252 results on '"Michael Bohnert"'
Search Results
52. Mobile Cloud Networking: Mobile Network, Compute, and Storage as One Service On-Demand.
- Author
-
Almerima Jamakovic, Thomas Michael Bohnert, and Georgios Karagiannis
- Published
- 2013
- Full Text
- View/download PDF
53. Myelin basic protein and neurofilament H in postmortem cerebrospinal fluid as surrogate markers of fatal traumatic brain injury
- Author
-
Stefanie Trella, Camelia-Maria Monoranu, Michael Bohnert, Simone Bohnert, Werner Schmitz, Christoph Wirth, and Benjamin Ondruschka
- Subjects
Adult ,Male ,Pathology ,medicine.medical_specialty ,Neurofilament ,Traumatic brain injury ,Immunocytochemistry ,Autopsy ,CSF ,Enzyme-Linked Immunosorbent Assay ,Biofluid ,Pathology and Forensic Medicine ,03 medical and health sciences ,0302 clinical medicine ,Cerebrospinal fluid ,Neurofilament Proteins ,Brain Injuries, Traumatic ,medicine ,Humans ,ddc:610 ,030216 legal & forensic medicine ,Aged ,Aged, 80 and over ,biology ,Forensic neuropathology ,business.industry ,Myelin Basic Protein ,Biomarker ,Middle Aged ,medicine.disease ,Immunohistochemistry ,Myelin basic protein ,Staining ,Forensic neurotraumatology ,Case-Control Studies ,biology.protein ,Original Article ,Female ,business ,030217 neurology & neurosurgery ,Biomarkers - Abstract
The aim of this study was to investigate if the biomarkers myelin basic protein (MBP) and neurofilament-H (NF-H) yielded informative value in forensic diagnostics when examining cadaveric cerebrospinal fluid (CSF) biochemically via an enzyme-linked immunosorbent assay (ELISA) and comparing the corresponding brain tissue in fatal traumatic brain injury (TBI) autopsy cases by immunocytochemistry versus immunohistochemistry. In 21 trauma and 19 control cases, CSF was collected semi-sterile after suboccipital puncture and brain specimens after preparation. The CSF MBP (p = 0.006) and NF-H (p = 0.0002) levels after TBI were significantly higher than those in cardiovascular controls. Immunohistochemical staining against MBP and against NF-H was performed on cortical and subcortical samples from also biochemically investigated cases (5 TBI cases/5 controls). Compared to the controls, the TBI cases showed a visually reduced staining reaction against MBP or repeatedly ruptured neurofilaments against NF-H. Immunocytochemical tests showed MBP-positive phagocytizing macrophages in CSF with a survival time of > 24 h. In addition, numerous TMEM119-positive microglia could be detected with different degrees of staining intensity in the CSF of trauma cases. As a result, we were able to document that elevated levels of MBP and NF-H in the CSF should be considered as usefulneuroinjurybiomarkers of traumatic brain injury.
- Published
- 2021
54. Study of the K-S distance on skulls from different modern populations for sex and ancestry determination
- Author
-
Richard L. Jantz, Katharina Jellinghaus, S. Matin, Petra Kathrin Urban, and Michael Bohnert
- Subjects
010401 analytical chemistry ,Significant difference ,01 natural sciences ,0104 chemical sciences ,Pathology and Forensic Medicine ,03 medical and health sciences ,Skull ,0302 clinical medicine ,medicine.anatomical_structure ,Geography ,medicine ,ddc:610 ,030216 legal & forensic medicine ,Demography - Abstract
In forensic science determination of the origin and sex of skeletal remains is an important task for identification purposes. In this study we investigated the krotaphion-sphenion distance (K‑S distance) in the pterion region of German, Euro-American, African-American and Rwandan skulls of modern individuals from the nineteenth to the twenty-first century to look for statistically significant differences in sex and ancestry. We found a statistically significant sex-specific difference in the K‑S distance, which was greater in male skulls than in female skulls for both sides of the skull. Our study also showed that there is a statistically significant difference in the K‑S distance between the four populations studied. Landmarks and morphometric parameters measured in our investigations, which were not used for the present examination were provided to the software program Fordisc for its reference data to enhance the range of its usability for identification of unknown skulls or partial skulls of European individuals., Bei der forensischen Begutachtung zur Identifizierung unbekannter Skelettfunde spielen Herkunftsanlaysen und Geschlechtsbestimmungen eine bedeutende Rolle. In unserer Studie an euroamerikanischen, afroamerikanischen, ruandischen und deutschen Schädeln untersuchte unsere Arbeitsgruppe die sog. Krotaphion-Sphenion-Distanz in der Pterion Region am menschlichen Schädel, um geschlechts- und herkunftsspezifische Unterschiede näher zu beleuchten. Unsere Ergebnisse zeigen einen signifikanten Unterschied in der K‑S-Distanz: Männliche Individuen zeigten auf beiden Seiten des Schädels signifikant größere Werte als weibliche Individuen, des Weiteren waren signifikante Unterschiede unter den vier untersuchten Populationen festzustellen. Die weiteren, im Rahmen der Studie gemessenen, jedoch für die vorliegende Auswertung nicht verwendeten Landmarken und morphometrischen Parameter der Schädel gingen in die Datenbank für die Identifizierungs-Software Fordisc ein, um deren Datengrundlage und damit Nutzbarkeit zur Identifikation unbekannter Schädel oder Schädelteile europäischer Individuen zu verbessern.
