bluuebunny/crossref_metadata_2025 huggingface dataset:
TCTO Analisis Percepatan Waktu Pelaksanaan Proyek Kontruksi Dengan Jam Kerja Lembur Menggunakan Metode Time Cost Trade Off (TCTO) Proyek Hotel Shafira Surabaya
Authors: Susanto Irvan Dwi
Published: November 2023

Ada banyak cara  yang mungkin bisa untuk menangani terlambatnya pada durasi proyek menggunakan cara menambah pada pekerja proyek, menambah waktu lembur pekerjaan, menambah shift kerja, ataupun menggunakan alat kerja bantu agar lebih efisien. Hal yang bisa menangani untuk permasalahan terlambatnya proyek tersebut ialah durasi dalam menangani proyek dan biaya-biaya pekerja pada proyek dan pekerjaan lainnya punya hubungan yang erat pada pelaksanaan kerja. Pelaksanaan proyek Hotel Shafira Surabaya dengan biaya kontrak sebesar Rp 75.565.747.573 ini perlu di lakukan percepatan untuk waktu akan sangat perlu dilakukan, mungkin mendapatkan keterlambatan saat pengerjaan pada lapangan. Dalam penelitian ini menggunakan metode yang digunakan alternasi waktu dengan biaya (time cost trade off). Metode tersebut dengan tujuan mempercepat durasi pekerjaan di proyek dan mengkaji pengaruh durasi dipersingkat dengan penambahan alokasi biaya. Dari hasil penelitian, dapat di ketahui telah direncanakan dengan  waktu durasi optimal 448 hari atau 61 minggu di bandingkan waktu normal berdurasi 455 hari atau 63 minggu menggunakan metode jam lembur selama maksimal 3 jam/hari, proyek tersebut dapat menghemat waktu sebanyak 7 hari. untuk efisiensi biaya proyek dengan biaya kompresi sebanyak Rp 9.047.960.280.
Small Dual-Band 3D Beamforming MIMO Antenna
Authors: Zandamela Abel , Marchetti Nicola , Narbudowicz Adam
Published: November 2023

This work proposes a small dual-band (2.4 GHz and 4.89 GHz bands) 3D beamforming Multiple-Input Multiple-Output (MIMO) antenna for emerging size-constrained Internet of Things (IoT) applications. The performance is realized via digital beamforming in a structure sized only 51.5 mm in diameter (smaller than half wavelength at 2.4 GHz). At the 2.4 GHz band, the antenna realizes an isolation > 30 dB, and the Envelope Correlation Coefficient (ECC) is < 0.0003), with a bi-directional beamforming capability in the azimuth plane and unidirectional beamforming across the elevation plane. At the 4.89 GHz band, the isolation is > 19 dB, and the ECC< 0.0047, while unidirectional beamforming is achieved in both the azimuth and elevation planes. 
Probabilistic Net Load Forecasting Framework for Application in Distributed Integrated Renewable Energy Systems
Authors: Telle Jan-Simon , Schönfeldt Patrik , Upadhaya Ajay , Steens Thomas , Hanke Benedikt , Maydell Karsten von
Published: November 2023

This study endeavors to establish an simple, robust, and transparent forecasting framework that is easily deployable, computationally efficient, and adaptable across the various sectors constituting distributed integrated energy systems.

Accordingly, a probabilistic day-ahead forecasting framework and its application are presented.

A personalized standard load profile (PSLP) is then applied to electricity and heat demand, as well as PV generation. Furthermore, it is extended to incorporate a quantile personalized standard load profile employing quantile regression.

Using a PCHIP interpolation, the empirical cumulative distribution function is approximated from the non-parametric approach and the probability density function derived.

Furthermore, it is shown how discrete convolution can be used to determine the joint probability density function of the distributed net load.

