This study sought to investigate the relationship existing between laboratory facility availability and students’ academic performance in Biology across Secondary School in Ethiope East L.G.A., of Delta State, Nigeria. In the course of this study, three research questions were developed and three null hypotheses were formulated. The study used was delimited to senior secondary schools two (SSII) because it is at this stage students are being exposed to practical activities that require the usage of laboratory facilities and equipment. A descriptive survey design was used while the sample of the study was made up of one hundred and three (103) respondents. The study employed a questionnaire as an instrument to gather data.
The present study aims to estimate the avifaunal diversity in Hullathi section 0f Ranebennur wildlife sanctuary. The study revealed the occurrence of 104 species of birds in Hullathi section respectively. Among them Black-headed Ibis (Threskiornis melanocephalus), were listed in the near threatened category (IUCN, 2012). The result also showed that the agriculture land, wetland area and surrounding vegetation are favorable environmental conditions suitable for the migratory, resident as well as the threatened species of birds. These are protected under the provisions of schedule IV of Indian Wildlife Protection Act, 1972. The spotting of these threatened bird species highlights the importance of study area as an important feeding, staging and wintering ground for birds.
Most infectious diseases follow a seasonal cycle that allows germs to spread and infect humans. An abrupt climate change can promote infections in the winter. The study aims to determine winter disease prevalence in Narayanganj. To learn about seasonal illness risk factors, management, treatment, and other implications. People in Narayanganj city were interviewed using a self-designed English questionnaire. The questionnaire asked about demographics, education, socioeconomic level, winter sickness awareness, etc. Our of total 200 participant population male respondents were 59% and female 41%, among them the prevalence of diseases are allergy 59%, stomach flu 76%, common cold 345, influenza 17%, skin disease 11%, asthma 21%, croup 6% and sore throat 14% which is counted respectively of total surveyed participants number.
The widespread use of Artabotrys aurantiacus in traditional medicine for the quest for well-being aroused attention for its potential risk to human and animal health. This study points out the acute and sub-chronic toxicological profile of Artabotrys aurantiacus leaves aqueous extract. The extract was prepared following the traditional healer’s method and orally administered to Wistar rats at a single dose of 5000 mg/kg or 50, 100, 200 and 400 mg/kg/day for 45 days for acute and sub-chronic tests, respectively. In acute toxicity, no behavioral disorder was observed in treated animals as compared to the control. The lethal dose of 50 was estimated to be higher than 5000 mg/kg and the extract was noted as slightly toxic. Similarly, no significant change in body weight nor biochemical parameters were observed after 45 days of repeated dosing of the extract. Histological study revealed that all tested doses induced no damage to the liver and kidney as compared to control. These findings indicate that the use of Artabotrys aurantiacus leaves aqueous extract at tested doses is not associated with any toxic effect.
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The present study investigated mosquito species composition and phenotypic insecticide resistance profile to support decision-making in vector control in the Republic of Djibouti at the Horn of Africa. Adult mosquitoes were collected between December 2016 and December 2017 across 20 sentinel sites established in the 6 regions of the country using both Centers for Disease Control (CDC) miniature light traps and pyrethrum spray catches (PSC). Female mosquitoes were kept aside, for morphological identification to species by an expert entomologist using appropriate taxonomic keys by Gillies & Coetzee and Glick. Bioassays were also conducted in An. stephensi from Djibouti-ville against nine insecticides used in public health. A total number of 12,538 host-seeking mosquitoes belonging to four genera (Anopheles, Culex, Aedes, Uranotaenia) comprising 12 species were collected. Among these, A. gambiae S.L. and A. stephensi were the two major malaria vectors identified while secondary malaria vectors such as A. nili somalicus, A. dthali and A. azaniae were also collected. Culex quinquefasciatus was the most abundant mosquito species in the 6 regions. WHO susceptibility tests performed on A. stephensi population from Djibouti-ville showed resistance to pyrethroids, organophosphates, carbamates and DDT.
