bluuebunny/crossref_metadata_2025 huggingface dataset:
Low-Level Laser and TENS Therapy Assessment for the Treatment of Temporomandibular Joint Disorder
Authors: Mishra Silpiranjan , Bajoria Atul Anand , Sangamesh NC , Swain Ajit Kumar , Sahoo Sanjay Kumar , Mohapatra Abinash
Published: May 2024

ABSTRACT

Introduction:

The most prevalent conditions in the population are temporomandibular disorders (TMDs), which are linked to a number of morbidities. A number of treatment options have been proposed, and some of the most successful ones include low-level laser therapy (LLLT) and transcutaneous electrical nerve stimulation (TENS) therapy.

Objectives:

The purpose of this study was to examine the effectiveness of two therapies—TENS treatment and LLLT—in the management of morbidities related to temporomandibular joint (TMJ) disorders.

Materials and Methods:

Based on inclusion and exclusion criteria, a total of 50 patients who had been sent to the oral medicine outpatient department and had been pre-diagnosed with TMJ disorders were randomly assigned to two groups, with 25 patients in each: Group I received TENS therapy, while Group II received LLLT. The acquired data was assessed statistically.

Result:

Both groups showed a substantial decrease in discomfort, an increase in mouth opening, and a decrease in muscular tenderness when compared to within groups. LLT was more effective than TENS for TMD treatment.

Conclusion:

While TENS and LLLT both had good results, LLLT appeared to outperform TENS therapy in terms of muscle tenderness factors.
Assessment of Upper and Lower Airway Dimensions in Skeletal Class I and Class II Subjects Having Different Growth Patterns – A Cross-Sectional Cephalometric Study
Authors: Aphale Hrushikesh S. , Nagmode Sunilkumar L. , Surana Sejal P. , Chaugule Akshay S. , Shinde Vivek J. , Sahane Dipak S.
Published: May 2024

ABSTRACT

Objectives:

To compare the airway dimensions among subjects having skeletal class I and class II patterns considering their hypodivergent, normodivergent, and hyperdivergent growth patterns and to determine any variations between them.

Methods and Materials:

The study consisted of 156 pre-treatment lateral cephalograms of subjects aged above 18 years. The sagittal skeletal pattern was used to separate the sample into two groups. Each group was further subdivided into hypodivergent, normodivergent, and hyperdivergent growth patterns. The upper and lower airway dimensions were measured in all the subgroups. The intragroup comparison of class I and class II was performed with 1-way ANOVA and post-hoc test. Using the independent t-test, the upper and lower airways were compared between groups.

Results:

Comparison of subjects according to the growth pattern showed that vertical growth patterns have statically significantly reduced upper and lower airway dimensions as compared to the average and horizontal growth patterns in both skeletal class I and class II subjects. However, the subjects with skeletal class II hyperdivergent growth patterns have significantly reduced lower airway dimensions than those with skeletal class I having hyperdivergent growth patterns.

Conclusion:

Individuals with skeletal class I and class II patterns characterized by hyperdivergent growth exhibit reduced upper and lower pharyngeal airways. The sagittal skeletal type also plays a role in influencing the dimensions of the upper and lower airways.
Rotational Control and Retraction of Maxillary Canine Using Self-Ligating Empower Brackets: An In Vivo Study
Authors: Alla Ramya , Chandrika P. Sindhu , Ronanki Susanthi , Duddu Yesuratnam , Shalini G.N , Naziya Sheik
Published: May 2024

ABSTRACT

Introduction:

Interest in self-ligating brackets is generally smoother and more comfortable.

Objectives:

To compare rate of retraction and rotational control of maxillary canines with self-ligating MBT brackets on one side and conventional MBT brackets on the other side of the maxillary arch.

Materials and Methods:

Ten subjects with a mean age range of 18 to 25 years were selected. For each patient in the maxillary arch, bonding was performed with 0.022-inch slot conventional MBT brackets on one side and 0.022-inch slot self-ligating MBT brackets on the other side. Stainless steel 0.009-inch ligatures are used for conventional ligation. Retraction of canines was performed with 0.019 × 0.025-inch stainless steel wires using NiTi closed coil springs with eyelets of 12 mm and 9 mm. The force of retraction was measured using a dynamometer. Dental casts were made at each time interval to record the canine retraction rate (in mm) and rotation (in degrees).

Results:

The mean difference in the retraction rate was 0.045 mm/month between self-ligating and conventional brackets, respectively (P > 0.05). The mean difference of total rotation of canines with self-ligating and conventional brackets was 1.5°, which gives evidence that there was less rotation of canines with self-ligating brackets.

Conclusion:

There was no statistically significant difference in canine retraction rates between conventional and self-ligating brackets. Secure ligation with the self-ligating brackets showed better rotational control than the conventional brackets.
Prescribing Cold: The Science and Practice of Cryotherapy in Dental Medicine
Authors: Parihar Anuj Singh , Hotchandani Kamal , Sajjanar Arunkumar , Parakh Sonam , Tiwari Himani , Bhuyan Lipsa
Published: May 2024

ABSTRACT

Cryotherapy, or the use of low temperatures for medical treatment, has gained interest in dentistry for its potential therapeutic benefits. This review article delves into the rationale, applications, advantages, and limitations of cryotherapy in dentistry, shedding light on its future prospects in the field.
Exploring the Benefits of Antioxidants in Dentistry: New Frontiers in Oral Care
Authors: Parihar Anuj Singh , Dutta Brahmananda , Yadav Diksha , Narayanan M Sowmiya , Sahney Tanu , Nandamuri Sharmila
Published: May 2024

