Revitalization of plant growth promoting rhizobacteria for sustainable development in agriculture

Gouda, Sushanto,Kerry, Rout George,Das, Gitishree,Paramithiotis, Spiros,Shin, Han-Seung,Patra, Jayanta Kumar Elsevier 2018 MICROBIOLOGICAL RESEARCH Vol.206 No.-

<P><B>Abstract</B></P> <P>The progression of life in all forms is not only dependent on agricultural and food security but also on the soil characteristics. The dynamic nature of soil is a direct manifestation of soil microbes, bio-mineralization, and synergistic co-evolution with plants. With the increase in world’s population the demand for agriculture yield has increased tremendously and thereby leading to large scale production of chemical fertilizers. Since the use of fertilizers and pesticides in the agricultural fields have caused degradation of soil quality and fertility, thus the expansion of agricultural land with fertile soil is near impossible, hence researchers and scientists have sifted their attention for a safer and productive means of agricultural practices. Plant growth promoting rhizobacteria (PGPR) has been functioning as a co-evolution between plants and microbes showing antagonistic and synergistic interactions with microorganisms and the soil. Microbial revitalization using plant growth promoters had been achieved through direct and indirect approaches like bio-fertilization, invigorating root growth, rhizoremediation, disease resistance etc. Although, there are a wide variety of PGPR and its allies, their role and usages for sustainable agriculture remains controversial and restricted. There is also variability in the performance of PGPR that may be due to various environmental factors that might affect their growth and proliferation in the plants. These gaps and limitations can be addressed through use of modern approaches and techniques such as nano-encapsulation and micro-encapsulation along with exploring multidisciplinary research that combines applications in biotechnology, nanotechnology, agro biotechnology, chemical engineering and material science and bringing together different ecological and functional biological approaches to provide new formulations and opportunities with immense potential.</P>

Dermatomyositis Following BNT162b2 mRNA COVID-19 Vaccination

Wesam Gouda,Anwar Albasri,Faisal Alsaqabi,Humoud Y. Al Sabah,Marwan Alkandari,Hassan Abdelnaby 대한의학회 2022 Journal of Korean medical science Vol.37 No.5

Dermatomyositis (DM) is one of the uncommon multi-organ idiopathic inflammatory myopathies that has been reported following the hepatitis B, Influenza, tetanus toxoid, H1N1, and BCG vaccines. However, an association with the coronavirus disease 2019 (COVID-19) vaccine is yet to be reported. In this case, we present the case of a 43-year-old Asian Indian female who was diagnosed with DM 10 days after receiving the second dosage of BNT162b2 mRNA COVID-19 vaccination, in the absence of any additional triggering factors. The diagnosis was established based on physical examination, serological antibodies, magnetic resonance imaging of the muscles, skin biopsy, and electromyography. She received standard treatment for DM, including oral high doses of prednisolone, hydroxychloroquine, mycophenolate, and physiotherapy. The treatment successfully reversed skin changes and muscle weakness. This is the first reported case of classic DM complicated by interstitial lung disease following COVID-19 vaccination. More clinical and functional studies are needed to elucidate this association. Clinicians should be aware of this unexpected adverse event following COVID-19 vaccination and arrange for appropriate management.

Development of effectively costed and performant novel cation exchange ceramic nanocomposite membrane based sulfonated PVA for direct borohydride fuel cells

Marwa H. Gouda,Noha A. Elessawy,Arafat Toghan 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.100 No.-

A direct borohydride fuel cell (DBFC) is a type of low temperature fuel cell, and to commercialize this typeof fuel cell, it requires efficient and inexpensive proton exchange membranes. In this study, a binarypolymer blend is formulated from inexpensive and ecofriendly polymers such as iota carrageenan (IC)and polyvinyl alcohol (PVA). Zirconiam phosphate (ZrPO4) was synthesized from a simple impregnation— calcination method and later embedded as a doping agent into the polymeric matrix with percentage(1–7.5) wt.%. The novel nanocomposite membranes were evaluated by TGA, DSC, FTIR, XRD and SEM. Theoxidative stability and tensile strength of the obtained membranes were enhanced and achieved resultsbetter than those of Nafion117 due to an increase in the number of hydrogen bonds formed between thepolymer functional groups and oxygen functional groups of ZrPO4with increasing doping concentration. In addition, the borohydride permeability of the membranes decreased with increasing ZrPO4weightpercentage, while the ionic conductivity and power density increased to 25.5 mS cm 1 and 66 mW cm 2,respectively, for membrane with 5 wt.% of ZrPO4. The fabricated membrane with the optimum properties(PVA/IC/ZrPO45) can be efficient as a proton exchange membrane towards the development of greenand low cost DBFCs.