A case study was conducted at a commercial logistics facility that utilized a decentralized energy system to showcase the forecasting framework and its application for optimization in the presence of uncertainty. This involved using the net load and its probability density functions for uncertainty-based optimization.
Passive Intermodulation in Metal-to-Metal Contacts Caused by Tunneling Current
Authors: Dayan Amir , Huang Yi , Gustafsson Mattias , Olsson Torbjörn , Schuchinsky Alexander G.
Published: November 2023

Passive intermodulation (PIM) by metal contacts limits the bandwidth and capacity of radio links used in mobile and satellite communications. In this work, we investigate the effect of nonlinearities of metal-to-metal contacts and their effects on PIM generation. An analytical expression is obtained for the tunneling current density which has an error of ~1.6% in the case of a very thin insulator and low voltages in MIM (Metal-InsulatorMetal) junctions. The presented analytical model of the contact surfaces with the fractal geometry is applied to simulate PIM products of third-order (PIM3) and fifth-order (PIM5) versus the contact resistance and applied pressure. The simulation results are validated experimentally by an open-ended rectangular coaxial structure with a slotted enclosure. The measurement results demonstrate that the presented model predicts the PIM with a mean error of about 4.8 dB when the contact pressure varies from 0.5 MPa to 1.7 MPa.

 
Dual-polarization Mode Microwave Channelizer with a Kerr Soliton Crystal Microcomb
Authors: Moss David
Published: November 2023

We report a dual-polarization radio frequency (RF) channelizer based on microcombs. With the tailored mismatch between the FSRs of the active and passive MRRs, wideband RF spectra can be channelized into multiple segments featuring digital-compatible bandwidths via the Vernier effect. Due to the use of dual-polarization states, the number of channelized spectral segments, and thus the RF instantaneous bandwidth (with a certain spectral resolution), can be doubled. In our experiments, we used 20 microcomb lines with ~ 49 GHz FSR to achieve 20 channels for each polarization, with high RF spectra slicing resolutions at 144 MHz (TE) and 163 MHz (TM), respectively; achieving an instantaneous RF operation bandwidth of 3.1 GHz (TE) and 2.2 GHz (TM). Our approach paves the path towards monolithically integrated photonic RF receivers (the key components—active and passive MRRs are all fabricated on the same platform) with reduced complexity, size, and unprecedented performance, which is important for wide RF applications with digital-compatible signal detection.
On the Performance Assessment Techniques of Orthomode Transducers
Authors: Mahfouz Abdullah
Published: November 2023

To assess the performance of orthomode transducers (OMTs), the back-to-back (BTB) configuration is analyzed in simple fundamentals for accurate results and clear physical insight. The axial rotation of an OMT in the BTB measurement setup is investigated, and clear facts are highlighted. Furthermore, terminating OMT’s Common Port with a short circuit load is proposed as a low-cost and accurate evaluation technique based on detailed analysis. The presented techniques have the advantage of using only power measurements without anechoic chambers. A full-wave simulation of a published OMT operating at V-band (55 - 65) GHz is used to validate these analyses.
'Get Hired' -- Unlock your Ideal Job
Authors: Gill Dakshu , Sharma Lovish , Kachhawa Yogesh , Gupta Bhavey , Vasudeva Akshay , Bala Neetu
Published: November 2023

Creating a LinkedIn clone is a complex and multifaceted project that
involves the development of a professional networking platform inspired
by the original LinkedIn. This endeavor necessitates a comprehensive
understanding of user needs, technical proficiency, legal compliance,
and innovative thinking. The primary objective of such a project is to
offer a digital space for professionals to connect, share experiences,
and build a robust network to further their careers. Key elements of
developing a LinkedIn clone include defining the project’s scope,
conducting market research, identifying the target audience, and
establishing a unique value proposition. The planning phase involves
creating a detailed project plan, allocating resources, setting budgets,
defining timelines, and conducting legal and compliance reviews to
ensure adherence to data protection and intellectual property laws. The
design phase focuses on creating an intuitive and engaging user
interface, with wireframes and prototypes that guide the user
experience. Development encompasses front-end and back-end activities,
including user registration, profile creation, news feeds, messaging,
connections, and other core features. Robust search functionality and
privacy controls are vital components. Testing is critical to ensuring
the platform’s reliability, with rigorous assessments of functionality,
security, performance, and usability. The deployment phase involves
setting up hosting environments, configuring databases, and launching
the platform. User onboarding strategies are developed to guide users
through registration, profile setup, and networking activities.
Marketing and promotion efforts include devising strategies to attract
and retain users through various channels, such as content marketing,
social media marketing, email campaigns, and public relations. User
feedback and iteration enable continuous improvement, as data analysis
guides updates and enhancements.
Subjective Technologies An Exoskeleton for the Mind
Authors: Tomas Borda Pablo
Published: November 2023