ABSTRACT

In recent years, antioxidants have gained significant attention in the field of dentistry due to their potential therapeutic benefits in various dental conditions. This comprehensive review aims to provide a detailed analysis of the role of antioxidants in dentistry, focusing on their mechanisms of action, clinical applications, and future prospects. The review highlights the potential of antioxidants in preventing and managing oral diseases, promoting oral health, and enhancing the outcomes of dental treatments.
Application Big Data and Intelligent Optimization Algorithms on Teaching Evaluation Method for Higher Vocational Institutions
Authors: Huang Meijuan
Published: May 2024

INTRODUCTION: The optimization of the teaching evaluation system, as an essential part of teaching reform in higher vocational colleges and universities, is conducive to the development of higher vocational colleges and universities' disciplines, making the existing teaching more standardized.OBJECTIVES: Aiming at the problems of inefficiency, incomplete index system, and low assessment accuracy in evaluation methods of higher vocational colleges and universities.METHODS: Proposes a teaching evaluation method for higher vocational colleges and universities with a big data mining algorithm and an intelligent optimization algorithm. Firstly, the teaching evaluation index system of higher vocational colleges and universities is downgraded and analyzed by using principal component analysis; then, the random forest hyperparameters are optimized by the grey wolf optimization algorithm, and the teaching evaluation model of higher vocational colleges and universities is constructed; finally, the validity and stability of the proposed method is verified by simulation experimental analysis.RESULTS: The results show that the proposed method improves the accuracy of the evaluation model.CONCLUSION: Solves the problems of low evaluation accuracy, incomplete system, and low efficiency of teaching evaluation methods in higher vocational colleges.
Higher Chow cycles on a family of Kummer surfaces
Authors: Sato Ken
Published: May 2024

We construct a collection of families of higher Chow cycles of type

$(2,1)$

on a two-dimensional family of Kummer surfaces, and prove that for a very general member, they generate a subgroup of rank

$\ge 18$

in the indecomposable part of the higher Chow group. Construction of the cycles uses a finite group action on the family, and the proof of their linear independence uses Picard–Fuchs differential operators.
Application of Genomic Medicine in Africa: 14th Conference of the African Society of Human Genetics and the 2nd International Congress of the Moroccan Society of Genomics and Human Genetics, Rabat, Morocco 2022
Authors: Fakhkhari Meryem , Salih Ikram , Maazaz Najwa , Nembaware Victoria , Munung Nchangwi Syntia , Matimba Alice , Chala Sanaa , Belmouden Ahmed , Chappell Karon , Mutesa Leon , El-Kamah Ghada , Oumzil Hicham , Baassi Larbi , Abbas Younes , Alimohamed Mohamed Zahir , Ramsay Michele , Williams Scott , Benabdellah Karim , Idaghdour Youssef , Wonkam Ambroise , Sadki Khalid
Published: May 2024

The 14th African Society of Human Genetics (AfSHG) Morocco Meeting and 2nd International Congress of the Moroccan Society of Genomics and Human Genetics (SM2GH), held in Rabat, Morocco, from December 12 through 17, 2022, brought together 298 attendees from 23 countries, organized by the AfSHG in collaboration with the SM2GH. The conference’s overarching theme was “Applications of Genomics Medicine in Africa,” covering a wide range of topics, including population genetics, genetics of infectious diseases, hereditary disorders, cancer genetics, and translational genetics. The conference aimed to address the lag in the field of genetics in Africa and highlight the potential for genetic research and personalized medicine on the continent. The goal was to improve the health of African populations and global communities while nurturing the careers of young African scientists in the field. Distinguished scientists from around the world shared their recent findings in genetics, immunogenetics, genomics, genome editing, immunotherapy, and ethics genomics. Precongress activities included a 2-day bioinformatics workshop, “NGS Analysis for Monogenic Disease in African Populations,” and a Young Investigators Forum, providing opportunities for young African researchers to showcase their work. The vast genetic diversity of the African continent poses a significant challenge in investigating and characterizing public health issues at the genetic and functional levels. Training, research, and the development of expertise in genetics, immunology, genomics, and bioinformatics are vital for addressing these challenges and advancing genetics in Africa. The AfSHG is committed to leading efforts to enhance genetic research, coordinate training, and foster research collaborations on the continent.
Architecture Framework for Unmanned Systems
Authors:   AS-4JAUS Joint Architecture for Unmanned Systems Committee
Published: May 2024

This SAE Aerospace Information Report (AIR) describes the Architecture Framework for Unmanned Systems (AFUS). AFUS comprises a Conceptual View, a Capabilities View, and an Interoperability View. The Conceptual View provides definitions and background for key terms and concepts used in the unmanned systems domain. The Capabilities View uses terms and concepts from the Conceptual View to describe capabilities of unmanned systems and of other entities in the unmanned systems domain. The Interoperability View provides guidance on how to design and develop systems in a way that supports interoperability.
Chemical constituents of the essential oils from Uvariodendron mbagoi
Authors: R. Juma Slim , C. Joseph Cosam , S. Nyandoro Stephen
Published: May 2024