Certifications systems as independent and rigorous tools for assessing urban sustainability

Amr Ah. Gouda,Houshmand E. Masoumi 서울시립대학교 도시과학연구원 2018 도시과학국제저널 Vol.22 No.3

Urban sustainability certification (USC) systems are witnessing a wide dissemination and some are used as globally relevant tools. In addition, USCs are being marketed as independent tools capable of assessing sustainability not only comprehensively but also using rigorous measures. The comprehensiveness and rigour of their assessment rest on a combination of simple criteria (directly prescribing indicators with quantitative/qualitative measures) and nested ones (hosting other references for sustainable planning (RsSP)) prescribed within each USC. However, such scope seems over-ambitious due to the complexity of urban sustainability and its contextual sensitivity. Accordingly, this study aims to delve in USCs and examine their rigour and independence. The study begins by analyzing the concepts of street connectivity and compactness in LEED-ND (the most rigorous USC) because both are prominent concepts and have a number of earmarked criteria with simple structure. Then, criteria with nested structure and their RsSP found in four USCs are collected and analyzed in terms of frequencies, weights, and geographic domains. This analysis aims to uncover how dependent USCs are on other RsSP and how compatible are the geographic domains of both. The results refute the rigour of LEED-ND's assessment in terms of compactness and connectivity because the prescribed measures are insufficient to assess the different variables of both concepts. Moreover, USCs are highly dependent on local RsSP (only relevant to USC's country of origin), which disagrees with their characterization as independent or international tools.

Determinants of Global Korea Scholarship students’ word-of-mouth about Korea

Kadir Jun Ayhan,Moamen Gouda 서울대학교 교육연구소 2021 Asia Pacific Education Review Vol.22 No.1

International student-mobility programs are one of the core programs countries employ as part of their public diplomacy portfolio. Policymakers assume that sponsored foreign students would develop positive beliefs about and emotions towards the host country, which in turn would lead to favorable behavior towards it. However, evaluations of such programs from a public diplomacy perspective are rare and Western-centric. In this paper, we analyze how Global Korea Scholarship students’ cognitive and affective evaluations of Korea influence their country image and word-of-mouth about Korea; i.e., in how they voluntarily share their experiences in Korea with others. We use variance-based partial least squares structural equation modeling (PLS-SEM) to analyze the data obtained from surveying 1107 scholarship holding foreign students. Our findings suggest that students evaluate Korea most positively in terms of its culture and nature, while their evaluations are not as positive in terms of the integrity and values of the country. For positive word-of-mouth, affection towards Korea plays the most significant role, while for negative word-of-mouth, the students’ beliefs about the country’s integrity and values had the most influence. Our findings help identify the strengths and weaknesses in Korea’s country image which can, in turn, inform and shape policies accordingly.

Recent Developments in Devices Used for Gastrointestinal Endoscopy Sedation

Basavana Goudra,Gowri Gouda,Preet Mohinder Singh 대한소화기내시경학회 2021 Clinical Endoscopy Vol.54 No.2

Hypoxemia is a frequent and potentially fatal complication occurring in patients during gastrointestinal endoscopy. Theadministration of propofol sedation increases the risk of most complications, especially hypoxemia. Nevertheless, propofol has beenincreasingly used in the United States, and the trend is likely to increase in the years to come. Patient satisfaction and endoscopistsatisfaction along with rapid turnover are some of the touted reasons for this trend. However, propofol sedation generally impliesdeep sedation or general anesthesia. As a result, hypopnea and apnea frequently occur. Inadequate sedation and presence of irritableairway often cause coughing and laryngospasm, both leading to hypoxemia and potential cardiac arrest. Hence, prevention ofhypoxemia is of paramount importance. Traditionally, standard nasal cannula is used to administer supplement oxygen. However, itcannot sufficiently provide continuous positive airway pressure (CPAP) or positive pressure ventilation. Device manufacturers havestepped in to fill this void and created many types of cannulas that provide apneic insufflation of oxygen and CPAP and eliminatedead space. Such measures decrease the incidence of hypoxemia. This review aimed to provide essential information of some of thesedevices.

MINIREVIEW] Cure of tuberculosis using nanotechnology: An overview

Rout George Kerry,Sushanto Gouda,Bikram Sil,다스기티스리,신한성,Gajanan Ghodake,Jayanta Kumar Patra 한국미생물학회 2018 The journal of microbiology Vol.56 No.5

Mycobacterium tuberculosis is the causative agent of tuberculosis (TB), a major health issue of the present era. The bacterium inhabits the host macrophage and other immune cells where it modulates the lysosome trafficking protein, hinders the formation of phagolysosome, and blocks the TNF receptor- dependent apoptosis of host macrophage/monocytes. Other limitations such as resistance to and low bioavailability and bio-distribution of conventional drugs aid to their high virulence and human mortality. This review highlights the use of nanotechnology-based approaches for drug formulation and delivery which could open new avenues to limit the pathogenicity of tuberculosis. Moreover phytochemicals, such as alkaloids, phenols, saponins, steroids, tannins, and terpenoids, extracted from terrestrial plants and mangroves seem promising against M. tuberculosis through different molecular mechanisms. Further understanding of the genomics and proteomics of this pathogenic microbe could also help overcome various research gaps in the path of developing a suitable therapy against tuberculosis.

