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Search Results: 1 - 10 of 331924 matches for " Muhammad S. Kalhoro "
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Facile Synthesis, Characterization and Catalytic Function of Gelatin Stabilized Gold Nanoparticles
Zulfiqar A. Tagar,Sirajuddin,Najma Memon,Muhammad S. Kalhoro
Pakistan Journal of Analytical and Environmental Chemistry , 2012,
Abstract: In the present investigation, we report a new one phase, one pot method for synthesis of 3.5 ± 0.7 nm average sized gelatin capped gold nano particles (Gel-AuNPs) using strong reductant NaBH4 in aqueous system at room temperature. Size controlled Gel-AuNPs were characterized by UV-Visible, STEM, XRD, DLS and FT-IR. Spherical Gel-AuNPs showed excellent catalytic activity for reduction of three differently charged dyes eosin B (EB), methylene blue (MB) and rose bengal (RB) in the presence of NaBH4. The study revealed that 100% reduction of EB, MB and RB dyes was carried out in just 150 sec. The developed catalyst was easy to recover and capable to be reused three times. The process of reduction rate and kinetics of dyes was monitored using UV-Visible spectrophotometer. A plot of lnC Vs time (sec) showed that reaction follows the first order kinetics. Rate constant (K) was determined for EB, MB and RB reduction at 10 μM, which was found as 2.735 x10-2 sec-1, 2.738 x 10-2 sec-1 and 2.55 x 10-2 sec-1, respectively. The study revealed that catalytic reduction of dyes by Gel-AuNPs in aqueous medium is environmental friendly in terms of recovery of catalyst, is exceptionally fast and hence extremely economical.
Effect of Salts Stress on the Growth and Yield of Wheat (Triticum aestivum L.)  [PDF]
Niaz Ahmed Kalhoro, Inayatullah Rajpar, Shahmir Ali Kalhoro, Amjad Ali, Sajjad Raza, Muneer Ahmed, Fahad Ali Kalhoro, Muhammad Ramzan, Fazli Wahid
American Journal of Plant Sciences (AJPS) , 2016, DOI: 10.4236/ajps.2016.715199
Abstract: In order to study the effect of salts stress on the growth and yield of wheat (cv. Inqalab), a pot experiment was conducted in the wire-house of the Department of Soil Science, Sindh Agriculture University Tando Jam. The soil was artificially salinized to a range of salinity levels i.e . EC 2.16, 4.0, 6.0, 8.0 and 10.0 dS·m-1 with different salts (MgCl2 + CaCl2 + Na2SO4). The salinized soil used for the experiment was sandy clay in texture, alkaline in reaction (pH > 7.0) and moderate in organic matter (0.95%) content. The results showed that with increasing salinity there was an increase in the ECe, Na+, Ca2+, Mg2+ and Cl- and decrease in the K+, SAR and ESP values of the soil Increasing salinity, progressively decreased plant height, spike length, number of spikelets spike-1 1000 grain weight and yield (straw and grain). Adverse effects of salts on plants were associated with the accumulation of less K+ and more Na+ and Cl- in their flag leaf sap, grains and straw. This resulted in lower K+:5Na+ ratio in flag leaf sap, grains and straw of wheat plants. These results indicated that the effects of salts stress were greater at 10 than at 8, 6 and 4 EC dS·m-1.
Factors Affecting the Adoption of Organic Farming in Peshawar-Pakistan  [PDF]
Arif Ullah, Syed Noor Muhammad Shah, Amjad Ali, Rubina Naz, Amanullah Mahar, Shahmir Ali Kalhoro
Agricultural Sciences (AS) , 2015, DOI: 10.4236/as.2015.66057
This study was conducted to investigate the factors affecting the adoption of organic farming in Peshawar-Pakistan. A total of 100 respondents were randomly selected from the four different cultivated areas of Peshawar, namely Palosi, Regi, Ternab and Pushtakhara. Binary logistic re-gression was used in this study to categorize the organic farming into adoption and non-adoption. The purpose of this model was to check the event probability for a categorical response variable with two outcomes. The results of the binary logistic show that factors affecting adoption of organic farming have a significant effect on the farmer productivity. Moreover, cost, productivity, profitability, compatibility and efficiency have a positive and significant effect. Thus, it is obvious that adopting organic farming not only to increase the farmer income but also to protect environmental pollution by avoiding the toxic chemical and fertilizer. Finally, we suggest that government agencies, extension and research institution should play a vital role to strengthen the awareness and advantages of organic farming.
