Archive of Journal
Volume 76, Issue 4, Apr. 2020

PERCEIVED ORGANISATION SUPPORT: APPLYING MINDFUL WORK PRATICES AND ERADICATING EMPLOYEE DEHUMANISATION IN THE WORKPLACE

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.10

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Abstract: This study assesses academics perceptions regarding the extent to which the organisation values and cares for them. Inter correlations amongst sub-dimensions of perceived organisational support, biographical correlates and perceptions of the dimension are based on inferential and descriptive statistics. The sample comprised of academics from the four colleges at the University of KwaZulu-Natal and was drawn using cluster sampling. The expected sample was 292 and the sample that was achieved was a 262 using. Data was collected using a questionnaire whose psychometric properties of validity and reliability were statistically assessed using Factor Analysis and Cronbach's Alpha respectively. It is evident that the greatest level of improvement is needed in perceived organisational support as it has the lowest mean score value (Mean = 2.858). Perceived organisational support assesses employees perceptions of various aspects of support from their organisation. The study also shows that there is a significant difference in the perceived organisational support of academics varying in biographical profiles (age, marital status, position, tenure, gender) and college respectively.

Author(s): Sanjana Brijball Parumasur, Mbalenhle Bridget Dlamini


THE ROLE OF DEMOGRAPHIC VARIABLES IN SOCIAL UPLIFTMENT OF WOMEN THROUGH MICROFINANCE INTERVENTION

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.8

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Abstract: Social empowerment is one of the powerful indicators of human development. There have been many studies focusing on the economic impact of microfinance intervention on its beneficiaries. Measuring economic impacts are easier as these are quantitative in nature. However, to gauge the full potential of this program the social impact needs to be researched in depth. Through this study, the researchers have tried to investigate five social impact variables of microfinance namely – Decision Making, Health, Empowerment, Social Communication and Crisis Management. The research also aims to study the impact and relation of independent demographic variables on the social variables identified. Data has been collected from 270 SHG members through a structured questionnaire. Statistical techniques like Correlation, Chi- square test, KMO and Barlett’s Test, Cronbach Alpha, ANNOVA and Scheffe’s Test has been used for the analysis of data collected. It has been observed that there is significant effect of demographic factors on the social impact variables. Positive correlation is noted among the social variables identified. The paper concludes that microfinance has positive social impacts on its members and their communities. The demographic variables such as age, education level and source of loan have a positive correlation on social impact variables and hence such factors need to be given due attention while formulating any development program.

Author(s): Shreya Patel, Amar Nath Jha


CHARACTERIZATION OF PROBIOTIC LACTIC ACID BACTERIA ISOLATED FROM ALGERIAN CAMEL MILK INVITRO

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.19

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Abstract: A total of 78 lactic acid bacteria (LAB) were isolated from spontaneously fermented camel milk samples and investigated in vitro for their characteristics as potential new probiotic strains. Only nine LAB were active against pathogenic bacteria and imply adhesive properties. The presumed probiotic strains were evaluated for their tolerance to low pH and to 0.3% and 0.5% of bile salts. None of them was able to develop at pH 2 but all showed high resistance to pH 3 compared to the optimal (pH 6.2). Furthermore, all strains showed good bile tolerance. Based on their morphological, physiological and some biochemical characteristics, probiotic strains were assigned to the genus Leuconostoc. Nucleotide sequences of their 16S rRNA showed 94 to 99% similarity to Leuconstoc mesenteroides. The safety results of all nine strains showed the absence of ?. haemolytic activity, gelatinase, DNase, and coagulase. From 14 antibiotics tested, all strains resisted to five only: nalidixic acid, colistin, cefixime, oxacillin and fusidic acid. Overall results indicated that Leuconostoc mesenteroides strains isolated from camel milk could serve as promising probiotic candidates.