Archive of International Journal of Agronomy and Agricultural Research publish research papers, research article in Agronomy, Agriculture, Horticulture,
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Environmental pollution by heavy metals has become a serious problem in Jakarta Bay. Mobilization of heavy metals as a result of anthropogenic activities has caused the release of heavy metals into the environment, one of which is Pb. Several methods already used to clean up the environment from these kinds of contaminants, but most of them are costly and difficult to get optimum results. In addition heavy metal pollutans in the waters are very stable and tend to be persistent. Recently, bioaccumators is an effective and affordable technological solution used to extract or remove inactive metals and metal pollutants from contaminated soil and water. This technology is environmental friendly and potentially cost effective using bivalves. These study objectives to analyzed the Pb content of three species of Jakarta Bay bivalves. The results showed that Pb content in the Eastern and Western Season bivalve tissue was significantly lowest in P. viridis (0,166 ± 0,016μg/g dan 0,161 ± 0,155μg/g) compared the Pb concentration in A. antiquata (0,264 ± 0,015μg/g dan 0,247±0,044μg/g), and M. meretrix (0,270 ± 0,016μg/g dan 0,240 ± 0,053μg/g). In this study also showed that the concentration of heavy metal Pb in the bivalve shell of P. viridis was significantly lower than that of two species (A. antiquata and M. meretrix). Pb content in the Eastern Season bivalves did not significantly different from that in the Westerrn Season. This is caused by a weather anomaly where the rainy season occurs almos throughout year of 2020. The Pb content in the bivalves shell was significantly higher than in the body tissues. It is because Pb can replace calcium ions in the formation of animal bones or bivalve shells.
The present experiment was conducted to determine the ideal concentration of different plant growth regulators (BA, Kin, IBA, IAA, and NAA) for in vitro regeneration of Caladium bicolor using shoot tip explants. The work was designed in CRD with three replications. Shoot tip explants gave rise to multiple shoots when cultured on MS medium supplemented with different concentration of BA with IBA. The highest (90%) response of shoot multiplication was obtained in MS medium containing 0.25-1.0mg/L BA + 2.0-2.5mg/L IBA.
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Tehua Amoa Armist, Kouman Abenan Manou Natacha, Koffi Yao Fulgence, Alloue-Boraud Waze Aimée Mireille, and Kone Daouda from the different institute of the Côte d’Ivoire, wrote a research paper about Combatting Xanthomonas citri in Cashew: Biopesticide Formulations in Cote D’ivoire, entitled Efficacy of Microbial Biopesticide Formulations in the control of Xanthomonas citri pv. Mangiferaeindicae in Cashew (Anacardium occidentale L.) in Cote D’ivoire. This research paper published by the International Journal of Agronomy and Agricultural Research | IJAAR, an open access scholarly research journal on Agriculture, under the affiliation of the International Network For Natural Sciences | INNSpub, an open access multidisciplinary research journal publisher.
Cassava (Manihot esculenta Crantz) is a food crop with tuberous roots that plays an important role in feeding populations. The need to control cassava pests led to testing the effect of the biopesticide NECO 50 EC on Phenacoccus manihoti in a plot of the city of Grand-Lahou. The effectiveness of the biopesticide NECO 50 EC was tested on larvae and adults of P. manihoti, in comparison with a conventional insecticide K-OPTIMAL 35 EC. Dilutions gave 5 respective concentrations of NECO 50 EC: 8.33 g/l; 4.54g/l; 3.12g/l; 2.38 g/l and 1.92 g/l, and a concentration of 0.093 g/l for the control insecticide. Spraying of cassava plants infested with mealybugs was undertaken and observations were made 24 hours, 48 hours and 72 hours after treatment. On the larvae, the highest rate (92.07 ± 0%) is obtained at a concentration of 8.33 g/l for NECO and 98.51% for the control insecticide. In adults for NECO the highest rate (62.50 ± 0%) is obtained at the concentration of 8.33 g/l and 96.17% for the control insecticide. The biopesticide NECO 50 EC could be used as an alternative to the excessive use of synthetic insecticides to reduce the damage of the pest P. manihoti.
