Digital Commons Network^™

A Progress Insight Of The Formation Of Hydrogen Rich Syngas From Coal Gasification, Tawanda Matamba, Stefan Iglauer, Alireza Keshavarz

Research outputs 2022 to 2026

This review paper aims to explore the research progress in the formation of hydrogen rich gas from different innovative coal gasification parameters. Promotion effects of parameters such as pressure, temperature, catalyst, coal type, reactor setup, and gasification agents (H2O, O2, supercritical water) were extensively analysed. The formation of hydrogen gas through coal gasification was sub-divided into H2 production from fixed bed gasification system, fluidized bed system, and entrained flow system. The advantages of coal and biomass co-gasification towards clean energy formation was also reviewed. Co-gasification and elevated temperatures, pressures, and steam-carbon ratios were reported to positively influence the yields of …

Effect Of Perceived Job Risk On Organizational Conflict In Tourism Organizations: Examining The Roles Of Employee Responsible Behavior And Employee Silence, Jun Yu, Chaowu Xie, Songshan (Sam) Huang

Research outputs 2022 to 2026

Job risk and organizational conflict create pervasive dilemmas within the tourism industry that significantly concern managers and practitioners. However, little research has informed the relationship between job risk and organizational conflict. Based on conservation of resources theory, this study adopted a multi-study design and examined the effect of perceived job risk on organizational conflict in the tourism industry in both tourist hotels (Study 1, n = 495) and tourist attractions (Study 2, n = 401). In addition, the roles of employee responsible behavior and employee silence in moderating the effect of job risk on organizational conflict were examined. Study 1 …

Ability Of The Australian General Public To Identify Common Emergency Medical Situations: Results Of An Online Survey Of A Nationally Representative Sample, Brennen W. Mills, Michella G. Hill, Alecka K. Miles, Erin C. Smith, Eben Afrifa-Yamoah, David N. Reid, Shane L. Rogers, Moira G. B. Sim

Research outputs 2022 to 2026

Objective: To investigate the Australian general public's ability to identify common medical emergencies as requiring an emergency response. Methods: An online survey asked participants to identify likely medical treatment pathways they would take for 17 hypothetical medical scenarios (eight emergency and nine non-emergency). The number and type of emergency scenarios participants correctly suggested warranted an emergency medical response was examined. Participants included Australian residents (aged > 18 years; n = 5264) who had never worked as an Australian registered medical doctor, nurse or paramedic. Results: Most emergencies were predominately correctly classified as requiring emergency responses (e.g. Severe chest pain, 95 % …

Facial Dermatosis Papulosa Nigra, A Risk For The Development Of Pterygium And Myopia: A Descriptive Cross-Sectional Study In Ghana, Du Bois Asante, Korantema M. Tsegah, Ebenezer Afrifa-Yamoah, Samuel Kyei, Dunyah J. Dzidzor, Reindolf Anokye

Research outputs 2022 to 2026

Background: Dermatosis papulosa nigra (DPN) affects sun-exposed areas such as the face, neck, and trunk. The prevalence of pterygium and myopia in DPN patients in Ghana has not been studied. In this study, we examined the risk and protective factors for pterygium and myopia in DPN patients. Materials and Methods: The study involved 100 participants with facial DPN. A standard ophthalmic exam was performed using a portable slit lamp and a 3.5 X magnified loop. Participants completed a closed-ended questionnaire. Logistic regression was used to summarize the level of association between DPN, myopia, and pterygium, as well as demographic factors …

Carlo Barone (1955–2022), Adrian Walter

Soundboard Scholar

Carlo Barone (1955–2022) was a pioneering performer, researcher, and educator in the nineteenth-century performing practice of the guitar. In this tribute, his friend and collaborator Adrian Walter describes Barone's career.