Author(s): Asma Bouguerra, Daoud Harzallah, Ina Salwany Md Yasin, Santha Silvaraj, Sabrina Bakli, Nour El Houda Rabhi


EXPLORATION OF PARENTS APPREHENSIONS ABOUT EMOTIONAL AND SOCIAL DEVELOPMENT OF THEIR CHILDREN IN EVER CHANGING DIGITAL WORLD

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.18

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Abstract: Children are spending most of their time in the world which is dominated by digital devices or gadgets such as iPads, iPhones, computer screens, and TVs, Parents apprehensions and fears are also increasing. The purpose of present study is to explore the parents apprehensions regarding their children social and emotional development due to increase in screen time. Three independent focus group discussions were carried out with parents to gain in depth understanding. Focus group guide was developed on the basis of literature and suggestions by subject matter experts,. Following the ethical consideration, focus group discussions were audio taped and transcribed. Content analysis was carried out to emerge the themes of the discussion. For precision and accuracy, the themes were then analyzed by two independent raters. Inter-rater reliability was assessed for the theme which was found to be substantial. The major themes that were identified by the present study were that excessive use of technology is affecting children emotional, social development and also leading them to inactive life style. On the other hand, technology can expand their vision if it is properly use for educational and constructive purpose. It is recommended that healthy home environment and good quality time can reduce the excessive screen time in children.

Author(s): Saba Khurshid, Hafsa Khalil Toor, Tanvir Akhtar


USE OF TREATED WASTEWATER FOR IRRIGATION, IMPACTS ON GROWTH, DEVELOPMENT AND HEAVY METAL CONTENTS OF TOMATO PLANT \"SOLANUM LYCOPERSICUM\"

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.24

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Abstract: This study aims to assess the impact of agricultural reuse of treated wastewater; in particular, the risk of degradation that will occur throughout the entire growing cycle of a tomato crop \\\\\\\"Solanum lycopersicum\\\\\\\". The main objective is to verify the effects of treated wastewater on the growth and development of this plant. Two different irrigations were chosen, one using treated wastewater from the Chlef wastewater treatment plant and the other using Ground Water from the experimental station reservoir of the University of Hassiba Benbouali in Chlef, Algeria as control. Randomized Complete Block Design (RCBD) with five replicates was used. A first sample was taken at the stage (3, 5 and 7 leaves), flowering and fruiting. Tests were carried out on the growth parameters, as well as on the production parameters. A physico-chemical analysis of the treated wastewater was also carried out for the following parameters: pH, temperature, electrical conductivity, COD, BOD, ammonia, nitrate and nitrite. The results obtained showed that it does not appear to have a negative effect on the quality of the fruit. Finally, the physico-chemical analysis of treated wastewater showed that for most of the parameters studied, the data comply with international standards established by the FAO. \\\\nKeywords: Algeria, Irrigation, Tomato, Solanum lycopersicum, Treated wastewater

Author(s): Amina Beldjilali, Adda Ababou


EVALUATION OF ANTIMICROBIAL ACTIVITY OF MEDICINAL\r\nPLANT Cotula cinerea AGAINST PATHOGENIC STRAINS

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.25

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Abstract: The objective of this study was to evaluate the total phenolic content and to determine the antibacterial potential of the leaves of Cotula cinerea commonly used in southeastern Algeria for the treatment of various ailments. For this, methanolic crude extract was prepared with absolute methanol. Total phenols concentrations were analysed using Folin-Ciocalteu’s method. The obtained methanolic crude extract was screened for its antibacterial activities against pathogenic microorganisms using agar diffusion method. High total phenolic content was recorded (0.143 mg GAE/ mL Ext) in the leaves of our plant. Results revealed that a remarkable inhibition of the bacterial growth was shown against the tested microorganisms and especially towards Staphylococcus aureus and Pseudomonas aeruginosa ATCC 27853 which are considered among the most resistant to antibiotics. In conclusion, our data suggest that Cotula cinerea extract has antibacterial activity and thus could be used as alternative therapy against antibiotic resistance bacteria.

Author(s): Djahra Ali Boutlelis, Benkaddour Mounia, Benkherara Salah


ROLE OF FAMILY CARE AND SUPPORT IN EXPERIENCE OF BEREAVEMENT AMONG ELDERS: CASE STUDY

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.22

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Abstract: Life is a journey, in this every one of us experiences gains and losses. When we gain\\\\r\\\\nsomething significant we experience happiness, but when we lose something we experience\\\\r\\\\nnegative emotional states like negative affect that is sadness, in some cases depression and in\\\\r\\\\nextreme case grief and bereavement. Prolonged grief and bereavement can lead to major\\\\r\\\\ndepression. Mostly people experience grief and turn to reconcile their original positive energies\\\\r\\\\nwithout any help, facilitator and intervention. Whereas, sometimes some people are not able to\\\\r\\\\nreconcile and remain stick to their grief and bereavement state. At this point they need\\\\r\\\\nfacilitation and special care. Current case revealed the significance of early detection of\\\\r\\\\ndepressive illness with reference to bereavement among elderly and the role of family care and\\\\r\\\\nsupport in fighting with the said problem. It is concluded there is a need to optimize family\\\\r\\\\nsupport (family support includes siblings, parental, off springs, spouse support) during the period\\\\r\\\\nof bereavement to minimize the burden and suffering of family members.\\\\r\\\\nKeywords: depression, grief, bereavement, primary care, family support

