15卷 518-520页

作者： maria Luce Frezzotti Daniel Harlov Jan Marten Huizenga Alfons van den Kerkhof Universitàdegli Studi di Milano-Bicocca MilanoItaly Geo Forschungs Zentrum Potsdam TelegrafenbergPotsdamGermany Norwegian University of Life Sciences ÅsNorway Georg-August Universität Göttingen GöttingenGermany

Jacques Touret(Fig.1)passed away on 11 March 2024 in Paris at the age of 88 after a long *** is survived by his wife Lydie Touret,four children,and 14 *** was a pioneer in the field of fluid inclusions and its applications in high-grade metamorphic *** his retrospective paper in Geoscience Frontiers(Touret,2014),Jacques described himself as someone who dedicated"...a great part of my scientifiic life to the study of minute bubbles in rocks issued from the most extreme depths of our mother Earth".He will be remembered as a very amiable person and his infectious enthusiasm for fluid inclusions.

关键词： someone remember mother

Boston type I keratoprosthesis

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Annals of Eye Science 2024年第2期9卷 12-23页

作者： Karen Hu Imane Tarib maria Soledad Cortina Department of Ophthalmology and Visual Sciences University of Illinois at ChicagoChicagoILUSA

Successful corneal solid tissue transplantation,beginning with penetrating keratoplasty(PKP),and evolving to include contemporary lamellar and endothelial keratoplasty,has been a tremendous advancement in the struggle to combat corneal ***,there remain patients with high-risk features predictive of transplant failure,for whom donor keratoplasty is not a viable *** corneas have therefore been developed in order to meet the needs of these *** Boston type I keratoprosthesis(BKPro)is the most widely used prosthetic cornea in the treatment of corneal *** the years since the BKPro’s introduction,refinement of surgical technique and clinical management as well as improvements in prosthetic design have contributed to promising patient outcomes,particularly in the short *** such,patients with keratoprosthesis implants continue to grow in number,and the indications for the BKPro have commensurately ***,risks of permanently blinding complications after implantation persist over all stages of *** the foreseeable future,the success of keratoprosthesis(KPro)implantation will continue to depend on refined patient selection,preoperative optimization,and incisive postoperative *** we explore indications,surgical technique and postoperative outcomes as well as several core tenants in the management of BKPro patients:limiting glaucomatous progression,controlling inflammation,and optimizing the ocular *** exquisite sensitivity of the BKPro-implanted eye to perturbations in any one of these areas showcases the intimate relationship between the prosthetic device and its surrounding environment.

关键词： Keratoprosthesis corneal transplant Boston type I keratoprosthesis(BKPro) keratoprosthesis(KPro)

How to identify early complications in patients undergoing distal gastrectomy?

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World Journal of Gastrointestinal Surgery 2024年第4期16卷 974-981页

作者： Giuseppe Tropeano maria Michela Chiarello Valeria Fico Giuseppe Brisinda Emergency Surgery and Trauma Center Fondazione Policlinico Universitario A Gemelli IRCCSRome 00168Italy Department of Surgery Azienda Sanitaria Provinciale di CosenzaCosenza 87100Italy Department of Medical and Surgical Sciences UniversitàCattolica del Sacro CuoreRome 00168Italy

In this editorial we comment on the article by Zhang et al published in a recent issue of the World Journal of Gastrointestinal *** with appropriate lymph node dissection is still standard curative treatment in locally advanced gastric *** studies point out that gastric cancer surgery is a complex procedure that leads to a high risk of morbidity and *** factors can contribute to the onset of complications with consequent effects on prognosis and increased *** complications can be divided in complications related to anastomosis,to motility and to surgical site *** study presented by Zhang B et al represent an interesting analysis on the possibility to prevent postoperative *** study was performed on 131 patients with distal gastric cancer who underwent gastrectomy with D2 lymph node *** these patients,16%developed early postoperative *** univariate analysis showed that prealbumin level,hypertension,diabetes,history of abdominal surgery,R0 resection,and blood transfusion were factors influencing early postoperative complications after distal ***,the inclusion of the above significant variables in the logistic regression analysis revealed that hypertension,diabetes,a history of abdominal surgery,and blood transfusion were independent predictors of postoperative *** conclusion,preoperative and intraoperative factors can be used to establish an early postoperative nomogram *** results of the study presented by Zhang et al suggest that the prediction model can be used to guide the detection of postoperative complications and has clinical reference value.