Several Uvariodendron species are known for their scented leaves and stem bark, hence this study. The leaves, twigs, stem and root barks of the newly described Uvariodendron species, U. mbagoi Dagallier and Couvreur from Kwedijela forest (KF) and Kimboza Forest Reserve (KFR) collected in dry and wet seasons, were steam distilled to yield essential oils that was more abundant in the root bark (2.07-3.85%) than in the leaves, twigs and stem bark (0.09-0.71%). The essential oils from the root bark collected from KF in the wet season (2.07%) was slightly lower than that obtained from the plant part collected from the same locality during the dry season (3.85%). GC-MS analysis indicated that linalool was the most prominent constituent of the leaf (82.18%, KF) and (98.86%, KFR), twig (89.66%, KFR), and stem bark (97.97%, KFR) oil while methyl eugenol (41.08%, KFR) and elemicin (39.28%, KFR) were the major constituents of the root bark oil. The essential oil from the leaves, stem bark, twigs and root bark of U. mbagoi exhibited mild to moderate potency when screened for antioxidant, antibacterial, and protease (trypsin) inhibitory activities.
KEY WORDS: Uvariodendron mbagoi, Annonaceae, Essential oil, Linalool, Elemicin, Methyl eugenol
Bull. Chem. Soc. Ethiop. 2024, 38(3), 1027-1035.                                                   
DOI: https://dx.doi.org/10.4314/bcse.v38i4.17
Green chemistry approach for rapid synthesis of indol-3-yl-4H-pyran derivatives, biological assessments, and toxicological activities against Cowpea aphid (Aphis craccivora)
Authors: M. Abd El-Lateef Hany , S. Kamel Moumen , Yahya Abdullah Alzahrani Abdullah , M. Khalaf Mai , Gouda Mohamed , Abd El Aleem Ali Ali El-Remaily Mahmoud
Published: May 2024

From diverse or indole-3-carbaldehyde, certain unique indol-3-yl-4H-pyran derivatives were generated by condensing with different nucleophiles. IR, 1HNMR, and elemental studies have all confirmed their chemical structures. The green catalyst for the formation of indol-3-yl-4H-pyran derivatives is a zinc-linked amino acid complex [Zn(L-proline)2]. Furthermore, the environmental friendliness of this synthetic technique was investigated by assessing the reusability of the Zn(L-proline)2 complex over five consecutive cycles with no significant loss of catalytic activity. This novel process has showed substantial advantages in terms of safety, simplicity, stability, mild conditions, a short reaction time, excellent yields, and good purity without the use of organic solvents. The antibacterial properties of the compounds produced were investigated and discovered to be promising. To determine whether compounds are appropriate as possible insecticidal agents, the toxicological activity of the synthesized compounds against Cowpea aphid, Aphis craccivora, was tested using leaf dip bioassay technique toxicity studies performed in the laboratory.
KEY WORDS: One pot synthesis, Zn(L-proline)2, Indole-3-carbaldehyde, Aqueous media, Microwave irradiation, Cowpea aphid, toxicological activity
Bull. Chem. Soc. Ethiop. 2024, 38(4), 1077-1090.                                                    
DOI: https://dx.doi.org/10.4314/bcse.v38i4.21
Corrosion, wear and machinability studies on scrap aluminium alloy wheel based metal matrix composite
Authors: P. Ravi V. , A. Sankaran R.
Published: May 2024

Recycled materials, especially scrap aluminum alloy wheels with reinforcement castings, are gaining applications in various fields such as aerospace, naval, military, and automobile. In this research, Honda car alloy wheels are stir-cast with 5% alumina as reinforcement and subjected to corrosion, wear, and machinability studies. Corrosion studies were conducted to evaluate the corrosion current density (ICorr), corrosion potential (ECorr), and corrosion rate for the cast aluminum metal matrix composite. The wear studies with different loads, i.e., 50 N, 60 N, 70 N, and 80 N, were performed on the specimen and investigated the coefficient of friction, frictional force, and pin temperature. The sliding load has a significant effect on wear performance, and for the sliding load of 80 N, the wear recorded was 2574.83 µm. The electrochemical machinability studies with voltage, duty cycle, and concentration of citric acid electrolyte are performed on the machining rate and surface corrosion factor. Analysis of the electrochemical machining process with PROMETHEE-II shows that 7 V, 60% duty cycle, and 30 g/L electrolyte concentration are estimated to be the best combination for a higher machining rate and a lower surface corrosion factor.
KEY WORDS: Alumina, Machining rate, Nyquist plot, Electrochemical machining, PROMETHEE-II
Bull. Chem. Soc. Ethiop. 2024, 38(4), 1163-1175.                                                         
DOI: https://dx.doi.org/10.4314/bcse.v38i4.27
Effect of surfactants (cetyl trimethyl ammonium-bromide, ethyl di-tetra amine and polyacrylamide) on the synthesis of zinc oxide for photocatalytic application
Authors: Degefu Weldekirstos Hulugirgesh , Zerie Muluken , Manaye Daniel , Tedla Abebe , Negash Asfaw
Published: May 2024

In this work, we report the effect of cetyl trimethyl ammonium bromide (CTAB), ethyl di-tetra amine (EDTA) and polyacrylamide as surfactants on synthesis of zinc oxide for photocatalytic application. The ZnO nanoparticles were synthesized with and without the surfactants and characterized using powder X-ray diffraction (PXRD), and Fourier transform infrared spectroscopy (FTIR). In addition to this, the morphology of zinc oxide prepared in the absence and presence of these surfactants investigated through scanning electron microscopy (SEM). As confirmed from XRD and FTIR characterization results, the use of different surfactants did not affect the composition of ZnO nanomaterials. The photocatalytic activities were investigated by the degradation of methylene blue (MB) dye under sunlight irradiation. To optimize the effects of operational parameters, the study was carried out as a function of dye concentration, catalyst dose, and pH on the degradation efficiency of the photocatalysts. The optimum values of catalyst dose, dye concentration and pH of solution were found to be 0.09 g, 5 mg/L and 10, respectively. The ZnO nanomaterials prepared with CTAB surfactant showed highest degradation efficiency of 98% indicating potential application for practical decontamination of wastewater from toxic organic pollutants.
KEY WORDS: Surfactants, Zinc oxide nanoparticles, Photocatalysis, Methylene blue
Bull. Chem. Soc. Ethiop. 2024, 38(4), 923-935.                                                               
DOI: https://dx.doi.org/10.4314/bcse.v38i4.9
Assessment of chemical characteristics of bottom sediments of Zobe Dam Reservoir, Katsina State, Nigeria
Authors: Ibrahim Adesoji .A , Jolly Byami . A. , Tawey Mam. D
Published: May 2024