Author(s): Saba Zer Naz Hafsa, Asia Mushtaq, Fazaila Sabih, Amna Hassan, Syeda Rabia Shaheen, Fatima Afsar


ROSEMARY ESSENTIAL OIL (ROSMARINUS OFFICINALIS) IN QUAIL FARMING

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.21

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Abstract: The aim of this study was to determine the effect of adding essential oil of Rosmarinus officinalis (REO) to quail feed on growth performances, slaughter parameters, meat quality and sanitary hygiene. Six hundred (600) one-day-old quail chicks (Coturnix coturnix japonica) with an average weight of 7 g ± 0.2 g and an equal gender ratio (1:1) were randomly assigned to four groups - one control group and three experimental groups, each containing 150 subjects divided into 5 batches of 30 quail chicks. The experimental groups received a supplement of 1 g rosemary essential oil (REO) per kilogram of feed, distributed sequentially throughout every phase of breeding. The results of adding this REO supplement demonstrate a significant increase in live weight and weight gain combined with a reduction in the feed consumed and in the consumption index (p<0.002). No cased of death were observed during the breeding period. This supplementation resulted in an increase in liver weight, warm and cold carcass weight and yield. The meat's water retention capacity was improved along with the protein and fat content (p<0.05). The pH recorded 24 and 72 hours post mortem was reduced significantly (p<0.05). The anti-microbial effect of REO gave rise to a significant reduction in faecal coliforms (Escherichia Coli) and Staphylococcus aureus. Essential oil of rosmarinus officinalis could represent a beneficial alternative to antibiotics in increasing weight gain and improving sanitary prophylaxis among quail.

Author(s): Arbouche Fodil, Laghouati ouata, Arbouche Yasmine


PHYTOCHEMICAL STUDY, ANTIOXIDANT AND ANTIMICROBIAL\r\nACTIVITIES OF FLAVONOIDS AND DIETHYL ETHER EXTRACTS\r\nFROM LEAVES AND SEEDS OF MEDICINAL PLANT OF ALGERIA\r\nFLORA: Retama monosperma (L.) Boiss

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.4

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Abstract: The objective of this study is to determine the total phenol content of Retama monosperma (L.) Boiss. obtained by maceration and to test their antioxidant and antimicrobial capacity. The phenolic content was determined by the Folin-Ciocalteu reagent method, and the test of the free radical DPPH was used to evaluate the antioxidant activity, while the evaluation of the antimicrobial power of the extracts was determined by the agar diffusion method. The crude extracts of Retama monosperma showed a high total phenol content of 74.75 mg EAG / g extract for the seeds and 155.61 mg EAG / g extract for the leaves. The results of antimicrobial activity shows that the curd extract has a variable activity which differs according to the strain tested. It has been shown to be inactive against meticillin-resistant Staphylococcus aureus, while Candida albicans yeast is highly susceptible.

Author(s): SELAIMIA Abdelmadjide, AZOUZ Mounir, CHOUIKH Atef, ZGA Nadia, BESBES Neji