apoptosis in N-acetyl-p-aminophenol-induced liver injury in mice is tissue factor dependent

Mohamed Sadek Abdel-Bakky,Gouda Kamel Helal,El-Sayed Mohamed El-Sayed,Elham Amin,Abdulmajeed Alqasoumi,Ahmad Alhowail,Eman Sayed Said Abdelmoti,Ahmed Saad Saad 대한생리학회-대한약리학회 2021 The Korean Journal of Physiology & Pharmacology Vol.25 No.5

Tissue factor (TF) activates the coagulation system and has an important role in the pathogenesis of various diseases. Our previous study stated that retinoid receptors (RAR-α and RXR-α) are released as a lipid droplet in monocrotaline/ lipopolysaccharide-induced idiosyncratic liver toxicity in mice. Herein, the interdependence between the release of retinoid receptors RAR-α and RXR-α and TF in Nacetyl- p-aminophenol (APAP)-induced mice liver toxicity, is investigated. Serum alanine transaminase (ALT) level, platelet and white blood cells (WBCs) counts, protein expression of fibrin, TF, cyclin D1 and cleaved caspase-3 in liver tissues are analyzed. In addition, histopathological evaluation and survival study are also performed. The results indicate that using of TF-antisense (TF-AS) deoxyoligonucleotide (ODN) injection (6 mg/kg), to block TF protein synthesis, significantly restores the elevated level of ALT and WBCs and corrects thrombocytopenia in mice injected with APAP. TF-AS prevents the peri-central overexpression of liver TF, fibrin, cyclin D1 and cleaved caspase- 3. The release of RXR-α and RAR-α droplets, in APAP treated sections, is inhibited upon treatment with TF-AS. In conclusion, the above findings designate that the released RXR-α and RAR-α in APAP liver toxicity is TF dependent. Additionally, the enhancement of cyclin D1 to caspase-3-dependent apoptosis can be prevented by blocking of TF protein synthesis.

Computer-guided buccal cortical plate separation for removal of calcified benign odontogenic tumors affecting the mandibular angle region

Mohammed Omara,Ayman Gouda,Sherif Ali 대한악안면성형재건외과학회 2022 Maxillofacial Plastic Reconstructive Surgery Vol.44 No.-

Purpose: Surgical removal of intra-bony calcific benign lesions is technically challenging regarding its accessibility, proximity to vital structures, and deteriorating effect on the remaining bony structures. Methods: Computer-guided buccal cortical plate separation was performed for ten patients using patient-specific osteotomy locating guides and pre-bent plates. The guide was designed to outline the osteotomy, the buccal cortical plate was separated, the lesion was removed, and finally, the pre-bent plates were used to fix the separated cortex. Results: Surgical procedures were uneventful for all patients, operation time was 39.5 ± 13.01 min, postoperative pain decreased within the follow-up time intervals, and there was a statistical significant difference between the time intervals (P value < 0.001). Edema and trismus were acceptable. One case showed nerve affection which resolved after 4 weeks. Conclusion: Computer-guided buccal cortical plate separation for removal of intra-bony calcified benign lesions provides a promising approach, especially for inexperienced surgeons. Trial registration: ClinicalTrials.gov NCT05 329974. Registered on 6 April 2022—retrospectively registered.

Influence of loading method and stiffening on the behavior of short and long CFST columns

Fattouh M.F. Shaker,Gouda M. Ghanem,Ahmed F. Deifalla,Ibrahim S. Hussein,Mona M. Fawzy 국제구조공학회 2022 Steel and Composite Structures, An International J Vol.44 No.3

The objective of this research is to study experimentally the behavior of stiffened steel tubes (CFSTs). Considered parameters are stiffening methods by through-bolts or shear connectors with different configurations. In addition, the effect of global (ratio between length to diameter) and local (proportion between diameter to thickness) slenderness ratios are investigated. Load application either applied on steel only or both steel and concrete is studied as well. Case of loading on steel only happens when concrete inside the column shrinks. The purpose of the research is to improve the behavior of CFSTs by load transfer between them and different stiffening methods. A parametric experimental study that incorporates thirty-three specimens is carried out to highlight the impact of those parameters. Different outputs are recorded for every specimen such as load capacities, vertical deflections, longitudinal strains, and hoop strains. Two modes of failure occur, yielding and global buckling. Shear connectors and through-bolts improve the ultimate load by up to 5% for sections loaded at steel with different studied global slenderness and local slenderness equal 63.5. Meanwhile, shear connectors or through bolts increase the ultimate load by up to 6% for global slenderness up to 15.75 for sections loaded on composite with local slenderness equals 63.50. Recommendations for future design code development are outlined.