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海洋地质 2017年第1期33卷 52-75页

作者： s.petersen K.Kuhn T.Kuhn 杜民不详广州海洋地质调查局矿产所

Logatchev热液区（大西洋中脊14°45′N处）是为数不多的与超基性岩有关的海底热液系统之一。它位于裂谷壁的东部内侧，距离扩张轴7km，其形成先前认为与拆离断层作用和核杂岩有关。利用各种遥控潜水器、地质采样与浅钻的地质填图揭示... 详细信息

Logatchev热液区（大西洋中脊14°45′N处）是为数不多的与超基性岩有关的海底热液系统之一。它位于裂谷壁的东部内侧，距离扩张轴7km，其形成先前认为与拆离断层作用和核杂岩有关。利用各种遥控潜水器、地质采样与浅钻的地质填图揭示了热液活动的构造控制因素，同时揭示其处于由非均质超镁铁质和镁铁质侵入岩组成的碎屑流以内的位置。混合的镁铁质／超镁铁质围岩岩性与已经发表的喷口流体和气体的化学数据一致，其展示了因与镁铁质、超镁铁质岩石相互作用的特征。块状硫化物的形成比之前所认识的更加集中，且可能仅限于海底的薄覆盖层。Logatchev热液区表现出很多其他热液区不常见的特性。其中之一就是所谓的“烟囱洼坑”，该海底洼地宽数米，以由小部分硫化物碎屑和大量围岩物质组成的上升环边为特征。在这些烟囱喷口，热液喷出作用直接来自于喷口内的孔洞和环边上小型厘米至分米级高的富铜烟囱。基于地质填图和采样，我们认为这些烟囱喷口是超镁铁质岩主控、发育大量滑塌的洋脊轴外位置处、与区域及局部地质背景相关的产物，同时也与为热液对流单元供热的辉长岩侵入有关。

关键词：超镁铁质围岩热液系统大西洋中脊块状硫化物岩石学

Effect of processing and accelerated storage on the volatile composition and sensory profile of a tomato soup

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Food Quality and safety 2022年第2期6卷 341-352页

作者： Lena C.strohla Krishnachandra s.Hidangmayum sandra s.Waehrens Vibeke Orlien Mikael A.petersen Department of Food science University of Copenhagen1958 Frederiksberg CDenmark

The volatile and sensory profile of pasteurized(95℃,18 min)and sterilized(120℃,14 min)tomato soup and its changes at accelerated storage conditions(37℃and 42℃)were identified,characterized,and correlated by predictive *** led to more profound changes over storage compared to pasteurisation,showing enhanced levels of‘dark'odour,‘burnt'flavour,and‘complexity',while pasteurized soup had more pronounced‘green'odour,‘vegetables'flavour,‘harmony',and‘freshness'.Over time,‘dark'and‘burnt'significantly increased for sterilized soups,whereas‘green'decreased significantly only for sterilized soup stored at 42℃.The changes of‘dark',‘green',‘off-flavour,‘burnt',‘har mony',and‘freshness'were associated with formation of furans(furfural and 2-acetyl-5-methylfuran),and decline of unsaturated aldehydes like E-2-octenal and E,E-2,*** compounds were identified to represent potential shelf-life markers,yet more studies on their odour activity in the tomato soup matrix are necessary to understand their contribution to the sensory *** construction of partial least squares models allowed the prediction of‘green',‘off-flavour',‘burnt',and‘freshness'based on selected *** models will be important tools in the process of predicting the end of shelf life,but need to be supplemented with consumer acceptability levels.