- Published
- 2020
55. TMEM119 as a specific marker of microglia reaction in traumatic brain injury in postmortem examination
- Author
-
Stefanie Trella, Camelia-Maria Monoranu, Luitpold Distel, Simone Bohnert, Michael Bohnert, Benjamin Ondruschka, and Anja Seiffert
- Subjects
Male ,Pathology ,0302 clinical medicine ,Cerebrospinal fluid ,Cerebellum ,Pons ,Cortex (anatomy) ,Brain Injuries, Traumatic ,Receptors, Immunologic ,Child ,Forensic Pathology ,Aged, 80 and over ,0303 health sciences ,Membrane Glycoproteins ,Microglia ,Human brain ,Middle Aged ,Immunohistochemistry ,White Matter ,medicine.anatomical_structure ,Child, Preschool ,Female ,Original Article ,Autopsy ,Immunocytochemistry ,Adult ,medicine.medical_specialty ,Adolescent ,Receptors, CCR2 ,Traumatic brain injury ,Pathology and Forensic Medicine ,White matter ,Young Adult ,03 medical and health sciences ,medicine ,Humans ,ddc:610 ,Neuroinflammation ,Aged ,030304 developmental biology ,Forensic neuropathology ,business.industry ,Membrane Proteins ,Biomarker ,medicine.disease ,Forensic neurotraumatology ,business ,Biomarkers ,030217 neurology & neurosurgery - Abstract
The aim of the present study was a refined analysis of neuroinflammation including TMEM119 as a useful microglia-specific marker in forensic assessments of traumatic causes of death, e.g., traumatic brain injury (TBI). Human brain tissue samples were obtained from autopsies and divided into cases with lethal TBI (n = 25) and subdivided into three groups according to their trauma survival time and compared with an age-, gender-, and postmortem interval-matched cohort of sudden cardiovascular fatalities as controls (n = 23). Brain tissue samples next to cortex contusions and surrounding white matter as well as samples of the ipsilateral uninjured brain stem and cerebellum were collected and stained immunohistochemically with antibodies against TMEM119, CD206, and CCR2. We could document the highest number of TMEM119-positive cells in acute TBI death with highly significant differences to the control numbers. CCR2-positive monocytes showed a significantly higher cell count in the cortex samples of TBI cases than in the controls with an increasing number of immunopositive cells over time. The number of CD206-positive M2 microglial cells increased survival time-dependent. After 3 days of survival, the cell number increased significantly in all four regions investigated compared with controls. In sum, we validate a specific and robustly expressed as well as fast reacting microglia marker, TMEM119, which distinguishes microglia from resident and infiltrating macrophages and thus offers a great potential for the estimation of the minimum survival time after TBI. Electronic supplementary material The online version of this article (10.1007/s00414-020-02384-z) contains supplementary material, which is available to authorized users.
- Published
- 2020
56. Tödliche Hirnmassenblutung infolge Vitamin-K-Mangels bei einem 9 Wochen alten Säugling
- Author
-
C. Siauw, F. Al-Tinawi, Michael Bohnert, Simone Bohnert, and Camelia-Maria Monoranu
- Subjects
Gynecology ,medicine.medical_specialty ,business.industry ,Shaken baby syndrome ,medicine.disease ,Pathology and Forensic Medicine ,03 medical and health sciences ,0302 clinical medicine ,medicine ,ddc:610 ,030216 legal & forensic medicine ,030212 general & internal medicine ,Vitamin K Deficiency Bleeding ,business ,Intracranial bleeding - Abstract
Intrakranielle Blutungen sind im Säuglingsalter seltene, aber lebensbedrohende Ereignisse. Neben Gefäßmissbildungen, Stoffwechseldefekten sowie Störungen der Blutgerinnung kommen v. a. nichtakzidentielle Traumata, Schütteltrauma in Betracht. Die klinische Diagnostik umfasst hinsichtlich der Blutungsgenese neben Sonographie und MRT als apparatives Verfahren auch eine Fundoskopie sowie laborchemische Analysen, insbesondere der Gerinnungsparameter. Für die Blutgerinnung ist das fettlösliche Vitamin K essenziell: Frühe, klassische und späte Vitamin-K-Mangel-Blutungen werden dabei unterschieden. Um ein gehäuftes Wiederauftreten von Vitamin-K-Mangel-Blutungen bei Neugeborenen und jungen Säuglingen zu verhindern, bedarf es einer hinreichenden Aufklärung der Eltern. Eine Verweigerung der Prophylaxe scheint Folge einer weltanschaulich begründeten Ablehnung der Schulmedizin und ein zunehmendes Phänomen in wohlhabenden Industrieländern zu sein., Intracranial hemorrhages in infants are rare but life-threatening events. Apart from vascular malformations, metabolic disorders and coagulopathies, nonaccidental trauma, in particular shaken baby syndrome must be taken into consideration. Clinical diagnostic tests and procedures to further evaluate the etiology of the hemorrhage include sonography and magnetic resonance imaging (MRI) as imaging procedures as well as fundoscopy and laboratory tests, especially with respect to coagulation parameters. Fat-soluble vitamin K is essential for blood coagulation. A differentiation is made between classical and delayed hemorrhages due to vitamin K deficiency. In order to avoid an increased recurrence of bleeding due to vitamin K deficiency in neonates and young infants, an adequate clarification for the parents is necessary. A refusal of prophylaxis seems to be the result of an ideologically founded rejection of classical medicine and an increasing phenomenon in affluent industrial countries.
- Published
- 2020
57. QoS management and control for an all-IP WiMAX network architecture: Design, implementation and evaluation.
- Author
-
Thomas Michael Bohnert, Marco Castrucci, Nicola Ciulli, Giada Landi, Ilaria Marchetti, Cristina Nardini, Bruno Sousa, Pedro Neves 0001, and Paulo Simões 0001
- Published
- 2008
- Full Text
- View/download PDF
58. Multi-Class Measurement Based Admission Control for a QoS Framework with Dynamic Resource Management.
- Author
-
Thomas Michael Bohnert and Edmundo Monteiro
- Published
- 2007
- Full Text
- View/download PDF
59. Network Simulation and Performance Evaluation of WiMAX Extensions for Isolated Research Data Networks
- Author
-
Thomas Michael Bohnert, Jakub Jakubiak, Marcos Katz, Yevgeni Koucheryavy, Edmundo Monteiro, and Eugen Borcoci
- Subjects
WiMAX ,IEEE 802.16 ,NS-2 ,simulation ,WEIRD ,Computer software ,QA76.75-76.765 - Abstract
IEEE 802.16 is yet a very recent technology and released hardware does frequently only support standards partially. The same applies to public available simulation tools, in particular for NS-2. As the latter is the de-facto standard in science and as we use it for our research in the context of the WEIRD project, we evaluate the IEEE 802.16 support for NS-2. We present several general but also specific issues, which areimportant in order to carry out reliable research based on thesetools. In particular, we show in much detail where modulesdeviate significantly and even fail totally.
- Published
- 2008
60. Grundwissen Rechtsmedizin
- Author
-
Michael Bohnert
- Abstract
Michael Bohnert führt in diesem Buch leicht verständlich in die Rechtsmedizin ein. Er erklärt die verschiedenen Untersuchungsmethoden sowie Wissenswertes zur Thanatologie und medizinischen Kriminalistik. Ausführlich beschreibt er die unterschiedlichen Verletzungsarten und ihre Merkmale. Ein Kapitel zu den forensischen Wissenschaften rundet diese Einführung ab. Auch für Nichtmediziner geeignet!
