AMA, Agricultural Mechanization in Asia, Africa and Latin America
AMA, Agricultural Mechanization in Asia, Africa and Latin America (AMA) (issn: 00845841) is a peer reviewed journal first published online after indexing scopus in 1982. AMA is published by Farm Machinery Industrial Research Corp and Shin-Norinsha Co. AMA publishes every subjects of general engineering and agricultural engineering.
WOS Indexed (2025)
27 Nov 2025 (Vol - 56 , Issue- 11 )
30 Nov 2025 (Vol - 56 , Issue 11 )
Aim and Scope :
AMA, Agricultural Mechanization in Asia, Africa and Latin America
AMA, Agricultural Mechanization in Asia, Africa and Latin America (ISSN: 00845841) is a peer-reviewed journal. The journal covers Agricultural and Biological Sciences and all sort of engineering topic. the journal's scopes are in the following fields but not limited to:
Agricultural and Biological Sciences
Electrical Engineering and Telecommunication
Electronic Engineering
Computer Science & Engineering
Civil and architectural engineering
Mechanical and Materials Engineering
Transportation Engineering
Industrial Engineering
Industrial and Commercial Design
Information Engineering
Chemical Engineering
Food Engineering
Anti-cancer effect of paclitaxel on canine mammary gland tumour in clinical cases of dogs.
Canine mammary gland tumors (CMGT) are among the most prevalent neoplasms in female dogs, with a higher incidence observed in those not spayed at an early age. Given this context, clinical cases of dogs with mammary tumors presenting at the Small Animal Clinics of Madras Veterinary College, Chennai, were studied to evaluate the anticancer effect of paclitaxel on CMGT in clinical cases. A total of forty-three CMGT-positive dogs were identified and underwent tumor excision following a standard surgical protocol. Tumor type and grade were confirmed based on established selection criteria. Of these, ten dogs were included in the study and received paclitaxel chemotherapy. Pre- and post-surgical levels of cancer-associated serum biomarkers, including CA15.3, CEA, COX-2, and HER-2, were assessed. Elevated levels of these biomarkers were noted in pre-surgical samples, while marked reductions were observed on days 21, 42, and 63 post-chemotherapy, suggesting a lack of metastasis and non-recurrence of mammary cancer. Clinical examinations confirmed the absence of cancer recurrence in the treated dogs up to day 120. In post-surgical cases of CMGT, paclitaxel was effective in preventing recurrence and metastasis of mammary cancer. However, further research using induced cancer models in animals, as well as clinical studies involving larger sample sizes and extended observation periods, is necessary to confirm paclitaxel's efficacy in CMGT-positive female dogs.
Use of GIS for mapping sensitivity to erosion using the MEDALUS approach: Application in the Boussaada sub- watershed, Algeria.
The sub-watershed of the Oued Bousaâda, covering an area of 2938.36 km², is part of the Hodna watershed, located southwest of Hodna in the high plateaus, and it is characterized by a semi-arid climate and the precipitation is highly irregular. These rains are associated with high variability. Soil erosion poses a serious environmental, agricultural, and social problem that affects and threatens this region. It is necessary to identify the most erosion-sensitive areas in this sub-watershed in order to determine priorities for mitigation actions. The objective of this study is to assess soil vulnerability to water erosion, develop a set of thematic maps (Vegetation Quality Map, Soil Quality Map, etc.), and create a database (DB) using an approach based on the MEDALUS (Mediterranean Desertification and Land Use) model and Geographic Information System (GIS). This mapping model is a tool intended to assist decision-makers in better managing water and soil resources, taking into account the expectations and needs of the rural population. By combining remote sensing with the analysis of factors known to affect the erosion process, such as climate, vegetation, soil, and demographics, a erosion sensitivity map has been created. The erosion risk mapping revealed that more than 75 % of the studied area showed high vulnerability to erosion. This map will be an essential tool for the socio-economic infrastructures of the region.