Zobe Dam is one of the silted dams in Nigeria. It is located in the Dustin-ma area in Katsina State northwestern Nigeria. The bottom reservoir sediments of the dam were sampled during the bathymetric studies of the reservoir. The objectives are to: determine the status of mineral elements and their distribution; measure the anomalous elemental concentration, as a tool in search for solid mineral deposits; and determine the usefulness of such sediments when dredged out. A total of 15 samples were obtained and analysed at Federal Steel Council laboratory in Kaduna using a Scanning Electron Microscope which was then transferred electronically to EDX that revealed the elemental constituents of the samples in mg/kg. A total of 27 elements were examined, the order of enrichment is Si > Fe > Al > Hg> K > Pb > Ti > Ca > Cd….All the elements were several times greater than the world's mean crustal abundance. The preponderance of these elements could be attributed to the contamination from artisanal mining of polymetallic mineral associations in Jibia, Dandire, Mallam Tanko Kafur, Dutsin-Ma and other areas within the State; as well as the anthropogenic factors like organic fertilizer application by farmers. It is recommended that the erosion of sand into the dam be checked through the planting of trees and other environmental conservation practices.
Phytochemical analysis and evaluation of antioxidant properties of extracts from leaves, stem-barks and roots of Pterocarpus Erinaceus
Authors: Mohammed Usman , Mohammed Abdulrashid , Mhya Daniel Hassan , Gabriel Simon Mafulul , Dahiru Daniel
Published: May 2024

Oxidative stress is found to be associated with the etiology of several human diseases. Free radicals are the causative agent of oxidative stress, and can be scavenged by either natural (plants) or synthetic antioxidants. Synthetic antioxidants have some side effects which push a lot of research focuses on natural antioxidants. Pterocarpus erinaceus is a medicinal plant employed as traditional remedy for the treatment of several diseases associated with oxidative stress. This basis, the present study aimed at screening phytochemical and evaluating antioxidant properties of extracts from leaves, stem-barks and roots of Pterocarpus erinaceus. Leaves, stem-barks and roots of Pterocarpus erinaceous after collection were air-dried and pulverized. Each was extracted with methanol and the methanolic extracts were used. Phytochemicals were screened, in vitro, and in vivo antioxidant studies conducted. Rats were grouped into; Group 1: Normal control (liquid paraffin, vehicle 1 ml.kg), Group 2: Negative control (received 1 ml/kg CCl4), Group 3: Positive control (received 1ml/kg CCl4 +1 ml/kg Silymarin), Group 4-6: Extract treated rats (received 1 ml/kg CCl4 + varied doses of Extracts at 100, 200, and 400mg/kg body weight of rats). The treatment was done daily via oral means for 14 days. The results of the study showed Pterocarpus erinaceus rich in different phytochemicals which possess free radicals scavenging properties. In vivo study revealed that Pterocarpus erinaceus could ameliorate CCl4 toxicity in a way that seem to be via elevation of endogenous antioxidant activities. In conclusion, the leaves of Pterocarpus Erinaceus possessed more of the components rich with antioxidant properties hence its recommendation for further study to identify molecules enshrined therein.
Intersection of domains: Designing a remote-controlled dish antenna
Authors: Oluwole Ayodele Sunday , Olaluyi Olawale , Johnson Adeogo
Published: May 2024

The advent of technology has instigated rapid advances in the field of communications, a prime example being the remote-controlled dish antenna, which embodies a parabolic design intended to intercept and concentrate electromagnetic waves onto a common focal point. The modification towards remote control mandates a core understanding of diverse technological realms as it involves an amalgamation of com-ponents and knowledge. This discourse probes into the nuanced design and implementation of a remote-controlled dish antenna, conceived around the core touchstones of a microcontroller and an array of complementary components. The research work signifies a compounding of several technological do-mains, including microcontroller programming, power electronics, wireless communication, and motor control, necessitating extensive proficiency in these areas and consequently, offering an invaluable foundation to the broader control system applications. The overarching aim of this research is to enable users to effectively control a dish antenna's positioning remotely, leveraging a Bluetooth HC-05 module for optimal convenience and accessibility. This revolutionary project relies on a PIC18F2550 microcon-troller, a high-performance RISC CPU with integrated EEPROM and SRAM, which allows for flexible data storage and retrieval. Considering its compatibility with a variety of peripherals, the PIC18F2550 emerges as a logical choice, significantly enhancing the system's performance efficacy.
The Biafra Story in Film: An Appraisal of Biyi Bandele’s Half of a Yellow Sun
Authors: Onwuliri Edmund Chukwuma
Published: May 2024

Diverse scholarly and artistic expressions in book form and documentary films have been employed to document the story of the  Nigerian Civil War by persons who were actively or peripherally involved in the events surrounding it. Attempts at telling the story have  been coloured by different factors like military, political, ethno religious and egocentric considerations. This study examined the war's  account through Biyi Bandele’s Half of a Yellow Sun, a filmic adaptation of Chimamanda Adichie’s novel with the same title. Using  qualitative content analysis method and grounded on the Trauma and Cinema Theory, the study examined the film’s representation of  historical facts and how such perspectives may have been received. The film's reception by the Nigerian cinema audience and  government through the cinema regulatory authority were examined. The study concluded that the suppression of critical historical facts  in the film through censorship represents the unwillingness of the government to allow for citizen conversation, which the film  could provoke and which may lead to proper closure and possibly lay to rest, the ghost of the fratricidal war that almost ripped the  country apart between July 1967 and January 1970.
An Assessment of Kwasi Wiredu’s Contributions to African Philosophy of Religion
Authors: Talabi Joseph Moyinoluwa , Okusanya Samuel Oludare
Published: May 2024