FOOTPAD DERMATITIS IN BROILERS IN ALGERIA: CURRENT SITUATION AND FUTURE CHALLENGES

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.6

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Abstract: Poultry production is one of the most intensive system of animal production where the poultry houses are crowded and the animals are confined to reduced and small areas. Poultry houses crowdedness results in high relative gas emission and rise of humidity and lead to fast deterioration of the litter and consequently to many poultry skin disorders like footpad contact dermatitis and breast burns. The present study was conducted on broiler chickens in the East of Algeria to investigate the rearing and environmental conditions prevailing in broiler farms and to evaluate the prevalence and extent of footpad dermatitis. It was started with visits of broiler houses and followed later with periodic visits of slaughterhouses with careful clinical examination of broiler legs followed by classification of the observed macroscopic lesions according to recent score. This recent work revealed poor rearing and environmental conditions and high prevalence of footpad dermatitis of 80,5%, in our broiler flocks and only 19,5% doesn�t showed any kind of footpad lesions. Footpad dermatitis, observed in this study, was usually ranged from slight skin inflammation to severe ulcers that far exceed the half of the footpad surface area. Footpad dermatitis lesions showed irregular geometric shapes and the exact surface areas were evaluated with a recent image processing and analysis program. Footpads of broilers represent an incredible mirror reflecting the rearing conditions in broiler farms and remain a potential indicator for assessment of poultry welfare. Footpad dermatitis scores are valuable tools for classification of footpad lesions and best when combined to recent technological advances for getting best and more accurate results.

Author(s): Nouicer Ferhat, Bennoune Omar, Kamel Khaoui, Hiba Noudjoud, Khawla Ben Alia, Zerdoumi Oumaima, Zaouia Malika


A REVIEW OF IoT ENABLED NETWORKS’ ARCHITECTURE AND\r\nACCESS CONTROL

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.13

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Abstract: Current IP and other networks such as Power Smart Grids are fast evolving, thus resulting in diverse connectivity challenges. This has led to the emergence of "the Internet of Things” (IoT) network transforming the legacy networks towards Device-to-Device (D-2-D) communication standards. By 2022, IoT will seamlessly interconnect the globe via intelligent devices and sensors of varying types and in the process large volumes of data will be generated. The resultant network structure will benefit mankind by helping in making complex decisions. In this paper, we overview both IoT enabled network architecture as well as and access and control framework for various services and applications. We commence with a review of a generalised IoT enabled network's security architecture as well as how the various elements constituting them interact. The paper then describes an access control framework applicable to the various would be applications and services.

Author(s): Lebogang Bopape, Bakhe Nleya, Richard Chidzonga


ENERGY OPTIMIZATION FOR A SMART PROSUMER

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.7

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Abstract: This paper outlines the optimization of cost of electrical energy consumption for a small microgrid typical of a residential area where each household has renewable generation capability and the daily load is portioned into essential none-interruptible and schedulable or interruptible loads. Dual tariffs exist, for buying and the other for in-feed into the utility grid. The optimization makes appliances scheduling decisions to suit prevailing power availability as well amount of power to sell or procure from the utility depending on availability and prevailing real time pricing. We assume availability of time-variant energy parameters, then formulate a global optimization problem whose solutions leads to quantification of the optimal amount of energy purchased and sold for each of the individual households. When the unrealistic assumption of availability of information is removed from the implementation of the global optimization, an online algorithm that only requires the current values of the time varying supply and demand processes shows by simulation that the distributed algorithm can realise credible scheduling of prosumer household electricity usage. This is imperative as the very requirement of involving the consumer for appliances scheduling defeats the optimization cause as humans are not suitable for such repetitive and mundane tasks

Author(s): Richard Chidzonga, Bakhe Nleya


TOMATOES (SOLANUM LYCOPERSICUM L.) MARKETING IN OGUN STATE NIGERIA: A CASE STUDY OF LAFENWA MARKET

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.23

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Abstract: The study analyzed the marketing analysis of Tomatoes in Ogun State. The data for this study was obtained from 150 Tomato marketers randomly selected from Lafenwa market of Ogun state, Nigeria with the aid of a well-structured questionnaire. Lafenwa market was purposely selected as the study area because both retailers and wholesalers could be found in these locations. Information such as age, household size and marketing activities collected from the respondents were analyzed using descriptive, budgetary analysis, benefit cost ratio (BCR) and regression analysis. Descriptive statistic results revealed the mean age of the Tomato marketers was 44years, 69.39% of marketers belong to female gender with mean household size, years of education and marketing experience estimated at 4 persons, 8 years and 7 years respectively. Based on their marketing activities, 58.9%, 45.3% and 88.0 % of the respondents were tomato wholesalers, purchased Tomatoes directly from farm and sells both round and oblong Tomato types in these locations respectively. Problems encountered by the respondents include price fluctuation (84.0%), Tomato scarcity during off season (94.67%) and spoilage due to lack of storage facilities (97.0%). Budgetary analysis revealed that Tomato marketing is profitable with BCR of 1.46. Regression analysis revealed that purchase cost, transport cost, and storage cost and labour cost had significant effect on quantity of Tomatoes sold. The study recommended that marketers in the study areas should for a formidable force by putting together their resources to ensure maximum return to scale on investment. In addition, government should rehabilitate roads linking rural areas which urban areas to ensure ease transportation of goods and avoid perishability of goods.

