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Abstract Polylactic acid modified with graphene oxide (PLA/GO) is proposed to interact with ZnO through 6 different schemes. Density functional theory at B3LYP/LANL2DZ level was utilized to calculate total dipole moment (TDM), HOMO/LUMO energy gap (ΔE) and to map the molecular electrostatic potential (MESP). Results indicated that PLA/GO interacted with ZnO through O-atom forming PLA/GO/OZn composite. This composite interacts with methane, hydrogen sulfide, humidity (H2O), carbon dioxide and ethanol. The same gases were supposed to interact further with PLA/GO/Cu2O. Adsorption energy for the interaction between each composite and the proposed gases were calculated. Both PLA/GO/OZn and PLA/GO/Cu2O composites interacted favorably with H2O. Adsorption energy for interaction of other gases with studied structures are generally low compared to H2O. PLA/GO/OZn have adsorption energy slightly higher than that of PLA/GO/Cu2O. PLA/GO/OZn has higher TDM values than those of PLA/GO/Cu2O, indicating a more polar material. Conversely, PLA/GO/Cu2O exhibited larger ΔE values than those of PLA/GO/OZn. TDM and energy gap results for both studied structures indicated good sensing capabilities. Further insights come from analyzing the calculated density of states (DOS) and partial density of states (PDOS). PLA/GO/Cu2O exhibited high peak for copper in its DOS and PDOS spectra compared to zinc and oxygen in case of PLA/GO/OZn. This means a higher density of available electronic states associated with Cu.

Abstract Background Pre-operative coronary angiography and concomitant, planned coronary artery bypass are infrequently performed with type A aortic dissection repair. We present a case in which pre-operative coronary computed tomography angiography was appropriate, and subsequent dissection repair and concomitant coronary artery bypass were successfully performed. Case Presentation The patient is a 58-year-old male with heart failure with preserved ejection fraction, renal insufficiency, hypertension, obesity, and smoking history, who presented with a three-to-four-day history of persistent back pain, worsening exertional dyspnea, and orthopnea, as well as a two-to-three month history of dyspnea, lower extremity edema, and intermittent angina. He was diagnosed with an acute type A aortic dissection and anti-impulse control was initiated. However, repair was delayed in order to allow apixaban to metabolize and decrease the risk of bleeding, as the patient was approximately six days post-dissection, without malperfusion, with a well-controlled blood pressure on anti-impulse therapy, and had received five days of anticoagulation. During this time, coronary computed tomography angiography was performed to assess the need for concomitant revascularization and showed coronary artery disease. Ascending aorta hemiarch replacement with aortic valve resuspension, two-vessel coronary artery bypass grafting, and left atrial appendage clipping were performed successfully. Conclusions Pre-operative imaging can be considered in a select group of acute type A aortic dissections that present without malperfusion, and with well-controlled blood pressure on anti-impulse/negative inotropic therapy.

Abstract Environmental issues are the most discussed in today's industrialized world, and this has always been associated with the emission of greenhouse gases. CO2 emissions, especially from power plants, are considered the major greenhouse gas source. Capturing CO2 from large emission sources is necessary to address the worst impacts of climate change, including more frequent and severe droughts, heat waves, and intermittent rainfall. Conventional post‐combustion CO2 capture has always been questioned because of its high impact on energy costs. Rotating packed bed technology has shown the potential to reduce the cost of CO2 capture. This paper presents an experimental study on an in‐house designed rotating packed bed absorber for the capture of CO2 from a flue gas stream. Effects of process parameters such as rotating speed, liquid‐to‐gas ratio, and monoethanolamine (MEA) concentration on CO2 capture efficiency and overall volumetric mass transfer coefficient were studied. The study showed that as rotor speed increased, the CO2 capture efficiency increased, this can be attributed to higher rotor speed, resulting in more droplet flow, indicating an increase in the area of contact between the flue gas and the MEA solvent. Also, as the concentration of MEA increased CO2 capture efficiency increased, since an increase in concentration results in an increase in the rate of reaction. Finally, the study showed that a rotating packed bed absorber is an efficient unit for CO2 capture since it enhances mass transfer performance.

