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OALib Journal期刊

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Modelling of Habitat Suitability Index for Muntjac Muntiacus muntjak Using Remote Sensing, GIS and Multiple Logistic Regression
Imam EKWAL,Hussain TAHIR,Mary TAHIR
Journal of Settlements and Spatial Planning , 2012,
Abstract: Habitat degradation and loss has been widely recognized as the main cause for the decline of wildlife population. Evaluating the quality of wildlife habitat can provide essential information for wildlife refuge design and management. The purpose of this study was to produce georeferenced ecological information about suitable habitats available for muntjac, Muntiacus muntjak in Chandoli tiger reserve, India (17° 04' 00" N to 17° 19' 54" N and 73° 40' 43" E to 73° 53' 09" E). Habitats were evaluated using multiple logistic regression integrated with remote sensing and geographic information system. Satellite imageries of LISS-III of IRS-P6 of study area were digitally processed. To generate collateral data topographic maps were analysed in a GIS framework. Layers of different variables such as Landuse land cover, forest density, proximity to disturbances and water resources and a digital terrain model were created from satellite and topographic sheets. These layers along with GPS location of muntjac presence/absence and ―multiple logistic regression (MLR) techniques were integrated in a GIS environment to model habitat suitability index of muntjac. The results indicate that approximately 222.39 km2 (75.4%) of the forest of tiger reserve was least suitable for muntjac, whereas, 29.53 km2 (10.02%) was moderately suitable, 22.12 km2 (7.5%) suitable and 20.70 km2 (7.0%) was highly suitable. The accuracy level of this model was 97.6%. The model can be considered as potent enough to advocate that forests of this area are most appropriate for declaring it as a reserve for muntjac conservation, ultimately to provide prey base for tiger.
Synthesis, Spectral and Electrochemical Studies of Complex of Uranium(IV) with Pyridine-3-Carboxylic Acid  [PDF]
Misbah Nazir, Iftikhar Imam Naqvi
American Journal of Analytical Chemistry (AJAC) , 2013, DOI: 10.4236/ajac.2013.43018
Abstract:

The investigation of complexation of uranium with biological active ligands is vital for understanding uranium speciation in biosystems. A number of studies have been undertaken for investigating the complexation of uranium in its (VI) oxidation states but similar investigations pertaining to the interaction of uranium, in lower oxidation states, with biological ligands is scarce. The aim of the work is to bridge this gap and studies have been carried out to determine the coordination pattern of pyridine-3-carboxylic acid with uranium(IV). Semi-micro analysis, spectro-analytical techniques, magnetic susceptibility and cyclic voltammetry have been employed for the characterization of the synthesized complex.

The complexities in the classification of protozoa: a challenge to parasitologists
TS Imam
Bayero Journal of Pure and Applied Sciences , 2009,
Abstract: This paper revisits the controversial issues bedevilling classification of the parasitic protozoa as a result of varying interest by different scientists belonging to protozoology and parasitology axes. In recent years, the availability of a number of molecular markers has made it possible to analyse relationships between protozoa that would not have been possible using morphological characters alone. Three terms are currently widely used: Protozoa, Protoctista, and Protista. However, parasitologists tend to be very conservative and the term Protozoa is now almost universally used by scientist working with those parasitic unicellular organisms that infect humans and domesticated animals. With the creation of 5 kingdoms, status of Protozoa was raised to that of a kingdom, which formerly was a Phylum. Thus, the subordinate groups automatically became Phyla. The increase in the number of parasitic protozoa recorded from humans and the accumulation of knowledge about their biology led to the creation of taxonomic and other groupings at the subgenus and subspecie levels. Corliss (1994) in his scheme has used both traditional and contemporary approaches and has attempted to retain familiar names as far as possible. It is important that any classification should reflect modern thinking about the classification as a whole, while retaining sufficient traditional material so as to permit every reference to information retrieval systems
Assessment of Heavy Metals Concentrations in the Surface Water of Bompai-Jakara Drainage Basin, Kano State, Northern Nigeria
TS Imam
Bayero Journal of Pure and Applied Sciences , 2012,
Abstract: This work aimed at assessing the concentrations of heavy metals in the surface water of Bompai-Jakara drainage basin. The points of sampling were designated as A, B, C, D, E, and F. Acid-washed (1L) plastic bottles were used in collecting the water samples, which were then digested using nitric acid (HNO3). The digested samples were analyzed for Fe, Cr, Cu, Zn and Pb using Atomic Absorption Spectrophotometer (Model IL250). The seasonal sequence of heavy metals concentrations showed Zn>Fe>Cr>Cu>Pb and Fe>Zn>Cr>Cu>Pb in dry and wet seasons respectively, while that of annual was Cr>Fe>Zn>Cu>Pb. The results showed that all of the five elements analyzed have concentrations well above the FEPA, WHO, AWWA, CCME standard limit for effluents discharge into surface. There was an observed seasonal variations in which dry season had a relatively higher heavy metals concentration, but not statistically significant at P≤0.05. This study underscores the need for the government to establish water catchments management agency for the purpose of protecting the basin ecologically and health wise, bearing in mind the socio-economic potentialities the basin has on the populace utilizing it and the nation in general.
