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Search Results: 1 - 10 of 325547 matches for " S Sajjad "
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Timothy Hay Business in Alberta: Business Models and Supply Chain Issues  [PDF]
Sajjad Zahir
American Journal of Industrial and Business Management (AJIBM) , 2013, DOI: 10.4236/ajibm.2013.32021
Abstract:

This paper presents the business model and supply chain issues of Timothy hay business in Southern Alberta. Production, processing, marketing and distribution aspects of the business are described. Research was conducted using case-based field studies involving Timothy farmers, hay plant operators and forage research scientists. It is recommended that further research in raising yield of hay production and a better management of freight and exchange rate fluctuations will be greatly beneficial to this sector of business.

Synthesis and Modification of Carboxylated Multi Wall Nanotubes with Atenolol  [PDF]
Sajjad Sedaghat
Soft Nanoscience Letters (SNL) , 2014, DOI: 10.4236/snl.2014.43011
Abstract:

In this paper functionalized multiwall carbon nanotubes (FMWCNT) were modified using atenolol as a class of drugs that were used in cardiovascular diseases containing reactable nitrogen, which could attach chemically to functionalized MWCNT. This product was characterized by Fourier transform infrared spectroscopy (FT-IR) and Raman spectroscopy. These spectrums proved the existence of nitrogen atoms of amide due to new functional group. The morphology were also determined by scanning electron microscopy (SEM) and showed that this product was synthesized in the nanometer dimension. Thermal gravimetery (TGA) analysis was also used to evaluate thermal properties.

Aggregation of Priorities in Multi-Criteria Decision Analysis (MCDA): Connecting Decision Spaces in the Cognitive Space  [PDF]
Sajjad Zahir
American Journal of Operations Research (AJOR) , 2016, DOI: 10.4236/ajor.2016.64030
Abstract: In Multi-Criteria Decision Analysis, the well-known weighted sum method for aggregating normalised relative priorities ignores the unit of scale that may vary across the criteria and thus causes rank reversals. A new aggregation rule that explicitly includes the norms of priority vectors is derived and shown as a remedy for it. An algorithmic procedure is presented to demonstrate how it can as well be used in the Analytic Hierarchy Process when norms of priority vectors are not readily available. Also, recursion relations connecting two decision spaces with added or deleted alternatives give an opportunity to extend the idea of connectivity to a new concept of cognitive space. Expanded analytic modelling embracing multiple decision spaces or scenarios may assist in detecting deficiencies in analytic models and also grasping the big picture in decision making.
Nuclear effects in Neutrino Nuclear Cross-sections
S. K. Singh,M. Sajjad Athar
Physics , 2007, DOI: 10.1063/1.2898947
Abstract: Nuclear effects in the quasielastic and inelastic scattering of neutrinos(antineutrinos) from nuclear targets have been studied. The calculations are done in the local density approximation which take into account the effect of nucleon motion as well as renormalisation of weak transition strengths in the nuclear medium. The inelastic reaction leading to production of pions is calculated in a $\Delta$ dominance model taking into account the renormalization of $\Delta$ properties in the nuclear medium.
Investigation on Tabriz University Teachers’ Experiences of the Ignored Curriculumin General Courses  [PDF]
Yousef Rezapour, Sajjad Purbaghban
Open Journal of Applied Sciences (OJAppS) , 2014, DOI: 10.4236/ojapps.2014.46035
Abstract: The ignored curriculum is one of important elements in the curriculum that the design of this concept has led to reduce a superficial look at measures to curriculum. Ignored curriculum not only in the design but also should be considered at the implementation level. The present study examined the experiences of teachers in general education from ignored curriculum in higher education and this study was done by qualitative research and its approach was interpretive phenomenology. In this regard, semi-structured interviews were conducted with twenty-six teachers of general education courses and the data obtained from these interviews were analyzed by using phenomenology of Smith. Three major themes from ignored curriculum, were found from the experience of teachers including 1) lack of attention to requirements which consists of three sub-categories: in attention to the needs of the learner, the needs and demands of everyday life and the needs of experts; 2) lack of attention to content; 3) run into problems involving the four sub-problems of teaching, evaluation time, space and assessment. The teachers during the training and implementing courses have gained a lot of experience from the ignored curriculum that had impact on their perception. Planners are familiar with academics experiences and identify ignored curriculum of general education courses and emphasized on how they understand the main goals of general education courses and made it meaningful and they had a main role in eliminating the flaws of this course, and enhance the effectiveness of them. In summary, the results obtained from the study were that general education courses, do not address the needs of learners. These requirements include of three sub-categories: inattention to the needs of the learner, routine needs and professionals. Also, courses have less attention to content. And there are problems such as difficulties in teaching this lesson, time, space and evaluation.
RETRACTED: Bioinspired Synthesis of Zinc Oxide Nanoparticle and its Combined Efficacy with Different Antibiotics against Multidrug Resistant Bacteria  [PDF]
Sana Ehsan, Muhammad Sajjad
Journal of Biomaterials and Nanobiotechnology (JBNB) , 2017, DOI: 10.4236/jbnb.2017.82011
Abstract:

Short Retraction Notice

Journal of Biomaterials and Nanobiotechnology (JBNB) does not meet author’s publication requirements.

