The use of circular and hybrid external skeletal fixation systems to repair open tibial fractures in large ruminants: a report of six clinical cases     

Shah  Mudasir Ahmad  Kumar  Rohit  Kinjavdekar  Prakash  Amarpal  Aithal  H. P.  Arif Basha  Mohammad  Majid  Asif 《Veterinary research communications》2022,46(2):563-575

Veterinary Research Communications - A prospective clinical study consisting of six bovines (200–300 kg body weight) undergoing open tibial fractures was carried out, to evaluate the...  相似文献   

Plant Growth-Promoting Rhizobacteria (Pgpr) Increase Yield,Growth And Nutrition Of Strawberry Under High-Calcareous Soil Conditions     

Muzaffer Ipek  Lutfi Pirlak  M. Figen Dönmez  Metin Turan  Fikrettin Sahin 《Journal of plant nutrition》2014,37(7):990-1001

Plant growth promoting effects of Alcaligenes 637Ca, Staphylococcus MFDCa-1, MFDCa-2, Agrobacterium A18, Pantoea FF1 and Bacillus M3 were tested on strawberry cv. ‘Aromas’ based on yield, number, and weight of fruit, leaf area, vitamin C, total soluble solids (TSS), acidity and ionic composition of leaves under calcareous soil conditions. The results demonstrated that all of bacterial treatments significantly affected all parameters tested. The best result was obtained from 637Ca treatment, which significantly increased fruit yield, number and weight about 47.5, 34.7, and 9.4%, respectively, compared to control. Except for magnesium (Mg) and zinc (Zn) in the leaf, the concentrations of all plant tissue nutrients [nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), iron (Fe), copper (Cu), manganese (Mn), boron (B)] were significantly increased by bacterial treatments tested. The data in the present study showed that all bacterial treatments including Alcaligenes 637Ca, Staphylococcus MFDCa-1, MFDCa-2, Agrobacterium A18, Pantoea FF1, and Bacillus M3 to strawberry plants can ameliorative the deleterious effect of high lime on fruit yield, growth and nutrition. These results suggested that plant growth-promoting Rhizobacteria (PGPR) treatments could be offer an economic and simple means to increased plant resistance for high calcareous soil conditions.  相似文献   

Effect of injection on bed shear stress and turbulence characteristics in a closed conduit flow     

Jewel  Arif  Fujisawa  Kazunori  Murakami  Akira 《Paddy and Water Environment》2022,20(4):467-482

Bed shear stress and turbulence quantities are important parameters to understand sediment erosion, transport, and hydraulic processes in most hydraulic studies. An experimental investigation was conducted to understand the effect of injection on the bed shear stress and turbulence characteristics of flows during low sediment transport rate in a closed conduit, which is similar in construction to the erosion function apparatus. In particular, the effect of injection on the bed shear stress, mean velocity profiles, turbulence intensities, Reynolds shear stress, and higher-order moments of the closed conduit flows in the seepage zone as well as at the upstream edge of the seepage zone was examined. The instantaneous velocities were measured using two-dimensional particle image velocimetry (PIV) to evaluate the turbulence structure in both the seepage zone and at the upstream edge of the seepage zone. The bed shear stress estimated by the Reynolds shear stress approach was found to be more appropriate than that estimated by the usual logarithmic law approach. However, a spatial fluctuation in the bed shear stress was noticed as the injection intensity was increased. Injection was found to decrease the velocity near the bed and to increase the velocity near the center of the conduit in comparison to the no-seepage condition in both zones. The injection resulted in more of a decrease in bed stability in the seepage zone in comparison to the upstream edge of the seepage zone as the injection intensities were increased. The introduction of injection increased the magnitudes of the various turbulence parameters in comparison to the no-seepage condition in the seepage zone. The effect of injection was not only visible in the near-bed region, but in both zones as the water depth (measured from top of the sediment surface) increased.