Kekuasaan Peradilan Militer Mengadili Warga Sipil Dalam Tinjauan Hukum Tata Negara Darurat, Denis Kurniawan

Jurnal Hukum & Pembangunan

Abstract

Military Courts in general are courts devoted to dealing with cases of military soldiers, both concerning criminal matters, military administration, and claims for compensation as a result of criminal offenses. The special nature of military justice is due to the fact that military soldiers have different traditions from civil society regarding the existence of military discipline in their activities, and there are acts that are only known within the military environment, but are not generally applicable. However, a military court in an emergency situation that threatens to be projected as the last court, if the existing judiciary is to …

Issues In Transcribing German Lute Tablature, Kurt Dorfmüller

Soundboard Scholar

Kurt Dorfmüller's essay is from Le luth et sa musique, a volume of proceedings from the 1957 research symposium of the same name that gathered a number of eminent scholars at the beginning of the modern era of lute scholarship and performance revival. In it, he inquires into the unique nature of German lute tablature, its mostly latent capacity for expressing polyphony, and the types of music for which it is more or less suited. He ends by proposing a set of guidelines for establishing a "mainstream practice" for transcription not only from German tablature but also from tablature …

Determination Of Effectiveness Of Combined Biological And Physicochemical Treatment Of Vinasse, Mahir Mohammed Said

Tanzania Journal of Engineering and Technology (TJET)

Combined biological and Physicochemical treatment method was used to treat vinasse using microorganisms (Aspergillus niger (fungi) and Bacillus subtilis (bacteria)), coagulants (aluminium sulphate (Al2(SO4)3) and iron III chlorides (FeCl3)) and followed by filtration. Three factors; coagulant type, type of microorganism and coagulant concentration was analysed using full factorial design (2n) with replication, on their percentage removal of Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), Total Suspended Solids (TSS) and turbidity. Pareto chart and regression analysis with a 95% confidence interval (5% significant level) were used to analyse the results using MINITAB 22 (current version). Initially, the vinasse had (COD), …

Racism And Resilience: Counter-Narratives Of Asian International College Students In The Age Of Covid-19, Katrina Liu, Richard Miller, Sharolyn D. Pollard-Durodola, Lei Ping

The Qualitative Report

Using Asian Critical Race Theory and Resilience Theory, this qualitative study explores how Asian international college students experienced racism before and after the eruption of the COVID-19 pandemic and how they developed and used resilience to counteract that racism. Eleven Asian participants shared their counter-narratives through semi-structured interviews. Results reveal that, before the pandemic, participants were regularly subjected to racist acts and attitudes grounded in a deficit view of Asians that treated them as inscrutable foreigners, blamed them as individuals for perceived shortcomings in their home countries, dismissed their expertise outside of technical STEM fields, and failed to recognize their …

A Comparison Of A Radial Basis Function Neural Network With Other Methods For Estimating Missing Values In Univariate Time Series, Wasn Saad Mahdi, Firas A. Mohammed Almohana

Journal of Economics and Administrative Sciences

Missing values in the time-series data set have an impact on the correct decision-making in the future. Since complete data helps to obtain high accuracy in the estimation process, the reason for missing values is a malfunction of the measuring device or an error in the data entry process by the person. The research aims to compare the radial basis function methods with other methods to estimate missing values in univariate time series data. the simulation method was used to compare the methods to estimate the missing values, and that was used the Box-Jenkins model AR(1) once with the value …

Robust Estimates For One-Parameter Exponential Regression Model, Ahmed Joudah Irshayyid, Rabab Abdul Rida Al-Bakri

Journal of Economics and Administrative Sciences

One-parameter exponential regression is one of the most common and widely used models in several fields, to estimate the parameters of the one-parameter exponential regression model use the ordinary least square method but this method is not effective in the presence of outlier values, so robust methods were used to treat outlier values in the one-parameter exponential regression model are to estimate the parameters using robust method (Median-of-Means, Forward search, M-Estimation), and the simulation was used to compare between the estimation methods with different sample sizes and assuming four ratios from the outliers of the data (10%, 20%, 30%, 40%). …

The Effect Of Workplace Respect On Employee Performance: A Survey Study In Abu Ghraib Dairy Factory, Atheer Abdullah Mohammed

Journal of Economics and Administrative Sciences

This paper aims to explain the effect of workplace respect on employee performance at Abu Ghraib Dairy Factory (AGDF). For achieving the research aim, the analytical and descriptive approach was chosen using a questionnaire tool for collecting data. It covers 22 items; ten of them for the workplace respect variable and twelve items for the employee performance variable. The research population involved human resources who work at AGDF in Baghdad within two administrative levels (top and middle). We conducted a purposive stratified sample approach. It was distributed 70 questionnaire forms, and 65 forms were received. However, six of them had …

Estimating Parameters Via L-Linear Method For Second-Order Regression Of Polynomial Model, Mahdi Younis Mohammad, Ahmed Dheyab Ahmed

Journal of Economics and Administrative Sciences

In this paper, estimation of the parameters of the second-order polynomial regression model was obtained when the error is distributed it is distribution long-tailed symmetric because of the presence of outliers and using Maximum Likelihood, and L-Method. simulation is illustrated, and Mean Squared Error (MSE) is used as an evaluation criterion. This research includes six sample sizes (50,60,80,90,100,120) and includes the application of the methods of the medical data representing diabetes.

