Most of the cities located in Northern India are afflicted with the presence of unusually high concentration of PM
10 in the ambient environment posing a serious risk to human health. To understand ...the reasons underlying the persistence of the high levels of PM
10 in the Delhi region, a novel experiment was designed by appropriating a well-known tracer-source—Diwali fireworks—emitting a large amount of particulate matter (PM) in the atmosphere. Sequential eight hourly PM
10 samples were collected and analyzed for the elemental signatures associated with the tracer and other sources. Principal component analysis was used to resolve the sources; their respective mass contribution to PM
10 load, in time sequence, was estimated using absolute principal component score method. The results suggest that the well-established practice of city-wide street-cleaning, resuspends the surface deposited PM
10 back to the atmosphere. We suspect that this practice resuspends about 25% of the sedimented PM
10 back into the atmosphere.
We are presenting a rare case of bilateral breast cancer. A 65-year-old female reported to us with complaint of lump in the left breast. There was positive family history. The patient was diagnosed ...with carcinoma breast of left side on edge biopsy and of right side by ultrasonography, which was confirmed on fine needle aspiration cytology. At the time of admission, ultrasonography of the abdomen and right breast were normal. After 1 month, the patient was readmitted with redness over the inner quadrant of the right breast skin.
In this letter, measurements of the shared momentum fraction (zg) and the groomed jet radius (Rg), as defined in the SoftDrop algorithm, are reported in p+p collisions at s=200 GeV collected by the ...STAR experiment. These substructure observables are differentially measured for jets of varying resolution parameters from R=0.2−0.6 in the transverse momentum range 15<pT,jet<60 GeV/c. These studies show that, in the pT,jet range accessible at s=200 GeV and with increasing jet resolution parameter and jet transverse momentum, the zg distribution asymptotically converges to the DGLAP splitting kernel for a quark radiating a gluon. The groomed jet radius measurements reflect a momentum-dependent narrowing of the jet structure for jets of a given resolution parameter, i.e., the larger the pT,jet, the narrower the first splitting. For the first time, these fully corrected measurements are compared to Monte Carlo generators with leading order QCD matrix elements and leading log in the parton shower, and to state-of-the-art theoretical calculations at next-to-leading-log accuracy. We observe that PYTHIA 6 with parameters tuned to reproduce RHIC measurements is able to quantitatively describe data, whereas PYTHIA 8 and HERWIG 7, tuned to reproduce LHC data, are unable to provide a simultaneous description of both zg and Rg, resulting in opportunities for fine parameter tuning of these models for p+p collisions at RHIC energies. We also find that the theoretical calculations without non-perturbative corrections are able to qualitatively describe the trend in data for jets of large resolution parameters at high pT,jet, but fail at small jet resolution parameters and low jet transverse momenta.
We report a 38-year-old man with intestinal obstruction following transhiatal esophagectomy for carcinoma esophagus; it occurred secondary to herniation of the transverse colon through the esophageal ...hiatus into the mediastinum. The patient is asymptomatic after reduction of the hernia and repair of the disphragmatic hernia.
Traumatic abdominal wall hernia Singh, Rajdeep; Kaushik, Robin; Attri, A K
Yonsei medical journal,
06/2004, Letnik:
45, Številka:
3
Journal Article
Recenzirano
Odprti dostop
A traumatic abdominal wall hernia (TAWH) is a rare type of hernia, which follows blunt trauma to the abdomen, where disruption of the musculature and fascia occurs, with the overlying skin remaining ...intact. The case of a sixty five year old female that developed a TAWH, following the collapse of the roof of her house, is reported. She underwent a laparotomy for suspected liver injury, followed by repair of the hernia using a fascia lata graft taken from the thigh. The etiology, pathogenesis and management of this rare hernia are discussed.
Context
Hydatid disease in humans is most commonly caused by
Echinococcus granulosus
and results in development of cysts in various organs of body. The diagnosis is made by serology i.e. by ...estimation of antibody levels or on imaging studies. Enzyme-linked immunosorbent assay (ELISA) is widely used for serological confirmation of the disease.
Aim
To study the sensitivity of ELISA for IgG antibodies against
E. granulosus
in detecting hydatid disease of liver or lung.
Settings
A retrospective study of serology of all surgically confirmed cases of hydatid cysts of liver or lung in a tertiary level hospital.