Use of Polymerase Chain Reaction for Identification of the Pathogen and Management of Potato Soft Rot with Zinc Application  [PDF]
Ayesha Bibi, Muhammad Junaid, Musharaf Ahmad, Amjad Ali, Fazli Wahid, Rubina Naz, Arif Ullah, Amanullah Mahar, Shahmir Ali Kalhoro
American Journal of Plant Sciences (AJPS) , 2015, DOI: 10.4236/ajps.2015.68118
Abstract: Effect of different Zinc doses was investigated against Erwinia carotovora ssp. atroseptica, the potato blackleg/soft rot causing organism, during 2009 and 2010 in Department of Plant Pathology and Institute of Biotechnology and Genetic Engineering, The University of Agriculture, Peshawar-Pakistan. Out of 200 tested samples, 21 of them were proved to be Eca. However, these tentative Eca isolates showed some characteristics which were unexpected for Eca. We, therefore, decided to perform Polymerase Chain Reaction using Eca-specific primers, Eca1F and Eca2R for confirm identification. For disease management, at the time of sowing, pots containing 5 kg sterilized soil were applied with Zinc in four different treatments i.e. 8 mg, 10 mg, 12 mg and 14 mg along with one control. Results indicated that 12 mg (4.8 kg Zn ha-1) were better doses in controlling the disease up to 73% and increasing the yield up to 117% as compared to control plants.
Effect of Boron Soil Application on Nutrients Efficiency in Tobacco Leaf  [PDF]
Fayaz Ali, Amjad Ali, Hameed Gul, Muhammad Sharif, Arooj Sadiq, Ansaar Ahmed, Arif Ullah, Amanullah Mahar, Shahmir Ali Kalhoro
American Journal of Plant Sciences (AJPS) , 2015, DOI: 10.4236/ajps.2015.69139
Abstract: The present study was based on the general hypothesis that boron may affect the accumulation and utilization of other nutrients in plant. For this purpose a field experiment was carried out to find out the influence of boron on the different nutrients content in FCV tobacco (Nicotiana tabacum L.) at TRS Khan Garhi, Mardan, during 2010-2011. Two varieties TM-2008 and Speight G-28 were tested and six levels of boron (0, 0.5, 1, 2, 3 and 5 kg·ha-1) were applied in the form of boric acid, in randomized complete block design in split plot arrangement and replicated thrice. Results indicated that the yield of tobacco crop increased with 1 kg·B·ha-1 and then decreased sequence wise in both varieties. N and P concentrations were significantly affected by applied boron. Similarly, potassium was increased which is a good indication for a better quality of tobacco crop. Application of boron significantly increased the concentrations of boron nutrients ratios such as K/B; Cl/B and Mn/Fe were decreased while K/Cl and Zn/Cu ratios were increased at lower boron concentrations but decreased at higher concentrations of boron. The fertilizer use efficiency of both the cultivars showed similar trend; however, Speight G-28 was more efficient than TM-2008 in boron accumulation. The overall results revealed that the application of boron should be encouraged for balancing nutrients concentration, thus getting higher yield in the prevailing conditions.
Pakistan Veterinary Journal , 2007,
Abstract: The comparative studies of the susceptible and resistant snails of Biomphalaria glabrata mass exposed to miracidia of Schistosoma mansoni were conducted from 1 to10 days post-exposure (DPE). Histological sections of 50 susceptible and 50 resistant snails revealed that many single, multiple, mature and migratory mother sporocysts were observed in the foot, head, lip, tentacle, mantle, anus, buccal mass, neck, kidney, oesophagus, respiratory epithelium of the lung and pericardial cavity of the heart of susceptible snails. Whereas, few single and multiple mother sporocysts were visible in the earlier mentioned first eight organs of the resistant snails throughout infection period. Single mother sporocyst was located in the foot, head, lip and tentacles of susceptible snails at 1-2 DPE. At 3 DPE, multiple mother sporocysts were found in the above organs, and very few of them were observed in the mantle and muscles of the anus of these snails. In the resistant snails, such mother sporocysts were only found in the tentacle and columellar muscles at 9 DPE. At few mother sporocysts reached the buccal mass of the susceptible snails at 4 DPE. Increasing in the number of the single and multiple mother sporocysts were observed in the foot, head and tentacles, whereas a few of them were also visible in the neck and kidney of these snails at 5 DPE. Most of the mother sporocysts grew further in the foot, head, tentacles, mantle and kidney and developed into the mature form at 6 DPE onwards. At 8 DPE, some mature mother sporocysts were observed in the above mentioned organs and oesophagus of these snails. In the foot, head, lip and tentacle at 8 DPE, tegument of mature mother sporocyst was ruptured due to the increase number, and size of the embryos, and a few of them migrated towards the deeper tissues of the organs of the body of the snails. At 9 and 10 DPE, most of the above types of mother sporocyst remained in the earlier mentioned organs, very few were also found in the pericardial cavity of the heart and respiratory epithelium of the lung of the susceptible snails. Chi-square test results showed highly significant differences in the total infected snails with mother sporocyst in the various organs of the susceptible and resistant snails.