The African philosophy of religion has come of age. However, laying the groundwork and shaping its intellectual trajectories was the work  of eminent thinkers and philosophers who laboured in recent years. Kwasi Wiredu is one of the scholars who stood tall and strong  with the depth of his thoughts and perspectives seemingly traversing the scope of time and space. In light of the overarching objective of  this study “to decisively relaunch African philosophy of religion as a self-sustaining field of African philosophy,” it behoves that a  review of Wiredu’s contribution to the field is critically examined, considering the postmodern categories and contexts. Using an  analytical approach, this paper shows that Kwasi Wiredu’s contribution to the discourse on the substance and nature of Africa is highly  informative and enlightening, though it is open to dispute and reflections just like every other philosophical work. A brief review of the  catalogues of Wiredu’s scholarly works shows that the issues of conceptual decolonization, cultural reconstructionism and the nature of African philosophies underscore his work. The article argues that for contemporary philosophers, it behoves that Wiredu’s analytic  framework may be adopted. But, culturally-inclined and realistic approaches should be adopted in doing Africa philosophy. The  diversities of African cultures and traditions as well necessitate a pluralistic approach from various parts of Africa.
A Contrastive Analysis of Word Formation Processes in Interrogating Widespread Democratic Decay and Breakdown in some West African Countries
Authors: Odusote Abiodun
Published: May 2024

In contemporary times democracy is threatened across West African states like never before. Democracy is under increasing assault from  the elected leaders and their cronies. A noticeable, subtle, stifling strangulation of democratic structures and substance leads to the  erosion of democracy in more than a few West African countries and a total breakdown of democracy through coups in others.  Despite the attempts by the ECOWAS and AU to discourage democratic breakdown in Africa, military intervention continues to truncate  democracies in many African countries. This paper interrogated the root-causes of the prevalence of democratic breakdown in West  African countries and the factors sustaining military interventions in the region. Building upon earlier scholarly work on democratic  breakdown and deploying the doctrinal research methodology, the researcher analysed the resurgence of and effects of military  intervention and truncation of democratic practices in West Africa. The findings of this research showed that military intervention is edging West African countries to the precipice and there have been more than a few complete democratic breakdowns in West African  countries in recent times. In conclusion, the researcher offers suggestions on how democratic breakdown can be arrested in the West  African region and/or reduce its occurrence by advocacy, enthronement of good governance, citizenship participation, application of the  rule of law, and upholding of constitutional provisions.
Angular Distribution of Bremsstrahlung Spectral Temperature Measured in a Full Dimension of ECR Ion Source Using NaI(TI) Detector
Authors: Kumwenda Mwingereza J.
Published: May 2024

Measurement of angular distribution (AD) of the bremsstrahlung spectral temperature from a full dimension of the Electron Cyclotron Resonance Ion Source (ECRIS) along the beam axis is challenging. To overcome some challenges, this paper presents the AD of the bremsstrahlung spectral temperature measured in a full dimension of the ECRIS along the beam axis using data obtained from the Busan Center of Korea Basic Science Institute (KBSI). The bremsstrahlung spectral temperature from 28-GHz ECR Ion source at the KBSI was measured in six, three, and nine azimuthal angles at the injection, centre, and extraction sides of the ECRIS using three round type thallium-activated sodium iodide (NaI(TI)) scintillation detectors. Monte Carlo simulation based on the Geant4 software package was performed to take the geometrical acceptance and energy-dependent detection efficiency into account due to large non-uniformity in the material budget. True bremsstrahlung energy spectra from the 28-GHz ECR ion source were obtained using the inverse-matrix deconvolution method. The unfolding method was based on a full geometry of the Geant4 model of the ECRIS plasma. The results show that in all three measurement locations, the highest value of the spectral temperature was at an angle of 30∘ coincident with one of the maximum angles of the ECRIS plasma shape.
NGHIÊN CỨU CẢI TIẾN ĐỘ BÓNG BỀ MẶT CỦA THÉP SKD61 SỬ DỤNG CÁC THÔNG SỐ PHAY TỐI ƯU BẰNG PHƯƠNG PHÁP TAGUCHI
Authors: PHẠM HỮU LỘC  , NGUYỄN THI XUÂN CHINH
Published: May 2024

Độ bóng bề mặt của Thép SKD61 được cải tiến bằng phương pháp gia công phay CNC. Phương pháp Taguchi được đề xuất để điều tra các thông số phay tối ưu. Dựa vào kết quả thực nghiệm và giá trị tỉ số (S/N), giá trị tối ưu các thông số phay CNC được nhận dạng như sau: vận tốc cắt 63 (m/phút), bước tiến bàn máy 200 (mm/phút), chiều sâu cắt 0,25 (mm), dụng cụ cắt hợp kim cứng 4F. Độ bóng bề mặt mẫu thử thép SKD61 được cải thiện từ 6,23 µm đến 1,30µm tương ứng với 79,1 %.
ẢNH HƯỞNG SỰ HIỆN DIỆN CỦA LỚP CÁT MỎNG ĐẾN ỨNG XỬ LÚN CỐ KẾT CỦA LỚP ĐẤT YẾU
Authors: ĐỖ KIẾN TÀI  , ĐINH VĂN PHƯƠNG  , LÊ HOÀNG TUẤN  , VÕ HỮU VINH  , NGUYỄN TRẦN ANH TUẤN  , NGUYỄN BÁ PHÚ*
Published: May 2024