Antibacterial Efficacy and Toxicity Profiling of Some Centaurea Species from Algeria
This study evaluates the antibacterial activity of six nativeCentaurea species: C. sphaerocephala, C. tougourensis, C. napifolia, C. fragilis, C. papposa, C. solstitialis, and C. dimorpha. Three types of extracts: dichloromethane, ethyl acetate, and n-butanol, were tested for their ability to inhibit bacterial growth using the solid medium disk diffusion method at four different concentrations. The results confirm that extracts, particularly those derived from ethyl acetate, exhibit significant antibacterial activity against both Gram-positive and Gram-negative bacteria. Notably, C. papposa and C. napifolia demonstrated high efficacy against Staphylococcus aureus and Pseudomonas aeruginosa, suggesting their potential as natural antimicrobial agents. Additionally, the butanolic extract of C. papposa displayed no significant acute toxicity at a dose of 2000 mg/kg, indicating safety for further pharmacological research. This aligns with existing literature on Centaurea species, reinforcing their low toxicity potential in therapeutic applications. Histological findings revealed notable effects of the butanolic extract on the liver and lungs, highlighting the need for further investigation into the extract's safety profile and mechanisms of action. Future studies should focus on identifying the specific bioactive compounds responsible for the observed effects, enhancing our understanding of their therapeutic implications and ensuring safety and efficacy in clinical contexts.
Dose standardization of some common fungicides against Sclerotinia sclerotiorum (Lib.) de Bary
Sclerotinia sclerotiorum (Lib.) de Bary is one of the most ubiquitous pathogens affecting a wide range of vegetable crops and brinjal is one amongst the major hosts. The present investigation is carried out for evaluation of the different fungitoxicants under in-vitro conditions against the white rot pathogen. Six fungicides namely Copper oxychloride 50% WP, Metalaxyl 4% + Mancozeb 64% WP, Carbendazim 12% + Mancozeb 63% WP, Carbendazim 50% WP, Mancozeb 75% WP and Propiconazole 25% EC were evaluated at 50, 100, 200 and 500 ppm. The results portray that the mycelial growth was totally inhibited by Carbendazim 12% + Mancozeb 63% WP at 50ppm, 100 ppm, 200 ppm and 500 ppm. Carbendazim 50% WP completely inhibited the mycelial growth at 100 ppm, 200 ppm and 500 ppm, Mancozeb 75% WP at 200 ppm and 500 ppm was at par with Propiconazole 25% EC and Metalaxyl 4% + Mancozeb 64% WP completely inhibited the mycelial growth at 500 ppm. At above mentioned concentrations these fungicides also inhibited sclerotial formation which can be effectively used for control of pathogen in the field conditions by integrating in different disease management practices.
Chemical constituents, antioxidant, anticholinesterase and antimicrobial activities of the essential oil and methanol extract of Centaurea sphaerocephalaL. aerial parts from Algeria.
Essential oils were obtained by separate hydrodistillation from arial parts of Centaurea sphaerocephala L. (Compositae). and were analyzed by means of gas chromatography (GC) and gas chromatography–mass spectrometry (GC-MS), The main constituent of the essential oil from the aerial parts was caryophyllene oxide (18.3%), followed by benzaldheyde (16.10%), spathulenol (07.5%), humulene oxide II (07.5%), phenylacetaldehyde (05.3%), and α-terpineol (05.2%). As for the study of the methanol extract and the essential oils of this plant, a multitude of test systems were used, namely: DPPH free radical scavenging assay, CUPRAC cupric reducing antioxidant capacity, β-Carotene-linoleic acid test system and ABTS cation radical scavenging assay. The MeOH extract of aerial parts exhibited a strong antioxidant activity evidenced by the β-carotene-linoleic acid test system, the IC50 values were 43.548± 0.357µg/ml. In the case ABTS cation radical scavenging assay, with the IC50 values were 76.434 ± 2.233 µg/ml, while in the DPPH test the IC50 values were 139± 0.622 µg/ml, while in the CUPRAC test the IC50 values were 159.87 ± 2.03µg/ml,. The essential oil extract of aerial parts showed 09.12 ℅ inhibitory activity against butyrylcholinesterase at 200 µg/mL. The highest antibacterial activity was evidenced for the aerial parts MeOH extracts, with inhibition zone medium diameters of 16.33±1.00 mm against Staphyloccocus aureus ATCC25923 at 16 mg/ml and 14±1.00 mm against Escherichia coli ATCC25922 at 16 mg/ml. This analysis constitutes a pioneer study of composition of the essential oil obtained from the arial parts of Centaurea sphaerocephala L. growing in Algeria.