Embark on a transformative journey into the realm of Subjective Technologies ( Zero-Input technology)  ! Join our research initiative to explore groundbreaking concepts in user-centric technology, transhumanism, and the fusion of human and machine intelligence. Dive into the future of computational affinity, cognitive amplification, and Subjective Thermo-Currency that renders the concept of money and currencies conceptually obsolete. Contribute to shaping a new era of human-computer interaction that maximizes efficiency, freedom, and potential. 
Molecular-genetic portrait of virulence of Stenotrophomonas maltophilia
Authors: Mikhailovich Vladimir M. , Geydarov Rustam N. , Bocharova Julia A. , Chebotar Igor V.
Published: November 2023

Introduction. Stenotrophomonas maltophilia is an opportunistic pathogen that is intrinsically resistant to a wide range of antibiotics. The bacterium is associated with a number of serious diseases and makes a significant contribution to the pathogenesis of polymicrobial infections. S. maltophilia has a wide range of virulence factors, information about which is currently presented in the form of scattered and unconsolidated data.
Purposes and objectives: critically analyze and summarize current data regarding the molecular-genetic aspects of S. maltophilia virulence for better understanding of the pathogenesis of infections associated with this pathogen.
Materials and methods. An analysis of information from 80 modern literary sources devoted to the study of the virulent properties of S. maltophilia at the molecular-genetic level has been carried out. The analysis focuses on the mechanisms of production of virulence factors and their genetic determinants.
Results.The molecular mechanisms of virulence that determine the infectious process caused by S. maltophilia have been analyzed and summarized, including the adhesive function of the surface structures of the bacterial cell (lipopolysaccharides, pili/fimbriae, flagella), the production of extracellular enzymes, the ability to form biofilms on abiotic surfaces and on the tissues of the macroorganism, the functioning of efflux pumps, secretion of small molecules into the external environment by the intercellular information exchange system Quorum Sensing, as well as the influence of iron metabolism on the virulence properties of S. maltophilia.
Conclusion. The adaptation mechanisms that allow S. maltophilia to adapt to new habitat niches and survive in the human body and unfavorable environmental conditions have been poorly studied. An analytical review summarizing current information on the molecular-genetic aspects of S. maltophilia virulence will be of interest to clinicians and researchers studying the fundamental mechanisms of virulence.
Comparative evaluation of disinfectant efficacy against biofilm-residing microorganisms
Authors: Fedorova Lyudmila S. , Ilyakova Anastasia V.
Published: November 2023

Introduction. Bacteria in biofilms (BFs) have increased resistance to antibacterial agents, including disinfectants; however, the efficacy level varies depending on the chosen treatment. Therefore, evaluation of efficacy of main disinfectants against BF-residing microorganisms is of scientific and practical interest.
The purpose of the study was to explore the effect of disinfectants from various chemical groups on gram-positive and gram-negative bacteria residing in BFs.
Materials and methods. The effect of the following disinfectants has been evaluated: alkyldimethylbenzylammonium chloride (ADBAC), tertiary amine (TA), polyhexamethylene guanidine chloride (PHMG), hydrogen peroxide (HP), chloramine (CA), dichloroisocyanuric acid sodium salt (Na DCC), sodium hypochlorite (HC), ethyl alcohol (EA), glutaraldehyde (GA)) against Pseudomonas aeruginosa ATCC 15442 and Staphylococcus aureus ATCC 6538-P BFs. BFs were grown in 96-well plates at 37ºC for 24 hours and then exposed to biocide solutions. The efficacy of disinfectants was evaluated by the number of remaining viable cells and BF relative density.
Results. The analyzed bacterial strains formed moderate BFs; the average number of viable cells in BFs was 6.51 ± 0.19 lg. The viable bacterial cell counts in BFs reduced by more than 4 lg when exposed to HP solutions at a concentration of 6%, Na DCC solution — 0.1% (by active chlorine), HC — 1% (by active chlorine), CA – 1% (by product), PHMG — 0.05%, TA — 1.0 %. The BF density decreased by more than 70%. ADBAC solutions at concentrations of 0.1–1.0%, TA — 0.05%, HP — 3%, Na DCC solution — 0.05% (by active chlorine) caused a 2-lg reduction in viable cell counts in BFs. The efficacy of chlorine-active compounds and HP increased when 0.5% sulfonol was added. GA (0.25–1.00%) and EA (40–70%) solutions were ineffective against BF microorganisms.
Conclusion. A promising potential in combating microbial biofilms is demonstrated by disinfectants from the group of oxidizing agents (chlorine-active and oxygen-containing), TA and PHMG; using ADBAC as an individual compound is ineffective; aldehydes and alcohols are unable to destroy BFs and eliminate microorganisms in them.
Characteristics of antibiotic resistance of non-typhoidal Salmonella circulating in the Russian Federation in the period from 2019 to 2022
Authors: Pavlova Anastasia S. , Kuleshov Konstantin V. , Krutova Natalia E. , Guseva Anna N. , Podkolzin Alexandr T.
Published: November 2023