Abstract Organelles form membrane contact sites between each other, allowing for the transfer of molecules and signals. Mitochondria-endoplasmic reticulum (ER) contact sites (MERCS) are cellular subdomains characterized by close apposition of mitochondria and ER membranes. They have been implicated in many diseases, including neurodegenerative, metabolic, and cardiac diseases. Although MERCS have been extensively studied, much remains to be explored. To uncover novel regulators of MERCS, we conducted a genome-wide, flow cytometry-based screen using an engineered MERCS reporter cell line. We found 410 genes whose downregulation promotes MERCS and 230 genes whose downregulation decreases MERCS. From these, 29 genes were selected from each population for arrayed screening and 25 were validated from the high population and 13 from the low population. GET4 and BAG6 were highlighted as the top 2 genes that upon suppression increased MERCS from both the pooled and arrayed screens, and these were subjected to further investigation. Multiple microscopy analyses confirmed that loss of GET4 or BAG6 increased MERCS. GET4 and BAG6 were also observed to interact with the known MERCS proteins, inositol 1,4,5-trisphosphate receptors (IP3R) and glucose-regulated protein 75 (GRP75). In addition, we found that loss of GET4 increased mitochondrial calcium uptake upon ER-Ca2+ release and mitochondrial respiration. Finally, we show that loss of GET4 rescues motor ability, improves lifespan and prevents neurodegeneration in a Drosophila model of Alzheimer’s disease (Aβ42Arc). Together, these results suggest that GET4 is involved in decreasing MERCS and that its loss is neuroprotective.

Financial performance in the education sector within the scope of higher education is a description of the extent of success or failure of an organization in carrying out its main duties and functions in order to realize its goals, objectives, mission and vision. Performance measurement is a performance assessment, both financial and non-financial performance measurement, which is a very important component in the management control system. This research made State University of Sriwijaya in South Sumatra Province the object of research where by using observation methods and distributing questionnaires, as many as 195 people had the status of employees involved in financial management (Head of Department, Head of Study Program, Laboratory, Deanery and Financial Administration Faculty). The analytical tool for answering the relationship between participation and budget adequacy on managerial performance uses Structural Equation Modeling (SEM) with Smart-PLS. From the results obtained, there are still errors in filling out the questionnaire with the mean value being greater than the std. deviation and the frequency limit for each answer being identified; there are still criteria for quite agreeing or not being planned and still need attention.

Pharmacists’ job performance is crucial for improving pharmacy services. The purpose of this study was to evaluate the association of emotional intelligence with the job performance of pharmacists in Saudi Arabia. Using social media platforms, we disseminated an online questionnaire to pharmacists licensed to practice in Saudi Arabia between June and July 2022. The questionnaire was filled out by 352 pharmacists. The majority of the participants were women (60.5%) and working as community pharmacists (55.7%). On self-reported emotional intelligence and job performance scales, the respondents scored an average of 5.5 ± 0.9 (out of 7) and 4.0 ± 0.6 (out of 5), respectively. Multiple linear regression analyses revealed that emotional intelligence had a significant relationship with job performance (β = 0.43, p < 0.001). In conclusion, the findings indicated that emotional intelligence may influence the job performance of pharmacists in Saudi Arabia. As the primary objective of every organization is to accomplish the best possible performance, prioritizing emotional intelligence is important. Further research is needed to identify the impact of emotional intelligence on work performance, which could potentially enhance clinical outcomes for patients.

The limitation of laboratory facilities in conducting practical chemistry learning activities has become one of the triggers for less optimal learning processes. Implementation of virtual laboratory simulation becomes a solution to overcome the limited equipment of practicum activities. It is possible to overcome some of the challenges that are currently being experienced in chemistry education by making effective use of virtual laboratories. The primary aim of this research is to investigate the impact of virtual laboratories and self-efficacy on the improvement of problem-solving skills among engineering students in the context of applied chemistry education. The research employs a quasi-experimental design to examine the impact of independent variables on dependent variables. Participants in this study are students enrolled in the Refrigeration and Air Conditioning Engineering and Utility Engineering Technology programs within the Mechanical Engineering Department of Bali State Polytechnic. The study utilized data collection instruments consisting of tests assessing problem-solving skills and questionnaires measuring self-efficacy. The current study employs analysis of covariance (ANCOVA) as a statistical method to examine the hypothesis.The hypothesis testing results show that using virtual laboratories has a better effect than problem-solving skill demonstrations when it comes to electroplating learning activities. The observed correlation between self-efficacy and improved problem-solving skills does not seem to result in a significant impact.

