4,209 research outputs found
Oesophageal Leiomyoma: an Incidental Autopsy Finding in a Neglected Elderly Individual
Background: Elderly abuse is a prevalent entity in the Indian society. Apart from physical and verbal abuse, neglect is very commonly seen in families with disputes. Neglect as a form of elderly abuse rarely comes to light as many people are not forthcoming to disclose these aspects due to social stigma associated with it.Case Report: Here is a case of an elderly male who committed suicide to end his misery of unresolving dysphagia as stated in his death note.Conclusion: An oesophageal leiomyoma was incidental finding at autopsy which explained the symptoms mentioned in his death note which drove him to desperation to end his life
Death due to Positional Asphyxia – a Case Report
Background: Positional asphyxia is virtually always an accident and is associated with alcohol or drug intoxication. In positional asphyxia individuals do get trapped in restricted spaces.Case Report: We are presenting a case of 26-years old young adult male, who was intoxicated with alcohol, positioned himself in such a way that it led to his death due to positional asphyxia. Conclusion: The positional asphyxia has been defined as asphyxia caused due to unusual position of the body which interferes with the breathing and thus pulmonary ventilation The cases of positional asphyxia are difficult to diagnose because of the absence of any specific external findings.
Tracing the evolution of the symmetry energy of hot nuclear fragments from the compound nucleus towards multifragmentation
The evolution of the symmetry energy coefficient of the binding energy of hot
fragments with increasing excitation is explored in multifragmentation
processes following heavy-ion collisions below the Fermi energy. In this work,
high-resolution mass spectrometric data on isotopic distributions of
projectile-like fragments from collisions of 25 MeV/nucleon 86Kr and 64Ni beams
on heavy neutron-rich targets are systematically compared to calculations
involving the Statistical Multifragmentation Model. The study reveals a gradual
decrease of the symmetry energy coefficient from 25 MeV at the compound nucleus
regime (E*/A < 2 MeV) towards 15 MeV in the bulk multifragmentation regime
(E*/A > 4 MeV). The ensuing isotopic distributions of the hot fragments are
found to be very wide and extend towards the neutron drip-line. These findings
may have important implications to the composition and evolution of hot
astrophysical environments, such as core-collapse supernova.Comment: 5 pages, 4 figures, submitted to Phys. Rev.
Line Profiles of Cores within Clusters. III. What is the most reliable tracer of core collapse in dense clusters?
Recent observational and theoretical investigations have emphasised the
importance of filamentary networks within molecular clouds as sites of star
formation. Since such environments are more complex than those of isolated
cores, it is essential to understand how the observed line profiles from
collapsing cores with non-spherical geometry are affected by filaments. In this
study, we investigate line profile asymmetries by performing radiative transfer
calculations on hydrodynamic models of three collapsing cores that are embedded
in filaments. We compare the results to those that are expected for isolated
cores. We model the five lowest rotational transition line (J = 1-0, 2-1, 3-2,
4-3, and 5-4) of both optically thick (HCN, HCO) as well as optically thin
(NH, HCO) molecules using constant abundance laws. We find
that less than 50% of simulated (1-0) transition lines show blue infall
asymmetries due to obscuration by the surrounding filament. However, the
fraction of collapsing cores that have a blue asymmetric emission line profile
rises to 90% when observed in the (4-3) transition. Since the densest gas
towards the collapsing core can excite higher rotational states, upper level
transitions are more likely to produce blue asymmetric emission profiles. We
conclude that even in irregular, embedded cores one can trace infalling gas
motions with blue asymmetric line profiles of optically thick lines by
observing higher transitions. The best tracer of collapse motions of our sample
is the (4-3) transition of HCN, but the (3-2) and (5-4) transitions of both HCN
and HCO are also good tracers.Comment: accepted by MNRAS; 13 pages, 16 figures, 6 table
The decay time scale for highly excited nuclei as seen from asymmetrical emission of particles
A novel method was developed for the extraction of short emission times of
light particles from the projectile-like fragments in peripheral deep-inelastic
collisions in the Fermi energy domain. We have taken an advantage of the fact
that in the external Coulomb field particles are evaporated asymmetrically. It
was possible to determine the emission times in the interval 50-500 fm/c using
the backward emission anisotropy of alpha-particles relative to the largest
residue, in the reaction 28Si + 112Sn at 50 MeV/nucleon. The extracted times
are consistent with predictions based on the evaporation decay widths
calculated with the statistical evaporation model generalized for the case of
the Coulomb interaction with the target.Comment: 13 pages, 5 figures, submitted to Phys. Lett.
Induction of Lipoxygenase in downy mildew resistant seedlings of pearl millet in response to inoculation with Sclerospora graminicola
Lipoxygenase (LOX) activity was studied in seedlings of pearl millet genotypes resistant and susceptible to downy mildew pathogen Sclerospora graminicola. An increase in LOX activity was observed during the incompatible host-pathogen interaction whereas the activity decreased in compatible ones. Resistant pearl millet seedlings exhibited a 2.4-fold increase in LOX activity after inoculation with the pathogen. The enzyme activity was maximum at 18 h after inoculation. The enzyme activity was maximum in shoot portion of resistant genotype after inoculation. The enzyme activity correlated well with the degree of host-resistance to the pathogen. Substrate-based gel assay revealed five isozymes (LOX-1, LOX-2, LOX-3, LOX-4 & LOX-5) in both susceptible and resistant genotype. An additional isozyme (LOX-6) was unique to only resistant genotype after inoculation
Botox in periodontics - Exploring new avenues
From a periodontal point of view, various factors contribute to facial aesthetics. In the recent past, studies have revealed that excessive gingival display is a factor that influences an individual’ smile line. Some literature exists to support that more than excessive gingival display of more than 3mm is considered unaesthetic and termed a ‘gummy smile’ (GS). The prevalence of 'gummy smile’ has been 10% and to be more common in females. Gingival hyperplasia altered passive eruption, vertical maxillary excess, and upper-lip hypermobility can all result in excessive gingival display when a patient smile.To select the correct treatment protocol, accurate diagnosis is essential. Various techniques have been used to treat gummy smile which includes surgical and non-surgical methods. Recently a non-surgical method using Botulinum toxin gained popularity considering that the method is minimally invasive
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