Introduction. Non-typhoidal Salmonella make a significant contribution to the incidence of enteric infections and are characterized by an increasing proportion of strains resistant to antimicrobial agents (AMA), including the first choice antibiotics (cephalosporins III and fluoroquinolones).
The purpose of the study is to assess the phenotypic resistance of Salmonella to various classes of AMAs and determine the relationship between the phenotypic resistance, serotype, source of isolation and nature of incidence.
Materials and methods. We studied 752 representative strains of Salmonella of 2494 strains isolated from various sources (clinical samples, food products, environment) received from 59 regions of Russia in the period from 2019 to 2022. The phenotypic resistance to 22 antibiotics of 11 CLSI classes of AMAs was assessed by broth microdilution method (minimum inhibitory concentration). The diversity of resistance profiles of Salmonella serotypes was compared using the Shannon index.
Results. The dominant position in terms of isolation frequency is occupied by the serotypes Salmonella Enteritidis, S. Infantis, S. Muenchen, S. Typhimurium, S. Bovismorbificans, which accounted for 64.4% of the studied strains. 543 (72.2%) strains showed resistance to at least one of the tested antibiotics; 193 (25.7%) strains were characterized by multidrug resistance phenotype (MDR). Resistance to AMA classes was characterized by the following distribution: quinolones (61.3%), tetracyclines (28.1%), penicillins (19.1%), β-lactam combination agents (18.6%), folate pathway antagonists (16, 5%), phenicols (10.1%), aminoglycosides (5.6%), cephems (4.7%), monobactams (4.4%), lipopeptides (3.9%). No penem-resistant strains have been identified. The features of Salmonella resistance by AMA classes are shown to depend on the sources of isolation, the Salmonella serotype and the nature of the incidence (outbreak and sporadic).
Conclusions. Monitoring of phenotypic antibiotic resistance is an important tool for epidemiological surveillance in order to prevent the spread of bacterial resistance to AMAs.
Response of hydroponic baby lettuce to UV-B radiation exposure during the growing period
Authors: Silveira Gomez Ana Cecilia , Rivera Marchant Luis , Escalona Contreras Victor Hugo
Published: November 2023

Lettuce (Lactuca sativa L.) has a nutritional contribution comparable to other vegetables. It is produced in soil and hydroponics systems, outdoors or indoors, and in some cases, with the management of radiation. UV-B radiation exposure can influence the functional quality of vegetables and is becoming more frequent. Cultivars Kristine RZ and Versaï RZ were exposed to four radiation doses: UV-B0 (0 μW·cm-2), UV-B16 (16 μW·cm-2), UV -B33 (33 μW·cm-2) and UV-B58 (58 μW·cm-2), during 30 min for 10 days. Lettuce leaves were harvested twice. The leaf area of 'Versaï RZ' was not affected by radiation in the first harvest, while the high doses (33 and 58 µW·cm-2) reduced the leaf area of 'Kristine RZ' between 15-30 %, respectively. The radiation did not significantly impact the percentage of dry matter and the color parameters. However, functional compounds were affected. In general, the cv. Kristine RZ responded positively to the dose of 16 µW·cm-2 while 'Versaï RZ' to 58 µW·cm-2. An increase in the content of functional compounds was also observed in 'Versaï RZ' in the second harvest, and a reduction in the levels measured in 'Kristine RZ' indicated a different adaptation to UV-B radiation that must be studied individually.
Growth and yield performance of carrot (Daucus carota L.) as influenced by plant population density under irrigation condition
Authors: Muhie Seid Hussen , Yimer Hussen Seid
Published: November 2023