Lớp cát mỏng trong nền đất là lớp cát có chiều dày rất nhỏ hơn so với chiều dày của lớp đất yếu. Trong tự nhiên, lớp cát mỏng thường được hình thành trong quá trình trầm tích ven sông hoặc các vùng đất ven biển. Trong các dự án san lấp nền, lớp cát mỏng cũng được sử dụng xen kẽ các lớp đất đắp có hệ số thấm nhỏ nhằm tăng nhanh quá trình cố kết. Sự hiện diện của lớp các mỏng có ảnh hưởng rất lớn đến quá trình lún cố kết cũng như sự phát triển cường độ của đất yếu. Tuy nhiên, các nghiên cứu trước đây chưa nghiên cứu nhiều về ảnh hưởng các lớp cát mỏng đến ứng xử của nền như khả năng chịu tải và lún theo thời gian. Do đó, mục tiêu chính của nghiên cứu này là tiến hành một số thí nghiệm lún cố kết nhằm khảo sát ứng xử lún theo thời gian cho các trường hợp có và không có lớp cát mỏng. Kết quả nghiên cứu cho thấy rằng lớp cát mỏng có vai trò làm tăng đáng kể tốc độ cố kết và độ cứng của lớp đất yếu.
De novo transcriptome assembly and genome annotation of the fat-tailed dunnart (Sminthopsis crassicaudata)
Authors: Ibeh Neke , Feigin Charles Y. , Frankenberg Stephen R. , McCarthy Davis J. , Pask Andrew J. , Gallego Romero Irene
Published: May 2024

Marsupials exhibit distinctive modes of reproduction and early development that set them apart from their eutherian counterparts and render them invaluable for comparative studies. However, marsupial genomic resources still lag far behind those of eutherian mammals. We present a series of novel genomic resources for the fat-tailed dunnart (Sminthopsis crassicaudata), a mouse-like marsupial that, due to its ease of husbandry and ex-utero development, is emerging as a laboratory model. We constructed a highly representative multi-tissue de novo transcriptome assembly of dunnart RNA-seq reads spanning 12 tissues. The transcriptome includes 2,093,982 assembled transcripts and has a mammalian transcriptome BUSCO completeness score of 93.3%, the highest amongst currently published marsupial transcriptomes. This global transcriptome, along with ab initio predictions, supported annotation of the existing dunnart genome, revealing 21,622 protein-coding genes. Altogether, these resources will enable wider use of the dunnart as a model marsupial and deepen our understanding of mammalian genome evolution.
Produsul educațional - noile provocări ale evaluării rezultatelor elevilor la orele de informatică
Authors: IEŞEANU Dumitru
Published: May 2024

The new visions of developing the way of expressing the preparation of homework in classes through a sustainable and quality educational educational process according to the curriculum. This article shows the forms and methods of presenting themes through educational product. Expressing quantitative and qualitative measurable load that determines a current and sustainable educational product.
Evaluarea competenţei de comunicare la vârsta adolescenței
Authors: MÎSLIȚCHI Valentina
Published: May 2024

The article addresses the issue of assessing communication competence at the age of adolescence. In the paper, various definitions of the concept of communication competence are presented, the results of the study focused on the evaluation of the level of the communication competence possession of adolescents are described.
Evaluarea competenței matematice a copiilor de vârstă preșcolară
Authors: PAVLENCO Mihaela
Published: May 2024

The evaluation represents the complex didactic act, integrated in the educational process in the kindergarten, which follows to measure the level of development of the preschooler's skills, including the mathematical ones, at a given moment, with the aim of perfecting the didactic act and obtaining higher performances among preschoolers. In this sense, the evaluation ensures the verification of the effectiveness of the strategies planned by the educator and follows self-regulation and streamlining the instructive educational process.
Modalități de evaluare a comprehensiunii textului literar în clasele primare
Authors: SANDU Parascovia
Published: May 2024

Comprehension represents the ability to penetrate, to understand something, contributing to the awareness of the content, to the awareness of the literary-artistic message launched by the author, to the cultivation of aesthetic taste, critical spirit and value judgment. It is carried out by evaluating the presentation of knowledge, the evaluation of the description, the evaluation of the oral explanation, the presentation based on a plan - all falling within the context of the formative evaluation and stimulating the students' interest and motivation towards knowledge, aiming at the relationship between the reader and the literary work.
Specificul strategiilor de educație interculturală în clasele primare
Authors: SECRIERU Angela
Published: May 2024

În articol este abordat specificul strategiilor utilizate la diverse discipline școlare. Sunt enumerate, analizate strategii de aplicare a educației interculturale.
Relația evaluare – curriculum
Authors: STRATAN Victoria
Published: May 2024

The relationship between assessment and curriculum is complex, which implies approaching the teaching-learning-assessment process in an integrated way. Any change produced at the level of one of these activities influences the methods of carrying out the others, generating a chain reaction, which requires permanent returns and revisions. The article deals with the evaluation-curriculum relationship and outlines the system of principles of evaluation activity in a curricular context. Some findings are presented with reference to the evaluation-curriculum relationship from the perspective of the two actors of the educational binomial, teacher and student.
Modalități de implementare a elementelor de limbaj plastic în cadrul activităților artistico-plastice la preșcolari
Authors: VINNICENCO Elena , FONARI Marina
Published: May 2024

