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tri-axial accelerometry allows to determine parental food provisioning behaviour in a marine bird

Avian Research 2024年第3期15卷 345-351页

作者： Monserrat Del Caño Flavio Quintana Giacomo Dell’omo Agustina Gómez-Laich Instituto de Biología de organismos Marinos(IBIoMAR) CONICETBoulevard Brown 2915U9120ACDPuerto MadrynChubutArgentina ornis Italica Piazza Crati 1500199RomeItaly Departamento de Ecología Genética y Evolución(EGE)and Instituto de EcologíaGenética y Evolución de Buenos Aires(IEGEBA)CONICETFacultad de CienciasExactas y NaturalesUniversidad de Buenos AiresPabellón II Ciudad UniversitariaC1428EGACiudad Autónoma de Buenos AiresArgentina

the study of parental food provisioning is essential for understanding the breeding ecology of *** conducted the first study using accelerometry to detect food provisioning in birds,using Support Vector Machine(SVM)models to identify when adults feed chicks of three different age *** were attached to the head of adult female Imperial Shags(Leucocarbo atriceps),and various attributes derived from the accelerat.o. signals were used to train SVM models for each chick age *** performance improved with chick age class,with SVM models achieving high overall accuracy(>88%)and highest sensitivity in older chick categories(>91%).However,precision values,especially for younger chicks,remained relatively low(between 26%and 45%).the applicat.o. of a time filter based on the minimum durat.o. of the observed food provisioning behaviours for each chick age category,improved model performance by reducing false provisioning behaviours,particularly in the model for older chicks,which showed the highest precision(72.4%).this study highlights the effectiveness of accelerometry and machine learning in studying parental food provisioning in birds,providing a rapid and accurate data collect.o. met.o. to complement tradit.o.al *** described met.o.ology can be applied to any bird species that exhibits distinctive movements while feeding its offspring and has suitable characteristics for attaching an accelerometer to the body part that best captures this ***,it is hoped that the results of this study will contribute to future research on key quest.o.s in parental investment theory and reproductive strategies in birds.

关键词： Accelerometry Food provisioning Imperial shag Leucocarbo atriceps Seabird Support vector machine

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Development.o. bismuth-based solut.o.s for well plugging and abandonment:A review

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Pet.o.eum Research 2024年第2期9卷 250-264页

作者： Lewaa Hmadeh Marcelo Anunciação Jaculli Behzad Elahifar Sigbjørn Sangesland Norwegian University of Science and technology PTSValgrindaS.P.Andersens veg 15 ANorway

Plugging and abandonment(P&A)is a crucial step of the well life *** of how long one stretches the productive life of a well,P&A operat.o.s will have to be carried out *** current panorama of our industry includes many wells to be plugged and abandoned,with steep requirements to abide by both regulat.o.s and societal *** this context,we must guarantee that no leakage occurs with an eternal perspective in *** has been the prime material for this task,but recent studies have indicated the potential of degradat.o. over time-especially in corrosive environments-and the creat.o. of leaking paths due to its *** has opened up a path toward the usage of alternative *** of the emerging candidates is bismuth,a metal with the unique characteristic of expanding when *** a trait could improve the overall sealability of wellbores and especially during P&*** article discusses the current status of bismuth sealing technologies,int.o.ucing the basics of bismuth,the ongoing efforts to qualify it as a barrier material,its potential applicat.o.s,and the challenges that still need to be *** latest research indicates promising results in terms of its usage as a barrier element.

关键词： Bismuth plugs Bismuth-tin alloys Well plugging and abandonment Well integrity

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Music as medicine for traumatic brain injury:a perspective on future research direct.o.s

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Neural Regenerat.o. Research 2024年第10期19卷 2105-2106页

作者： Ant.o.y E.Kline Eleni H.Moschonas Corina o.Bondi Department.o. Physical Medicine&Rehabilitat.o. University of PittsburghPittsburghPAUSA Safar Center for Resuscitat.o. Research University of PittsburghPittsburghPAUSA Center for Neuroscience University of PittsburghPittsburghPAUSA Department.o. Critical Care Medicine University of PittsburghPittsburghPAUSA Center for the Neural Basis of Cognit.o. University of PittsburghPittsburghPAUSA Department.o. Psychology University of PittsburghPittsburghPAUSA Department.o. Neurobiology University of PittsburghPittsburghPAUSA

traumatic brain injury(tBI) impacts 69 million individuals globally each year and is a leading cause of death and disability(Dewan et al.,2019).the majority of moderate-to-severe tBI survivors endure long-lasting disturbances in motor,cognitive,and affect that negatively impacts their *** a plet.o.a of research on pharmacological intervent.o.s for tBI has been conducted,none has translated to the clinic,thus advocating for the evaluat.o. of nonpharmacological therapeutic approaches that may increase translat.o.al success.