- Published
- 2021
61. SDN enabled QoS provision for online streaming services in residential ISP networks.
- Author
-
Irena Trajkovska, Philipp Aeschlimann, Christof Marti, Thomas Michael Bohnert, and Joaquín Salvachúa
- Published
- 2014
- Full Text
- View/download PDF
62. Real-time streaming in the cloud can increase the provider's profit and the P2P users' benefit.
- Author
-
Irena Trajkovska, Piyush Harsh, Thomas Michael Bohnert, and Joaquín Salvachúa
- Published
- 2014
- Full Text
- View/download PDF
63. Towards a Swiss National Research Infrastructure.
- Author
-
Peter Z. Kunszt, Sergio Maffioletti, Dean Flanders, Markus Eurich, Thomas Michael Bohnert, Andrew Edmonds 0001, Heinz Stockinger, Sigve Haug, Almerima Jamakovic-Kapic, Placi Flury, Simon Leinen, and Eryk Schiller
- Published
- 2014
64. Quantitative evidence of suppressed TMEM119 microglial immunohistochemistry in fatal morphine intoxications
- Author
-
Andreas Büttner, Benjamin Ondruschka, Michael Bohnert, Simone Bohnert, Camelia-Maria Monoranu, and Kosmas Georgiades
- Subjects
Pathology ,medicine.medical_specialty ,Short Communication ,Pilot Projects ,Drug abuse ,Pathology and Forensic Medicine ,Methamphetamine ,chemistry.chemical_compound ,Neuroinflammation ,medicine ,Neurotoxicity ,Hippocampus (mythology) ,Humans ,ddc:610 ,Microglia ,Morphine ,Forensic neuropathology ,business.industry ,Membrane Proteins ,Human brain ,Meth ,medicine.disease ,Immunohistochemistry ,medicine.anatomical_structure ,chemistry ,business ,medicine.drug - Abstract
The aim of this pilot study was to investigate the diagnostic potential of TMEM119 as a useful microglia-specific marker in combination with immunostainings for phagocytic function and infiltrating capacity of monocytes in cases of lethal monosubstance intoxications by morphine (MOR), methamphetamine (METH), and of ethanol-associated death (ETH) respectively. Human brain tissue samples were obtained from forensic autopsies of cases with single substance abuse (MOR, n = 8; ETH, n = 10; METH, n = 9) and then compared to a cohort of cardiovascular fatalities as controls (n = 9). Brain tissue samples of cortex, white matter, and hippocampus were collected and stained immunohistochemically with antibodies against TMEM119, CD68KiM1P, and CCR2. We could document the lowest density of TMEM119-positive cells in MOR deaths with highly significant differences to the control densities in all three regions investigated. In ETH and METH deaths, the expression of TMEM119 was comparable to cell densities in controls. The results indicate that the immunoreaction in brain tissue is different in these groups depending on the drug type used for abuse.
- Published
- 2021
65. Quality of Service Differentiation in WiMAX Networks
- Author
-
Susana Sargento, J. Monteiro, Francisco Fontes, Thomas Michael Bohnert, and Pedro Neves
- Subjects
Standardization ,business.industry ,Computer science ,Quality of service ,Interoperability ,ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS ,Certification ,WiMAX ,Documentation ,Wireless broadband ,Software deployment ,business ,Telecommunications ,Computer network - Abstract
Broadband Wireless Access (BWA) based on the IEEE 802.16 standards [IEEE 802.16, 2004] [IEEE 802.16, 2005], also known as Worldwide Interoperability for Microwave Access (WiMAX), is gaining momentum as more and more field trials are transformed in commercial roll-outs. Very much likely, this is certainly a merit of the combined effort of the IEEE 802.16 standardization community, the WiMAX Forum [WiMAX Forum a, 2008] [WiMAX Forum b, 2008] and the research community. As of today, standards have matured, the WiMAX Forum has setup its certification program in order to foster interoperability, and the research community went through technological details up to an extent, such that many operators consider the risks associated with commercial deployment predictable. Yet, WiMAX is still not deemed as globally established. This technology is very new and a competing system, namely Long-Term Evolution (LTE) [3GPP, 2009], is progressing in a similar pace. Which technology will finally make it through in the market, or will we have even several co-existing ones, is, among others, influenced by the research community. The better a technology is understood, the more likely it will be adopted by manufacturers, vendors and operators. Key to scientific consideration is the availability of reliable simulation tools. This applies equally to WiMAX and any other technology and is embodied by an emerging business of commercial simulators like OPNET [OPNET] and Qualcomm [Qualcomm]. Unfortunately, these simulators are fairly expensive and/or their use is strictly licensed. As monetary considerations and openness frequently prevail, in particular in academia, NS-2 [NS-2], as open-source alternative, still retains its position. Naturally, open-source software rarely approaches commercial standards, especially in terms of completeness and documentation. This is, for example, the case for the public available WiMAX module for NS-2. This module supports several WiMAX features but lacks a very essential one, Quality of Service (QoS) support. The lack of this feature 34
- Published
- 2021
66. Post-mortem cerebrospinal fluid diagnostics: cytology and immunocytochemistry method suitable for routine use to interpret pathological processes in the central nervous system
- Author
-
Camelia-Maria Monoranu, Benjamin Ondruschka, Michael Bohnert, Simone Bohnert, and Michael K. Schuhmann
- Subjects
Pathology ,medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Immunocytochemistry ,Central nervous system ,Cerebrospinal Fluid Proteins ,Immunohistochemistry ,Pathology and Forensic Medicine ,Cerebrospinal fluid ,medicine.anatomical_structure ,Postmortem Changes ,Cytology ,Biopsy ,Humans ,Medicine ,Autopsy ,business ,Forensic Pathology ,Pathological ,Biomarkers ,Cerebrospinal Fluid - Abstract
Due to its protected anatomical location, cerebrospinal fluid (CSF) is a very stable fluid which undergoes comparatively little change in the early post-mortem phase. While many immunohistochemical markers already established for clinical diagnostic issues in tissue samples obtained by biopsy could meanwhile be translated also to post-mortem tissue, no systematic immunocytochemical investigations have generally been conducted on post-mortem body fluids and for CSF specifically, have not been established at all. CSF as the fluid directly surrounding the brain should also be examined to allow a more detailed characterization of processes in the central nervous system. Comparing traumatized tissue and CSF can complete forensic assessment and complement neuropathological evaluation.