Fasting, a practice with historical roots in various cultures, has recently garnered significant interest in the field of medicine. In this article, we delve into the mechanisms underlying fasting-induced autophagy and its therapeutic applications for spike protein associated pathology. We explore the therapeutic potential of fasting on spike protein-related pathology and the role of interventions to upregulate autophagy, including compounds like spermidine, resveratrol, rapamycin, and metformin. In conclusion, fasting, coupled with an understanding of its nuances, holds promise as a therapeutic intervention for SARS-CoV-2 spike protein related diseases; with broad implications for human health. This review presents the therapeutic possibility of using autophagy to treat spike protein related diseases, and details the interventions to deploy this therapeutic modality.

Fatema Ahmed Ali,1 Ghufran Jassim,2 Zahra Khalaf,3 Manaf Yusuf,4 Sara Ali,5 Nada Husain,6 Fatema Ebrahim6 1Department of Internal Medicine, South West Acute Hospital, Western Health and Social Care Trust, Enniskillen, Northern Ireland, UK; 2Family Medicine Department, Royal College of Surgeons in Ireland — Medical University of Bahrain (RCSI Bahrain), Busaiteen, Kingdom of Bahrain; 3Department of Postgraduate Studies, Royal College of Surgeons in Ireland, Dublin, Ireland; 4Children’s & Adolescent Services, Leeds General Infirmary, Leeds Teaching Hospitals NHS Trust, Leeds, UK; 5Ministry of Health Bahrain, COVID-19 National Team, Sanabis, Kingdom of Bahrain; 6Department of Internal Medicine, Private Health Sector, Manama, Kingdom of BahrainCorrespondence: Ghufran Jassim, Family Medicine Department, Royal College of Surgeons in Ireland — Medical University of Bahrain (RCSI Bahrain), Busaiteen, Kingdom of Bahrain, Email gjassim@rcsi-mub.comObjective: This study aims to explore the prevalence of anosmia and dysgeusia and their impact on COVID-19 patients.Methods: This is a cross-sectional study. Patients diagnosed with COVID-19 between 1st October 2020 and 30th June 2021 were randomly selected from a national COVID-19 registry. COVID-19 cases were diagnosed using molecular testing method which measured the viral E gene. The Anosmia Reporting Tool, and a brief version of the questionnaire on olfactory disorders were used to measure the outcomes via telephone interviews. Data were analysed using SPSS 27 statistics software.Results: A total of 405 COVID-19 adults were included in this study, 220 (54.3%) were males and 185 (45.8%) were females. The mean±SD age of participants was 38.2 ± 11.3 years. Alterations in the sense of smell and taste were reported by 206 (50.9%), and 195 (48.1%) of the patients, respectively. Sex and nationality of participants were significantly associated with anosmia and dysgeusia (p < 0.001) and (p-value=0.001) respectively. Among patients who experienced anosmia and dysgeusia, alterations in eating habits (64.2%), impact on mental wellbeing (38.9%), concerns that the alterations were permanent (35.4%), and physical implications and difficulty performing activities of daily living (34%) were reported.Conclusion: Anosmia and dysgeusia are prevalent symptoms of COVID-19 disease, especially among females. Although transient, anosmia and dysgeusia had considerable impact on patient’s life. Neuropsychological implications of COVID-19 in acute infection phase and prognosis of anosmia and dysgeusia in COVID-19 are areas for further exploration.Keywords: anosmia, taste, smell, COVID-19, dysgeusia, quality of life

The purpose on this research is to analyze and evaluate the survival and growth of the snakehead larvae (Channa striata) with different natural feeds. This study used an experimental method with a Completely Randomized Design (CRD) with 3 treatments and 3 replications. Snakehead larvae were kept in an aquarium containing 15 L of water for 30 days with a density of 2 fish/L. Feeding composition in treatment A (75% Artemia: 25% Rotifer), treatment B (50% Artemia: 50% Rotifer), treatment C (25% Artemia: 75% Rotifer).The result showed that the provision of natural feed with different compositions had no significant effect on the survival of snakehead larvae, and had a significant effect on the growth of the length and absolute body weight of the fish where optimal results were found in treatment A using a natural feed composition of 75% Artemia and 25% Rotifer.