Author(s): Abiodun Olusola Omotayo, Saidat Adebola Dauda, Abeeb Babatunde Omotosob, Wasiu Adedamola Rasaki


CHANGE IN STAFF PERCEPTION OF LEAN HEALTH PRACTICES AFTER INITIATING LEAN IMPLEMENTATION

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.12

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Abstract: Positive perception of employees about Lean management is the most critical factor for the success of Lean practices. Although there are studies measuring staff perception of Lean adoption in healthcare, staff perception of Lean health practices before adopting Lean and its change after the implementation has not been studied yet. This study examines the effects of implementing Lean Health Care Management (LHCM) on the staff perception of Lean health practices in a university hospital accepting 1.2 million patients per year from all over the world. A scoring scale based on 48 questions was used to examine the effects of the LHCM practices on a total of 286 participating staff. The survey was conducted before training the employees about LHCM and after the implementation of LHCM for one year. Our results showed that the university hospital rightly embedded Lean health care practices as a part of the organization culture and improved operational efficiency and effectiveness. The personnel perception of ten lean health practices changed positively (t=4.83, p<0.05); 1) Continuous improvement (t=2.63, p<0.05), 2) Problem solving (t=8.08, p<0.05), 3) Flow orientation (t=4.24, p<0.05), 4) Self-managed teams (t=3.44, p<0.05), 5) Visual control (t=10.7, p<0.05), 6) Brief meeting (t=5.99, p<0.05), 7) Standardized work (t=2.54, p<0.05), 8) Coaching (t=4.49, p<0.05), 9) Supporting leadership style (t=3.60, p<0.05), 10) 5S (idle detection, proper placement, cleaning, standardization, discipline) (t=5.55, p<0.05). Our study is the first to report that personnel perception of Lean health practices changes positively shortly after initiating lean implementation.

Author(s): Ismail Hizli, Samil Hizli, Nermin Gurhan


MODELING THE GEOMORPHIC EVOLUTION OF LANDSCAPE IN NDELE, EMOHUA L.G.A. RIVERS STATE NIGERIA

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.20

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Abstract: This research focused on evaluating and understanding how exactly the landscape of Ndele area in Emohua L.G.A of Rivers state changed. The primary data for the study was gotten from the classification and extraction of DEM resolution 30m×30m LANDSAT TM– imagery downloaded for 1986 and 2016; from Earth Explorer United State Geological Survey; while the secondary data were gotten and retrieved from simulation output results of LAPSUS. LAPSUS, a free and an open source, GIS-based LEM model employed to simulate short-term topographic change for both steady and dynamic regimes transversely within a range of 104 year spatial scale in Ndele. The simulation analysis was carried out with the aid of an unfiltered digital elevation model (DEM) and five scenarios’ (water driven erosion and deposition, weathering, tillage, tectonics, and collapse) interacted under no supervision, producing model output results. From the results, it was evident that elevation is higher in the South-east and lower in the North-west. The North-west area is situated roughly between 165 and 1m, while the south west area is situated around 385m to 274m.

Author(s): Romanus Ayadiuno, Blessing Nesochi Godwin


EVALUATION OF ANTIOXIDANT POTENTIAL OF ALGERIAN MALVA SYLVESTRIS AQUEOUS EXTRACT.

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.5

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Abstract: The objective of our research is to evaluate the antioxidant activitiy of leaves aqueous extract of Malva Sylvestris (M Sylvestris). The investigation of the in vitro antioxidant activity was carried out by DPPH, �OH and H2O2 radical scavenging, Ferrous ion chelating, Ferric reducing power, total antioxidant capacity. Total phenolic content has been found at (153.02� 2.88 mg GAE/g). The extract displayed significant scavenging activity of some radicals such as DPPH (IC50 5.85 � 0.695 �g/ ml), �OH (IC50 = 880.64 � 13.25 �g/ml), H2O2 (IC50= 51.64 � 03.65 �g/ml) and showed a good antioxidant activity through ferrous ion chelating activity (IC50 = 59.845 � 0.801 �g/ml), ferric reducing power (IC50=66.17 � 1.03 �g/ml), total antioxidant capacity (IC50 348.357 � 6.03 ?g/ml). Malva Sylvestris aqueous extract can be used to prevent oxidative processes. Key words: Malva Sylvestris, ferric reducing, chelating activity, DPPH, radical scavenging, total antioxidant.