Art is a form of knowledge through artistic images and contributes to widening the horizon of knowledge, to the most complete and comprehensive perception of reality. Among the languages of art, the plastic language is the closest to preschoolers, because it has the mission of balancing and harmonizing the child's relationships with nature, with the surrounding beauty. The artistic-plastic activities are extremely flexible and varied, with a great weight in educating preschoolers' creativity.
Aspecte ale evaluării rezultatelor școlare în cadrul învățării online
Authors: CARA Angela
Published: May 2024

The article highlights the main aspects in the field of student assessment in the context of remote learning. In this regard, the article describes examples of assessment methods and tools that can be used in remote learning.
Analisis Cerpen "Senyum Karyamin" Karya Ahmad Tohari dengan Pendekatan Ekspresif
Authors: Nur Rochmansyah Bagaskara
Published: May 2024

Cerita pendek (cerpen) adalah cerita kisahan pendek yang kurang dari 10.000 kata, memberikan kesan tunggal yang dominan, dan memusatkan diri pada satu tokoh dalam satu situasi. Penelitian ini bertujuan untuk mendeskripsikan ekspresi pengarang yang terdapat dalam cerpen yang berjudul ”Senyum Karyamin”. Cerpen ini adalah salah satu cerpen dari ketiga belas cerpen dari kumpulan cerpen yang berjudul “Senyum Karyamin” karya Ahmad Tohari. Model pendekatan yang dipilih adalah pendekatan ekspresif menurut Abrams. Teknik pengumpulan data penelitian ini menggunakan teknik pembacaan pertama, yaitu heuristik. Teknik heuristik digunakan untuk membaca cerpen dan mengumpulkan penggalan-penggalan dengan tanpa melibatkan konteks. Untuk menganalisis data, pada penelitian ini menggunakan teknik pembacaan kedua, yaitu hermeneutik. Teknik pembacaan ini digunakan untuk memahami ekspresi pengarang yang disampaikan dengan didasarkan pada kaidah dan kode sastra, sosial, dan budaya. Hasil penelitian ini menunjukkan bahwa ekspresi pengarang berupa senang, sabar, khawatir, peduli, bimbang, dan marah. Hal tersebut digambarkan melalui tokoh, kejadian, dialog, dan perilaku tokoh di dalam cerpen “Senyum Karyamin”. Selain itu, beberapa ekspresi yang disampaikan pun memiliki kaitan dengan yang dialami, dirasakan, atau yang dipikirkan oleh pengarang seperti dengan latar pendidikannya, keluarganya, dan persepsinya.
DOĞU ASYA KRİZLERİ VE LATİN AMERİKA KRİZLERİNE NEDEN OLAN ORTAK DİNAMİKLER
Authors: Demircioğlu Semra , Atabay Kuşçu Rana
Published: May 2024

1990’lı yıllar dünya ekonomisi açsından çok ilginç bir dönemdir. Bu yılların başında çok yüksek büyüme oranlarına sahne olan dünya ekonomisi, 1990’lı yılların sonunda Doğu Asya ve Latin Amerika gibi iki büyük krize tanıklık etmiştir. Küresel olarak faizlerin düşük olması nedeniyle gelişmiş ülkeler, yeni sanayileşme aşamasında olan bölgelere yatırım yapmaya başlamıştır. Henüz kırılgan bir yapıya sahip olan bu ülkelere gelen hızlı sermaye akımlarının hızla geri çıkması kaçınılmaz krizlerle sonuçlanmıştır. Bu bölgelerde ortaya çıkan krizler literatürde ayrı ayrı çeşitli teorik bakış açılarıyla değerlendirilmiştir. Bu çalışmada iki farklı kıtada farklı zamanlarda meydana gelen bu krizlerin oluşmasına neden olan dinamikler incelenerek, ortak yönleri ortaya konulmaya çalışılmıştır.
Antecedents of Individual Readiness for Change with the moderating effect of Behavioral Resistance to Change in the Software houses of Islamabad Pakistan
Authors: Khalid Aisha , Saleem Muhammad Abid , Hassan Madiha
Published: May 2024

This study seeks to contribute to the existing body of knowledge on individual readiness for change, a topic that has garnered considerable attention from both academia and the broader public over the past few decades. This is because more and more individuals want to feel that their work has value, and because positive organizational change and positive psychology research are both expanding fields. In order for employees to actively adapt themselves in response to the fast-changing environment and produce more meaningful work, this study aims to understand the sources of meaningful work. The target audience consists of software engineers (programmers and developers) employed by Pakistan's Evacuee Trust in its software companies. There is little data on this industry and this level of employees, making it an appealing study target.
Effect of Smuggling on Economic Status of Households of District Loralai: An Analysis
Authors: Khan Naseer , Waleed Muhammad
Published: May 2024

This study analyzes the effect of smuggling on the economic status of households in District Loralai. The data of 400 households were collected by using a simple random sampling technique from the Loralai district. The ordinary least square method was applied to estimate the results. Both rural and urban households were sampled. The economic status of the households was measured with household monthly income, household monthly expenditures, and household value of physical assets. The core independent variable used in the study was the participation of respondents in smuggling and price differences. Results show that smuggling boosts the economic status of households but harms the country's economic growth.
Analisis Kualitas Pelayanan Petugas Customer Service PT. Angkasa Pura I dalam melayani Penumpang di Bandar Udara International Yogyakarta
Authors: Pamungkas Tegar Purbo , Widagdo Djoko
Published: May 2024