- Published
- 2019
67. Hypoxia-Induced MicroRNA-212/132 Alter Blood-Brain Barrier Integrity Through Inhibition of Tight Junction-Associated Proteins in Human and Mouse Brain Microvascular Endothelial Cells
- Author
-
Serge C. Thal, Thomas Thum, Carola Förster, Anna König, Mareike Lang, Michael Bohnert, Norbert Roewer, Kinga G Blecharz-Lang, Johannes Woitzik, Jan Fiedler, Malgorzata Burek, and Sabrina Oerter
- Subjects
0301 basic medicine ,Central nervous system ,In situ hybridization ,Oxygen-glucose deprivation ,Blood–brain barrier ,Tight Junctions ,Mice ,03 medical and health sciences ,Traumatic brain injury ,0302 clinical medicine ,Brain Injuries, Traumatic ,microRNA ,medicine ,Animals ,Humans ,Hypoxia ,Cells, Cultured ,Tight Junction Proteins ,Tight junction ,business.industry ,General Neuroscience ,Endothelial Cells ,MicroRNA-212/132 ,Human brain ,Microvesicles ,Cell biology ,Stroke ,MicroRNAs ,030104 developmental biology ,medicine.anatomical_structure ,Blood-Brain Barrier ,Zonula Occludens-1 Protein ,cardiovascular system ,Original Article ,Neurology (clinical) ,Cardiology and Cardiovascular Medicine ,business ,030217 neurology & neurosurgery ,Homeostasis - Abstract
Blood-brain barrier (BBB) integrity is one of the important elements of central nervous system (CNS) homeostasis. MicroRNAs (miRs) have been demonstrated to play a role in many CNS disorders such as stroke and traumatic brain injury. MiR-212/132 are highly expressed in the CNS but their role at the BBB has not been characterized yet. Thus, we analyzed the expression of miR-212/132 in hypoxic mouse and human brain microvascular endothelial cells (BMEC) as well as in posttraumatic mouse and human brain tissue and serum exosomes. MiR-212/132 expression was detected in brain capillaries by in situ hybridization and was increased up to ten times in hypoxic BMEC. Over-expression of pre-miR-212/132 in BMEC decreased barrier properties and reduced migration of BMEC in the wound healing assay. We identified and validated tight junction proteins claudin-1 (Cldn1), junctional adhesion molecule 3 (Jam3), and tight junction-associated protein 1 (Tjap1) as potential miR-212/132 targets. Over-expression of miRs led to a decrease in mRNA and protein expression of Cldn1, Jam3, and Tjap1, which could be rescued by a respective anti-miR. In conclusion, our study identifies miR-212/132 as critical players at the hypoxic BBB. In addition, we propose three new direct miR-212/132 targets to be involved in miR-212/132-mediated effects on BBB properties. Electronic supplementary material The online version of this article (10.1007/s12975-018-0683-2) contains supplementary material, which is available to authorized users.
- Published
- 2019
68. Dokumentation von Verletzungen
- Author
-
Michael Bohnert, Sieglinde Ahne, and Thomas Ahne
- Abstract
Die medizinische Versorgung verletzter Personen hat Vorrang vor der forensischen Befunddokumentation. Das eine schliest das andere jedoch nicht aus und die Dokumentation von Verletzungen kann durchaus in die Wundversorgung integriert werden. Wesentlich ist vor allem, dass man sich daruber im Klaren ist, dass nicht nur der klinische, sondern auch der forensische Blick auf eine verletzte Person wichtig ist.
- Published
- 2021
69. Verknüpfungen zwischen Notfall- und Rechtsmedizin
- Author
-
Michael Bohnert, Sieglinde Ahne, and Thomas Ahne
- Abstract
Wahrend der praktischen Arbeit im Rettungsdienst auf der einen Seite und der arztlichen Tatigkeit in der Rechtsmedizin auf der anderen Seite wird immer wieder deutlich, dass es in der Notfallmedizin weit verbreitet ist, nichts oder nur wenig uber die Arbeit der Rechtsmedizin zu wissen. Jeder kennt zwar die einschlagigen Fernsehserien und in nicht wenigen Kinofilmen schubst der Rechtsmediziner den Notarzt an der Einsatzstelle quasi zur Seite – mit dem wahren Leben hat dies aber wohl nichts zu tun. Es gibt in der Realitat allerdings erstaunlich viele Beruhrungspunkte der beiden Fachgebiete, von denen man im Rettungsdienst nur selten etwas mitbekommt, da in der Praxis zumeist die einzelnen Bereiche nacheinander zum Einsatz kommen, ohne sich personlich zu begegnen.
- Published
- 2021
70. Alkohol und Drogen
- Author
-
Michael Bohnert, Thomas Ahne, and Sieglinde Ahne
- Abstract
Sie werden als Notarzt zu einem Verkehrsunfall gerufen, bei dem ein Fusganger von einem Pkw angefahren wurde. Der Fusganger hat neben Hamatomen und Schurfungen eine Fraktur des Unterschenkels erlitten. Nachdem Sie sich um ihn gekummert haben, werden Sie von der Polizei gebeten, sich auch noch den Pkw-Fahrer anzuschauen.
- Published
- 2021
71. Elastic Provisioning of Stateful Telco Services in Mobile Cloud Networking
- Author
-
Antonio Corradi, Thomas Michael Bohnert, Paolo Bellavista, Andrew Edmonds, Luca Foschini, Alessandro Zanni, Bellavista P., Corradi A., Edmonds A., Foschini L., Zanni A., and Bohnert T.M.
- Subjects
Service (systems architecture) ,Information Systems and Management ,Cloud management ,Computer Networks and Communications ,Computer science ,Context (language use) ,Cloud computing ,02 engineering and technology ,mobile cloud networking ,Stateful firewall ,service provisioning ,0202 electrical engineering, electronic engineering, information engineering ,service composition ,resource management ,Orchestration (computing) ,Virtual network ,020203 distributed computing ,business.industry ,020206 networking & telecommunications ,Provisioning ,service state migration ,Computer Science Applications ,Hardware and Architecture ,virtual machine and containers ,network function virtualization ,business ,Computer network - Abstract
Several relevant research and innovation activities have recently investigated the technical and economic advantages of cloud computing for the provisioning of telco service infrastructures, in particular towards all-IP next generation 5G networks. In fact, the evolution of telco service infrastructures traditionally requires a significant upfront investment (and a long adoption process). Conversely, cloud exploitation significantly lowers investment risks by potentially providing elasticity in service provisioning via flexible Virtual Network Functions (VNFs) on top of a Network Functions Virtualization (NFV) Infrastructure. In this context, the paper presents novel solutions that we have designed, implemented, and evaluated within the EU FP7 Mobile Cloud Networking project (MCN). Their aim is to achieve cost-effective elastic provisioning of telco services over heterogeneous and federated cloud providers, with the specific focus of supporting the extreme quality levels that are demanded by traditional, non-virtualized, and dedicated telco infrastructures. In particular, we concentrate on how to effectively and efficiently automate service state migration for coarse-grained telco service (cloudified) components by leveraging industry-mature orchestration technologies and cloud management frameworks. While our proposed state migration model and procedure are general, its implementation is experimented for MCN's Rating, Charging, and Billing as a Service (RCBaaS). This MCN functionality has been chosen by purpose due to its challenging reliability and uptime requirements. The reported experimental and simulation results show the technical feasibility of the proposed solution under different and realistic load conditions for next-generation and cloudified 5G services.