7-{[2-(4-Hydroxyphenyl)methylidene]amino}-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino}-3-{[(2-methyl-5,6-dioxo-1,2,5,6-tetrahydro-1,2,4-triazin-3-yl)sulfanyl]methyl}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
Ghulam Fareed,Mahboob A. Kalhoro,Muhammad A. Versiani,Nighat Afza,Nazia Fareed
Molbank , 2012, DOI: 10.3390/M756
Abstract: Novel 7-{[2-(4-hydroxyphenyl)methylidene]amino}-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino}-3-{[(2-methyl-5,6-dioxo-1,2,5,6-tetrahydro-1,2,4-triazin-3-yl)sulfanyl]methyl}-8-oxo-5-thia-1azabicyclo [4.2.0]oct-2-ene-2-carboxylic acid was prepared by condensation of ceftriaxone disodium ( 1) with 4-hydroxybenzaldehyde ( 2) in ethanol under reflux conditions for 3–4 h. The structure of synthesized compound was elucidated using LCMS, 1H-NMR, and CHN techniques.
Performance of Maize in Intercropping System with Soybean under Different Planting Patterns and Nitrogen Levels
Muneer Ahmed Panhwar,Fida Hussain Memon,Mumtaz Ali Kalhoro,Muhammad Ismail Soomro
Journal of Applied Sciences , 2004,
Abstract: To study the performance of maize in intercropping system with soybean under different planting patterns and nitrogen levels an experiment was carried out at student`s experimental farm, Sindh Agriculture University Tandojam during kharif season 1990. The results indicated that plant height, number of leaves per plant, 1000 grain weight of maize increased with an increase in nitrogen levels. Maximum grain yield of 1692 kg ha 1 was recorded from highest dose (120 kg N ha 1). Intercropping of soybean in maize rows did not show any adverse effect on maize plant height, number of leaves, 1000 grain weight as well as grain yield of maize. However, maize under mono- culture recorded greater grain yield ha 1. The results further revealed that Soybean planted alone gave better performance in respect of seed yield ha 1 and yield contributing parameters. While seed yield and other yield contributing parameters of soybean were significantly affected in intercrop treatments due to competition with main crop.
Knowledge Driven Paper Recommendation Using Heterogeneous Network Embedding Method  [PDF]
Irfan Ahmed, Zubair Ahmed Kalhoro
Journal of Computer and Communications (JCC) , 2018, DOI: 10.4236/jcc.2018.612016
Abstract: We search a variety of things over the Internet in our daily lives, and numerous search engines are available to get us more relevant results. With the rapid technological advancement, the internet has become a major source of obtaining information. Further, the advent of the Web2.0 era has led to an increased interaction between the user and the website. It has become challenging to provide information to users as per their interests. Because of copyright restrictions, most of existing research studies are confronting the lack of availability of the content of candidates recommending articles. The content of such articles is not always available freely and hence leads to inadequate recommendation results. Moreover, various research studies base recommendation on user profiles. Therefore, their recommendation needs a significant number of registered users in the system. In recent years, research work proves that Knowledge graphs have yielded better in generating quality recommendation results and alleviating sparsity and cold start issues. Network embedding techniques try to learn high quality feature vectors automatically from network structures, enabling vector-based measurers of node relatedness. Keeping the strength of Network embedding techniques, the proposed citation-based recommendation approach makes use of heterogeneous network embedding in generating recommendation results. The novelty of this paper is in exploiting the performance of a network embedding approach i.e., matapath2vec to generate paper recommendations. Unlike existing approaches, the proposed method has the capability of learning low-dimensional latent representation of nodes (i.e., research papers) in a network. We apply metapath2vec on a knowledge network built by the ACL Anthology Network (all about NLP) and use the node relatedness to generate item (research article) recommendations.
Study the Effect of Flock Size on Production and Behaviour During Growth Period of Broiler
Muhammad Ismail Rind,Nawaz Ali Shahani,Rahmatullah Rind,Amir Bukhsh Kalhoro,Muhammad Misri Rind,Allah Nawaz Rind
Journal of Animal and Veterinary Advances , 2012,
Abstract: An experiment was carriedout to examine the effect of group size on production and behaviour of broiler. 600 day-old broiler were purchased and brooded for two weeks and later randomly divided into three groups i.e. A (150), B (200) and C (250) at the beginning of 3rd week of age and housed at Poultry Experiment Station, Department of Poultry Husbandry, Tando Jam upto the completion of 6 weeks. The groups of broiler were housed under similar conditions and offered pellet feeds (iso-caloric and iso-nitrogenous). The result show that feed intake of broiler was different significantly between groups A (3.294), B (3.246) and C (3.208) kg/b, respectively. Average live body weight of broiler were significantly increased with the progress of period i.e. W3 to W6 (P<0.01), but the weights were not significantly different i.e. 1.846, 1.876 and 1.880 kg/b in groups A, B and C, respectively. Social behaviour results show that the average agreesion instigated by broiler under A, B and C groups were 0.6, 0.6 and 1.2 incidences/24 hrs/b (P>0.05). Average aggression target of broiler under group A, B, and C were 0.5, 0.9 and 1.0 incidences/24 hrs/b (P<0.01). Average aggression avoidance, flying and playing behaviours of broiler groups were not different significantly (P>0.05). Feed conversion ratios in groups A, B and C was 2.022, 1.963 and 1.944 and net profit earned was Rs. 14.250, 16.068 and 16.548 per broiler for A, B and C groups, respectively.
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