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Three-dimensional forest foodscape in large herbivores’habitat based on UAV with LiDAR detection

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Integrative Zoology 2024年第2期19卷 343-346页

作者： Heng bao Guangshun jiang College of Wildlife and Protected Area Northeast Forestry UniversityHarbinChina Feline Research Center of National Forestry and Grassland Administration HarbinChina Research Center for Northeast Asia Biodiversity Conservation HarbinChina

Traditionally,wildlife habitat research mainly extracts two-dimensional habitat factors.However,they live in three-dimensional space,and the three-dimensional structure of the forest ecosystem is an important factor affecting the composition of the mammal community(Fig.1a,b),and the three-dimensional structure of the forest also determines the behavior pattern of wildlife multidimensional habitat selection or use(Flaspohler et al.2010;Palminteri et al.2012;Müller et al.2014).For instance,forest structure determines the vertical distribution of annual edible shoots,fruits,or seed nuts resources in space,providing additional ecological niches for frugivores,rodents,and other species,and then leading to niche differentiation of wild animals in vertical space utilization,thus increasing species coexistence(e.g.Li et al.2023).

关键词： habitat forest dimensional

A pregnant patient with type II osteogenesis imperfecta pregnancy

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World Journal of Emergency Medicine 2024年第1期15卷 75-76页

作者： Chenyu jiang Chenyi bao Shujuan Shu Department of Obstetrics Women’s HospitalSchool of MedicineZhejiang UniversityHangzhou 310006China

Osteogenesis imperfecta(OI)is a primary bone fragility disorder with an estimated prevalence of 1/15,000 births and is a hereditary syndrome characterized by one or more of the following:fractures,blue sclerae,impaired hearing,defective dentition,and hyperlaxibility throughout life.[1,2]We report a pregnant woman with type II OI and review her prenatal counseling,diagnosis,and pregnancy management to assist obstetricians in understanding the disease and managing it in emergency situations.

关键词： pregnancy impaired diagnosis

Accidental placement of venous return catheter in the superior vena cava during venovenous extracorporeal membrane oxygenation for severe pneumonia: A case report

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World Journal of Clinical Cases 2024年第4期12卷 782-786页

作者： Xiao-Qin Song yun-Long jiang Xian-bao Zou Shi-Chao Chen Ai-Jun Qu Ling-Ling Guo Emergency Department Liaocheng People’s HospitalLiaocheng 252000Shandong ProvinceChina

BACKGROUND Venovenous extracorporeal membrane oxygenation(V-V ECMO)has become an important treatment for severe pneumonia,but there are various complications during the treatment.This article describes a case with severe pneumonia success-fully treated by V-V ECMO,but during treatment,the retrovenous catheter,which was supposed to be in the right internal vein,entered the superior vena cava directly in the mediastinum.The ECMO was safely withdrawn after multidiscip-linary consultation.Our experience with this case is expected to provide a reference for colleagues who will encounter similar situations.CASE SUMMARY A 64-year-old man had severe pulmonary infection and respiratory failure.He was admitted to our hospital and was given ventilation support(fraction of inspired oxygen 100%).The respiratory failure was not improved and he was treated by V-V ECMO,during which the venous return catheter,which was supposed to be in the right internal vein,entered the superior vena cava directly in the mediastinum.There was a risk of massive mediastinal bleeding if the catheter was removed directly when the ECMO was withdrawn.Finally,the patient underwent vena cava angiography+balloon attachment+ECMO with-drawal in the operating room(prepared for conversion to thoracotomy for vascular exploration and repair at any time during surgery)after multidiscip-linary consultation.ECMO was safely withdrawn,and the patient recovered and was discharged.CONCLUSION Patients may have different vascular conditions.Multidisciplinary cooperation can ensure patient safety.Our experience will provide a reference for similar cases.

关键词： Severe pneumonia Extracorporeal membrane oxygenation Complications Superior vena cava Multidisciplinary consultation Case report

Hepatic cystic lesions mimicking liver abscess on imaging: A report oftwo cases

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Hepatobiliary & Pancreatic Diseases International 2024年第1期23卷 86-89页

作者： yun-Wen jiang Yong-Hong Yu Tian-An jiang Shu-Yuan Tian Department of Ultrasound Medicine Tongde Hospital of Zhejiang ProvinceHangzhou 310012China Department of Ultrasound Medicine the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China

Hepatic cystic lesions include congenital dysplasia,inflammatory cystic lesions,neoplastic cystic lesions and parasitic cystic lesions.As different treatment modalities can be chosen for these lesions,differential diagnosis is particularly important[1].Clinical features or imaging findings of cystic lesions of the liver are typical;for instance,liver abscess often shows thick-walled enhancement on contrast-enhanced CT.

