Variation in amino acid and lipid composition of latent fingerprints

The enhancement of latent fingerprints, both at the crime scene and in the laboratory using an array of chemical, physical and optical techniques, permits their use for identification. Despite the plethora of techniques available, there are occasions when latent fingerprints are not successfully enhanced. An understanding of latent fingerprint chemistry and behaviour will aid the improvement of current techniques and the development of novel ones. In this study the amino acid and fatty acid content of ‘real’ latent fingerprints collected on a non-porous surface was analysed by gas chromatography–mass spectrometry. Squalene was also quantified in addition. Hexadecanoic acid, octadecanoic acid and cis-9- octadecenoic acid were the most abundant fatty acids in all samples. There was, however, wide variation in the relative amounts of each fatty acid in each sample. It was clearly demonstrated that touching sebum-rich areas of the face immediately prior to fingerprint deposition resulted in a significant increase in the amount of fatty acids and squalene deposited in the resulting ‘groomed’ fingerprints. Serine was the most abundant amino acid identified followed by glycine, alanine and aspartic acid. The significant quantitative differences between the ‘natural’ and ‘groomed’ fingerprint samples seen for fatty acids were not observed in the case of the amino acids. This study demonstrates the variation in latent fingerprint composition between individuals and the impact of the sampling protocol on the quantitative analysis of fingerprints

Rifampin-resistant Meningococcal Disease

Rifampin-resistant meningococcal disease occurred in a child who had completed rifampin chemoprophylaxis for exposure to a sibling with meningococcemia. Susceptibility testing of 331 case isolates found only 1 other case of rifampin-resistant disease in Minnesota, USA, during 11 years of statewide surveillance. Point mutations in the RNA polymerase β subunit (rpoB) gene were found in isolates from each rifampin-resistant case-patient

Resting her Case: “MeToo à la française” – Springora and Others

RESTING HER CASE: “METOO À LA FRANÇAISE” – SPRINGORA AND OTHERS Pólemos (Rights reserved) (-) Resting her Case: “MeToo à la française” – Springora and Others / Almog, Shulamit (CC BY) (-

Revisiting Collaborations Between Nonprofits and Businesses

Collaborations between nonprofits and businesses (CBNB) are a developing field of action. Much of the research deals with the business’s perspective. Usage of third sector and nonprofit management methods is a relatively new field of research. This article presents a qualitative case study of a three year collaboration between a nonprofit organization (NPO) and a pharmaceutical company that focuses on the NPO’s unique perceptions and points of view about the partnership. The findings reveal that the most crucial element affecting the success or failure of a collaboration is the added value that the business partner brings to the relationship. Furthermore, power relations suggest that weak positioning might benefit the NPO. We introduce the Fields of Action Typology of collaborations between nonprofits and businesses that adds a content layer to current classifications of CBNB and is helpful for defining and examining the benefits NPOs can derive from CBNB. </jats:p

On the job training in the dissection room: from physical therapy graduates to junior anatomy instructors

AbstractBackground The training of near-peer (NP) teachers and junior faculty instructors received major attention as a possible solution for the shortage of experienced anatomy instructors in faculties of medicine and health professions. Several studies described the training of NP teachers and junior instructors (≤ 2 years of teaching experience) using various methods. However, few publications include On the Job Training (OJT), which enables reflection and performance evaluation and encourages professionals to cope with their blind spots. Previous publications describing OJT did not include formal observation of the NP teacher or junior instructor. Therefore, this study aimed to present a novel approach to OJT inclusion during prosection laboratories based on the Lewinian experiential model.Methods Eight physical therapy (PT) graduates were recruited as junior anatomy instructors into the prosection laboratories. All participated in a unique training program during two consecutive academic years (2017, 2018) and received OJT during the teaching sessions. Two questionnaires were filled out to evaluate the educational impact of the training program. Eighty-three first-year PT students participated in prosection laboratories in anatomy taught by junior instructors, and filled out a questionnaire evaluating the performance of both junior and senior instructors. In addition, we compared the final grades in anatomy obtained by students taught by senior instructors to the grades of those taught by junior instructors.Results Each junior anatomy instructor participated in four OJT sessions. Based on self-reported measures, all professional and didactic aspects of the training program received a median score of 4.5 or higher on a five-point Likert scale. Students obtained similar grades in anatomy when taught by junior instructors compared with senior ones, and were similarly satisfied from the teaching performance of both senior and junior anatomy instructors.Conclusions OJT is applicable in a small-sized PT program facing a shortage of anatomy instructors. Including junior anatomy instructors in prosection laboratories for PT students is a viable solution to the shortage of experienced anatomy instructors. Further study, involving a larger cohort with a longer follow up will strengthen the preliminary results presented here.</jats:sec

Avian Sarcoma Leukemia Virus Protease Linked to the AdjacentGagPolyprotein Is Enzymatically Active

AbstractThe activity of avian sarcoma leukemia virus (ASLV) protease (PR) prior to its release from the precursor protein was determined by introducing mutations at the cleavage site between PR and the adjacent upstream nucleocapsid (NC) protein.GagDNA fragments containing these mutations were cloned into expression vectors and introduced intoEscherichia coliin which the ASLV proteins were expressed. The dipeptide NC-PR containing these mutations did not undergo autoprocessing when expressed in bacterial cells and the fused proteins were devoid of enzymatic activity. However, when the wholeGagpolyprotein containing these mutations was expressed in bacterial cells, other PR cleavage sites in the viralGagpolyprotein underwent normal cleavage, indicating that the release of free PR is not a prerequisite for correct processing of the ASLVGagprecursor

Additional file 3 of On the job training in the dissection room: from physical therapy graduates to junior anatomy instructors

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Additional file 1 of On the job training in the dissection room: from physical therapy graduates to junior anatomy instructors

Additional file 1