Search results for "Forensic"
showing 10 items of 1701 documents
Modifizierte enzymatische Bestimmung von Acetaldehyd im Blutserum (unter Verwendung von ADH und DPN-H-Boehringer)
1957
Untersuchungen zu möglichen Mechanismen einer PCR-Hemmung in Haarextrakten durch Melanine
2001
Bei Haarspuren wird eine mogliche PCR-Inhibition durch das Haarpigment diskutiert. Es wurde untersucht, ob synthetisches Eumelanin und Pheomelanin die Amplifikation mitochondrialer DNA-Sequenzen (HV-2) hemmen. Nach der Bestimmung der Hemmkonzentrationen (Eumelanin: 0,25 μg; Pheomelanin: 2,5 μg) wurde die Mg2+-Konzentration im 50-μl-PCR-Ansatz sukzessiv erhoht. Die Ergebnisse zeigten, dass die Melanine die Mg2+-Ionen in einem Bereich von 1,5–6 mmol puffern, aber durch Erhohung der Mg2+-Konzentration die Inhibition revertierbar und korrekte Amplifikationen erreichbar waren. Spektrophotometrische Gesamtmelaninbestimmungen kaukasoider Kopfhaarproben sowie Gewichtsbestimmungen an 1 cm langen Haa…
Untersuchungen an isoliertem, unver�ndertem Lipofuscin aus Herzmuskulatur
1955
1. Nach einer kritischen Betrachtung der heutigen Kenntnisse uber das Lipofuscin und einer Abwagung der einzelnen Untersuchungs-methoden wird die besondere Bedeutung chemischer Untersuchungen an isoliertem Lipofuscin hervorgehoben. 2. Es wird eine Methode zur Isolierung reinen, unveranderten Lipofuscins aus Herzmuskulatur angegeben, die bestimmte physikalische Eigenschaften von Lipofuscin fur die Isolierung ausnutzt. Chemische Methoden zur Isolierung erscheinen wenig geeignet, da durch sie das Pigment denaturiert wird. 3. Bei mikroskopischen Untersuchungen zeigt das isolierte Lipofuscin das gleiche optische und farberische Verhalten wie innerhalb der Zelle. Es kann daher sicher identifizier…
Detection and characterization of emerging psychoactive substances by ion mobility spectrometry
2014
Rapid detection and identification of novel psychoactive substances (NPS) continues to present significant analytical challenges to forensic and analytical chemists. Ion mobility spectrometry (IMS) has been traditionally considered as the analytical technique of choice to detect illicit drugs in security points in airports, borderlines and customs. Databases of the reduced mobility (K0 ) values of illicit drugs are available in the scientific literature and they should be completed with data of emerging designer drugs. In this paper, we have evaluated the effect of different measurement conditions and determined the K0 values of an important number of NPS including different families; such …
Chemokine Expression Is Involved in the Vascular Neogenesis of Ewing Sarcoma: A Preliminary Analysis of the Early Stages of Angiogenesis in a Xenogra…
2018
Background Ewing sarcoma (EWS) is the second most common bone cancer in pediatric patients. Angiogenesis is a major factor for tumor growth and metastasis. Our aim was to carry out a histological, immunohistochemical, and molecular characterization of the neovascularization established between xenotransplanted tumors and the host during the initial phases of growth in nude mice in three angiogenesis experiments (ES2, ES3, and ES4). Methods The original human EWS were implanted subcutaneously on the backs of three nude mice. Tumor pieces 3 mm–4 mm in size from early passages of Nu432, Nu495, and Nu471 were also implanted subcutaneously on the backs of three sets (ES2, ES3, and ES4) of athymi…
Molecular evolution and complete genome sequences in forensic analysis: Neisseria gonorrhoeae in a transmission case
2019
Molecular epidemiology and phylogenetic analyses are frequently used in the investigation of viral transmission cases in forensic contexts. Here, we present the methods and results of the analysis of a bacterial transmission in an alleged child abuse case using complete genome sequences obtained by high-throughput sequencing (HTS) methods.
Child-rearing and child abuse antecedents of criminality
1999
A number of studies reviewed here show that those who are exposed to negative child-rearing practices varying from punitive and lax parenting to severe punishment and abuse in childhood tend to be antisocial, aggressive and commit violent crimes later in life. Both the record approach (Widom) studying later outcomes among abused children and the retrospective approach (Lewis) studying violent childhood experiences among offenders provide support for the violence breeds violence hypothesis. It appears clear that punishment in child-rearing increases the risk for maladaptive developmental outcomes but that the mechanism explaining the link between negative parenting and later maladjustment is…
Retrospective reports of childhood abuse and neglect among violent and property offenders
1997
Abstract Childhood abuse and neglect may increase the risk for later antisocial and criminal behavior, especially violent behavior. The objective of this study was retrospectively to compare childhood abuse and neglect experiences in the groups of Violent and Property offenders. The sample consisted of 34 recidivist inmates with the mean age of 26.9 years. The findings showed that physical, psychological, and sexual abuse and neglect was experienced by 82%, 97%, 3% and 94% of the offenders, respectively. There were no significant differences in the prevalence of abuse or neglect between the Violent and Property offenders. Neither were the groups differentiated by any combination of the abus…
Emotional Intelligence in Child Molesters
2020
Various studies have examined intelligent quotients (IQs) in samples of pedophiles and child molesters. However, intelligence is not a monolithic construct; rather, it is made up of different dimen...
Effects of adenotonsillectomy on neurocognitive and behavioural function in pediatric obstructive sleep apnea syndrome
2018
Effects of adenotonsillectomy on neurocognitive and behavioural function in pediatric obstructive sleep apnea syndrome. Objectives: Aim of this study is to verify the presence of neurocognitive, neurobehavioral or sleep disturbances in children affected by adenotonsillar hypertrophy (ATH) and Obstructive Sleep Apnea Syndrome (OSAS) and verify their improvement after Adeno-Tonsillectomy (AT). Methods: Eighty children suffering from adenotonsillar hypertrophy and OSAS were recruited for AT in the ENT Department of the University of Palermo. All the children underwent clinical evaluation, including rhinofibroscopy for grading the obstruction due to the adenotonsillar hypertrophy (before and 6 …