关键词： Volatile composition sensory profile accelerated storage tomato soup shelf life prediction partial least dquares regression

Clinical and dietary predictors of common carotid artery intima media thickness in a population with type 1 and type 2 diabetes: A cross-sectional study

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World Journal of Diabetes 2017年第1期8卷 18-27页

作者： Kristina s.petersen Jennifer B Keogh Peter J Meikle Manohar L Garg Peter M Clifton school of Pharmacy and Medical sciences University of South Australia Baker IDI Heart and Diabetes Institute Nutraceuticals Research Group University of NewcastleCallaghan

AIM To determine the clinical and dietary predictors of common carotid artery intima media thickness(CCA IMT) in a cohort of subjects with type 1 and type 2 diabetes. METHODs Participants with type 1(n = 23) and type 2 diabetes(n = 127) had mean and mean maximum CCA IMT measured using B mode ultrasound. Dietary intake was measured using a food frequency questionnaire. Clinical and dietary predictors of mean and mean maximum CCA IMT were determined using linear regression analysis adjusted for potential confounders. REsULTs The main predictors of mean and mean maximum CCA IMT were age and weight. After multivariate adjustment there were no dietary predictors of CCA IMT. However,in subjects that were not prescribed a lipid lowering medication alcohol consumption was positively associated with CCA IMT after multivariate adjustment. No difference existed in CCA IMT between subjects with type 1 or type 2 diabetes once age was adjusted for. CONCLUsION CCA IMT was predominantly predicted by age and weight in these subjects with diabetes. The finding that CCA IMT was not different between people with type 1 and type 2 diabetes warrants further investigation in a larger cohort.

关键词： Diabetes Carotid intima media thickness Arterial structure Diet Lipidomics Carotenoids

Evaluation of a new qPCR test to identify the organisms causing high total bacterial count in bulk tank milk

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Journal of Integrative Agriculture 2018年第6期17卷 1241-1245页

作者： Jorgen Katholm Lene Trier Olesen Anders.petersen snorri sigurdsson DNA Diagnostic A/s Risskov 8240Denmark ARLA Foods amba Viby 8260Denmark sEGEs Aarhus N 8200Denmark

Milk quality in bulk tank milk （BTM） is measured by flow cytometry technology as total bacterial count （TBC） and somatic cell count （sCC）. To investigate sCC problems, culture or PCR can be used to identify mastitis causing bacteria, e.g., Mastit 4, a commercially available qPCR test. TBC in BTM can be investigated further using culture-based methods such as standard plate count, laboratory pasteurization count, coliform count, and spore counts. To our knowledge, no qPCR addressing the bacteria involved in TBC has been commercially introduced. The aim of this study is to evaluate a recently introduced 3-h qPCR test, TBC 4. The TBC 4 qPCR detects four target groups, Pseudomonas, streptococci, Enterobacteriacea/ Enterococcus, and Bacillus/Clostridia. These target groups relate to problems on the farm such as cooling, mastitis, environment, and silage. We will continue with new research to compare the TBC 4 qPCR test with traditional culture. For this study, BTM samples from different TBC intervals were selected based on BactoCount results found at routine payment investigation at Eurofins laboratory （Vejen, Denmark）. These samples were analyzed using TBC 4 qPCR assay within 24 h. In total, 346 BTM samples were divided into six different intervals of colony forming units （CFU）. For all four targets in each of the different intervals of CFU, the percent of positive samples, the average Ct-value, the percent of positive samples with Ct〈30 and Ct〈25 were calculated. For Pseudomonas, streptococci, and Enterobacteriacea/Enterococcus, the number of positive samples with lower Ct-values （high bacteria content） correlated with the CFU mL-1. We found Enterobacteriacea/ Enterococcus, Pseudomonas, and streptococci in high number of bacteria （Ct〈25） in 25, 19 and 56％ of samples with CFU mL-1 between 50001-100000 and 53, 44, and 39％ in samples with CFU mL-1〉100000. The TBC 4 qPCR test showed to be a strong and fast tool for farmers, advisors and service technicians to address probl

关键词： TBC bulk tank milk qPCR milk quality

Association between dairy intake,lipids and vascular structure and function in diabetes

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World Journal of Diabetes 2017年第5期8卷 202-212页