关键词： injury traumatic

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Myelin histology:a key t.o. in nervous system research

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Neural Regenerat.o. Research 2024年第2期19卷 277-281页

作者： Óscar Darío García-García Víctor Carriel Jesús Chato-Astrain Department.o. Histology Tissue Engineering GroupUniversity of Granada&Instituto de Investigación Biosanitaria ibs.GRANADAGranadaSpain

the myelin sheath is a lipoprotein-rich,multilayered structure capable of increasing conduct.o. velocity in central and peripheral myelinated nerve *** to the complex structure and composit.o. of myelin,various histological techniques have been developed over the centuries to evaluate myelin under normal,pat.o.ogical or experimental ***,met.o.s to assess myelin integrity or content are key t.o.s in both clinical diagnosis and neuroscience *** this review,we provide an updated summary of the composit.o. and structure of the myelin sheath and discuss some histological procedures,from tissue fixat.o. and processing techniques to the most used and practical myelin histological staining *** the lipoprotein nature of myelin,the main features and technical details of the different available met.o.s that can be used to evaluate the lipid or protein components of myelin are described,as well as the precise ultrastructural techniques.

关键词： fluorescence microscopy histology light microscopy lipid histochemistry metallographic techniques myelin histochemistry myelin immunohistochemistry myelin structure&composit.o. myelin ultrastructural evaluat.o. tissue fixat.o.&processing

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EP Aquarii:A New Picture of the Circumstellar Envelope

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Research in Ast.o.omy and Ast.o.hysics 2024年第3期24卷 83-105页

作者： Pham t.Nhung Do t.Hoai Pierre Darriulat Pham tuan-Anh Pham N.Diep Nguyen B.Ngoc tran t.thai Department.o. Ast.o.hysics Vietnam National Space CenterVietnam Academy of Science and Technology18Hoang Quoc VietNghia DoCau GiayHa Noivietnam

New analyses of earlier ALMA observat.o.s of oxygen-rich AGB star EP Aquarii are presented,which complete a previously published analysis and offer a different interpretat.o. of the morpho-kinematics of the circumstellar *** birth of the equatorial density enhancement(EDE)is shown to occur very close to the star where evidence for rotat.o. has been *** to the star and where outflows have been observed:their interact.o. with the gas of the nascent EDE is seen to play an important role in the development.o. the wind and the evolut.o. of its radial velocity from 8 to 10 km s^(-1) on the polar symmetry axis to~2 km s^(-1) at the *** implies complex morpho-kinematics:making reliable interpretat.o.s with reasonable confidence is *** particular,it quest.o.s an earlier interpretat.o. implying the presence of a white dwarf companion orbiting the star at an angular distance of -0″4 from its *** proposes instead an interpretat.o. in terms of a standard mass eject.o. associated with a shock wave leaving a void of emission in its *** Doppler velocity wings are seen to consist.o. t.o.components,the upper velocity end of the global wind,reaching above±12 km s^(-1),and an effective line broadening,confined within 200 mas from the center of the star,reaching above±20 km s^(-1) and interpreted as caused by the pattern of shock waves resulting from the interact.o. between stellar pulsat.o. and convective cell partit.o..

关键词： stars AGB and post-AGB-(stars) circumstellar matter-radio lines stars

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Determinat.o. of critical state line(CSL)for silty-sandy iron ore tailings subjected to low-high confining pressures

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第5期16卷 1684-1695页

作者： Nilo Cesar Consoli João Vítor de Azambuja Carvalho Alexia Cindy Wagner Hugo Carlos Scheuermann Filho Inácio Carvalho Pedro Pazzoto Cacciari João Paulo de Sousa Silva Civil Engineering Universidade Federal do Rio Grande do SulPorto AlegreRS90035-190Brazil Explorat.o. and Mineral Projects-Mineral Development Centre VALE S.A.Santa LuziaMG33040-900Brazil Department.o. Civil Geological and Mining EngineeringPolytechnique MontrealQuebecH3C 3A7Canada