关键词： lesions Hepatic cystic

Cytochrome P45026A1 Contributes to the Maintenance of Neuropathic Pain

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Neuroscience Bulletin 2024年第3期40卷 293-309页

作者： De-Li Cao Ling-Jie Ma bao-Chun jiang Qiang Gu Yong-Jing Gao Institute of Pain Medicine and Special Environmental Medicine Co-innovation Center of NeuroregenerationNantong UniversityNantong226019China Nantong University Medical School Nantong226001China Department of Pain Management The Affiliated Hospital of Nantong UniversityNantong226001China

The cytochrome P450 proteins(CYP450s)have been implicated in catalyzing numerous important biological reactions and contribute to a variety of diseases.CYP26A1,a member of the CYP450 family,carries out the oxidative metabolism of retinoic acid(RA),the active metabolite of vitamin A.Here we report that CYP26A1 was dramatically upregulated in the spinal cord after spinal nerve ligation(SNL).CYP26A1 was mainly expressed in spinal neurons and astrocytes.HPLC analysis displayed that the content of all-trans-RA(at-RA),the substrate of CYP26A1,was reduced in the spinal cord on day 7 after SNL.Inhibition of CYP26A1 by siRNA or inhibition of CYP26A1-mediated at-RA catabolism by talarozole relieved the SNL-induced mechanical allodynia during the maintenance phase of neuropathic pain.Talarozole also reduced SNL-induced glial activation and proinflammatory cytokine production but increased anti-inflammatory cytokine(IL-10)production.The RA receptors RARα,RXRβ,and RXRγwere expressed in spinal neurons and glial cells.The promoter of Il-10 has several binding sites for RA receptors,and at-RA directly increased Il-10 mRNA expression in vitro.Finally,intrathecal IL-10 attenuated SNL-induced neuropathic pain and reduced the activation of astrocytes and microglia.Collectively,the inhibition of CYP26A1-mediated at-RA catabolism alleviates SNL-induced neuropathic pain by promoting the expression of IL-10 and suppressing glial activation.CYP26A1 may be a potential therapeutic target for the treatment of neuropathic pain.

关键词： CYP26A1 Microglia Astrocytes ERK P38 IL-10 Neuropathic pain

Prediction of chemical short-range order in high-/medium-entropy alloys

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Journal of Materials Science & Technology 2024年第2期169卷 115-123页

作者： Pei-Yu Cao Jing Wang Ping jiang yun-jiang Wang Fu-Ping Yuan Xiao-Lei Wu State Key Laboratory of Nonlinear Mechanics Institute of MechanicsChinese Academy of ScienceBeijing 100190China School of Engineering Science University of Chinese Academy of SciencesBeijing 100049China

Chemical short-range orders(CSROs),as the built-in sub-nanoscale entities in a high-/medium-entropy alloy(H/MEA),have aroused an ever-increasing interest.With multi-principal elements in an H/MEA to form a complex concentrated solution,a variety of sub-systems of species exist to induce the metastable ordered compounds as candidates for ultimate CSROs.The issues remain pending on the origin of CSROs as to how to judge if CSRO will form in an H/MEA and particularly,what kind of CSROs would be stably produced if there were multiple possibilities.Here,the first-principles method,along with the proposed local formation energy calculation in allusion to the atomic-scale chemical heterogeneities,is used to predict the CSRO formation based on the mechanical stability,thermodynamic formation energy,and electronic characteristics.The simulations are detailed in an equiatomic ternary VCoNi MEA with three kinds of potential compounds,i.e.,L1_(1),L1_(2),and B2,in the face-centered cubic matrix.It turns out that L1_(1)is stable but hard to grow up so as to become the final CSRO.L1_(1)is further predicted as CSROs in CrCoNi,but unable to form in FeCoNi and CrMnFeCoNi alloys.These predictions are consistent with the experimental observations.Our findings shed light on understanding the formation of CSROs.This method is applicable to other H/MEAs to design and tailor CSROs by tuning chemical species/contents and thermal processing for high performance.