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Genetic algorithms for the sequential irrigation scheduling problem   总被引：1，自引：0，他引：1  

Arif A. Anwar  Zia Ul Haq 《Irrigation Science》2013,31(4):815-829

A sequential irrigation scheduling problem is the problem of preparing a schedule to sequentially service a set of water users. This problem has an analogy with the classical single machine earliness/tardiness scheduling problem in operations research. In previously published work, integer program and heuristics were used to solve sequential irrigation scheduling problems; however, such scheduling problems belong to a class of combinatorial optimization problems known to be computationally demanding (NP-hard). This is widely reported in operations research. Hence, integer program can only be used to solve relatively small problems usually in a research environment where considerable computational resources and time can be allocated to solve a single schedule. For practical applications, metaheuristics such as genetic algorithms (GA), simulated annealing, or tabu search methods need to be used. These need to be formulated carefully and tested thoroughly. The current research is to explore the potential of GA to solve the sequential irrigation scheduling problems. Four GA models are presented that model four different sequential irrigation scenarios. The GA models are tested extensively for a range of problem sizes, and the solution quality is compared against solutions from integer programs and heuristics. The GA is applied to the practical engineering problem of scheduling water scheduling to 94 water users.  相似文献   

Occurrence of potato mop-top virus in Northwest of Pakistan     

Muhammad Arif  Murad Ali  Anayatur Rehman  Muhammad Fahim 《European journal of plant pathology / European Foundation for Plant Pathology》2013,137(4):787-796

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New plant hosts for group 16SrII, 'Candidatus Phytoplasma aurantifolia', in India     

Y. Arocha  A. Singh  M. Pandey  A. N. Tripathi  B. Chandra  S. K. Shukla  Y. Singh  A. Kumar  R. K. Srivastava  N. W. Zaidi  M. Arif  S. Narwal  A. K. Tewari  M. K. Gupta  P. D. Nath  R. Rabindran  S. K. Khirbat  A. S. Byadgi  G. Singh  E. Boa 《Plant pathology》2009,58(2):391-391

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Comparison of various potting media for their influence on nutrients supply,germination, and growth of muskmelon (cucumis melo L.) seedlings     

Ghulam Mustafa  Muhammad Arif Ali  Muhammad Abid  Sajid Masood  Niaz Ahmad  Muhammad Aamer 《Compost science & utilization》2016,24(1):61-71

Peat moss is used as potting mix for growing muskmelon (Cucumis melo L.) seedlings. However, it is not economical for most of the farmers in developing countries. The objectives of the present study were to compare various sources of composts as substitutes for peat moss, evaluate their physicochemical properties, and their effects on germination and growth of muskmelon (Cucumis melo L.) seedlings under greenhouse conditions. The treatments included pure peat moss (control), and composts prepared from guar (Cyammopsis tetragonoloba L.), jantar (Sesbania aculeate L.), and wheat (Triticum aestivum L) straw, at three air-filled porosity (AFP) levels (10, 15, and 20%) and rice (Oryza sativa) hulls at 10% AFP level. The second factor was the addition and devoid of nitrogen (N), phosphorus (P), and potassium (K) fertilizers. The addition of fertilizers in all potting media at 10% AFP level showed a small increase in total nitrogen, extractable phosphorus, and potassium. In the guar and jantar compost at 10% AFP, the values of total N (92.43 and 85.32%), extractable P (68.13 and 76.65%), and K (63.33 and 49%) were higher than in peat moss. It is concluded that composts of guar, jantar, wheat straw, and rice hulls at 10% AFP level can be used as a substitute of peat moss for growing muskmelon seedlings, but the addition of N, P, and K fertilizers is required in wheat straw and rice hulls compost for better nutrition of muskmelon seedlings.  相似文献   

Kinetics study on a novel natural inhibitor of alpha-chymotrypsin     

Ahmad VU  Lodhi MA  Abbasi MA  Choudhary MI 《Fitoterapia》2008,79(7-8):505-508

The mechanism of inhibition of alpha-chymotrypsin by benzoylsalireposide (1), a phenolic glycoside isolated from Symplocos racemosa, was investigated. Lineweaver-Burk and Dixon plots and their secondary replots showed that 1 was a non-competitive inhibitor of this enzyme with the Ki value of 29.60 microM.  相似文献   