作者： Kristina s.petersen Jennifer B Keogh Natalie Lister Jacquelyn M Weir Peter J Meikle Peter M Clifton school of Pharmacy and Medical sciences and sansom Institute for Health Research University of South Australia Baker IDI Heart and Diabetes Institute

AIM To determine lipid species that change in response to a change in dairy consumption. In addition, to investigate whether dairy associated lipid species are correlated with changes in measures of vascular structure and *** A 12-mo randomised controlled trial was conducted to determine the effect of increased consumption of fruit, vegetables and dairy, compared to usual diet, on measures of vascular structure and function in adults with type 1 and type 2 diabetes(n = 108). Thispaper comprises post-hoc analyses investigating the relationship between dairy intake, serum lipid species and vascular health. Central and peripheral blood pressure, carotid femoral pulse wave velocity, augmentation index, serum lipid species and dietary intake were measured at baseline and 3-mo. Common carotid artery intima media thickness was measured at baseline and *** serum lipid species [lysophosphatidylcholine(LPC) 14:0, LPC 15:0, LPC 16:1, phosphatidylcholine(PC) 29:0 PC 30:0, PC 31:0 and cholesterol ester(CE) 14:0] were associated with the change in full fat dairy consumption(rho 0.19-0.25; P some lipids was positively associated with the 3-mo change in central systolic [LPC 14:0(rho 0.30; P = 0.007), PC 30:0(rho 0.28; P = 0.010)] and diastolic blood pressure [LPC 14:0(rho 0.32; P = 0.004), LPC 15:0(rho 0.23; P = 0.04), LPC 16:1(rho 0.23; P = 0.035), PC 29:0(rho 0.28; P = 0.01), PC 30:0(rho 0.36; P = 0.001), PC 31:0(rho 0.30; P = 0.007)] and 12-mo change in common carotid artery intimal medial thickness [CE 14:0(rho 0.22; P = 0.02)]. Pulse wave velocity and augmentation index were unrelated to dairy and lipid *** An increase in dairy associated lipids appears to be associated with an increase in blood pressure and common carotid intimal medial thickness.

关键词： Lipids Phospholipids Atherosclerosis Dairy Lysophosphatidylcholine Lipidomics Carotid intima media thickness Pulse wave velocity Diabetes

Observational study of a new modular femoral revision system

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World Journal of Orthopedics 2020年第3期11卷 167-176页

作者： Karen Dyreborg Michael Mørk petersen sidse schwartz Balle Anne Grete Kjersgaard søren solgaard Department of Orthopaedic surgery Herlev-Gentofte Hospital2900 HellerupDenmark Department of Orthopaedic surgery Rigshospitalet2100 KøbenhavnDenmark Department of Diagnostic Radiology Herlev-Gentofte Hospital2900 HellerupDenmark

BACKGROUND The uncemented ArcosTM Modular Femoral Revision system(ARCOs)is a new comprehensive,press-fit revision *** modular design offers a wide range of possible combinations to accommodate different variations of anatomy and bone *** ARCOs is made by a proximal body and a distal *** probably the only ones worldwide we predominantly use a combination of body and stem which supports proximal fixation and load,since this mimics the concept of the primary total hip arthroplasty with proximal weight-bearing,leading to bone stock preservation and no stress shielding or thigh *** To evaluate the early results after femoral revision in a consecutive series of patients undergoing surgery over 3 *** We included 116 patients in the *** were operated in the period August 2011 to December 2014 and we got a clinical mean observation time of 4(0.5-6)*** and radiographical follow-up included present function of the hip assessed by Harris Hip score,Oxford Hip score,and EQ5D(measure of health outcome).Of the 116 patients,17 died in the interim and were consequently included only in the implant survivorship analysis;46 patients attended the follow-up *** In total 6(5%)hips were re-revised due to infection(n=3),fracture(n=2)or subsidence(n=1).No patient was re-revised due to aseptic *** 1-,2-and 5-year probability of implant survival(95%CI)were 97%(93%-100%),97%(93%-100%)and 96%(92%-99%),*** this cohort 95 patients received a combination of a proximal broach and a distal curved and slotted stem(Bs),aiming for proximal fixation and load bearing;21 patients received a different *** comparing these two groups the Bs-group had a 5-year implant survival probability(95%CI)of 97%(93%-100%)compared with the group of other combinations with a 5-year implant survival probability(95%CI)of 90%(78%-100%)(P=0.3).Our regression analysis showed that periprosthetic fracture as an indication for the ARCO