关键词： Short-range order High-entropy alloy Microstructure First-principles calculation Gibbs free energy Local electronic density of states

Mechanical Modeling and Analysis of Stability Deterioration of Production Well During Marine Hydrate Depressurization Production

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China Ocean Engineering 2024年第2期38卷 338-351页

作者： SUN Huan-zhao CHANG Yuan-jiang SUN bao-jiang WANG Kang CHEN Guo-ming LI Hao DAI Yong-guo Centre for Offshore Engineering and Safety Technology China University of Petroleum(East China)Qingdao 266580China School of Petroleum Engineering China University of Petroleum(East China)Qingdao 266580China jiangsu Shuguang Oil Tools Co. LtdTaizhou 225532China

Different from oil and gas production,hydrate reservoirs are shallow and unconsolidated,whose mechanical properties deteriorate with hydrate decomposition.Therefore,the formations will undergo significant subsidence during depressurization,which will destroy the original force state of the production well.However,existing research on the stability of oil and gas production wells assumes the formation to be stable,and lacks consideration of the force exerted on the hydrate production well by formation subsidence caused by hydrate decomposition during production.To fill this gap,this paper proposes an analytical method for the dynamic evolution of the stability of hydrate production well considering the effects of hydrate decomposition.Based on the mechanical model of the production well,the basis for stability analysis has been proposed.A multi-field coupling model of the force state of the production well considering the effect of hydrate decomposition and formation subsidence is established,and a solver is developed.The analytical approach is verified by its good agreement with the results from the numerical method.A case study found that the decomposition of hydrate will increase the pulling-down force and reduce the supporting force,which is the main reason for the stability deterioration.The higher the initial hydrate saturation,the larger the reservoir thickness,and the lower the production pressure,the worse the stability or even instability.This work can provide a theoretical reference for the stability maintaining of the production well.

关键词： natural gas hydrate production well depressurization production formation deformation stability deterioration

The Consistency of LSE Estimators in Partial Linear Regression Models under Mixing Random Errors

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Acta Mathematica Sinica,English Series 2024年第5期40卷 1244-1272页

作者： yun bao YAO Yu Tan LÜ Chao LU Wei WANG Xue Jun WANG School of Mathematical Sciences Anhui UniversityHefei 230601P.R.China School of Big Data and Artificial Intelligence Chizhou UniversityChizhou 247000P.R.China School of Big Data and Statistics Anhui UniversityHefei 230601P.R.China

In this paper,we consider the partial linear regression model y_(i)=x_(i)β^(*)+g(ti)+ε_(i),i=1,2,...,n,where(x_(i),ti)are known fixed design points,g(·)is an unknown function,andβ^(*)is an unknown parameter to be estimated,random errorsε_(i)are(α,β)-mix_(i)ng random variables.The p-th(p>1)mean consistency,strong consistency and complete consistency for least squares estimators ofβ^(*)and g(·)are investigated under some mild conditions.In addition,a numerical simulation is carried out to study the finite sample performance of the theoretical results.Finally,a real data analysis is provided to further verify the effect of the model.

关键词： (α,β)-mixing random variables partial linear regression model least squares estimator consistency

Effect of Maternal DEHP Exposure on Lipid Metabolism in Adult Male Rats and the Antagonistic Effect of Genistein

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Biomedical and Environmental Sciences 2024年第3期37卷 315-319页

作者： ZHANG yun Bo LI jiang Li TIAN Jie NA Xiao Lin Department of Environmental Hygiene Public Health CollegeHarbin Medical UniversityHarbin 150081HeilongjiangChina

Lipid metabolism refers to the biochemical processes involved in synthesising,storing,utilising,and breaking down lipids in living organisms.Lipids are essential for various physiological functions,including energy storage,insulation,protection of organs,and the formation of cell membranes.Aberrations in lipid metabolism can lead to a number of health issues,such as atherosclerosis,obesity,and type 2 diabetes,etc.[1].Environmental factors,genetics,and lifestyle factors are some of the factors that can contribute to the development of dyslipidemia.Currently,there is a growing academic interest in the impact of environmental factors.

关键词： Lipid metabolism organs