Muhtarum Yusuf,1,2 Yogi Putra Adhi Pradana,1,2 Rosydiah Rahmawati,1,2 Farhat Farhat,3 Etty Hary Kusumastuti,2,4 Jeffi Wahyu Ekoputro5 1Department of Otorhinolaryngology, Head, and Neck Surgery, Airlangga University, Surabaya, East Java, Indonesia; 2Department of Otorhinolaryngology, Head, and Neck Surgery, Dr. Soetomo General Teaching Hospital, Surabaya, East Java, Indonesia; 3Department of Otorhinolaryngology, Head, and Neck Surgery, Sumatera Utara University, Medan, North Sumatera, Indonesia; 4Department of Pathology Anatomy, Airlangga University, Surabaya, East Java, Indonesia; 5Muhammadiyah Surabaya University, Surabaya, East Java, 60113, IndonesiaCorrespondence: Muhtarum Yusuf, Department of Otorhinolaryngology, Head, and Neck Surgery, Airlangga University, Jl. Mayjend Prof. Dr. Moestopo No. 6-8, Surabaya, Jawa Timur, 60285, 60286, Indonesia, Tel +62 031 5501078, Email muhtarum.yusuf@fk.unair.ac.idBackground: Lymph node (LN) metastases were one characteristic of negative progress of NPC patient despite its advanced therapeutic approaches. One mechanism for the occurrence of epithelial to mesenchymal transition (EMT)-mediated metastases is by increasing N-cadherin expression. The purpose of this research is to determine investigating N-cadherin expression against metastatic LN in NPC cases.Methods: Samples were taken by unproportionate stratified random sampling. N-cadherin expression was examined using immunohistochemistry methods. N-cadherin expression was assessed visually by binocular light microscopy. We analyzed these data using Mann–Whitney U-test to examine N-cadherin expression and lymph node metastases.Results: A strong expression was found in N3 group by 63.6%; 27.3% in the N2 group and 9.1% in the N1 group. In patients with NPC N0 or without lymph node metastases, N-cadherin expression is 0%. The expression of N-cadherin is indeed an indicator of the occurrence of lymph node metastases in NPC with a statistically significant analysis of p = 0.026 (p < 0.05).Conclusion: There were correlations between N-cadherin expression and lymph node metastasis on NPC patients.Keywords: N-cadherin, nasopharyngeal carcinoma, cancer, immunohistochemistry

Hamka,1– 3 Mein-Woei Suen,2,4– 6 Yoga Achmad Ramadhan,7 Muhammad Yusuf,8 Jui-Hsing Wang9 1Department of Healthcare Administration Specialty in Psychology, Asia University, Taichung, Taiwan, Republic of China; 2Department of Psychology, Asia University, Taichung, Taiwan, Republic of China; 3Department of Psychology, Universitas Muhammadiyah Kalimantan Timur, Samarinda, Indonesia; 4Gender Equality Education and Research Center, Asia University, Taichung, Taiwan, Republic of China; 5Department of Medical Research, Asia University Hospital, Asia University, Taichung, Taiwan, Republic of China; 6Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan, Republic of China; 7Department Of Psychology, Universitas 17 Agustus 1945, Samarinda, Samarinda, Indonesia; 8Department of Islamic Education, University of Muhammadiyah Malang, Malang, Indonesia; 9Department of Infection, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan, Republic of ChinaCorrespondence: Mein-Woei Suen, Department of Psychology, Asia University, No. 500, Liufeng Road, Wufeng District, Taichung, 413, Taiwan, Republic of China, Tel +886-937704646, Email blake@asia.edu.twPurpose: This study investigated how spirituality as a defensive factor of psychological well-being reduces anxiety among Indonesian Muslims during the pandemic COVID-19.Patients and Methods: Data were collected from 538 Indonesian Muslims through a survey using the spiritual well-being and depression, anxiety and stress (DAS-21) and examined using structural equation model (SEM) analysis.Results: The empirical results indicate that spirituality is a factor that increases happiness, psychological well-being and mental health among Indonesian Muslims.Conclusion: The study also concluded that spirituality positively and significantly reduces anxiety, depression, and stress. This finding confirms that the spiritual beliefs of Indonesian Muslims can play a significant role in improving mental health during pandemic. This study can control mental illness based on spirituality theory and practice.Keywords: anxiety, depression, COVID-19 pandemic, spiritual well-being, stress, structural equation model, SEM