Security And Confidentiality Of Information Under The Application Of Cloud Accounting Compared To Traditional Accounting, Kawa Wali, Bnar Karim Darwish, Shadan Jabbar Abdulfattah

Journal of Economics and Administrative Sciences

Traditional matrix-based methods and common statistical formulas often require extensive time, effort, and the organization of numerous complex tables. The authors propose this alternative method as a more efficient and user-friendly tool for researchers. By reducing the mathematical burden of manual calculations in high-factor experiments, the study contributes a practical advancement to the field of experimental design, demonstrating through application that the suggested method maintains accuracy while significantly enhancing computational ease compared to standard procedures.

An Evaluation Of Environmental Performance According To The International Standard (Iso14001: 2015) In A Field East Of Baghdad / A Case Study In The Midline Oil Company, Ekhlas Jasim Resen, Mohammed Sadiq Al-Doori

Journal of Economics and Administrative Sciences

EMS in accordance with ISO 14001: 2015 is considered an entry point to reduce environmental impacts, especially the effects resulting from the oil industry, which is the main source of environmental pollution and waste of natural resources, since the second revision of the standard took place in September 2015. The problem of the research was manifested in the weakness in understanding the correct guidelines that must be followed in order to obtain and maintain the standard. The purpose of this research was to give a general picture of what is behind ISO14001:2015 and how it is possible to create a …

Improving Customer Value Through The Integral Of Techniques Quality Function Deployment And Value Engineering, Zaid Mohammed A. Al-Adhami, Maha Abdul Kareem H. Alrawi

Journal of Economics and Administrative Sciences

Health service institutions suffer from challenges resulting from the great changes that our world is witnessing today. This has affected the value that these institutions add to the patient. This research aims to identify the effect of integrating each of the techniques of QFD and value engineering for the health services provided to the patient to improve the value for him and thus obtain his satisfaction, which is reflected in the reputation of the surveyed hospitals. To achieve this, the descriptive analytical method was used, and a questionnaire was designed to collect the necessary data, which represents a measure of …

Using Some Estimation Methods For Mixed-Random Panel Data Regression Models With Serially Correlated Errors With Application, Musaab Amer Rajab, Mohammed Sadiq Al-Doori

Journal of Economics and Administrative Sciences

This research includes the study of dual data models with mixed random parameters, which contain two types of parameters, the first is random and the other is fixed. For the random parameter, it is obtained as a result of differences in the marginal tendencies of the cross sections, and for the fixed parameter, it is obtained as a result of differences in fixed limits, and random errors for each section. Accidental bearing the characteristic of heterogeneity of variance in addition to the presence of serial correlation of the first degree, and the main objective in this research is the use …

Are You Her Nanny?, Ann Thomson

Research Papers

This project aims to share the experience of a South Korean immigrant woman in the United States in her journey of adopting a White embryo through the medium of a photographic essay. In doing so, the objective is to explore how the changing ethnoscape of the world and Assisted Reproductive Technology (ART) is bringing the world together, the ways in which it has created a provision for an inversion of adoption norms simultaneously enabling mother-child bonding experiences from conception to childbirth, which is largely lacking in traditional methods of adoption. Although there are benefits and possibilities created via ART, any …

Seemingly Unrelated Regression Model To Measure The Profitability Of Some Iraqi Private Commercial Banks With Presence Of Outliers, Dhafer T. Mohammed Saeed, Saja Mohammad Hussein

Journal of Economics and Administrative Sciences

A seemingly uncorrelated regression (SUR) model is a special case of multivariate models, in which the error terms in these equations are contemporaneously related. The method estimator (GLS) is efficient because it takes into account the covariance structure of errors, but it is also very sensitive to outliers. The robust SUR estimator can dealing outliers. We propose two robust methods for calculating the estimator, which are (S-Estimations, and FastSUR). We find that it significantly improved the quality of SUR model estimates. In addition, the results gave the FastSUR method superiority over the S method in dealing with outliers contained in …