Author(s): MOUALEK Idir, Moualek Djedjiga, Benarab Karima, Sebbane Hillal, Bariz Karim, Houali Karim


MINDFULNESS, PROCRASTINATION AND JOB PERFORMANCE AMONG EMPLOYEES: MODERATING EFFECT OF JOB SECURITY

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.11

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Abstract: Background: Job demand resource model and self-determination theory is widely used for understanding procrastination, mindfulness, job performance and job security in organizational settings. The job demand resource model has been further used to understand job security as moderator among employee's with mindfulness, procrastination and job performance. The endeavor of the current study to investigate moderating role of job security among mindfulness, procrastination and job performance across male and female employees. Method: Purposive sampling technique was applied based on cross-sectional approach. Mindfulness Attention Awareness Scale (MAAS; Brown & Ryan, 2003), Tuckman's Procrastination Scale (TPS; Tuckman, 1991), and Job Performance Scale (JP-S; Wright, Kacmar, Mcmahan, &Deleeuw;, 1995) have been used to a sample of 400 male and female employees from different telecom's employee of Rawalpindi and Islamabad in Pakistan. Results: The correlation as well as moderation analyses have been used to investigate the study data. Findings demonstrate that permanent employees are higher on mindfulness and whereas contractual employees are scoring high on procrastination. Additionally, moderating effect of job security on mindfulness and job performance shows non-significant impact whereas the moderating effect of job security on procrastination and job performance has significant findings. The mod-graph showing permanent employees have more procrastination tendencies then contractual employees which effecting their job performance as well. Conclusion: The results support the job resource demand model and self-determination theory. According to JDR model, job demands and resources play important role in job performance of an employee in organizations and self-determination theory supports that mindfulness could be decrease procrastination and increase job performance in male and female employees. These findings also suggest that job security could inhibit job performance in male and female employees. Key words: Mindfulness, Procrastination, Job Performance, Job Demand Resource(JDR), Job Security

Author(s): Zafar Ahmad, Najam-ul-Hassan Abbasi


DIVERSITY AND SEASONAL OCCURRENCE OF APHIDS AND THEIR NATURAL ENEMIES IN A CEREAL ECOSYSTEM IN BISKRA REGION (SOUTHEAST OF ALGERIA)

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.14

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Abstract: Field surveys were carried to determine the seasonal occurrence of aphids and their natural enemies on durum wheat in Biskra (southeastern of Algeria), between december and june 2015. The sample was composed of 18 aphid species and 28 of their natural enemies. The species Rhopalosiphum maidis, captured is the most abundant species. The ladybug Coccinella septempunctata L., is the most abundant auxiliary. Predators from the following families were determined: Coccinellidae (Coleoptera), Chrysopidae (Neuroptera), Syrphidae. Braconidae (Hymenoptera). Aphid numbers fluctuated from early janury to the beginning of june and were highest from late febrery to early april. This richness of natural enemies of aphids negated the need for pesticides application. Therefore, conservation of natural enemies to fight against pests of agronomic interest such as aphids is a way of promoting biological control in the cereal agro-ecosystem in Biskra region.

Author(s): Nour-Elhouda Bakroune, Mehdi Sellami, Hafsa Bakroune, Mostapha Ababsa


EMERGENCE OF PLASMID MEDIATED COLISTIN RESISTANCE GENE MCR-1 IN CARBAPENEM-RESISTANT PSEUDOMONAS AERUGINOSA CLINICAL ISOLATES FROM ALGERIA: A NEW SUCCESSFUL RESISTANCE COMBINATION TOWARD A THERAPEUTIC IMPASSE?