This article has been retracted to straighten the academic record. In making this decision the Editorial Board follows COPE's Retraction Guidelines. Aim is to promote the circulation of scientific research by offering an ideal research publication platform with due consideration of internationally accepted standards on publication ethics. The Editorial Board would like to extend its sincere apologies for any inconvenience this retraction may have caused.

The full retraction notice in PDF is preceding the original paper which is marked \"RETRACTED\".

Neutral Current induced $\pi^0$ production and neutrino magnetic moment
Athar, M. Sajjad;Chauhan, S.;Singh, S. K.
High Energy Physics - Phenomenology , 2008, DOI: 10.1103/PhysRevD.78.037301
Abstract: We have studied the total cross section, $Q^2$, momentum and angular distributions for pions in the $\nu$($\bar \nu$) induced $\pi^0$ production from nucleons. The calculations have been done for the weak production induced by the neutral current in the standard model and the electromagnetic production induced by neutrino magnetic moment. It has been found that with the present experimental limits on the muon neutrino magnetic moment $\mu_{\nu_\mu}$, the electromagnetic contribution to the cross section for the $\pi^0$ production is small. The neutrino induced neutral current production of $\pi^{0}$, while giving an alternative method to study the magnetic moment of neutrino $\mu_{\nu_\mu}$, does not provide any improvement over the present experimental limit on $\mu_{\nu_\mu}$ from the observation of this process in future experiments at T2K and NO$\nu$A.
EFFECT OF GONADOTROPIN RELEASING HORMONE ON SEMEN CHARACTERISTICS IN NILI-RAVI BUFFALO BULLS
M. SAJJAD, S. ALI, S. AKHTER AND N. ULLAH1
Pakistan Veterinary Journal , 2007,
Abstract: The study was aimed at determining the effect of gonadotropin releasing hormone (GnRH) on semen characteristics in two Nili-Ravi buffalo bulls. The study was conducted in two phases. In the first phase comprising 4 weeks, the bulls were not given GnRH. In second phase comprising 4 weeks, the same bulls were given 2 ml GnRH at weekly intervals 12 hours prior to semen collection. Semen samples were collected at weekly intervals, and were evaluated for ejaculatory volume, sperm motility, sperm concentration, pH of semen and sperm abnormalities. Semen volume, sperm motility, sperm concentration and semen pH did not differ significantly in two phases of the experiment. However, sperm mid-piece and sperm tail abnormalities in phase II decreased (P<0.05) compared to phase I. In conclusion, GnRH treatment resulted in decreased sperm mid-piece and tail abnormalities in Nili-Ravi buffalo bulls.
Theoretical study of lepton events in the atmospheric neutrino experiments at SuperK
M. Sajjad Athar,S. Chauhan,S. K. Singh
Physics , 2009, DOI: 10.1140/epja/i2010-10908-0
Abstract: Super-Kamiokande has reported the results for the lepton events in the atmospheric neutrino experiment. These results have been presented for a 22.5kT water fiducial mass on an exposure of 1489 days, and the events are divided into sub-GeV, multi-GeV and PC events. We present a study of nuclear medium effects in the sub-GeV energy region of atmospheric neutrino events for the quasielastic scattering, incoherent and coherent pion production processes, as they give the most dominant contribution to the lepton events in this energy region. We have used the atmospheric neutrino flux given by Honda et al. These calculations have been done in the local density approximation. We take into account the effect of Pauli blocking, Fermi motion, Coulomb effect, renormalization of weak transition strengths in the nuclear medium in the case of the quasielastic reactions. The inelastic reactions leading to production of leptons along with pions is calculated in a $\Delta $- dominance model by taking into account the renormalization of $\Delta$ properties in the nuclear medium and the final state interaction effects of the outgoing pions with the residual nucleus. We present the results for the lepton events obtained in our model with and without nuclear medium effects, and compare them with the Monte Carlo predictions used in the simulation and the experimentally observed events reported by the Super-Kamiokande collaboration.
CC1$π^+$ to CCQE cross sections ratio at accelerator energies
M. Sajjad Athar,S. Chauhan,S. K. Singh
Physics , 2009, DOI: 10.1088/0954-3899/37/1/015005
Abstract: MiniBooNE and K2K collaborations have recently reported the ratio for the $\nu_\mu$ induced charge current 1$\pi^+$ production cross section to the charged current induced quasielastic lepton production cross section i.e. $R(E)=\frac{\sigma^{CC1\pi^+}}{\sigma^{CCQE}}$. In this paper we study, theoretically, in a local density approximation the effect of nuclear medium in charged current quasielastic(CCQE) and charged current one pion production(CC1$\pi^+$) processes for the $\nu_\mu$ induced reaction in nuclei. The theoretical results have been compared with the results of experimental observations by the MiniBooNE and K2K collaborations. The ratio R(E) for $\nu_\mu$ induced reaction in water for the proposed T2K experiment is also presented.
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