关键词： Hip prosthesis Arthroplasty Implantation Replacement arthroplasty Total hip replacements Modular femoral stem

A pediatric robotic thumb exoskeleton for at-home rehabilitation The isolated orthosis for thumb actuation(IOTA)

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International Journal of Intelligent Computing and Cybernetics 2014年第3期7卷 233-252页

作者： Patrick Aubin Kelsey petersen Hani sallum Conor Walsh Annette Correia Leia stirling Rehabilitation and Development Center of Excellence for Limb Loss Prevention and Prosthetic Engineering VA Puget Sound Health Care SystemSeattleWashingtonUSA Wyss Institute for Biologically Inspired Engineering Harvard UniversityBostonMassachusettsUSA Boston Children’s Hospital BostonMassachusettsUSA Wyss Institute for Biologically Inspired Engineering Harvard UniversityBostonMassachusettsUSA and Massachusetts Institute of TechnologyCambridgeMassachusettsUSA

Purpose–Pediatric disorders,such as cerebral palsy and stroke,can result in thumb-in-palm deformity greatly limiting hand *** not only limits children’s ability to perform activities of daily living but also limits important motor skill ***,the isolated orthosis for thumb actuation(IOTA)is 2 degrees of freedom(DOF)thumb exoskeleton that can actuate the carpometacarpal(CMC)and metacarpophalangeal(MCP)joints through ranges of motion required for activities of daily *** paper aims to discuss these ***/methodology/approach–IOTA consists of a lightweight hand-mounted mechanism that can be secured and aligned to individual *** mechanism is actuated via flexible cables that connect to a portable control *** encoders and bend sensors monitor the 2 DOF of the thumb and flexion/extension of the wrist.A linear force characterization was performed to test the mechanical efficiency of the cable-drive transmission and the output torque at the exoskeletal CMC and MCP joints was ***–Using this platform,a number of control modes can be implemented that will enable the device to be controlled by a patient to assist with opposition grasp and fine motor *** force and torque studies showed a maximum efficiency of 44 percent,resulting in a torque of 2.3971.06 in.-lbf and 0.6970.31 in.-lbf at the CMC and MCP joints,*** implications–The authors envision this at-home device augmenting the current in-clinic and at-home therapy,enabling telerehabilitation ***/value–This paper presents the design and characterization of a novel device specifically designed for pediatric grasp telerehabilitation to facilitate improved functionality and somatosensory learning。

关键词： Pediatric Exoskeleton At-home hand rehabilitation Rehabilitation robotics Thumb

景观规划导向的绿色基础设施研究进展——基于“格局—过程—服务—可持续性”研究范式

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自然资源学报 2021年第2期36卷 435-448页

作者：李凯侯鹰 Hans skov-petersen Peter s.Andersen 哥本哈根大学地理科学与自然资源管理系哥本哈根1165 中国科学院生态环境研究中心城市与区域生态国家重点实验室北京100085

中国目前处于新型城镇化与生态文明建设的重要时期,引入绿色基础设施(Green Infrastructure,GI)规划框架对协调城市发展与生态保护具有重要意义。基于景观生态学中"格局—过程—服务—可持续性"研究范式,对近年来中国内外GI规划进行针... 详细信息