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.16

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Abstract: Objectives: Pseudomonas aeruginosa is one of the main causes of nosocomial infections,\r\nespecially in immunocompromised patients in burn and intensive care units, who have\r\ninherited a number of drug resistance determinants via horizontal mutation. For this reason,\r\nour work has also been conducted to prove the genetic relationship between strains and to\r\ninvestigate the occurrence of genes conferring high levels of carbapenem and colistin\r\nresistance in Pseudomonas aeruginosa isolates from the Algerian hospital.\r\nMethodology: 27 colistin resistant Pseudomonas aeruginosa (CO-RPA) recovered from\r\npatients and hospital environment were analyzed using a combination of phenotypic and\r\nmolecular typing methods for the identification of plasmid mediated colistin resistance genes;\r\ncarbapenem resistant Pseudomonas aeruginosa (CRPA) isolates were tested for the presence\r\nof genes encoding β-lactamases, quinolones and β-lactamases.\r\nPCR-Ribotyping and PCR 16s rDNA were used to establish the phylogeny and clonal\r\nrelationship of strains.\r\nResults: Molecular Screening for mcr encoding genes showed that 02 tested isolates\r\nexamined contained mcr-1, one isolate of which expressed mcr-1 and OprD genes at the same\r\ntime. Interestingly, 62.95 % of the colistin-resistant strains were imipenem-resistant in this\r\nstudy. Actually, loss/mutation in OprD was founded in 29, 41% (05/17) of imipenem-resistant\r\nstrains. PCR- Ribotyping revealed an outbreak of clonal distribution of colistin and\r\ncarbapenem resistant Pseudomonas aeruginosa isolates.\r\nConclusion: The current study highlights the first potential spread of the mcr-1 gene in\r\nPseudomonas aeruginosa strains in the health care setting in Algeria and around the world\r\nthat appears to be linked to the uncontrolled use of antibiotics. Strict precautions will be\r\nexpected to prevent the further spread of these pathogens in hospital settings.

Author(s): Addouda Abir, Ayachi Ammar, Hassaine Hafida, Dhaouadi Sana, Soufi Leila, Mahjoubi Mouna, Benmehidi Messaoud, Grainat Nadia, Elandalousi Ramzi Boubaker


EVALUATION OF POLYPHENOLS CONTENT OF TWO WILD ASTERACEAE FROM ARID CLIMATE AND SCREENING OF THEIR ANTIOXIDANT AND ANTIMICROBIAL ACTIVITIES

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.2

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Abstract: This study is performed to evaluate the antioxidant and the antimicrobial activities of Brocchia cinerea (Vis.) and Matricaria pubescens (Desf.). These species are very abundant after rain season in arid regions of Algeria. Aerial parts of these plants were subjected to extraction using solvents of different polarity, alone and/or mixed with water (70% methanol, ethyl acetate, n-butanol, 80% acetone, chloroform, and heated water to obtain similar traditional preparation). The antioxidant capacity was evaluated by means of DPPH radical scavenging activity and ferric reducing power (FRAP). The antimicrobial activity of the extracts was investigated by the solid medium diffusion method and serial dilution assays against pathogenic bacteria strains; Gram positive: Staphylococcus aureus ATCC 25923, Enterococcus faecalis ATCC 29212 and Gram negative: Pseudomonas aeruginosa ATCC 27853, Enterobacter cloacae ATCC 13047, Klebsiella pneumoniae ATCC 49619 and Escherichia coli ATCC 25922. As well as the fungi: Aspergillus niger and the yeast Candida albicans. The majority of the extracts have shown relatively, high antioxidant activity and variable antimicrobial effects against the tested bacteria and fungi. The results exhibited by Brocchia cinerea by means of its extract n-butanol (2204.021±0,042 μg EAAs/mg ext) showed it as the most metal reducer. The highest antiradical activity expressed by the lowest EC50 was noted by Matricaria pubescens ethyl acetate extract (0.110±0,003 mg/ml). Overall, the minimum inhibitory concentration (MIC) values for active extracts ranged between 0.125 and 1 mg/ml. Some resistances were also noted.

Author(s): Mebarka BOUZIANE, Wafa MIHOUBI, Mahfoud HADJ MAHAMMED


FIRST RECORDS OF THE CHEWING LICE (PHTHIRAPTERA) ASSOCIATED WITH MEROPIDAE SPECIES IN BISKRA (NORTHERN SAHARA, ALGERIA)

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.1

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Abstract: Studies on Meropidae ectoparasites are scarcely reported in Algeria. This paper aims to provide an in-depth analysis of the ectoparasites of Merops apiaster and M. persicus. Beekeepers captured the bee-eaters used in this survey in April 2018 using glue to protect their hives. The captured individuals were transported to the laboratory to collect ectoparasites. The 4 bee-eaters examined were infested as follows: 2 with Merops apiaster and 2 with M. persicus. 3 species of the ectoparasites found on individuals belong to the Meropidae family, namely Meromenopon meropis, Meropoecus meropis and Meropsiella erythropteri.