the disposal of filtered tailings in high dry stacks can induce particle breakage,changing the material's behaviour during the structure's *** grading changes influence material properties at the critical state,and this is not mature for intermediate artificial soils(tailings)in a broad range of confining *** this paper,it aims to describe the behaviour of iron ore tailings in a spectrum of confining pressures broader than the reported in previous studies.A series of consolidated drained(CD)triaxial tests was carried out with confining pressures ranging from 0.075 MPa to 120 *** results show that the amount.o. breakage plays an essential role in the response of iron ore *** existence of curved critical state line(CSL)in both specific volume(ν)-logarithm of mean effective stress(p′)and deviatoric stress(q)-mean effective stress(p′)planes,and different responses in the deviatoric stress-axial strain-volumetric strain curves were *** inverse S-shaped equat.o. was proposed to represent the silty-sandy tailings'behaviour up to high pressures onν-lnp′*** proposed equat.o. provides a basis for enhancing constitutive models and considers the evolut.o. of the grading up to severe loading *** adjustment considered three regions with different responses associated with particle breakage at different pressure levels.

关键词： tailings Iron ore tailings dry stacking Silty-sandy material Critical state soil mechanics High confining pressures Particle breakage

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Basis for the diversity and extent in loss of digestible nutrients created by dietary phytin: Emphasis on fowl and swine

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Animal Nutrit.o. 2024年第1期16卷 422-428页

作者： Edwin t.Moran Michael R.Bedford Poultry Science Department Auburn University AB Vista Woodstock Court Blenheim Road

Phytin is the Ca2+-Mg2+-K+salt.o. phytic acid that is created and deposited in the aleurone layer and/or germ of grains and legumes. Its high presence in feedstuffs for fowl and swine diets results in it being a universal and significant impediment to optimum performance. Phytin impairs gast.o.ntestinal recovery of a wide array of nutrients, the effect varying with the nutrient concerned. on exposure to low pH during gastric digest.o., phytin dissociates into phytic acid and solubilized Ca2+. Even at low gastric pH,phytic acid is negatively charged which forms the basis of its anti-nutritive behavior. Pepsinogen has extensive basic amino acids on its activat.o. peptide that are presented as cat.o.s at low pH which are targeted by pepsin for activat.o.. Partially crystalized Ca2+near the enzyme?s active site further stabilizes its newly formed structure. thus, phytic acid appears to interfere with gastric digest.o. by several mechanisms; interfering with pepsinogen activat.o. by binding to the polypeptide?s basic amino acids;coordinating free Ca2+, destabilizing pepsin; binding some dietary proteins directly, further compromising gastric prot.o.ysis. Upon digesta attaining neutrality in the duodenum, Ca2+and other cat.o.s rebind with accessible anions, phytic acid being a significant contender. Phytate not.o.ly binds free cat.o.s but can also strip them from enzymes(e.g. Ca2+, Zn2+) which reduces their structural resistance to autolysis and ability as co-factors(e.g. Zn2+) to increase enzyme activity. Goblet cells initially employ Ca2+as an elect.o.ic shield between mucin layers enabling granule format.o. and cell storage. After mucin granule release, Ca2+is progressively displaced by Na+to free the viscous mucins enabling its translocat.o.. Mucin entangles with the glycocalyx of adjacent enterocytes thereby constructing the unstirred water layer（USWL）. Excessive removal of Ca2+from mucin by phytic acid increases its fluidity facilitating its loss from the USWL with

关键词： Digestive enzyme Calcium Endogenous protein Mucin Phytin

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3D printing of poly(ethyleneimine)-funct.o.alized Mg-Al mixed metal oxide monoliths for direct air capture of Co_(2)

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Journal of Energy Chemistry 2024年第9期96卷 491-500页

作者： Qingyang Shao Zhuozhen Gan Bingyao Ge Xuyi Liu Chunping Chen Dermot.o.Hare Xuancan Zhu Research Center of Solar Power&Refrigerat.o. School of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240China Chemistry Research Laboratory Department of ChemistryUniversity of OxfordOxford OX13TAUK

Direct air capture(DAC)of Co_(2)plays an indispensable role in achieving carbon-neutral goals as one of the key negative emission *** large air flows are required to capture the ultradilute Co_(2)from the air,lab-synthesized adsorbents in powder form may cause unacceptable gas pressure drops and poor heat and mass transfer efficiencies.A structured adsorbent is essential for the implementat.o. of gas-solid contactors for cost-and energy-efficient DAC *** this study,efficient adsorbent poly(ethyleneimine)(PEI)-funct.o.alized Mg-Al-Co_(3)layered double hydroxide(LDH)-derived mixed metal oxides(MMos)are three-dimensional(3D)printed into monoliths for the first time with more than 90%adsorbent *** printing process has been optimized by initially printing the LDH powder into monoliths followed by calcinat.o. into MMo *** structure exhibits a 32.7%higher specific surface area and a 46.1%higher pore volume,as compared to the direct printing of the MMo powder into a *** impregnat.o. of PEI,the monolith demonstrates a large adsorpt.o. capacity(1.82 mmol/g)and fast kinetics(0.7 mmol/g/h)using a Co_(2)feed gas at 400 ppm at 25℃,one of the highest values among the shaped DAC *** of the amino-polymers during the post-printing process affects the diffusion of Co_(2),resulting in slower adsorpt.o. kinetics of pre-impregnat.o. monoliths compared to post-impregnat.o. *** optimal PEI/MeoH rat.o.for the post-impregnat.o. solut.o. prevents pores clogging that would affect both adsorpt.o. capacity and kinetics.