- Published
- 2021
72. Todesfälle
- Author
-
Sieglinde Ahne, Thomas Ahne, and Michael Bohnert
- Published
- 2021
73. Verkehrsunfälle
- Author
-
Sieglinde Ahne, Thomas Ahne, and Michael Bohnert
- Published
- 2021
74. Forensische Traumatologie
- Author
-
Sieglinde Ahne, Thomas Ahne, and Michael Bohnert
- Published
- 2021
75. Verhalten am Tatort
- Author
-
Michael Bohnert, Sieglinde Ahne, and Thomas Ahne
- Abstract
An einem heisen Augustnachmittag werden Sie unter dem Stichwort „Bewusstlose Person“ in eine burgerliche Wohngegend gerufen. An der genannten Adresse angekommen, werden Sie durch einen Nachbarn empfangen, der angibt, seine allein lebende 84-jahrige Nachbarin leblos in der Wohnung aufgefunden zu haben. Er habe sich mittels des bei ihm fur Notfalle deponierten Schlussels zur Wohnung Zutritt verschafft, nachdem die Nachbarin bei horbarer Musik aus der Wohnung auf Klingeln nicht offnete.
- Published
- 2021
76. Metabolomics in postmortem cerebrospinal fluid diagnostics: a state-of-the-art method to interpret central nervous system–related pathological processes
- Author
-
Michael Bohnert, Christoph Reinert, Stefanie Trella, Simone Bohnert, Benjamin Ondruschka, and Werner Schmitz
- Subjects
Adult ,Male ,Traumatic brain injury ,Metabolite ,Central nervous system ,Method Paper ,Context (language use) ,CSF ,Bioinformatics ,Mass Spectrometry ,Pathology and Forensic Medicine ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Cerebrospinal fluid ,Metabolomics ,Cause of Death ,ddc:570 ,medicine ,Humans ,030216 legal & forensic medicine ,ddc:610 ,Pathological ,Aged ,Aged, 80 and over ,Forensic neuropathology ,business.industry ,Biomarker ,Forensic Medicine ,Middle Aged ,medicine.disease ,Lipid Metabolism ,Forensic neurotraumatology ,medicine.anatomical_structure ,chemistry ,Postmortem Changes ,Biomarker (medicine) ,Female ,business ,030217 neurology & neurosurgery ,Chromatography, Liquid - Abstract
In the last few years, quantitative analysis of metabolites in body fluids using LC/MS has become an established method in laboratory medicine and toxicology. By preparing metabolite profiles in biological specimens, we are able to understand pathophysiological mechanisms at the biochemical and thus the functional level. An innovative investigative method, which has not yet been used widely in the forensic context, is to use the clinical application of metabolomics. In a metabolomic analysis of 41 samples of postmortem cerebrospinal fluid (CSF) samples divided into cohorts of four different causes of death, namely, cardiovascular fatalities, isoIated torso trauma, traumatic brain injury, and multi-organ failure, we were able to identify relevant differences in the metabolite profile between these individual groups. According to this preliminary assessment, we assume that information on biochemical processes is not gained by differences in the concentration of individual metabolites in CSF, but by a combination of differently distributed metabolites forming the perspective of a new generation of biomarkers for diagnosing (fatal) TBI and associated neuropathological changes in the CNS using CSF samples.
- Published
- 2021
77. Misshandlungsdelikte
- Author
-
Sieglinde Ahne, Thomas Ahne, and Michael Bohnert
- Published
- 2021
78. Rechtsmedizinische Aspekte in der Notfallmedizin
- Author
-
Michael Bohnert, Thomas Ahne, and Sieglinde Ahne
- Published
- 2021
79. Grundwissen Rechtsmedizin : Medizinische Kriminalistik und forensische Wissenschaften mit eLearning-Kurs
- Author
-
Michael Bohnert and Michael Bohnert
- Abstract
Michael Bohnert führt in diesem Buch leicht verständlich in die Rechtsmedizin ein. Er erklärt die verschiedenen Untersuchungsmethoden sowie Wissenswertes zur Thanatologie und medizinischen Kriminalistik. Ausführlich beschreibt er die unterschiedlichen Verletzungsarten und ihre Merkmale. Ein Kapitel zu den forensischen Wissenschaften rundet diese Einführung ab. Auch für Nichtmediziner geeignet! utb+: Begleitend zum Buch steht den Leser:innen ein eLearning-Kurs zur Verfügung. Dieser Kurs hilft bei der Vertiefung des Wissens.
- Published
- 2023
80. Forensic Aspects in Emergency Medicine : For Ambulance - and Emergency Physician
- Author
-
Sieglinde Ahne, Thomas Ahne, Michael Bohnert, Sieglinde Ahne, Thomas Ahne, and Michael Bohnert
- Subjects
- Medical jurisprudence, Emergency medicine
- Abstract
This pocketbook provides emergency service personnel and emergency physicians with practical forensic knowledge for the initial care of emergency patients based on numerous case examples. Topics include necropsy, crime scene behavior, blunt and sharp force, strangulation, gunshot wounds, homicide, and suicide. Specifics on sudden infant death syndrome, child abuse, and sexual offenses are also included. The 2nd edition is completely revised, updated and expanded to include the topic of child protection.