Most mono-metallic catalysts applied in non-oxidative conversion of methane exhibit low catalyst activity and limited selectivity towards useful petrochemicals. In this study, a series of thermally stable and tunable 5.4 wt% metal/support Fe-W-Mo/HZSM-5 catalyst systems were synthesized, characterized, and applied in non-oxidative conversion of methane in a custom-made stainless-steel reactor at various process conditions. Analysis of products from the reactor was done using Shimadzu 2014 gas chromatograph. Varying the amount of Fe, W, and Mo on HZSM-5 greatly influenced catalyst activity in terms of methane conversion and product distribution. When the quantities of Fe and W were increased to 2.25 wt% each and the quantity of molybdenum reduced to 0.9 wt% in the overall 5.4 wt% metal/ HZSM-5 catalyst, the resultant catalyst system became most active in methane conversion (17.4%) at 800 °C. Reducing the quantity of Fe and W each to 1.35 wt% and increasing Mo to 2.7 wt% in the overall 5.4 wt% catalyst, the resultant catalyst system became less selective towards C2 hydrocarbons and coke, but highly selective towards xylene and benzene. Therefore, this study demonstrates that varying metal loading presents an opportunity to tune the 5.4 wt% binary Fe, W, and Mo on HZSM-5 to achieve desired methane conversion and product distribution.

# Background Fever in malaria-endemic countries may be caused by malaria. Malaria infection is a major public health problem with substantial risks for severe morbidity and mortality. It is the leading cause of hospital admissions in children under five years of age worldwide. Despite being managed successfully if diagnosed in a timely way, facilitation of prompt health-seeking behaviour remains a challenge with many children reaching a health facility too late or not at all. We aimed to determine factors associated with prompt health-seeking behaviour among caregivers of children under five with fever in Malawi. # Methods We used data from the 2017 Malawi Malaria Indicator Survey (MMIS). Survey records for 2314 children aged under five years were identified of which 794 had fever in the past two weeks. Multivariable logistic regression analysis was carried out to identify factors associated with prompt health-seeking behaviour, defined as seeking health care the same day or day after the onset of fever. # Results This study reveals that 40.1% of the children under five years presented with fever in the previous two weeks out of which 30.5% were taken for treatment promptly. Public facilities are the most visited places for under five child treatment (68.1%), followed by private drug sellers/pharmacies (17.4) and private/religious facilities (14.5%). Muslims (adjusted odds ratio, aOR=0.54, 95% confidence interval, CI=0.31-0.94) and children aged four years (aOR=0.56, CI=0.34-0.93) were less likely to be taken for treatment promptly compared to Christians and those less than 1 year, respectively. In contrast, children aged two years (aOR=1.71, CI=1.02-2.86) were more likely to be taken for prompt treatment compared to those less than 1 year. # Conclusions Age and religion are factors associated with prompt health-seeking behaviour in Malawi. Health education programs should be intensified to raise awareness among caregivers of the importance of early treatment-seeking regardless of the child's age. Qualitative studies should be done in Malawi to explore different religious beliefs and their influence on health-seeking behaviours.

Clove farmers who are currently still using wood as a footrest mounted on bamboo, more specifically, this invention relates to the design of a new footing design for bamboo stairs using metal clamps as a substitute for wooden steps which are often at risk of breaking. To overcome existing problems, craftsmen need to be given a bamboo ladder (Banggul) for picking clove flowers that is ergonomic and safe using strong and light metal clamps as an ergonomic footrest that can be installed and removed and the distance of the bamboo steps can be adjusted according to anthropometry. the farmer’s knees are high so that when he climbs the bamboo steps his working attitude is natural. The results showed that the workload of farmers reached 127,54 ± 4,90 dpm (heavy workload), while the resting pulse 75,61 ± 0,506 dpm or experiencing an increase 51,935± 2,19 dpm. Musculoskeletal complaints before work 30,32 ± 1,52 and after-work complaints score 51,20 ± 5,021. Fatigue scores after work increased from before work 32,10 ± 3,354 while the fatigue score after work increased to 55,11 ± 4,321.

