553 research outputs found
Human Skin Detection Using RGB, HSV and YCbCr Color Models
Human Skin detection deals with the recognition of skin-colored pixels and
regions in a given image. Skin color is often used in human skin detection
because it is invariant to orientation and size and is fast to process. A new
human skin detection algorithm is proposed in this paper. The three main
parameters for recognizing a skin pixel are RGB (Red, Green, Blue), HSV (Hue,
Saturation, Value) and YCbCr (Luminance, Chrominance) color models. The
objective of proposed algorithm is to improve the recognition of skin pixels in
given images. The algorithm not only considers individual ranges of the three
color parameters but also takes into ac- count combinational ranges which
provide greater accuracy in recognizing the skin area in a given image.Comment: ICCASP/ICMMD-2016. Published by Atlantic Press. Part of series: AISR
ISBN: 978-94-6252-305-0 ISSN: 1951-685
Inequalities in maternity care and newborn outcomes: one-year surveillance of births in vulnerable slum communities in Mumbai
Background: Aggregate urban health statistics mask inequalities. We described maternity care in
vulnerable slum communities in Mumbai, and examined differences in care and outcomes between
more and less deprived groups.
Methods: We collected information through a birth surveillance system covering a population of
over 280 000 in 48 vulnerable slum localities. Resident women identified births in their own
localities and mothers and families were interviewed at 6 weeks after delivery. We analysed data
on 5687 births over one year to September 2006. Socioeconomic status was classified using
quartiles of standardized asset scores.
Results: Women in higher socioeconomic quartile groups were less likely to have married and
conceived in their teens (Odds ratio 0.74, 95% confidence interval 0.69–0.79, and 0.82, 0.78–0.87,
respectively). There was a socioeconomic gradient away from public sector maternity care with
increasing socioeconomic status (0.75, 0.70–0.79 for antenatal care and 0.66, 0.61–0.71 for
institutional delivery). Women in the least poor group were five times less likely to deliver at home
(0.17, 0.10–0.27) as women in the poorest group and about four times less likely to deliver in the
public sector (0.27, 0.21–0.35). Rising socioeconomic status was associated with a lower
prevalence of low birth weight (0.91, 0.85–0.97). Stillbirth rates did not vary, but neonatal mortality
rates fell non-significantly as socioeconomic status increased (0.88, 0.71–1.08).
Conclusion: Analyses of this type have usually been applied across the population spectrum from
richest to poorest, and we were struck by the regularly stepped picture of inequalities within the
urban poor, a group that might inadvertently be considered relatively homogeneous. The poorest
slum residents are more dependent upon public sector health care, but the regular progression
towards the private sector raises questions about its quality and regulation. It also underlines the
need for healthcare provision strategies to take account of both sectors
Observations on the biology of Harpodon nehereus (Hamilton)
The total catch of Bombay duck in Inaia during 1949 was estimated as about- 7250 tons ie about 2% of the total yield of marine fishes of India. The fishing season commences, some time in Septembeer just after the South West monsoon and continues for a period of about 4 to 5 months. It is also available during the other months of the year in smaller numbers but is somewhat rare during May to August
Can We Do Away With PTBD?
Percutaneous Transhepatic Biliary Drainage (PTBD) is performed in surgical jaundice to
decompress the biliary tree and improve hepatic functions. However, the risk of sepsis is high
in these patients due to immunosuppression and surgical outcome remains poor. This raises a
question—can we do away with PTBD? To answer this query a study was carried out in 4
groups of patients bearing in mind the high incidence of sepsis and our earlier studies, which
have demonstrated immunotherapeutic potential of Tinospora cordifolia (TC): (A) those
undergoing surgery without PTBD (n = 14), (B) those undergoing surgery after PTBD
(n = 13). The mortality was 57.14% in Group A as compared to 61.54% in Group B. Serial
estimations of bilirubin levels carried out during the course of drainage (3 Wks) revealed a
gradual and significant decrease from 12.52 ± 8.3 mg% to 5.85 ± 3.0 mg%. Antipyrine half-life
did not change significantly (18.35 ± 4.2 hrs compared to basal values 21.96 ± 3.78 hrs). The
phagocytic and intracellular killing (ICK) capacities of PMN remained suppressed (Basal:
22.13 ± 3.68% phago, and 19.1 ± 4.49% ICK; Post drainage: 20 ± 8.48% Phago and 11.15 ± 3.05% ICK). Thus PTBD did not improve the metabolic capacity ofthe liver and mortality was
higher due to sepsis. Group (C) patientg received TC during PTBD (n = 16) and Group (D)
patients received TC without PTBD (n = 14). A significant improvement in PMN functions
occurred by 3 weeks in both groups (30.29 ± 4.68% phago, 30 ± 4.84% ICK in Group C and
30.4 ± 2.99% phago, 27.15 ± 6.19% ICK in Group D). The mortality in Groups C and D was
25% and 14.2% respectively during the preoperative period. There was no mortality after
surgery. It appears from this study that host defenses as reflected by PMN functions play an
important role in influencing prognosis. Further decompression of the biliary tree by PTBD
seems unwarranted
Magnetic behavior of nanocrystalline ErCo2