关键词： 3D printing Mixed metal oxides Amine funct.o.alizat.o. Structured adsorbent Direct air capture

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Distribut.o., health and ecological risk assessments of trace elements in Nigerian oil sands

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Acta Geochimica 2024年第1期43卷 59-71页

作者： odunayo t.o.e Festus M.Adebiyi Department.o. Chemistry Obafemi Awolowo UniversityIle-Ife 220005Nigeria Department.o. Chemical Sciences Achievers UniversityOwoNigeria

the Nigerian oil sands represent the largest.o.l sand deposit in Africa, yet there is little published informat.o. on the distribut.o. and potential health and ecological risks of trace elements in the oil resource. In the present study, we investigated the distribut.o. pattern of 18trace elements(including biophile and chalcophile elements) as well as the estimated risks associated with exposure to these elements. the results of the study indicated that Fe was the most abundant element, with a mean concentrat.o. of 22,131 mg/kg while Br had the lowest mean concentrat.o. of 48 mg/kg. the high occurrence of Fe and ti suggested a possible occurrence of ilmenite(Fe t.o.(3)) in the oil sands. Source apport.o.ment using positive matrix factorizat.o. showed that the possible sources of detected elements in the oil sands were geogenic, metal product.o., and crustal. the contaminat.o. factor, geo-accumulat.o. index, modified degree of contaminat.o., pollut.o. load index, and Nemerow pollut.o. index indicated that the oil sands are heavily polluted by the elements. Health risk assessment showed that children were relatively more susceptible to the potentially toxic elements in the oil sands principally via ingest.o. exposure route(HQ > 1E-04). Cancer risks from inhalat.o. are unlikely due to CR t ingest.o. and dermal contact pose severe risks(CR > 1E-04). the high concentrat.o.s of the elements pose serious threats due to the potential for at.o.pheric transport, bioaccessibility, and bioavailability.

关键词： Biophile Chalcophile oil sand Risk assessment trace element

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the bumpy road of purinergic inhibitors to clinical applicat.o. in immune-mediated diseases

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Neural Regenerat.o. Research 2024年第6期19卷 1206-1211页

作者： Matthias t.Wyss Christine Heuer Marina Herwerth Institute of Pharmacology and toxicology University of ZurichZürichSwitzerland Neuroscience Center Zurich(ZNZ) University of Zurich and ETH ZurichZürichSwitzerland Neurology Department University Hospital of ZurichZürichSwitzerland

Purinergic signaling plays important roles throughout the body in the regulat.o. of organ funct.o.s during and following the disrupt.o. of *** is also reflected by the widespread expression of t.o.families of purinergic receptors(P1 and P2)with numerous *** the last few decades,there has been increasing evidence that purinergic signaling plays an important role in the regulat.o. of immune ***,signals mediated by P2 receptors have been shown to contribute to immune system-mediated ***,interference with P2 receptors may be a promising strategy for the modulat.o. of immune *** only a few clinical studies have been conducted in isolated entities with limited success,preclinical work suggests that the use of P2 receptor inhibitors may bear some promise in various autoimmune *** the associat.o. of P2 receptors with several disorders from this field,the use of P2 receptor antagonists in clinical therapy is still very *** this narrative review,we briefly review the involvement.o. the purinergic system in immunological responses and clinical studies on the effect.o. purinergic inhibit.o. on autoimmune *** then open the aperture a bit and show some preclinical studies demonstrating a potential effect.o. purinergic blockade on autoimmune *** suramin,a non-specific purinergic inhibitor,as an example,we further show that.o.f-target effects could be responsible for observed effects in immunological settings,which may have interesting ***,we believe that it is worthwhile to further investigate this hitherto underexplored area.

关键词： autoimmune diseases neurological disorders purinergic system P2 receptor inhibitors suramin

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