- Published
- 2023
81. The Internet of Vehicles or the Second Generation of Telematic Services.
- Author
-
Markus Miche and Thomas Michael Bohnert
- Published
- 2009
82. Broadband Wireless Access.
- Author
-
Yan Zhang 0002, Thomas Michael Bohnert, Dmitri Moltchanov, Dirk Staehle, Gábor Fodor 0001, and Edward W. Knightly
- Published
- 2009
- Full Text
- View/download PDF
83. OFDMA Architectures, Protocols, and Applications.
- Author
-
Victor C. M. Leung, Alister G. Burr, Lingyang Song, Yan Zhang 0002, and Thomas Michael Bohnert
- Published
- 2009
- Full Text
- View/download PDF
84. Deadly injuries through recoilless anti-tank weapons while military shooting practice — two case studies from Germany and Switzerland
- Author
-
Michael Bohnert, Katharina Jellinghaus, Charlotte Scherer, Beat P. Kneubuehl, Petra Kathrin Urban, and Edouard Stauffer
- Subjects
Male ,History ,Forensic Ballistics ,Ballistics ,Case Report ,Rocket motor ,Pathology and Forensic Medicine ,Young Adult ,Blunt ,Fatal Outcome ,Aeronautics ,Military shooting ,Germany ,Humans ,ddc:610 ,Forensic Pathology ,Accidental Injuries ,Multiple Trauma ,Military Personnel ,High pressure ,Davis gun ,Weapons ,Anti-tank rocket ,Wound - morphology ,Anti-tank weapon ,Switzerland - Abstract
In this casuistry, two accidents from Germany and Switzerland are presented that happened during the shot of recoilless anti-tank weapons. In both cases, the injuries led to the death of two soldiers: A 22-year-old soldier in Germany was struck by the counter mass of a so-called Davis gun which had been fired by a comrade during a firing exercise; he died from his severe injuries, especially in the abdominal part of the body. As a peculiarity of the wound morphology, it was found to be a thick-layered, metallic, gray material in the wound cavity, which corresponded to the material of the counter mass that was ejected opposite to the shooting direction. The other case took place in Switzerland, where a 24-year-old soldier was seriously injured during an exercise with portable anti-tank rockets. At the time the shot was fired, he stood behind the launcher and was hit by the propulsion jet of the rocket motor. He died as well from his severe injuries, which were located at the chest done by the gas jet and by the very high pressure. In both cases, two different causes of death were present: massive blunt violence in the first case versus a jet of hot gases of very high speed and temperature in the second case.
- Published
- 2020
85. A comment on simulating LRD traffic with pareto ON/OFF sources.
- Author
-
Thomas Michael Bohnert and Edmundo Monteiro
- Published
- 2005
- Full Text
- View/download PDF
86. Electronic Laboratory Notebook Assisting Reflectance Spectrometry in Legal Medicine
- Author
-
Lioudmila Belenkaia, Michael Bohnert, and Andreas W. Liehr
- Published
- 2006
87. Power Management in Mobile WiMAX
- Author
-
Paschos, Georgios, primary, Papapanagiotou, Ioannis, additional, and Michael Bohnert, Thomas, additional
- Published
- 2009
- Full Text
- View/download PDF
88. Rechtsmedizinische Aspekte in der Notfallmedizin : Für den Rettungsdienst- und Notarzteinsatz
- Author
-
Sieglinde Ahne, Thomas Ahne, Michael Bohnert, Sieglinde Ahne, Thomas Ahne, and Michael Bohnert
- Subjects
- Emergency medicine, Emergency medical services, Medical jurisprudence
- Abstract
Dieses Taschenbuch liefert Mitarbeitern im Rettungsdienst und Notärzten anhand von zahlreichen Fallbeispielen rechtsmedizinisches Praxiswissen für die Erstversorgung von Notfallpatienten. Themen sind u.a. Leichenschau, Verhalten am Tatort, stumpfe und scharfe Gewalt, Strangulation, Schussverletzungen, Tötungsdelikte und Suizid. Auch Besonderheiten bei plötzlichem Kindstod, Kindesmisshandlung und Sexualdelikten werden berücksichtigt. Die 2. Auflage erscheint komplett überarbeitet, aktualisiert und um das Thema Kinderschutz erweitert.
- Published
- 2021
89. Grundwissen Rechtsmedizin : Medizinische Kriminalistik und forensische Wissenschaften
- Author
-
Michael Bohnert and Michael Bohnert
- Abstract
Michael Bohnert führt in diesem Buch leicht verständlich in die Rechtsmedizin ein. Er erklärt die verschiedenen Untersuchungsmethoden sowie Wissenswertes zur Thanatologie und medizinischen Kriminalistik. Ausführlich beschreibt er die unterschiedlichen Verletzungsarten und ihre Merkmale. Ein Kapitel zu den forensischen Wissenschaften rundet diese Einführung ab. Auch für Nichtmediziner geeignet!
- Published
- 2021
90. Visualizing old biological traces on different materials without using chemicals
- Author
-
V. Sterzik, P. Hinderberger, Michael Bohnert, and S. Panzer
- Subjects
Male ,Time Factors ,Light ,genetic structures ,Surface Properties ,Computer science ,Forensic photography ,Urine ,01 natural sciences ,Fluorescence ,Clothing ,Pathology and Forensic Medicine ,03 medical and health sciences ,0302 clinical medicine ,Biological stain ,Light source ,Semen ,Image Processing, Computer-Assisted ,Photography ,Forensic engineering ,Humans ,030216 legal & forensic medicine ,Saliva ,Sweat ,Textiles ,010401 analytical chemistry ,Forensic Medicine ,Data science ,0104 chemical sciences ,Blood - Abstract
During the investigative process that typically follows a criminal act, it may prove necessary to work with and analyze evidence that is not recent but old. This could become necessary, for example, when a crime is discovered some time after it was committed or when a cold case is reopened. Due to this need, the present study focused on the detection and visualization of 2-year-old biological traces. To do so, an alternative light source and different filters were used. The optical behavior of 2-year-old samples of blood, semen, urine, saliva, and sweat located on 19 different materials was documented, analyzed, and compared with the optical behavior of the same samples when they were recent [1].