Methods and material
The levels of IgG antibodies against Echinococcus, measured by ELISA, in patients of cystic lesions of liver or lung, who underwent surgery for the same and confirmed as having hydatid disease, during surgery or on histopathological examination after surgery, were recorded and analysed. There were 28 such patients from January 2001 to 2007. Twenty-three patients with hydatid cysts in liver and 4 in lung were included. One patient with hydatid liver was excluded from the study due to heavily calcified cyst.
Results
Two types of kits were used; one using crude antigen and other using purified antigens. Among 23 patients with hydatid cysts of liver, 8 had positive serology while 15 had either equivocal or negative results. All 4 patients with hydatid of lung had positive serology.
Conclusion
ELISA test is not sensitive enough to be relied upon for confirmation of hydatid disease and considering its high cost, an alternative more specific, sensitive, cheaper and easily available test needs to be evaluated for confirming hydatid disease.
The morphological characteristics of BC aggregates present in the soot and carbonaceous aerosol (CA) samples were investigated. The process of soot formation under laboratory conditions took into ...account the commonly used practice of burning fuel in the households in India. The fractal morphology was determined by using box counting algorithm and maximum projected area of the aggregates by using their digital electron microscopic images. Former provided the estimates of perimeter fractal dimension (PD
f) of each aggregate, and later estimated the average density fractal dimension (DD
f) of aggregate groups. Numbers of particles constituting the aggregates, using projected area approach, were significantly higher than the estimates based on pixel counting. The measured average diameter of the primary particles in aggregates, ranged between 24 and 57
nm. The fractal dimensions, PD
f, for the laboratory-generated soot aggregates varied from 1.36 to 1.88. The PD
f for aggregates derived from diesel-vehicles and biomass burning showed significant variation: biomass, 1.27; diesel vehicle, 1.82 and 1.7. The size and the dimensions estimated for the free fall CA samples showed large deviation. The ratio
L/
R
g (length/radius of gyration) for soot aggregates (gasoline, kerosene, diesel, mustard oil and hexane) ranged from 3.5 to 4.8. Surface morphology of these aggregates, using scanning electron microscope (SEM), showed the presence of spherical “charred cenosphere” like particles in gasoline and free fall aerosol aggregates. FTIR investigations revealed the presence of a large number of organic groups (OC) associated with carbonaceous aggregates present in soot and free fall aerosol samples.
We report the direct virtual photon invariant yields in the transverse momentum ranges 1<pT<3 GeV/c and 5<pT<10 GeV/c at mid-rapidity derived from the dielectron invariant mass continuum region ...0.10<Mee<0.28 GeV/c2 for 0–80% minimum-bias Au+Au collisions at sNN=200 GeV. A clear excess in the invariant yield compared to the nuclear overlap function TAA scaled p+p reference is observed in the pT range 1<pT<3 GeV/c. For pT>6 GeV/c the production follows TAA scaling. Model calculations with contributions from thermal radiation and initial hard parton scattering are consistent within uncertainties with the direct virtual photon invariant yield.
Azimuthal correlations of charged hadrons with direct-photon (γdir) and neutral-pion (π0) trigger particles are analyzed in central Au+Au and minimum-bias p+p collisions at sNN=200 GeV in the STAR ...experiment. The charged-hadron per-trigger yields at mid-rapidity from central Au+Au collisions are compared with p+p collisions to quantify the suppression in Au+Au collisions. The suppression of the away-side associated-particle yields per γdir trigger is independent of the transverse momentum of the trigger particle (pTtrig), whereas the suppression is smaller at low transverse momentum of the associated charged hadrons (pTassoc). Within uncertainty, similar levels of suppression are observed for γdir and π0 triggers as a function of zT (≡pTassoc/pTtrig). The results are compared with energy-loss-inspired theoretical model predictions. Our studies support previous conclusions that the lost energy reappears predominantly at low transverse momentum, regardless of the trigger energy.
We present a measurement of inclusive J/ψ production at mid-rapidity (|y|<1) in p+p collisions at a center-of-mass energy of s=200 GeV with the STAR experiment at the Relativistic Heavy Ion Collider ...(RHIC). The differential production cross section for J/ψ as a function of transverse momentum (pT) for 0<pT<14GeV/c and the total cross section are reported and compared to calculations from the color evaporation model and the non-relativistic Quantum Chromodynamics model. The dependence of J/ψ relative yields in three pT intervals on charged-particle multiplicity at mid-rapidity is measured for the first time in p+p collisions at s=200 GeV and compared with that measured at s=7 TeV, PYTHIA8 and EPOS3 Monte Carlo generators, and the Percolation model prediction.
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