28 research outputs found
Asymmetric Berry-Phase Interference Patterns in a Single-Molecule Magnet
A Mn4 single-molecule magnet displays asymmetric Berry-phase interference
patterns in the transverse-field (HT) dependence of the magnetization tunneling
probability when a longitudinal field (HL) is present, contrary to symmetric
patterns observed for HL=0. Reversal of HL results in a reflection of the
transverse-field asymmetry about HT=0, as expected on the basis of the
time-reversal invariance of the spin-orbit Hamiltonian which is responsible for
the tunneling oscillations. A fascinating motion of Berry-phase minima within
the transverse-field magnitude-direction phase space results from a competition
between noncollinear magnetoanisotropy tensors at the two distinct Mn sites.Comment: 4 double-column page
Taxonomic studies on developmental stages of Balanus sp. from Karachi (Northern Arabian Sea)
Present study deal with the identification of nauplius stages of Balanus sp. Collected during plankton and sediment sampling from Karachi coast. The stages are described, illustrated and compared with available literature
Morphological study of Cristapseudes omercooperi (Larwood, 1954) (Crustacea: Tanaidacea: Kalliapseudidae) manca stage I from Pakistani waters (Port Qasim)
Present paper deal with the morphological study of Cristapseudes
omercooperi (Larwood, 1954) Manca stage I. Sediment samples were taken from Port
Qasim (Lat. 25o46’N Long. 67o21’E) during 2008. The stage is described and illustrated
Study of planktonic and benthic caught naupliar stages of Rhincalanidae and Diosaccidae
The zooplankton samples and benthic samples were taken from Pasni Bay
(Lat 25 deg 16’N Long 63 deg 29’E) and Sandspit (Lat 24 deg 50’ 24”N Long 66
deg 54’ 24” E) respectively. Present study is undertaken to study the planktonic naupliar stage of
Rhincalanus sp. of Rhincalanidae and a benthic naupliar stage of unidentified
Diosaccidae
Larval developmental stages of Athanas dimorphus Ortmann, 1894 (Crustacea, Caridea, Alpheidae) in laboratory from Pakistan
An ovigerous female of Athanas dimorphus Ortmann, 1894 captured from
intertidal zone at Buleji (Karachi, Pakistan) on December 03, 2005 was kept under the
laboratory conditions. The larvae were hatched out on December 07, 2005. The zoea I of
Athanas dimorphus passed through II, III and IV zoeal stages within four days at room
temperature: 23°C-26°C, in filtered seawater with salinity of 35-37‰ and pH 7.5-7.9.
The developmental stages are described along with their illustrations and compared with
the available descriptions of Athanas dimorphus larvae given by Gurney, 1927 for the
first stage and Bhuti, et al., 1977 for first three stages. Thus, the fourth stage is being
described for the first time not only in the species but in the genus Athanas
First report of larval forms of Paragnathia sp. (Crustacea: Isopoda: Gnathidae) from Pakistani waters (Makri Creek)
The present report is based on the study of sample collected from Ghora
Bari (Makri Creek) on May 29, 2006 for the purpose of non-penaeid shrimps
exploitation. The sample, besides having shrimps have fishes belonging to several species
and isopod parasites in large numbers. The environmental parameters recorded are: water
temperature 31oC, Salinity 42 ppt and pH 8.7. Two larval stages of Paragnathia sp. are
described, illustrated and compared with the available descriptions of Paragnathia
formica pranizae larvae given earlier. The specimens are placed only tentatively in
Paragnathia sp. till the authors find adult specimens nevertheless this is the first report of
the genus and the larvae from the area
Redescription of Arcotheres placunae and three new records, A. aff. alcocki, A. casta and Pinnotheres quadratus from Pakistan with a note on previously recorded Pakistani Pinnotherid crabs
Arcotheres placunae a commen commensal of bivalve Placuna placenta is redescribed;two species of the same genus :A. aff. alcocki and A. casta and one species of another genus Pinnotheres P.quadratus are reported as new records from Pakistan. Previously recorded Pakistani pinnotherid crabs are reviewed
First-Phase Insulin Secretion Restoration and Differential Response to Glucose Load Depending on the Route of Administration in Type 2 Diabetic Subjects After Bariatric Surgery