- Published
- 2017
91. LMD proteomics provides evidence for hippocampus field-specific motor protein abundance changes with relevance to Alzheimer's disease
- Author
-
Christina Loosse, Christian Braun, Michael Bohnert, Thorsten Müller, Svenja Seger, Helmut E. Meyer, Matthias Graw, Christoph Schmitz, Edeltraut Hoffmann-Posorske, Thomas Mastalski, Katharina Kolbe, Helmut Heinsen, Thomas Arzberger, Andreas Schrötter, Andrea Oberhaus, Fouzi El Magraoui, and Jürgen Deckert
- Subjects
Male ,Proteomics ,0301 basic medicine ,Biophysics ,Hippocampus ,Nerve Tissue Proteins ,Biology ,Hippocampal formation ,Bioinformatics ,Biochemistry ,Analytical Chemistry ,03 medical and health sciences ,0302 clinical medicine ,Alzheimer Disease ,Tandem Mass Spectrometry ,medicine ,Humans ,Molecular Biology ,Aged ,Laser capture microdissection ,Aged, 80 and over ,Cerebrum ,musculoskeletal, neural, and ocular physiology ,Middle Aged ,medicine.disease ,Immunohistochemistry ,030104 developmental biology ,medicine.anatomical_structure ,nervous system ,Proteome ,Female ,Pyramidal cell ,Alzheimer's disease ,Neuroscience ,030217 neurology & neurosurgery ,Chromatography, Liquid - Abstract
Background Human hippocampal area Cornu Ammonis (CA) 1 is one of the first fields in the human telencephalon showing Alzheimer disease (AD)-specific neuropathological changes. In contrast, CA2 and CA3 are far later affected pointing to functional differences, which may be accompanied by differences in proteome endowment and changes. Methods Human pyramidal cell layers of hippocampal areas CA1, CA2, and CA3 from neurologically unaffected individuals were excised using laser microdissection. The proteome of each individual sample was analyzed and differentially abundant proteins were validated by immuno-histochemistry. Results Comparison of CA1 to CA2 revealed 223, CA1 to CA3 197 proteins with differential abundance, among them we found motor proteins MYO5A and DYNC1H1. Extension of the study to human hippocampus slices from AD patients revealed extensive depletion of these proteins in CA1 area compared to unaffected controls. Conclusion High abundance of motor proteins in pyramidal cell layers CA1 compared to CA2 and CA3 points the specific vulnerability of this hippocampal area to transport-associated changes based on microtubule dysfunction and destabilization in AD.
- Published
- 2017
92. Accident or crime? About the meaning of face injuries inflicted by blunt force
- Author
-
Michael Bohnert, David Duckwitz, and Vera Sterzik
- Subjects
Tooth injury ,Engineering ,criminal violence ,Criminology ,01 natural sciences ,Biochemistry, Genetics and Molecular Biology (miscellaneous) ,Pathology and Forensic Medicine ,Analytical Chemistry ,03 medical and health sciences ,Accident (fallacy) ,0302 clinical medicine ,Blunt ,blunt force ,Forensic engineering ,ear injury ,030216 legal & forensic medicine ,Meaning (existential) ,Physical and Theoretical Chemistry ,business.industry ,010401 analytical chemistry ,head injuries ,Articles ,accident ,fatalities ,0104 chemical sciences ,facial injuries ,Psychiatry and Mental health ,Anthropology ,retroauricular injury ,Forensic science ,business ,Ear Injury - Abstract
Injuries caused by blunt force are seen frequently in daily forensic casework. Sometimes, especially when there is less information about the surrounding circumstances, it might become difficult to figure out the cause and background of injuries: accident, criminal violence or self-infliction? In the study presented, face injuries caused by blunt force in 694 cases were analyzed comparing the injury patterns in accidents to those in crimes. It turned out injuries of the ear and retroauricular region clearly indicate a crime. Also, soft tissue injuries of nose, upper jaw, and lower jaw point towards a criminal violence, whereas tooth injuries occur with a similar frequency in both crimes and accidents.
- Published
- 2016
93. Cloud Robotics with ROS
- Author
-
Thomas Michael Bohnert and Giovanni Toffetti
- Subjects
Computer science ,business.industry ,Platform as a service ,Distributed computing ,Mobile robot ,Cloud computing ,Bridge (nautical) ,Cloud robotics ,Software deployment ,004: Informatik ,business - Abstract
Cloud computing can greatly enhance robotic applications, not only by complementing robotic resources (e.g., CPU/GPU, memory, storage), but also by providing global-scale highly available services, distributed application management solutions, proven development and deployment practices. However, several challenges have to be addressed in order to bridge the gap between cloud and robotic development, including ROS and cloud design assumptions, networking, and mobile robots. In this chapter we present ECRP, a Platform as a Service solution for building ROS-based cloud robotics applications.
- Published
- 2019
94. Monitoring resilience in a rook-managed containerized cloud storage system
- Author
-
Stefan Benz, Thomas Michael Bohnert, Leonardo Militano, and Louis Baumann
- Subjects
Resilience ,Monitoring ,Cloud-native ,business.industry ,Computer science ,Distributed computing ,020206 networking & telecommunications ,020207 software engineering ,Context (language use) ,Cloud computing ,02 engineering and technology ,Enterprise data management ,Object storage ,Ceph ,Component-based software engineering ,Computer data storage ,0202 electrical engineering, electronic engineering, information engineering ,Distributed Cloud Storage ,004: Informatik ,Rook ,Kubernetes ,business ,Resilience (network) ,Cloud storage - Abstract
Distributed cloud storage solutions are currently gaining high momentum in industry and academia. The enterprise data volume growth and the recent tendency to move as much as possible data to the cloud is strongly stimulating the storage market growth. In this context, and as a main requirement for cloud native applications, it is of utmost importance to guarantee resilience of the deployed applications and the infrastructure. Indeed, with failures frequently occurring, a storage system should quickly recover to guarantee service availability. In this paper, we focus on containerized cloud storage, proposing a resilience monitoring solution for the recently developed Rook storage operator. While, Rook brings storage systems into a cloud-native container platform, in this paper we design an additional module to monitor and evaluate the resilience of the Rook-based system. Our proposed module is validated in a production environment, with software components generating a constant load and a controlled removal of system elements to evaluate the self-healing capability of the storage system. Failure recovery time revealed to be 41 and 142 seconds on average for a 32GB and a 215GB object storage device respectively.
- Published
- 2019
- Full Text
- View/download PDF
95. Wildfire propagation simulation tool using cellular automata and GIS
- Author
-
Joaquín Salvachúa, Washington Velasquez, Thomas Michael Bohnert, and Andres Munoz-Arcentales
- Subjects
Informática ,Telecomunicaciones ,Computer science ,Distributed computing ,04 agricultural and veterinary sciences ,Vegetation ,15. Life on land ,010501 environmental sciences ,01 natural sciences ,Cellular automaton ,Core (graph theory) ,040103 agronomy & agriculture ,Information system ,0401 agriculture, forestry, and fisheries ,0105 earth and related environmental sciences - Abstract
This paper states the research done in building a Wildfire Propagation Simulation tool able to present graphically, how the fire will be propagated in case of a wildfire. The core of this tool was developed using Cellular Automata (CA) relayed on mathematical foundations for modeling the propagation and the transition rules of the CA. Also, the mathematical model was combined with a geographical information system provided by Google Maps API, allowing to conduct a simulation that considers the kind and density of vegetation in a specific zone of interest. Finally, we define and perform a full simulation providing information for managing and predicting wildfires and, the future works derived from this research.
