Position of superciliare in relation to the lateral iris: testing a suggested facial approximation guideline

It has been suggested in the literature that superciliare is located directly above the most lateral point of the iris and that this association may be of use in facial approximation. However, the relationship between the lateral iris and superciliare has not been tested and its accuracy remains unknown. This study aims to determine the accuracy of this relationship using metric and non-metric analysis. The horizontal distance from superciliare to the lateral iris was measured, using photogrammetric methods, in Australians of European extraction (27 males, 48 females), central/south-east Asian extraction (20 males, 19 females) and individuals from other population groups (7 males, 7 females). Results indicate that superciliare position is best approximated by the lateral iris in females. On average, superciliare fell lateral to the lateral iris by 4.8 mm, S.D. 3.4 mm in males, and 1.2 mm, S.D. 5.4mm in females. In approximately 70-80% of the sample, the superciliare fell between the exocanthion and the pupil center on both sides. It is suggested that the proposed guideline that the lateral iris is equal to superciliare is not very accurate, especially for males. Also the large standard deviations indicate that the position of superciliare is highly variable. The above measures should, on average, give a more accurate prediction of superciliare in contrast to the lateral iris border, and therefore, they should be used in facial approximation. However, the large variation in superciliare position should be acknowledged.     

The Impact of School Mental Health Services on Out-of-School Suspension Rates

The current study investigated whether the presence of school-based mental health clinicians in an urban school district was associated with reduced out-of-school suspension rates. Forty one elementary schools with expanded school mental health (ESMH) programs were compared to 41 schools without ESMH programs. Correlational analyses revealed associations between suspension outcomes and several school-level demographic variables including school attendance rate, percent of students in poverty, and percent of nonwhite students in the school. After controlling for these variables, however, results of stepwise linear regressions demonstrated no significant differences between ESMH and non-ESMH schools on suspension outcomes. Results of the current study suggest that the presence of ESMH clinicians will not necessarily impact suspension rates in an elementary school. Targeted and well-implemented approaches to address behaviors that lead to suspension, or school- and system-level policies to provide alternatives to suspensions, will likely be a better route to achieving this outcome.     

Facial soft tissue depths in craniofacial identification (part II): An analytical review of the published sub-adult data

Prior research indicates that while statistically significant differences exist between subcategories of the adult soft tissue depth data, magnitudes of difference are small and possess little practical meaning when measurement errors and variations between measurement methods are considered. These findings raise questions as to what variables may or may not hold meaning for the sub-adult data. Of primary interest is the effect of age, as these differences have the potential to surpass the magnitude of measurement error. Data from the five studies in the literature on sub-adults which describe values for single integer age groups were pooled and differences across the ages examined. From 1 to 18 years, most soft tissue depth measurements increased by less than 3 mm. These results suggest that dividing the data for children into more than two age groups is unlikely to hold many advantages. Data were therefore split into two groups with the division point corresponding to the mid-point of the observed trends and main data density (0-11 and 12-18 years; division point = 11.5 years). Published sub-adult data for seven further studies which reported broader age groups were pooled with the data above to produce the final tallied soft tissue depth tables. These tables hold the advantages of increased sample sizes (pogonion has greater than 1770 individuals for either age group) and increased levels of certainty (as random and opposing systematic errors specific to each independent study should average out when the data are combined).     

Political environment and voluntary disclosure in the U.S.: Evidence from the Carbon Disclosure Project

We investigate whether the political leaning of the state where a given firm is headquartered is related to that firm's decision to voluntarily disclose climate change information. We study S&P 500 firms that were surveyed by the Carbon Disclosure Project (CDP) and find that firms headquartered in more Democratic states are more likely to disclose carbon emissions information to the CDP. Furthermore, firms in more Democratic states are more likely to permit public disclosure of their survey responses and tend to receive higher disclosure scores. We consider two political variables, one based on political power and one based on public political preference. Our results are consistent with political power driving the firm's willingness to voluntarily disclose information about climate change. These results suggest that the relation between the political environment and disclosure is more closely linked to concerns over regulatory threats as opposed to acquiescence to social norms.     

Blood aspiration as a vital sign detected by postmortem computed tomography imaging

Blood aspiration is a significant forensic finding. In this study, we examined the value of postmortem computed tomography (CT) imaging in evaluating findings of blood aspiration. We selected 37 cases with autopsy evidence of blood in the lungs and/or in the airways previously submitted to total-body CT scanning. The CT-images were retrospectively analyzed. In one case with pulmonary blood aspiration, biopsy specimens were obtained under CT guide for histological examination. In six cases, CT detected pulmonary abnormalities suggestive of blood aspiration, not mentioned in the autopsy reports. CT reconstructions provided additional data about the distribution and extent of aspiration. In one needle-biopsied case, the pulmonary specimens showed blood in the alveoli. We suggest the use of CT imaging as a tool complementary to traditional techniques in cases of blood aspiration to avoid misdiagnosis, to guide the investigation of lung tissue, and to allow for more evidence-based inferences on the cause of death.     

Forensic veterinary radiology: Ballistic-radiological 3D computertomographic reconstruction of an illegal lynx shooting in Switzerland

The lynx, which was reintroduced to Switzerland after being exterminated at the beginning of the 20th century, is protected by Swiss law. However, poaching occurs from time to time, which makes criminal investigations necessary. In the presented case, an illegally shot lynx was examined by conventional plane radiography and three-dimensional multislice computertomography (3D MSCT), of which the latter yielded superior results with respect to documentation and reconstruction of the inflicted gunshot wounds. We believe that 3D MSCT, already described in human forensic-pathological cases, is also a suitable and promising new technique for veterinary pathology.