Suchergebnisse

Given the calls to reinforce the accountability of education programmes, this review evaluated studies that evaluated K-12 global citizenship education (GCED) programmes to assess the evidence that such programmes improved the students' global learning. There are no current reviews assessing the impact of GCED programmes in the US. The authors conducted an electronic search in the educational databases to review the studies that addressed the impact of GCED programmes between 2000 and 2019. We reviewed the abstracts based on specific criteria: 33 studies met the inclusion criteria. Most of the studies were rejected because they did not provide the whole information about the programmes. The final 22 studies were selected because they provided the complete description about the evaluation programme of GCED. The review examined the components and the measures of the programmes, the approaches for collecting and analyzing data. The outcomes of the evaluated programmes support the claim that these programmes succeeded in improving students' global learning. However, our analysis revealed flaws in the studies evaluating the impact of the GCED programmes.

State recognition of Islam in Muslim countries invites fierce debate from scholars and politicians alike, some of whom assume an inherent conflict between Islam and liberal democracy. Analyzing case studies and empirical data from several Muslim-majority countries, Ahmed and Abbasi find, counterintuitively, that in many Muslim countries, constitutional recognition of Islam often occurs during moments of democratization. Indeed, the insertion of Islam in a constitution is frequently accompanied by an expansion, not a reduction, in constitutional human rights, with case law from higher courts in Egypt and Pakistan demonstrating that potential tensions between the constitutional pursuit of human rights, liberal democracy and Islam are capable of judicial resolution. The authors also argue that colonial history was pivotal in determining whether a country adopted the constitutional path of Islam or secularism partly explaining why Islam in constitutional politics survived and became more prevalent in Muslim countries that were colonized by the British, and not those colonized by the French or Soviets

Discusses economic recovery following the 1987-91 Somaliland liberation war with Somalia, the entrenchment of warlords and militias as a result of US/UN intervention in Somalia, and successful indigenous-led peace-building in Somaliland.

In this work, the effects of x-value on electrical and optical properties was studied for the two dimensional (2D)GaAs1-xPxstructure by applying the density functional theory.We found that the gallium arsenide(GaAs) and gallium phosphide(GaP) monolayers are bound to each other, while the charge transfer between these two materialsleads to tuning the band gap value between 1.5 eV for GaAs to 2.24 eV for GaP. The density of state, band structure, and optical properties are investigated in this paper.

A survey was conducted between December 2008 and March 2009 with the objective of determining the incidence of Webworm, (Loxostege massalis Walker) larvae infesting date palm (Phoenix dactylifera (L.) fruits. The study was carried out using structured questionnaire with one hundred and thirty-five date palm fruit vendors interviewed at three different business locations viz: markets, mosques and motor parks in three local government areas (LGAs) each of Katsina, Kano and Jigawa States. Results obtained clearly indicated the incidence of L. massalis larvae in date palm fruits sold in all the three States surveyed with Katsina and Kano States having the highest (5.16%) and lowest (3.33%) incidence, respectively. There was significant difference (P lessthanorequalto 0.05) in the number of larvae found in Katsina State compared to Kano and Jigawa States. Similarly, the number of fruits with larvae based on LGAs shows that, Katsina LGA was found to be significantly higher in number of larvae of L. massalis (P lessthanorequalto 0.05) compared with other LGAs in the States surveyed. There was also a significant difference (P lessthanorequalto 0.05) among the business locations with mosques having significantly lower number of date palm fruits larvae compared to markets and motor parks. The findings of this study clearly confirmed the incidence of L. massalis in marketed date palm fruits in the states surveyed with 3.95% damage to the total number of fruits collected indicating that, the insect is not of major economic importance. However, research is needed for its management. Keywords: Business location, Date palm, Incidence, Loxostege massalis and Webworm