Evaluation Of The Strategic Performance Of The State Board Of Antiquities And Heritage/Case Study, Rasha Fakher Abd Al-Hassan, Hanadi Seqar Maqtof

Journal of Economics and Administrative Sciences

This research aims to the possibility of evaluating the strategic performance of the State Board for Antiquities and Heritage (SBAH) using a balanced scorecard of four criteria (Financial, Customers, Internal Processes, and Learning and Growth). The main challenge was that the State Board use traditional evaluation in measuring employee performance, activities, and projects. Case study and field interviews methodology has been adopted in this research with a sample consisting of the Chairman of the State Board, 6 General Managers, and 7 Department Managers who are involved in evaluating the strategic performance and deciding the suitable answers on the checklists to …

Challenges To Building Sustainability; Case Study Of Green Building Implementation In Abubakar Tafawa Balewa University Bauchi, Nigeria, Sani Inusa Milala, Audu Danladi, Shuaibu H. Manga, Inusa Ibrahim

Journal of Environmental Science and Sustainable Development

Abubakar Tafawa Balewa University (ATBU) has become the tip of the iceberg since technology globalization has created a welcoming environment for green construction. However, there are several roadblocks to overcome, this includes barriers to technology. Dependence on technology stifles the autonomous growth of one's technology. This implementation of sustainable green building has been implemented in ATBU such as green construction, financing, among others. The study has the primary aim of assessing the impediment to the sustainable implementation of green building practices in ATBU. Quantitative research design is adopted in this study where questionnaire survey strategy was used to collect data. …

Taxonomic Notes On Macugonalia Semiguttata (Signoret, 1853) With First Descriptions Of The Male And Female Terminalia (Insecta: Hemiptera: Cicadellidae: Cicadellini), Nathalia Hiluy Pecly, Victor Quintas, Gabriel Mejdalani

Neotropical Biodiversity

The male and female terminalia of the poorly known sharpshooter Macugonalia semiguttata are described and illustrated for the first time based on specimens from a mountainous region in Rio de Janeiro State, southeastern Brazil (Atlantic Forest). External characters of the head, thorax, and abdomen of this species are also described and illustrated. Macugonalia semiguttata is compared with other seven similar species of the diverse genus Macugonalia Young, 1977. Among the 28 known species of this genus, it is apparently closely related to Macugonalia dallasi (Signoret, 1853), Macugonalia geographica (Signoret, 1855), and Macugonalia elegantula Cavichioli, 2004. Specimens of M. semiguttata were …

Spatial And Seasonal Variation In Polychaete Communities According To Their Trophic Categories In Southwest Tobago, West Indies, Attish Kanhai

Neotropical Biodiversity

Bon Accord Lagoon (BAL), Tobago is home to a Thalassia testudinum (K.D. Koenig, 1805) dominated seagrass community and polychaetes usually show an affinity to seagrass beds compared to other environments. The objectives of this study were to investigate the polychaete community associated with the Thalassia beds in BAL, determine seasonal variation, and compare with the neighbouring hard bottom polychaete community in Mt. Irvine Bay (MIB). Benthic macroinvertebrates were sampled using a 15 cm diameter corer at a depth of 10 cm. Six stations were sampled during the wet and dry seasons of 2018. Samples were sieved in the field using …

The Call Of Rhinella Festae (Peracca, 1904) (Anura: Bufonidae) From Morona Santiago, Ecuador, Diego Batallas, Jorge Brito

Neotropical Biodiversity

We describe for the first time the call of Rhinella festae (Peracca, 1904), recording it in captivity inside a plastic bag. The call is composed of 1 to 2 multi-pulsed notes (2–5 pulses), has an average duration of 0.72 s, and a dominant frequency of 1.40 kHz. This species is characterized by the absence of vocal slits and sacs, so the emission of this call would be considered unusual and uncommon. In addition to the purpose of improving the knowledge of species suggested as mutes, we have also compiled information from other anuran species that emit sounds with the absence …

Extended Vocal Repertoire Of The Bromeligenous Treefrog Scinax Belloni (Anura:Hylidae), Davi Lee Bang, Izadora Vidigal, Pedro Marinho, Ariovaldo Antonio Giaretta

Neotropical Biodiversity

Scinax belloni is a small bromeligenous treefrog that lives in the mountainous areas of southeastern Brazil. The call of the species has been previously described, but recently gathered data revealed an unreported acoustic unit that we describe herein. Intraspecific variation within the species call was also updated based on an increased sample size. The call is composed of two types of multipulsed notes: a short note, which is in agreement with the previous description, and a trill note that is emitted in association with the short note. The trill note was likely not reported in the previous description because of …