- Published
- 2019
96. Unique thermal destruction of the body following suicidal burning
- Author
-
Petr Hejna, Martin Janík, and Michael Bohnert
- Subjects
Aged, 80 and over ,Ethanol ,010401 analytical chemistry ,Postmortem period ,General Medicine ,Combustion ,01 natural sciences ,Fires ,0104 chemical sciences ,Pathology and Forensic Medicine ,03 medical and health sciences ,Suicide ,0302 clinical medicine ,Mining engineering ,Solvents ,Environmental science ,Humans ,Female ,030216 legal & forensic medicine ,Firelighter ,Burns ,Spontaneous combustion ,Self immolation - Abstract
The concept of spontaneous combustion has huge appeal as an historical fiction but it has no scientific background. However, in some deaths involving fire, a body can burn away virtually completely with minimal thermal destruction to the neighboring environment. We report an extraordinary case of the self-immolation of an elderly woman who set herself on fire with suicidal intentions. The unusual appearance and location of the body closely resembled the phenomenon of so-called spontaneous human combustion because the upper parts of the body were almost totally destroyed by fire, while the legs and surrounding structures remained almost untouched by flames. The results of all investigations proved that the woman set fire to her body using a box of matches and accelerants (concentrated ethanol and a solid firelighter). Near-total combustion of her body subsequently occurred during the postmortem period. The development of alleged spontaneous human combustion requires the following: ignition (external heat source), fuel (molten human fat), a wick (e.g. charred and porous clothing, bedding, or ground), time, and an optimal microclimate for gradual burning.
- Published
- 2018
97. Resource allocation for relay-assisted OFDMA systems using inter-cell interference coordination.
- Author
-
Hongtao Zhang 0001, Xiaoxiang Wang, Yang Liu 0024, L. Z. Zheng, and Thomas Michael Bohnert
- Published
- 2012
- Full Text
- View/download PDF
98. Adaptive QoS provision for IEEE 802.16e BWA networks based on cross-layer design.
- Author
-
Hongtao Zhang 0001, Xiaoxiang Wang, Z. B. Qin, Geng-Sheng Kuo, and Thomas Michael Bohnert
- Published
- 2011
- Full Text
- View/download PDF
99. Secular change of sexually dimorphic cranial variables in Euro-Americans and Germans
- Author
-
Katharina Jellinghaus, Richard L. Jantz, Michael Bohnert, and Laura Manthey
- Subjects
Male ,Cranial morphology ,Cephalometry ,01 natural sciences ,Pathology and Forensic Medicine ,German ,03 medical and health sciences ,0302 clinical medicine ,Image Processing, Computer-Assisted ,Humans ,030216 legal & forensic medicine ,White (horse) ,Crania ,biology ,Skull ,010401 analytical chemistry ,Sex Determination by Skeleton ,biology.organism_classification ,United States ,language.human_language ,0104 chemical sciences ,Europe ,Sexual dimorphism ,Geography ,Sex estimation ,language ,Female ,Demography - Abstract
Crania are a reliable source for sex estimation in Euro-Americans, Europeans, and most other populations. Besides morphological assessments, the application of Fordisc® has become a useful tool within the last two decades, creating discriminant functions from morphometric data. Unfortunately, until now, white populations are mostly represented by measurements of American individuals. Therefore, classification rates are lower for European skulls than for Euro-Americans. The aim of this study was to show differences in sexual dimorphism between German and Euro-American crania. Furthermore, their secular change from the nineteenth to the twentieth century has been investigated. Analyses have been performed on glabella subtense (GLS), mastoid height (MDH), and bizygomatic breadth (ZYB). Fordisc® 3.1 was used to study sexual dimorphism and secular change, whereas SAS® was used to perform a two-level ANOVA to test for variation in sex dimorphism. Euro-Americans show greater dimorphism than Germans in all three measurements tested. This larger difference is even increasing from the late nineteenth through the late twentieth century in terms of GLS and MDH, while it stays almost the same in the present Europeans. These results explain the unsatisfying classification rates of German and other European crania on Fordisc®. Data collection for European Fordisc® samples is in progress and should improve the current situation.
- Published
- 2016
100. Bullet fragmentation preceding a contour shot: case study and experimental simulation
- Author
-
Fabiano Riva, Michael Bohnert, Beat P. Kneubuehl, V. Sterzik, and Matthieu Glardon
- Subjects
Male ,Forensic Ballistics ,Ballistics ,Poison control ,Fragmentation (weaponry) ,Models, Biological ,01 natural sciences ,Pathology and Forensic Medicine ,Left parietal lobe ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Cranial cavity ,Forensic engineering ,Humans ,030216 legal & forensic medicine ,010401 analytical chemistry ,Temporal Bone ,Anatomy ,Middle Aged ,medicine.disease ,0104 chemical sciences ,Suicide ,Skull ,medicine.anatomical_structure ,Shot (pellet) ,Wounds, Gunshot ,Gunshot wound ,Geology - Abstract
In medico-legal literature, only a small number of publications deal with lethal injuries caused by shots with modified guns. This might lead to the conclusion that such cases are extremely rare. However, there are cases again and yet again. During the investigation process, the modified gun is of particular importance since it can show an unusual ballistic behaviour. The present paper reports on a suicide of a 60-year-old man, committed with a modified revolver and a lead bullet. The man had a single gunshot wound with entrance at the right temporal bone. Autopsy revealed that the bullet had fragmented into two major parts. The smaller one stood outside the cranial cavity and pushed its way alongside between the cranial bone and scalp to its end position in the left temporal area. The bigger part entered the cranial cavity and ended in the left parietal lobe. In shots on ballistic soap and on a head-model, the ballistics of the weapon and lead bullet were characterized. The angle necessary for bullet fragmentation was determined by shots on ballistic soap and turned out to be 55°-60° at a velocity of around 200 m/s. This knowledge was transferred to contact shots on a head-model consisting of a layered polyurethane sphere filled with 10 % ballistic gelatine and covered with a skin-like cap almost all around. The resulting injury pattern corresponded to the one of the suicide person. The bigger bullet part entered the skull while the smaller part pushed its way alongside between skin and skull causing an outer contour shot. Furthermore, the revolver was documented firing off two bullets by one trigger pull-a phenomenon of importance for forensic casework the authors have not found reported in forensic literature.
- Published
- 2016
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.