We have investigated the magnetic behavior of the nanocrystalline form of a
well-known Laves phase compound, ErCo2 - the bulk form of which has been known
to undergo an interesting first-order ferrimagnetic ordering near 32 K -
synthesized by high-energy ball-milling. It is found that, in these
nanocrystallites, Co exhibits ferromagnetic order at room temperature as
inferred from the magnetization data. However, the magnetic transition
temperature for Er sublattice remains essentially unaffected as though the
(Er)4f-Co(3d) coupling is weak on Er magnetism. The net magnetic moment as
measured at high fields, sat at 120 kOe, is significantly reduced with respect
to that for the bulk in the ferrimagnetically ordered state and possible
reasons are outlined. We have also compared the magnetocaloric behavior for the
bulk and the nano particles.Comment: JPCM, in pres
Community resource centres to improve the health of women and children in Mumbai slums: study protocol for a cluster randomized controlled trial
Background: The trial addresses the general question of whether community resource centers run by a non-government organization improve the health of women and children in slums. The resource centers will be run by the Society for Nutrition, Education and Health Action, and the trial will evaluate their effects on a series of public health indicators. Each resource center will be located in a vulnerable Mumbai slum area and will serve as a base for salaried community workers, supervised by officers and coordinators, to organize the collection and dissemination of health information, provision of services, home visits to identify and counsel families at risk, referral of individuals and families to appropriate services and support for their access, meetings of community members and providers, and events and campaigns on health issues.
Methods/design: A cluster randomized controlled trial in which 20 urban slum areas with resource centers are compared with 20 control areas. Each cluster will contain approximately 600 households and randomized allocation will be in three blocked phases, of 12, 12 and 16 clusters. Any resident of an intervention cluster will be able to participate in the intervention, but the resource centers will target women and children, particularly women of reproductive age and children under 5.
The outcomes will be assessed through a household census after 2 years of resource center operations. The primary outcomes are unmet need for family planning in women aged 15 to 49 years, proportion of children under 5 years of age not fully immunized for their ages, and proportion of children under 5 years of age with weight for height less than 2 standard deviations below the median for age and sex. Secondary outcomes describe adolescent pregnancies, home deliveries, receipt of conditional cash transfers for institutional delivery, other childhood anthropometric indices, use of public sector health and nutrition services, indices of infant and young child feeding, and consultation for violence against women and children
Anthraquinone & Anthrone Series: Part XXVI. A new synthesis of chrysophanol, rhein, islandicin, emodin & physcion
A new general method for the synthesis of chrysophanol, rhein, islandicin, emodin and physcion, starting from common dye intermediates such as 1-amino-5-chloroanthraquinone and 2-methylanthraquinone, is described. Though a number of stages such as halogenation, deamination, replacement of halogen by hydroxyl, methoxylation and demethylation are involved in the synthesis, the reactions proceed without difficulty and good yields are obtained
Community mobilization in Mumbai slums to improve perinatal care and outcomes: a cluster randomized controlled trial.
Improving maternal and newborn health in low-income settings requires both health service and community action. Previous community initiatives have been predominantly rural, but India is urbanizing. While working to improve health service quality, we tested an intervention in which urban slum-dweller women's groups worked to improve local perinatal health
Emblica Officinalis: A Novel Therapy for Acute Pancreatitis — An Experimental Study
Acute necrotising pancreatitis is associated with an unacceptably high mortality for which no
satisfactory remedy exists. Emblica officinalis (E.o.) is a plant prescribed in Ayurveda, the
Indian traditional system of medicine, for pancreas-related disorders. This study was carried
out to evaluate the protective effect of E.o. against acute necrotising pancreatitis in dogs.
Pancreatitis was induced by injecting a mixture of trypsin, bile and blood into the duodenal
opening of the pancreatic duct. Twenty eight dogs were divided into 4 groups (n = 6-8 each):
GpI–control, GpII–acute pancreatitis, GpIII–sham-operated, GpIV–pretreatment with
28 mg E.o./kg/day for 15 days before inducing pancreatitis. Serum amylase increased from
541.99 ± 129.13 IU/ml to 1592.63 ± 327.83 IU (p<0.02) 2 hrs after the induction of pancreatitis
in GpII. The rise in serum amylase in both GpIII and GpIV was not significant. On
light microscopic examination, acinar cell damage was less and the total inflammatory score
was significantly lower in the E.o. treated group as compared to GpII. Electron microscopy
confirmed this and showed an increased amount of smooth, endoplasmic reticulum and small,
condensed granules embedded in a vacuole. More studies are needed to explore the clinical
potential of E.o. and its mechanism of action
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