关键词： Gastric cancer Gastrectomy Lymph node dissection Morbidity Mortality Surgical site infections

Unraveling the gut-brain axis:the impact of steroid hormones and nutrition on Parkinson's disease

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Neural Regeneration Research 2024年第10期19卷 2219-2228页

作者： Paula maria Neufeld Ralf A.Nettersheim Veronika Matschke Matthias Vorgerd Sarah Stahlke Carsten Theiss Department of Cytology Institute of AnatomyMedical FacultyRuhr-University BochumBochumGermany Department of Visceral Surgery University Hospital BergmannsheilRuhr-University BochumBochumGermany Department of Neurology Heimer Institute for Muscle ResearchUniversity Hospital BergmannsheilRuhr-University BochumBochumGermany

This comprehensive review explores the intricate relationship between nutrition,the gut microbiome,steroid hormones,and Parkinson's disease within the context of the gut-brain *** gut-brain axis plays a pivotal role in neurodegenerative diseases like Parkinson's disease,encompassing diverse components such as the gut microbiota,immune system,metabolism,and neural *** gut microbiome,profoundly influenced by dietary factors,emerges as a key *** during the first 1000 days of life shapes the gut microbiota composition,influencing immune responses and impacting both child development and adult ***-fat,high-sugar diets can disrupt this delicate balance,contributing to inflammation and immune *** nutritional strategies,the Mediterranean diet's anti-inflammatory and antioxidant properties show promise in reducing Parkinson's disease ***-targeted dietary approaches and the ketogenic diet hold the potential in improving brain *** nutrition,emerging research uncovers potential interactions between steroid hormones,nutrition,and Parkinson's ***,with its anti-inflammatory properties and presence in the nervous system,offers a novel option for Parkinson's disease *** ability to enhance neuroprotection within the enteric nervous system presents exciting *** review addresses the hypothesis thatα-synuclein aggregates originate from the gut and may enter the brain via the vagus *** symptoms preceding motor symptoms support this *** gut-brain signaling during gut dysbiosis contributes to inflammation and neurotransmitter imbalances,emphasizing the potential of microbiota-based *** summary,this review uncovers the complex web of interactions between nutrition,the gut microbiome,steroid hormones,and Parkinson's disease within the gut-brain axis *** these connections not only offers novel therapeutic insi

关键词： diet gut-brain axis microbiome neurodegenerative diseases nutrition Parkinson's disease progesterone steroid hormones

Effect of low concentration electrolytes on the formation and corrosion resistance of PEO coatings on AM50 magnesium alloy

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Journal of Magnesium and Alloys 2024年第4期12卷 1386-1405页

作者： Peng Xie Carsten Blawert maria Serdechnova Natalia Konchakova Tatsiana Shulha Ting Wu Mikhail L.Zheludkevich Institute of Surface Science Helmholtz-Zentrum HereonMax-Planck Strasse 121502 GeesthachtGermany Institute for Materials Science Faculty of EngineeringKiel UniversityKaiserstrasse 224143 KielGermany

In this paper,the formation process,morphology,and electrochemical performance of PEO coatings on AM50 magnesium alloy prepared in low concentration phosphate,aluminate,and phosphate-aluminate electrolytes were systematically *** results show that the coatings prepared from the phosphate electrolytes have a higher thickness and better corrosion resistance properties compared to the other *** coatings prepared from low concentration phosphate-aluminate mixed electrolytes have slightly thinner thickness,a similar coating structure and an order of magnitude lower value of electrochemical impedance compared with phosphate electrolyte *** Coatings prepared from low concentration aluminate electrolytes have the lowest thickness and the worst corrosion resistance properties which gets close to corrosion behavior of the bare AM50 under the same test *** application,coatings prepared from single low concentration phosphate electrolytes and low concentration phosphate-aluminate electrolytes have greater potential than single low concentration aluminate ***,reducing the electrolyte concentrations of coating forming ions too much has negative influence on the coating growth rate.

关键词： Plasma electrolytic oxidation Low concentration electrolytes Corrosion resistance AM50 magnesium alloy

Development and technology status of energy storage in depleted gas reservoirs

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International Journal of Coal Science & Technology 2024年第2期11卷 198-221页

作者： Jifang Wan Yangqing Sun Yuxian He Wendong Ji Jingcui Li Liangliang Jiang maria Jose Jurado China Energy Digital Technology Group Co. Ltd.Beijing 100044China School of Mechanical Engineering Yangtze UniversityJingzhou 434023China Department of Chemical and Petroleum Engineering The University of CalgaryCalgaryAlbertaCanada Geosciences Barcelona CSIC Spanish National Research Council08028 BarcelonaSpain

Utilizing energy storage in depleted oil and gas reservoirs can improve productivity while reducing power costs and is one of the best ways to achieve synergistic development of"Carbon Peak–Carbon Neutral"and"Underground Resource Utiliza-tion".Starting from the development of Compressed Air Energy Storage(CAES)technology,the site selection of CAES in depleted gas and oil reservoirs,the evolution mechanism of reservoir dynamic sealing,and the high-flow CAES and injection technology are *** focuses on analyzing the characteristics,key equipment,reservoir construction,application scenarios and cost analysis of CAES projects,and sorting out the technical key points and existing *** devel-opment trend of CAES technology is proposed,and the future development path is scrutinized to provide reference for the research of CAES projects in depleted oil and gas reservoirs.

关键词： Depleted gas reservoirs Technology and development Siting analysis Safety evaluation Compressed air energy storage