Poor agronomic practices, such as inadequate plant density, can result in suboptimal carrot (Daucus carota L.) yield and quality in some regions. In 2020, a field experiment was conducted under irrigation conditions in Gerado, South Wollo administrative zone, Ethiopia, using the Nantes variety as a test crop, to investigate the impact of inter-row and intra-row spacing on carrot yield. The treatments involved three inter-row (row) spacing levels (10, 15, and 20 cm) and three intra-row (plant) spacing levels (5, 10, and 15 cm) in a randomized complete block design with three replications. Row and plant spacing significantly affected (P<0.05) total yield, plant height, leaf fresh weight, root length, root diameter, and root fresh weight. The highest marketable yield (490.4 q ha-1) was achieved with a plant density of 20 x 5 cm. In contrast, the highest unmarketable yield (36.3 q ha-1) was obtained with a spacing of 20 x 15 cm. Hence, a plant density of 20 x 5 cm is recommended for optimal marketable carrot yield in the study region and similar agroecologies, although further research across multiple locations and seasons is necessary to validate the results.
New mutations of flower shape in Nigella damascena L., its pleiotropic effects and patterns of inheritance
Authors: Lyakh Viktor , Soroka Anatoly
Published: November 2023

Two mutants with short sepals were identified after ethyl methanesulfonate treatment of Nigella damascena seeds. In one of them (“shs1” gene = short sepal 1), isolated from the line with double flowers, the sepals, in addition to reduced size, were divided into several rounded lobes, which granted the flower an original rose-like appearance of ornamental value. Another mutant with reduced sepals (“shs2” gene = short sepal 2) was isolated from the line with simple flowers. The allelism test showed that these two genes were non-allelic. Both mutants as pollen parents were crossed with the same line with single flowers. In a dihybrid cross, simple flower, non-reduced sepals (wild type) × double flower, reduced sepals (“shs1” gene) F1 hybrids demonstrated a wild phenotype. F2 progeny, in addition to two parental classes, showed two recombinant classes in a 9:3:3:1 ratio, indicating that flower shape and sepal size were inherited monogenously and independently, and the plant with rose-like flowers was a double recessive homozygote. Reduced sepals (“shs2” gene) in crosses with the single flower line of wild type were inherited as a monogenic recessive trait, showing a 3:1 segregation ratio in F2. Both mutant genes had a number of similar pleiotropic effects, which, however, were different in strength. Thus, both mutant genes shortened leaf segments, divided the cotyledon leaves into several lobes, and caused disturbances in the female generative sphere, leading to a lack of seed setting. At the same time, the identification of mutants as early as at the cotyledon stage, due to the pleiotropic effect, makes it possible to select and maintain them, especially with regard to the mutant with rose-like flowers, which is highly decorative.
Knowledge and Attitudes of Anesthesia Staff on Pain in the Hospitals of Niamey
Authors: M Nanzir Sanoussi , M Gagara , C Nzouamin , H Daddy , S Chaibou M.
Published: November 2023

Aim of the study: To assess the knowledge and attitudes of anesthesia staff on the management of pain in the hospitals of Niamey. Patients an method: This was a multicenter descriptive cross-sectional study carried out in five hospitals in Niamey (Republic of Niger) from July 3rd to December 3rd, 2021. Were been included in the study, all the anesthesia staff who agreed to answer the questionnaire. The variables studied were: age, gender, seniority, sector of activity and qualification, definition of pain, different types of pain, the impact of pain on the body, tools used for assessment of pain, difference between acute and chronic pain, knowledge about analgesics, the practical attitudes of pain management. The data were intered and processed with Epi info 7.2 software and the Microsoft Office 2019 pack. Results: Our study concerned 106 agents from the anesthesia and resuscitation department of the hospitals that served as our study framework. There is a female predominance of 55.42% with a sex ratio of 0.80. The 45-54 age group was the most represented with 40.07% of cases. The average age of respondents was 44.95 ± 8.9 years. Anesthesia nurses were the most represented with 90.36%. The operating theatre unit was the most represented sector of activity with 85.54%. All the respondents knew the definition of pain. The different types of pains were known by 45.78% of respondents. The most used pain scales were visual analog scale (VAS) and verbal descriptor scale (VDS) respectively in 53.01 % and 12.05 % of cases. Tramadol and paracetamol were the mostly used analgesics respectively in 98.80 % and 97.59%. Intravenous morphine titration was known to 67.47% of the respondents. Only 18.07% of the respondents benefited from a training on the management of pain. Conclusion: The knowledge and attitudes of anesthetists on pain deserve to be updated through theorical and practical training to improve the management of pain in our hospitals.
Perioperative Hypothermia in Pediatric Surgery
Authors: M Nanzir Sanoussi , M Gagara, , H Daddy, , S Chaibou, M.
Published: November 2023