Mapping of Landscape Cover Using Remote Sensing and GIS in Chandoli National Park, India
E Imam
Momona Ethiopian Journal of Science , 2011,
Abstract: Humankind to fulfill its needs has put natural resources of the earth to a severe pressure. The rate of degradation and depletion of earth resources has accelerated tremendously in view of the overincreasing demographic pressure. Therefore, mapping of landscape cover types to evaluate it has been a great concern for forest and wildlife managers. Both managers find it very important to know how much area is suitable for wildlife species and what areas are affected due to anthropogenic pressure. To address these concerns in Chandoli National Park its land-use landcover and forest crown density were mapped. The National Park is situated in Western Ghats, India lying within 170 04' 00" N to 170 19' 54" N and 730 40' 43" E to 730 53' 09" E. In the present study, Remote Sensing (RS) and Geographical Information System (GIS) techniques were used. Remotely sensed data procured from satellite IRS-P6, LISS-III (2005) and collateral data generated from topographic maps were processed using ERDAS IMAGINE and ArcView softwares. Land-use land-cover map of the study area was prepared from satellite data using supervised maximum likelihood classification technique, which revealed that Park supports diversified landscape of scrubland (27.37%), grassland (20.05%), rejuvenated forest (22.40%) and evergreen forest (16.01%). On the other hand Normalized Difference Vegetation Index (NDVI) was used to prepare a forest crown density map, which revealed that majority of the forest cover (126.10 km2) was under the crown density of 40-100%.
Immuncontraception Reversibility Test of Goat Zona Pellucida-3 (gZP3) on Mice (Mus musculus)
IMAM MUSTOFA
HAYATI Journal of Biosciences , 2006,
Abstract: The aim of this study was to prove the reversibility of gZP3 protein on mice as an animal model. Treatment group of mice (Mus musculus) were immunized with 40 g goat zona pellucida-3 (gZP3) as an anti fertility agent. Control group of mice were injected only with physiologic solution. The mice were injected three times, the first injection as an immunization. The second and third injected as a booster with 14 days interval. The first injection, gZP3 suspension was diluted in complete Freund’s adjuvant (CFA). The boosters, gZP3 suspension was diluted in incomplete Freund’s adjuvant (IFA) 1:1 (v/v). Blood samples were collected before immunization, seven days after the second booster and at the time of parturition. Seven days after the last injection, the mice were mated, and the parturition was observed after that. The result showed that antibody titer of immunized mice serum was increasing (P < 0.05) seven days after immunization, and decreasing (P > 0.05) after parturition compared to antibody titer of serum before immunization. Dot blotting analysis showed that gZP3 protein could recognize gZP3 antibody of the immunized mice. Protein of gZP3 as an immunocontraceptive substance was reversible in 91.60 + 4.90 days. This reversibility was longer (P < 0.05) compared to control mice i.e. 26.50 + 4.30 days.