Author(s): TORKI Somia, MARNICHE Faiza, DIK Bilal, GUEZOUL Omar


EXAMINING AVAILABILITY AND FREQUENCY USE OF COMPUTER-BASED TECHNOLOGY RESOURCES AMONG STUDENTS IN NIGERIAN UNIVERSITIES

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.26

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Abstract: The integration of computer-based technology (CBT) into traditional face-to-face education has significantly affected many aspects of education systems worldwide. This article reports on the availability and frequency of use of CBT resources among undergraduate students in federal universities in South West Nigeria. Specifically, the study sought to investigatethe availability of CBT tools at different campuses and to identify those CBT applications most frequently used by students at these campuses. A descriptive survey research design using a mixed-method approach was applied. The quantitative and qualitative results were compared and contrasted to strengthen the findings. The study was conducted in six federal universities in the South West geopolitical zone of Nigeria. A total of 2,327 undergraduate students completed the questionnaire, while 18 of these students participated in the focus group interviews. The results revealed a low availability and frequency use of CBT resources at the campuses. Over 98% of students complained that they had to rely on their personal laptop, mobile phone, or a cybercafé; as well as purchase their own data for internet connections in order to complete assignments or access additional information. Factors that affected the use of CBT on campus included unstable power supply, poor network connectivity, unstable bandwidth, and lack of computer facilities on campus. Based on the findings, it was recommended that university management should ensure that all students have ready access to the internet, new software applications, and up-to-date CBT facilities, as this will encourage students to become conversant with the use of CBT from their first year. The use of CBT to supplement and augment classroom-based learning will enable students to learn at their own pace, thereby encouraging them to improve their academic performance.

Author(s): Desmond W. Govender, Aderinsola E. Kayode


THE EFFECT OF LIQUID DETERGENT AND PROPOLIS ON DNA DAMAGE, GROWTH TRAITS AND PHOTOSYNTHESIS PIGMENTS OF MAIZE (ZEA MAYS L.)

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.3

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Abstract: Seed germination, plant growth, photosynthetic apparatus and stoma cell size of Maize may be influenced by detergent and propolis treatment. The objective of this study was to determine the adverse effect of a liquid detergent on maize traits and to examine the effect of propolis on photosynthetic pigments and growth traits of Zea mays. Maize were watered with different concentrations of liquid detergent. 70 seeds of (Zea mays L.) were gathered from maternal plants. Water extract of propolis was prepared. The effect on all parameters was determined after 12 days of growth. The effects at (0.1%) water extract of propolis concentration on the germination increased by 88.92% and growth of maize seedling weights was 0.0353 gr/plant. Root length of maize seedlings at 0.1% water extract of propolis concentration was 11.59 mm. The highest concentration (20%) of liquid detergent reduced seed germination severely compared to other treatments. Under 15% detergent concentration, maize stem weight was reduced severely compared to leaf weight. Conclusions. These result show that the propolis affect the root and shoot elongation with specificity on seedlings and the stoma width. The scavenging of radicals of liquid detergant in vitro raised plants of Zea mays was determined to damage DNA.

Author(s): Meltem Maras, H. Sacilik


ISLAMOPHOBIA AND DIGITAL SPACES: CASE OF TWITTER RESPONSE ON NEWS STORIES OF MANCHESTER ATTACK 5/2

Volume 76, Apr 2020
doi: 10.21506/j.ponte.2020.4.9

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Abstract: Digital Islamophobia is hyped through web-based social networking and blogs, however additionally through social media outlets seen on the web. Online Islamophobia has been an assault on the Muslims as well as on society overall. Particularly, the social networking website Twitter has been on the edge in the development of social and political reality, because of its comparatively easy access. (Hughes et al., 2012). This research aims to find how twitter users represent Muslims in their discourse and Islamophobic metaphors in the twitter response on Manchester attacks. The case of Twitter response on news stories was qualitatively analyzed. The study found rich Islamophobic discourse on Twitter where the hate speech and anti-Islam, anti-Muslim discourse was high and very obvious.

Author(s): Nadira Khanum, Fazal Rahim Khan