The accumulation of solid waste and consumption of fossil fuels are two phenomenons which already have a major destructive effect on the environment. The lack of alternative solid waste management procedures and shortage of the development of renewable energy resources should be addressed in order to sustain environmental quality. Sawdust is a major waste product along the Lagos lagoon with cellulose one of the predominant structural components of sawdust. The bio-conversion of waste cellulose, a glucose biopolymer into glucose a fermentable sugar has been performed with cellulase from Aspergillus Niger. Delignified and non-delignified sawdust from five different trees along the Lagos Lagoon have been saccharified with A. niger cellulase. The saccharification of these sawdust materials have been performed at different incubation temperatures of 30°C, 40°C, 50°C and 60°C. Optimum saccharification of non-delignified and delignified cellulose from the various trees along the Lagos Lagoon were optimum saccharified at different temperatures resulting in different sugar concentrations produced. A temperature of 40°C was optimum for maximum degradation of non-delignified cellulose from al
Diversity and seasonal abundance of small mammals in Bumdeling Ramsar Site, Trashiyangtse, Eastern Bhutan| JBES - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Small mammals have multiple ecological roles and are important components of the terrestrial ecosystems. They are important ecological indicators of changes in the natural surroundings. However, little is known about the small mammals in Bhutan. We conducted this study in the Bumdeling Ramsar Site in eastern region of Bhutan, aimed at enhancing our understanding of the species composition, abundance, and seasonal diversity of small mammals. We laid linear transects, each measuring 500 m in six different habitat types: agriculture land (AG), fallow land (FL), Alnus sp. forest (AF), open grassland (OG), riparian forest (RR), and oak forest (OF). We placed 17 collapsible Sherman live traps (23x9x8cm) in each transect to capture both ground dwelling and arboreal small mammals. We conducted the trapping exercise twice in the year 2016 (28 March to 28 April during the wet season and 1 to 30 October during the dry season), amounting to a total of 1,224 trap nights. We trapped a total of 135 individuals of small mammals, yielding seven species of rodents (90 individuals; 66.7%) and four of insectivores (45 individuals; 33.3%). We found significant difference in the number of individuals trapped among the six different habitats (X2=66.43, df= 5, P<0.05) with the highest in AG (59 individuals, 43.7%) and the lowest in OG (1 individual; 0.7%) during the dry and wet season, respectively. In order to promote diversity of small mammals in the Ramsar site, we recommend reducing free-range cattle grazing and restraining domestic dogs in the vicinity of the Ramsar site.
This study aimed to assess the effects of different gamma radiation doses from Cobalt -60 isotopic source on seed germination and early growth parameters of Jatropha curcas L. Healthy and dry seeds were subjected to three doses of gamma rays (100, 200 and 300 Gy). The experiment was conducted using randomized complete block design, with three replicates. The significantly maximum germination percentage (89.85 %), seedling survival (92.3 %), seedling collar diameter (0.892 cm), plant height (17.30 cm), number of leaves (7) were observed at 30 days after germination. The results revealed that seed germination percentages and seedling shoot length decreased with increasing dose of gamma-rays. Higher gamma-ray dose (300 Gy) in particular had a pronounced effect on these germination parameters than others, probably because high-dose inhibited cell division due to free radicals and DNA system damage. The LD50 for seeds germination rates was obtained at 254 Gy. These results implied that germination traits of Jatropha curcas seeds were sensitive to increase in gamma-ray.
Mungbean is economically important crop as protein source substitute locally known as “Monggo”. This experimental investigation assessed the response of Mungbean, Vigna radiata and the soil characteristics applied with four (4) treatment with four replication such as T1-Control, T2– 45-45-45kg NPK ha-1, T3-20 t ha-1 chicken manure + 45kg P ha-1, and T4 20 t ha-1 guano + 45kg P ha-1 in RCB design. Comparison of means revealed that all treatments do not give significant differences in plant height, number of leaves, weight of pods, weight of grains, weight of oven dried roots and shoots but only no of pods and nodulation were significant provided by ANOVA .
This is a sequel test after the chemical analysis and microbiological procedures have been conducted. The study determined the level of acceptability of the by-product of Talisay (Terminalia catappa) nuts specifically; Talisay Nuts Polvoron, Glazed Talisay Nuts, and Sugar-coated Talisay Nuts using sensory evaluation as to appearance, taste, aroma, sweetness, and texture. The responses of the food inclined participants are described yielding from the Hedonic Tests conducted and statistically treated. Results concluded that the developed products are remarkably acceptable and marketable.
Extreme weather events are anticipated to increase the existing challenges and generate new combination of vulnerabilities, especially in developing countries. Agricultural sector is the most vulnerable due to overreliance on unpredictable rainfall. This study examined the impact of extreme weather events on urban crop production and its adaptation strategies applied by the farmers. Secondary data were collected through literature survey and primary data were collected using structured interviews, observations and focus group discussions. A total of 108 crop farmers were interviewed in two wards of Kinondoni District. The Statistical Package for Social Sciences (SPSS) version 20 was used to analyze the data and Pearson Chi-square was used to test the statistical significance between variables. The study observed that, farmers perceived extreme weather events including floods (39%), extreme temperatures (36%), and drought (25%). These extreme weather events affected negatively crop production leading damaging of crops and low yields (38%), outbreak of crop pests and disease (38%), drying of water sources (20%), and loss of soil fertility (4%). Crop farmers used various adaptation strategies such as crop diversification (28%), the use of pesticides (23%), changing of cropping patterns and planting calendar (16%), irrigation practices (18%) and replanting (10%). The study recommends for adoption of new farming systems such as vertical farming systems for better output with the use of limited water and land resources.