Village Common Forest Management in Komolchori,Chittagong Hill Tracts,Bangladesh: An Example of Community Based Natural Resources Management     

Md. Arif Chowdhury  Fatima-Tuz- Zahra  Md. Farhadur Rahman  Kamrul Islam 《Small-Scale Forestry》2018,17(4):535-553

Chittagong Hill Tracts (CHTs) in Bangladesh covers about 50% of the country’s natural forest resources, providing sources of food, fuel-wood, medicinal plants, timber and water supply to the ethnic communities living in the area. The ethnic communities in CHTs have been managing a small patch of forest known as a village common forest (VCF) adjacent to their village following a community based forest management approach. Taking a case study of Komolchori VCF, this study examined dependency of community people on VCF resources, their conservation-related attitudes and awareness, indigenous management, and forest phyto-sociological structure. A survey and focus group discussions were conducted among the settlers and non-settlers in Thana Chandra para and Jaduram para villages of the Komolchori VCF. Key informant interviews were conducted with two non-government organizations (NGOs) and the headman in the study area. To assess phyto-sociological structure of vegetation, 25 quadrats (10 m?×?10 m) were laid out randomly. Results revealed that non-settlers were more inclined towards VCF conservation and women played a crucial role as they were directly involved in forest products and water collection. Soil erosion caused by shifting cultivation has made community people more aware of forest degradation. Training program provided by NGOs on different horticultural techniques and a “Saving-Credit program” improved livelihood conditions and reduced pressures on VCF resources. Locally devised traditional rules guide the community people to manage the VCF sustainably. The vegetation survey showed that the density of Komolchori VCF was 1420 trees/ha with a basal area of 27.98 m²/ha. The Shannon–Weiner index, species diversity index and index of dominance in the study area were 2.91, 0.62, 0.09, respectively.  相似文献   

Gross Measurements of the Digestive Tract and Visceral Organs of Addax Antelope (Addax nasomaculatus) Following a Concentrate or Forage Feeding Regime          下载免费PDF全文

S. A. Tahas  O. Martin Jurado  S. Hammer  A. Arif  S. Reese  J.‐M. Hatt  M. Clauss 《Anatomia, histologia, embryologia》2017,46(3):282-293

Differences in macroscopic measurements of the gastrointestinal tract have been hypothesized to correlate with the browser–grazer continuum in the natural diet of ruminants. However, to what extent these characteristics represent species‐specific traits, or respond to the actually ingested diet, remains to be investigated. Twelve surplus addax antelope (Addax nasomaculatus) were divided into two groups and fed, for 3 months, either their usual diet, consisting of a concentrate feed with a limited amount of hay, or a diet of unlimited hay only. After culling, macroscopic measurements were compared between groups. The macroscopic anatomy of the addax showed many characteristics considered typical for grazing or ‘cattle‐type’ ruminants. While both diet groups had mesenteric, pericardial and perirenal adipose tissue, these depots were subjectively more pronounced in concentrate‐fed animals. Hay‐fed animals had significantly heavier filled forestomach compartments, with corresponding significantly longer linear measurements. Masseter muscles and the surface of first‐order omasal leaves were significantly more prominent in hay‐fed animals, reflecting possible adaptations to overcome resistance of grass forage and to reabsorb fluid from increased rumination, but differences were not as distinct as reported between ‘cattle‐type’ and ‘moose‐type’ ruminants. Some measurements such as reticular crests and empty foregut mass remained stable between groups, indicating possibly genetically pre‐defined characteristics less prone to change in adult life. The results emphasize the adaptability of ruminant digestive tract anatomy in adult animals even after a short period of time, but also suggest limits to this adaptability that reveals a species‐specific anatomy regardless of the diet actually consumed.  相似文献