Methane dehydroaromatization is a viable route for production of carbon and valuable petrochemicals. Unlike Fischer–Tropsch and methanol synthesis processes which have been scaled up to commercial level, development of methane dehydroaromatization to commercial level has been hampered by various challenges. In this work, a 5.4 wt. % trimetallic (Fe‐W‐Mo/HZSM‐5) catalyst has been synthesized, characterized, and applied in catalytic methane dehydroaromatization reaction. A gas chromatograph was used to analyze both liquid and gaseous products from the reactor. Based on 0.0013 moles of reacted methane after 240 min time on stream at 750°C $\mathrm{^\circ C}$, GHSV 960 mlg‐1cath‐1, and atmospheric pressure, a 5.4% Mo/HZSM‐5 catalyst recorded 7.9% methane conversion, 10.6% C2 hydrocarbon selectivity, 51.8% benzene selectivity, 9.8% toluene selectivity and 27.8% coke selectivity. Doping Mo/HZSM‐5 with Fe reduced methane conversion by 4.0%, increased C2 hydrocarbon selectivity by 1.7%, reduced benzene selectivity by 6.2% and increased toluene and coke selectivity by 1.8% and 2.8% respectively. Doping Mo/HZSM‐5 with W increased methane conversion by 7.3%, reduced C2 hydrocarbon selectivity by 2.1%, reduced benzene selectivity by 7.6% and increased toluene and coke selectivity by 0.3% and 9.4% respectively. When iron and tungsten were loaded onto Mo/HZSM‐5, catalytic activity of the tri‐metallic catalyst in methane conversion reduced by 2.0%, C2 hydrocarbon selectivity increased by 2.7%, benzene selectivity reduced by 3.1%, toluene selectivity reduced by 3.7%, and coke selectivity increased by 4.1%. Therefore, this present work demonstrates that metal synergy in a tri‐metallic catalyst plays a role in methane conversion and selectivity towards useful hydrocarbons. [ABSTRACT FROM AUTHOR]

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Pharmacists' job performance is crucial for improving pharmacy services. The purpose of this study was to evaluate the association of emotional intelligence with the job performance of pharmacists in Saudi Arabia. Using social media platforms, we disseminated an online questionnaire to pharmacists licensed to practice in Saudi Arabia between June and July 2022. The questionnaire was filled out by 352 pharmacists. The majority of the participants were women (60.5%) and working as community pharmacists (55.7%). On self-reported emotional intelligence and job performance scales, the respondents scored an average of 5.5 ± 0.9 (out of 7) and 4.0 ± 0.6 (out of 5), respectively. Multiple linear regression analyses revealed that emotional intelligence had a significant relationship with job performance (β = 0.43, p < 0.001). In conclusion, the findings indicated that emotional intelligence may influence the job performance of pharmacists in Saudi Arabia. As the primary objective of every organization is to accomplish the best possible performance, prioritizing emotional intelligence is important. Further research is needed to identify the impact of emotional intelligence on work performance, which could potentially enhance clinical outcomes for patients. [ABSTRACT FROM AUTHOR]

Polylactic acid modified with graphene oxide (PLA/GO) is proposed to interact with ZnO through 6 different schemes. Density functional theory at B3LYP/LANL2DZ level was utilized to calculate total dipole moment (TDM), HOMO/LUMO energy gap (ΔE) and to map the molecular electrostatic potential (MESP). Results indicated that PLA/GO interacted with ZnO through O-atom forming PLA/GO/OZn composite. This composite interacts with methane, hydrogen sulfide, humidity (H2O), carbon dioxide and ethanol. The same gases were supposed to interact further with PLA/GO/Cu2O. Adsorption energy for the interaction between each composite and the proposed gases were calculated. Both PLA/GO/OZn and PLA/GO/Cu2O composites interacted favorably with H2O. Adsorption energy for interaction of other gases with studied structures are generally low compared to H2O. PLA/GO/OZn have adsorption energy slightly higher than that of PLA/GO/Cu2O. PLA/GO/OZn has higher TDM values than those of PLA/GO/Cu2O, indicating a more polar material. Conversely, PLA/GO/Cu2O exhibited larger ΔE values than those of PLA/GO/OZn. TDM and energy gap results for both studied structures indicated good sensing capabilities. Further insights come from analyzing the calculated density of states (DOS) and partial density of states (PDOS). PLA/GO/Cu2O exhibited high peak for copper in its DOS and PDOS spectra compared to zinc and oxygen in case of PLA/GO/OZn. This means a higher density of available electronic states associated with Cu. [ABSTRACT FROM AUTHOR]