OBJECTIVE—The purpose of this study was to elucidate the mechanisms of diabetes reversibility after malabsorptive bariatric surgery
Antiinflammatory Therapy with Canakinumab for Atherosclerotic Disease
Background: Experimental and clinical data suggest that reducing inflammation without affecting lipid levels may reduce the risk of cardiovascular disease. Yet, the inflammatory hypothesis of atherothrombosis has remained unproved. Methods: We conducted a randomized, double-blind trial of canakinumab, a therapeutic monoclonal antibody targeting interleukin-1β, involving 10,061 patients with previous myocardial infarction and a high-sensitivity C-reactive protein level of 2 mg or more per liter. The trial compared three doses of canakinumab (50 mg, 150 mg, and 300 mg, administered subcutaneously every 3 months) with placebo. The primary efficacy end point was nonfatal myocardial infarction, nonfatal stroke, or cardiovascular death. RESULTS: At 48 months, the median reduction from baseline in the high-sensitivity C-reactive protein level was 26 percentage points greater in the group that received the 50-mg dose of canakinumab, 37 percentage points greater in the 150-mg group, and 41 percentage points greater in the 300-mg group than in the placebo group. Canakinumab did not reduce lipid levels from baseline. At a median follow-up of 3.7 years, the incidence rate for the primary end point was 4.50 events per 100 person-years in the placebo group, 4.11 events per 100 person-years in the 50-mg group, 3.86 events per 100 person-years in the 150-mg group, and 3.90 events per 100 person-years in the 300-mg group. The hazard ratios as compared with placebo were as follows: in the 50-mg group, 0.93 (95% confidence interval [CI], 0.80 to 1.07; P = 0.30); in the 150-mg group, 0.85 (95% CI, 0.74 to 0.98; P = 0.021); and in the 300-mg group, 0.86 (95% CI, 0.75 to 0.99; P = 0.031). The 150-mg dose, but not the other doses, met the prespecified multiplicity-adjusted threshold for statistical significance for the primary end point and the secondary end point that additionally included hospitalization for unstable angina that led to urgent revascularization (hazard ratio vs. placebo, 0.83; 95% CI, 0.73 to 0.95; P = 0.005). Canakinumab was associated with a higher incidence of fatal infection than was placebo. There was no significant difference in all-cause mortality (hazard ratio for all canakinumab doses vs. placebo, 0.94; 95% CI, 0.83 to 1.06; P = 0.31). Conclusions: Antiinflammatory therapy targeting the interleukin-1β innate immunity pathway with canakinumab at a dose of 150 mg every 3 months led to a significantly lower rate of recurrent cardiovascular events than placebo, independent of lipid-level lowering. (Funded by Novartis; CANTOS ClinicalTrials.gov number, NCT01327846.
The Non-party Caretaker Government (NCG) for conducting elections: Bangladesh as a case study
This paper is based on empirical data collected mainly from published secondary sources, personal observation of national election as well as information from the EC website and print and electronic media about election and democracy in Bangladesh. The paper argues that Bangladesh democracy is again at the crossroads as the provision of Non-party Caretaker Government (NCG) has been scrapped from the Constitution despite resistance from the main opposition block. In fact, even after restoration of democracy in 1991, democracy has been provided with little room for expected development by uncouth electoral politics. Though an interim arrangement, called Caretaker System, was introduced for transition from dictatorship into democracy in 1991, the system had to be continued due to distrust of elections under party governments. Three consecutive Caretaker Governments were relatively successful in holding free and fair elections. However, the fourth one suffered a setback owing to composition imbroglio and was replaced by a military-backed Caretaker Government. Therefore, this paper draws the conclusion that though electoral system under Non-Party Caretaker Government system achieved kind of stability during the last four general elections but little qualitative change has taken place in the country’s political arena