Aim of the study: To study the risk factors and the clinical consequences of perioperative hypothermia in pediatric surgery. Patients and Method: It was an observational and descriptive prospective study conducted over a period of two (2) months from December 10th, 2021 to February 10th, 2022. Were inclueded in the study children from 0 to 15 years old who were done general anesthesia with tracheal intubation in a elective surgery that lasted 30mn at least. The variables studied were: age, gender, American Society of Anesthesiologists (ASA) status, type of surgery, the means used for prevention, perioperative incidents, intraoperative transfusion, patient’s temperature before induction and during surgery until extubation, duration of the surgery, duration of anesthesia. Results: During the period of our study, 89 patients were collected. The average age was 4,79 ± 3,53 years with extremes of 14 days and 15 years. The most represented age group was that of 1 month to 5 years with 61% of cases. Male gender represented 66.29% of cases, a sex ratio of 1.96. Perioperative hypothermia was noted in 64.04% of the patients, it was moderate in 95% of cases and severe in 3% of cases; all the age groups were concerned but newborns were the most susceptible. The room temperature fluctuated around an average of 27 ± 2,7°C with extremes of 24.6°C and 30°C. Digestive surgery predominated with a frequency of 57.30%. ASA I was the most represented class in 65% of cases. Risk factors were age, the type of surgery, a high ASA level, duration of the surgery and blood transfusion. All the patients who received transfusion presented hypothermia. The most common consequences of perioperative hypothermia were wake-up delay in 35% and bradycardia. Conclusion: Perioperative hypothermia is very common in pediatric surgery. Then, it should be prevented effectively to avoid its complications.
The Bilateral Tap-Block Ultrasound-Guided in Laparoscopic Abdominal Surgery: Evaluation of a Curare-Free Anaesthetic Protocol
Authors: Diedhiou M. , Sarr N. , Ndong A. , Niang F. G. , Ba E. B. , Barboza D. , Tendeng J. N. , Diao M. L. , Konaté I. , Traoré M. M. , Fall M. L.
Published: November 2023

Introduction: The transverse abdominal plane block or TAP block consists of injecting a local anaesthetic between the internal oblique and transverse muscles. Its contribution to muscle relaxation during laparoscopic surgery has been little studied. Material and Method: We carried out a 2-years prospective, descriptive and analytical randomised study blinded to the surgeon conducted in the operating theatre of the Saint Louis Regional Hospital Centre. Patients were randomised into two groups: those who received vecuronium after rapid sequence induction (group V) and those who received bilateral TAP block without curares (group T). Anamnestic, clinical, anaesthetic, surgical and evolutionary aspects were collected and analysed. The main evaluation criteria were: pneumoperitoneum pressure, exhaled CO2, respiratory motor pressure and surgeon satisfaction scale. Results: We collected 61 patients admitted for laparoscopic abdominal surgery. The mean age was 32.9 years with a standard deviation of 14.5. Appendicitis was the indication in 55% of cases. The Propofol-celocurine-TAP-block anaesthetic protocol was used in 25 patients, i.e. in 41% of cases, and 59% of patients had undergone a conventional induction using vecuronium. The mean pressure of the pneumoperitoneum was 11.3 mmHg for the conventional induction group and 12.6 mmHg for the TAP-block group. The mean respiratory motor pressures were 12 cmH2O for the conventional induction group and 13.7 cmH2O for the TAP-block group. The mean value of exhaled CO2 was 37.5 mmHg. Fentanyl reinjections were more frequent in the conventional induction group in 55.6% of cases. The mean VAS at 6 hours post-op was 4.5 for the conventional induction group and 3 for the TAP-block group. Discussion/Conclusion: The ultrasound-guided trans-abdominal-pelvic block remains an effective, durable and reproducible technique. Its advantages in terms of postoperative analgesia are well known. In addition, its selective effects on muscle ......
Comparative Assessment of the Effect of EDTA, Lactic acid and Citric acid on Root Dentin Microhardness
Authors: Boopathi Thangavel , Manimaran Sekar , Kerena Joseline , Sebeena Mathew , Karthick Kumaravadivel , Deepa Natesan Thangaraj
Published: November 2023