Dalam pelayanan jasa transportasi udara memerlukan petugas Customer Service yang berhadapan langsung dengan penumpang perihal apapun yang ditanyakan oleh penumpang. Namun terdapat beberapa petugas yang masih pasif terhadap penumpang dan beberapa informasi yang terkadang tidak diketahui petugas Customer Service. Penelitian ini bertujuan untuk mengetahui Kualitas Pelayanan Petugas Customer Service PT. Angkasa Pura I Dalam Melayani Penumpang di Bandar Udara International Yogyakarta. Adapun pada penelitian ini peneliti menggunakan pendekatan kualitatif dengan metode Triangulasi (Observasi, Wawancara, Dokumentasi) dan data tambahan berupa Kuesioner menggunakan 5 Dimensi Kualitas Pelayanan (Tangibles, Reliability, Responsivess, dan Assurances), serta data penilaian survei langsung dari PT. Angkasa Pura I dalam kepuasan penumpang di bandar udara International Yogyakarta. Teknik Analisis data pada penelitian menggunakan Reduksi Data, Triangulasi, Metode Service Quality (Kuesioner), dan Kesimpulan. Hasil yang diperoleh menunjukkan bahwa petugas Customer Service memiliki kualitas pelayanan yang cukup baik dalam melayani penumpang di Bandar Udara International Yogyakarta, dan mampu berinteraksi serta berkoordinasi dengan petugas lain perihal informasi yang terbaru. Namun, dari hasil Kuesioner menunjukkan terdapat satu dari lima dimensi yang dirasa kurang memuaskan yaitu Empati dari Petugas yang terkadang tidak menghampiri atau aktif dalam menangani penumpang.
Saberes ancestrales - ecosofía: re-ligajes decoloniales planetario
Authors: Rodriguez Milagros Elena
Published: May 2024

Se cumple con el objetivo analizar los saberes ancestrales – ecosofía como re-ligajes decoloniales planetarios que coadyuvan a la concepción compleja del ser humano. Desde el transparadigma complejo y el transmétodo la hermenéutica comprensiva ecosófica y diatópica en los momentos: analítico, empírico y propositivo. En el momento propositivo, la ecosofía en los saberes ancestrales como una sabiduría con alta espiritualidad de la tierra misma que se manifiesta al ser humano cuando sabe escucharla con amor, más allá de una simple ecología, que ha caducada en la conquista - masacre de la naturaleza. Urge superar una cierta actitud ecológica, en la que la ética del género humano se haga habitual para profundizar mucho más en la investigación de un nuevo equilibrio entre materia y espíritu. Pensando en los saberes ancestrales-ecosofía que somos naturaleza nos erige en nuestra afectividad cognitivo-afectivo-espiritual a la sensibilidad por nuestras limitaciones de crear la naturaleza.
LA SOBERANÍA ALIMENTARIA EN EL PROGRAMA DEL BUEN VIVIR. FACTORES PARA SU DESARROLLO.
Authors: Villalva Heredia Carlos Ivan , Díaz Llorca Carlos B.
Published: May 2024

Este artículo presenta el análisis que conlleva el problema de la alimentación en el mundo, que se constituye en el verdadero inconveniente de las relaciones sociales de producción capitalista. A partir de la globalización y articulando una serie de derechos, garantías sociales, económicas y ambientales se da paso a la consolidación del buen vivir como régimen de desarrollo ligado a la soberanía alimentaria. Sin embargo, es necesario comprender los espacios del buen vivir en situaciones en que la divergencia de criterios y la realidad socioeconómica limitan su aplicabilidad por la injerencia de grupos que buscan la hegemonía neoliberal
PROPUESTA DE SISTEMA DE GESTIÓN DE LA INNOVACIÓN, DESDE LA CULTURA ORGANIZACIONAL, EN UNA EMPRESA AZUCARERA DEL GUAYAS
Authors: Peralta Rodríguez María del Carmen , Sánchez Mazzini Carlos , Alabart Pino Yesmin
Published: May 2024

El trabajo de investigación que se expone en el presente artículo aborda el tema de la Gestión de la innovación en una empresa del sector azucarero del Ecuador. Para la realización del mismo los autores analizan y muestran definiciones y modelos para llevar a cabo tal gestión y aplican la metodología propuesta por la Consultora IDOM, la cual consta de tres fases, la fase uno es el diagnostico de la situación actual, en donde a raiz de la aplicación de una encuesta a los trabajadores y directivos y entrevistas a personas de vasta experiencia en el sector se determina que a pesar de la preocupación de la empresa por la innovación, no ha logrado estructurar un sistema integral con un proyecto estratégico, donde se definam la estructura organizativa, las lineas prioritarias, el presupuesto para la innovación y otros elementos que haría viable el desarrollo de esta práctica de manera sostenida.
En el trabajo se propone el diseño sistema para la Gestión de la innovación a partir de las particularidades de la empresa objeto de estudio y el sistema documental para la implantación del mismo
La internacionalización de marcas guayaquileñas de la industria de conservas de pescado en la CAN
Authors: Jara Alba Carol , Briones Vargas Andrés
Published: May 2024

Esta investigación presenta información sobre cómo las empresas guayaquileñas, especializadas en el procesamiento, empaquetado y comercialización de conservas de pescado, lograron internacionalizar sus marcas en los países miembros de la Comunidad Andina (CAN). Se hace preciso conocer: ¿Cuáles han sido los elementos propiciadores en la internacionalización de sus marcas? y si ¿Existe alguna relación entre los procesos aplicados y la internacionalización?
En este artículo se reconocen y cuantifican los procesos aplicados en la introducción de sus productos con y sin marca en la CAN, las formas de acceso, manejo de la marca, influencias para internacionalizar, estrategias de promoción y publicidad empleada, así como los factores internos y externos que motivaron la exportación.