中国目前处于新型城镇化与生态文明建设的重要时期,引入绿色基础设施(Green Infrastructure,GI)规划框架对协调城市发展与生态保护具有重要意义。基于景观生态学中"格局—过程—服务—可持续性"研究范式,对近年来中国内外GI规划进行针对性综述,利用该范式对相关研究的理论来源与进展进行梳理。研究表明:GI格局研究中,景观格局指数是应用最为广泛的方法。针对于景观连接度,形态学空间格局分析等结构连接度评价方法具有计算简单、适用性广的优势,但缺乏明确的生态学含义;图论等功能连接度则针对特定的生态过程,是GI格局与生态过程的重要联系,将是下一步研究重点。GI生态过程研究借鉴生态网络的理论与方法,其规划步骤可分为核心区选取、阻力面构建、潜在廊道识别三部分。GI生态系统服务研究中,生物物理量模型与经济计量模型广泛应用于调节、供给与支持服务评价中,而文化服务评价则将问卷调查作为基础数据获取的重要途径。另外,生态系统服务需求研究涉及到生态系统服务的实际需求与使用偏好,相关定量评价方法以及成果的实际应用有待进一步探索。GI景观可持续性研究中,在明晰GI提供的生态系统服务总量的基础上,服务间权衡与协同效应已成为GI规划中的重要考量,而情景规划可以有效模拟GI生态系统服务的动态变化。最后,GI规划应将提升景观可持续性作为规划目标,据此研究提出了重视格局与过程相互影响机制的基础研究、加深GI生态系统服务需求端研究、明晰生态系统服务间协同与权衡效应、将GI与实际规划结合四项研究展望。

关键词：风景园林景观生态学格局—过程—服务—可持续性绿色基础设施

Clinical outcome after surgery on schwannomas in the extremities

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World Journal of Orthopedics 2021年第10期12卷 760-767页

作者： Andreas saine Granlund Michala skovlund sørensen Claus Lindkær Jensen Birthe Højlund Bech Michael Mørk petersen Musculoskeletal Tumor section Department of Orthopedic SurgeryCopenhagen University HospitalRigshospitaletCopenhagen 2100Denmark Department of Orthopedic surgery Copenhagen University HospitalCopenhagen 2200Denmark Musculoskeletal Tumor section Department of Orthopedic SurgeryUniversity of CopenhagenCopenhagen 2100Denmark Department of Radiology RigshospitaletUniversity of CopenhagenCopenhagen 2100Denmark

BACKGROUND schwannoma is a benign,encapsulated and slowly growing tumor originating from schwann cells and is rarely seen in the peripheral nerve *** symptoms are soreness,radiating pain and sensory loss combined with a soft tissue *** To evaluate pre-and postoperative symptoms in patients operated for schwannomas in the extremities and investigate the rate of malignant *** In this single center retrospective study design,all patients who had surgery for a benign schwannoma in the extremities from May 1997 to January 2018 were *** location of the tumor in the extremities was divided into five groups;forearm,arm,shoulder,thigh and leg including *** locations of the tumor in the nerves were also categorized as either;proximal,distal,minor or major *** the pre-and postoperative clinical evaluation,symptoms were classified as paresthesia,local pain,radiating pain,swelling,impairment of mobility/strength and asymptomatic tumors that were found incidentally(with magnetic resonance imaging).The patients were evaluated after surgery using the following categories:Asymptomatic or symptomatic patients(radiating and/or local pain)and those with *** follow up period was from the time of surgery until last examination of the particular *** logistic regression analysis was performed to identify independent prognostic factors for postoperative significant symptoms at *** We identified 858 cases from the institutional pathology *** excluded cases with duplicate diagnoses(n=407),pathology not including schwannomas(n=157),lesions involving the torso,spine and neck(n=150)leaving 144 patients for further *** this group 99 patients underwent surgery and there were five complications recorded:2 infections(treated with antibiotics)and 3 nerve palsies(2 involving the radial nerve and one involving the median nerve)that recovered *** the end of follow-up,1.4

关键词： schwannoma Extremities surgery Removal symptoms Outcome