Parasitoids Of Dasiops (Diptera: Lonchaeidae) In Sweet Granadilla Orchards In An Andean Forest Of Peru, Paolo Salazar Mendoza, Yoseph Ojeda-Enriquez, Carmen Salcedo-Velarde

Neotropical Biodiversity

We report hymenopteran larval and pupal parasitoids of the Dasiops species in sweet granadilla (Passiflora ligularis J.) orchards in a Peruvian Andean forest. Flower bud and fruit samples infested by Dasiops were collected in three orchards from Oxapampa (Pasco, Peru). In addition, we exposed non-parasitized Dasiops pupae at ground level to verify the presence of pupal parasitoids. We identified Utetes anastrephae (Viereck) and Opius sp. (Hymenoptera: Braconidae) on flower buds infested b.y Dasiops inedulis Steyskal. However, Aganaspis pelleranoi (Brèthes) (Hymenoptera: Figitidae) emerged from D. frieseni pupae reared from unripe fruits. Also, the pupal parasitoids Pachycrepoideus vindemmiae (Rondani) (Hymenoptera: Pteromalidae) and …

Littoral Macrobenthic Communities And Water Quality In El Pañe Reservoir, Arequipa, Peru, Pastor Coayla-P, André Alexander Cheneaux-D, Claudia Viviana Moreno-S, Cynthia Elizabeth Cruz-R, Eusebio Walter Colque-R, Cristina Damborenea

Neotropical Biodiversity

High Andean ponds and reservoirs are among the least-studied environments. We evaluated the composition of littoral macrobenthos and how it is affected by the physicochemical conditions of the water in El Pañe reservoir (Peru), located at 4,550 m.a.s.l. Samples were taken between November 2017 and October 2018 from three zones in the reservoir: low (downstream), middle and high (upstream); two of these zones with fish farms (low and middle) and one zone without fish farms (high). The following physicochemical parameters of the water were measured: dissolved oxygen, conductivity, pH and temperature. The macrobenthic community was analysed through diversity indices such …

Within-Colony Nest Distribution Of A Waterbird Mixed Colony In A Small Alluvial Forest At El Salvador, Diego José Arévalo Ayala

Neotropical Biodiversity

Breeding in colonies is a defining characteristic of many waterbird species and several behavioural and habitat traits determine nest-site selection. Although there is relatively extensive literature on the topic, information on the within-colony distribution of nests lacks for mixed colonies, especially for ardeid-cormorant associations and in regions such as Central America. Here, geospatial data on vegetation associated with a mixed colony, established in a small alluvial forest northwest of El Salvador and collected from June to November 2015 was assessed to identify some behavioural and habitat features that could influence nest-site selection. Four ardeid species (Ardea alba, Egretta thula, Bubulcus …

Use Of Artificial Nest Boxes By Two Species Of Small, Arboreal Mammals In Ecuadorian Tropical Dry Forest, Gabriel A. Brito Vera, Jaime A. Salas, George E. Heimpel, Mariana Bulgarella

Neotropical Biodiversity

The nest structure of two species of small mammals, Marmosa simonsi and Rhipidomys latimanus were recorded for the first time. Nests were found inside artificial nest boxes in a tropical dry forest remnant ecosystem in Western Ecuador. We described the nests and categorized them as rearing nest, permanent resting nest and transient refuge, depending on their intended use. Artificial nest boxes provide an optimal place for pup rearing and resting for these small mammals. These nest sites can be useful for ecological studies of behavior and habits of elusive, poorly-known mammalian species.

First Record Of A Population Of Rose-Ringed Parakeet (Psittacula Krameri) In Argentina, Mario L. Chatellenaz, Juan M. Fernandez, María L. Thomann

Neotropical Biodiversity

The Rose-ringed parakeet (Psittacula krameri), native to India, South Asia, and Sub-Saharan Africa, is considered one of the most invasive bird species. It has been recorded in 37 countries, in some of which it was originally introduced as a pet. It has become an agricultural pest and a threat to native birds in many countries. In South America, populations of this species were only known to exist in Venezuela and the Caribbean Islands. We report the finding of a small reproductive population of Rose-ringed parakeets in the city of Corrientes, in northeastern Argentina. We provide information on its observed feeding …