AbstractAlzheimer's disease (AD) is a neurodegenerative disease (ND) that represents the principal cause of dementia. Effective treatment is still lacking. Without prevention, Alzheimer's disease (AD) incidence is expected to triple within 30 years. The risk increases in highly polluted areas and is positively linked to chronic aluminum (Al) exposure. Canonical Wingless-Int (Wnt)/β-catenin pathway has been found to play a considerable role in ND pathogenesis. Resins ofBoswellia serrata (frankincense) have been used traditionally for their psychoactive activity, in addition to their memory-boosting effects. Boswellic acids (BA) are pentacyclic triterpenes. They have antioxidant, anti-inflammatory, antinociceptive, and immunomodulatory activities. This study aimed to elucidate the role of the Wnt/β-catenin pathway in BA protective activity against aluminum-induced Alzheimer's disease. For 6 weeks, rats were treated daily with AlCl3 (100 mg/kg/i.p.) either alone or with BA (125 or 250 mg/kg PO). Results indicated that BA significantly improved learning and memory impairments induced by AlCl3treatment. Moreover, BA treatment significantly decreased acetylcholinesterase levels and reduced amyloid-beta (Aβ) expression. In addition, BA ameliorated the increased expression of tumor necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β), inhibited lipid peroxidation, and increased total antioxidants in the brain. Indeed, BA significantly suppressed AlCl3-induced decrease of brain-derived neurotrophic factor, pGSK-3β (Ser 9), and β-catenin. BA (250 mg/kg) showed a significant protective effect compared to a lower dose. The results conclude that BA administration modulated the expression of Wnt/β-catenin pathway-related parameters, contributing to BA's role against Al-induced Alzheimer's disease.Graphical abstractEffect of Boswellic acids on AlCl3-induced neurodegenerative changes. ChE cholinesterase, Ach acetylcholine, BDNF brain-derived neurotrophic factor, IL-1β interleukin-1β, TNF-α tumor necrosis factor-α

AbstractThe removal of n-alkanes, polycyclic aromatic hydrocarbons, and heavy metals from wastewater using three dried seaweeds Ulva intestinalis Linnaeus (green alga), Sargassum latifolium (Turner) C.Agardh (brown alga), and Corallina officinalis Kützing (red alga) has been shown to evaluate their potential usage as inexpensive adsorbents. Under natural environmental conditions, numerous analytical methods, including zeta potential, energy dispersive X-ray spectroscopy (EDX), SEM, and FT-IR, are used in this study. The results showed that n-alkanes and polycyclic aromatic hydrocarbons adsorption increased with increasing contact time for all three selected algae, with a large removal observed after 15 days, while the optimal contact time for heavy metal removal was 3 h. S. latifolium dry biomass had more potential as bioadsorbent, followed by C. officinalis and then U. intestinalis. S. latifolium attained removal percentages of 65.14%, 72.50%, and 78.92% for light n-alkanes, heavy n-alkanes, and polycyclic aromatic hydrocarbons (PAHs), respectively, after 15 days. Furthermore, it achieved removal percentages of 94.14, 92.62, 89.54, 87.54, 82.76, 80.95, 77.78, 73.02, and 71.62% for Mg, Zn, Cu, Fe, Cr, Pb, Cd, Mn, and Ni, respectively, after 3 h. Carboxyl and hydroxyl from FTIR analysis took part in wastewater treatment. The zeta potentials revealed that algal cells have a negatively charged surface, and the cell surface of S. latifolium has a more negative surface charge than U. intestinalis and C. officinalis. Our study suggests that seaweeds could play an important role in wastewater treatment and thus help as an economical, effective, and ecofriendly bioremediation system for ecological health and life protection.

AbstractAflatoxin M1 (AFM1) is a significant contaminant of food, particularly dairy products and can resist various industrial processes. Several probiotic strains like Lactobacillus plantarum are known to reduce aflatoxin availability in synthetic media and some food products. The current work investigated the possible chitosan coating prophylactic efficacy of Lactobacillus plantarum RM1 nanoemulsion (CS-RM1) against AFM1-induced hepatorenal toxicity in rats. Twenty-eight male Wistar rats were divided into four groups (n = 7) as follows: group 1 received normal saline, group 2 received CS-RM1 (1mL contains 6.7 × 1010 CFU), group 3 received AFM1 (60 µg/kg bwt), and group 4 received both CS-RM1(1 mL contains 6.7 × 1010 CFU) and AFM1 (60 µg/kg bwt). All receiving materials were given to rats daily via oral gavage for 28 days. AFM1 caused a significant elevation in serum levels of ALT, AST, ALP, uric acid, urea, and creatinine with marked alterations in protein and lipid profiles. Additionally, AFM1 caused marked pathological changes in the liver and kidneys, such as cellular necrosis, vascular congestion, and interstitial inflammation. AFM1 also increased the MDA levels and decreased several enzymatic and non-enzymatic antioxidants. Liver and kidney sections of the AFM1 group displayed strong caspase-3, TNF-α, and iNOS immunopositivity. Co-treatment of CS-RM1 with AFM1 significantly lowered the investigated toxicological parameter changes and markedly improved the microscopic appearance of liver and kidneys. In conclusion, AFM1 induces hepatorenal oxidative stress damage via ROS overgeneration, which induces mitochondrial caspase-3-dependent apoptosis and inflammation. Furthermore, CS-RM1 can reduce AFM1 toxicity in both the liver and kidneys. The study recommends adding CS-RM1 to milk and milk products for AFM1-elimination.