OPTIMASI BANDWITH MENGGUNAKAN TRAFFIC SHAPPING
Imam Riadi
Jurnal Informatika , 2012,
Abstract: Perkembangan layanan komunikasi telah berkembang sangat pesat. Salah satunya adalah pemanfaatan penggunaan bandwith untuk mengakases jaringan Internet. Traffic shapping bandwidth dapat memberikan efesiensi dalam hal pemanfaatan bandwidth pada instansi yang melakukan manajemen dalam lalulintas jaringannya. Metode yang digunakan dalam penelitian ini adalah metode literatur yaitu metode pengumpulan data yang dilakukan dengan mengumpulkan sumber-sumber data yang terkait dan metode eksperimen yaitu melakukan penelitian dengan mengkonfigurasi Mikrotik RouterOS untuk melakukan traffic shapping bandwidth. Hasil penelitian ini adalah router yang dapat melakukan traffic shapping sehingga kualitas koneksi menjadi lebih baik untuk mengakses dan mengambil data dari sebuah website.
Intra-ocular fish bone- a case report
Imam S
Indian Journal of Ophthalmology , 1961,
Abstract:
Pnictide Half-Dirac Nodal Quasiparticle Scaling Properties in Vortex State
Imam Makhfudz
Physics , 2011,
Abstract: In this work we investigate the scaling properties of quasiparticles of Pnictide with "half-Dirac" node under magnetic field in vortex state. By computing the density of states, we aim to find in vortex state the form of non-Simon-Lee scaling predicted for such system by several recent works in non-vortex state. We find by exact diagonalization of the Bogoliubov-de Genne Hamiltonian and finite size scaling a $N(E)\sim \sqrt{E}$ power law in the case without magnetic field which agrees with analytical prediction. We consider the vortex state by first studying the hypothetical situation of uniform magnetic field without vortices and then we properly treat the magnetic field-induced vortex lattice by expressing the BdG Hamiltonian in terms of superfluid velocity and Berry's gauge fields. The two calculations are shown to agree with each other. We then analyze quantitatively, the effects of anisotropic dispersion to the scaling properties of vortex lattice and show that the vortex lattice spacings will scale as $d'_y\sim s^{-\eta}d'_x $ where $1/2\leq \eta\leq1$ and $s\sim H^2/3$ as compared to $\eta=1/2$ from dimensional scaling analysis of non-vortex state. A very crucial prediction is also made on an upper bound to the value of 'anomalous dimension' $\delta$ of density of states scaling with magnetic field which we find to be $\delta\leq1/2$, a quantity that could not be determined conclusively by previous purely analytical works and a quantity that can be measured experimentally.
Theory of Quantum Phase Transition in Iron-based Superconductors with Half-Dirac Nodal Electron Fermi Surface
Imam Makhfudz
Physics , 2012, DOI: 10.1016/j.aop.2015.05.005
Abstract: The quantum phase transition in iron-based superconductors with 'half-Dirac' node at the electron Fermi surface as a $T=0$ structural phase transition described in terms of nematic order is discussed. An effective low energy theory that describes half-Dirac nodal Fermions and their coupling to Ising nematic order that describes the phase transition is derived and analyzed using renormalization group (RG) study of the large-$N_f$ version of the theory. The inherent absence of Lorentz invariance of the theory leads to RG flow structure where the velocities $v_F$ and $v_\Delta$ at the paired half-Dirac nodes ($1\overline{1}$ and $2\overline{2}$) in general flow differently under RG, implying that the nodal electron gap is deformed and the $C_4$ symmetry is broken, explaining the structural (orthogonal to orthorhombic) phase transition at the quantum critical point (QCP). The theory is found to have Gaussian fixed point $\lambda^*=0, (v_{\Delta}/v_F)^*=0$ with stable flow lines toward it, suggesting a second order nematic phase transition. Interpreting the fermion-Ising nematic boson interaction as a decay process of nematic Ising order parameter scalar field fluctuations into half-Dirac nodal fermions, I find that the theory surprisingly behaves as systems with dynamical critical exponent $z = 1$, reflecting undamped quantum critical dynamics and emergent fully relativistic field theory arising from the non(fully)-relativistic field theory and is direct consequence of $(v_{\Delta}/v_F)^*=0$ fixed point. The nematic critical fluctuations lead to remarkable change to the spectral function peak where at a critical point $\lambda_c$, directly related to nematic QCP, the central spectral peak collapses and splits into satellite spectral peaks around nodal point. The vanishing of the zero modes density of states leads to the undamped $z=1$ quantum critical dynamics.
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