Aim: To determine the effect of ethylenediaminetetraacetic acid (EDTA), lactic acid and citric acid on root dentin microhardness. Materials and Methods: In this in vitro study, twenty freshly extracted anterior teeth were transversely sectioned at the level of cementoenamel junction. The middle third of each root is then horizontally sectioned into slices that are 4 mm thick to obtain a total of 20 dentin discs. Based on the chelating agent used, the samples were randomly divided into four groups- saline (control group), 17% EDTA, 20% lactic acid and 10% citric acid. Vicker’s indenter was used to test the microhardness of the dentin before and after treatment with the chelating agents for two minutes. Data was obtained and statistically evaluated using a one-way analysis of variance (ANOVA), paired – t test and Tukey’s post hoc test. Results: The microhardness values varied significantly among the groups. Citric acid and and lactic acid were less effective at reducing dentin microhardness. EDTA led to a higher reduction in microhardness. Conclusion: All the chelating solutions reduced the microhardness. Lactic acid showed less alteration in the hardness of root dentin than EDTA.
Creating Positive Classroom Climate for Secondary School Goal Attainment in Rivers State, Nigeria
Authors: Sunday Osaat Dinah
Published: November 2023

The study examined the strategies for creating positive classroom climate for secondary school goal attainment. The descriptive research design was adopted. The population comprised all the 6,956 teachers in the 278 public secondary schools in Rivers state. The sample of 250 teachers was selected using purposive and stratified random sampling techniques. A 20 item questionnaire titled ‘Creating Positive Classroom Climate for Secondary School Goal Attainment Questionnaire’ (CPCCSSGAQ) structured on a four point modified likert type scale of Strongly Agreed (4points), Agreed (3points), Disagreed (2points) and Strongly Disagreed (1point) was used for data collection. Data collected were analysed using mean to answer the research questions while z-test was used to test the hypotheses at 0.05 level of significance. The findings showed that creating positive classroom climate can be done by building relationship between teachers and students, organising the physical environment, developing and reinforcing rules to guide the class and promoting collaboration among students by creating groups based on different skills and interest. It concludes that when these strategies are adopted to enhance positive classroom climate, that good teaching and learning leading to attainment of secondary school goals will be achieved. Based on the findings the following recommendations were made; that teachers should be given adequate orientation on the strategies for creating positive classroom climate so that they can adequately apply them in their classes, the government should provide teachers with good incentives to motivate them relate and interact well with the students to enhance effective teaching and learning and finally that the principals should engage in adequate supervision of teachers encouraging them to adopt the strategies to create positive classroom climate to achieve effective teaching and learning leading to attainment of secondary school goals.
Managing Maternal Sepsis after Delivering an Advanced Abdominal Pregnancy in Low Resource Setting Health Facility
Authors: Macharia Sr. Juliet , Kihunrwa Albert , Kiritta Richard , Matovelo Dismas , Ndaboine Edgar , John Feredina , Tegete Francis
Published: November 2023

Background: Abdominal pregnancy is a rare form of ectopic pregnancy with a higher misdiagnosis rate. Sepsis is a life-threatening complication associated with this type of ectopic pregnancy. Various techniques for managing septic advanced abdominal pregnancy have been discussed in the literature. In this article, we report a case of managing septic abdominal pregnancy in which a macerated baby was delivered, and the necrotic placenta was left in situ. Case presentation: We report a 34-year-old African woman, para 5 living 4, who was three days post laparotomy due to abdominal pregnancy. A re-laparotomy was done due to maternal sepsis. The peritoneum had foul-smelling pus, with a necrotized placenta which was still attached to various parts of the abdomen. The placenta was left in situ and the abdomen was left open. Pus swab revealed methicillin-resistant staphylococcus aureus which was sensitive to Vancomycin. She was managed with a ten-day Vancomycin regime. Dressing with normal saline and honey twice or thrice a day for eight weeks was done. Secondary suturing was done and the patient was discharged home later in good health. Conclusion: Advanced abdominal pregnancy is a rare condition, and its management is very challenging. Once it complicates into maternal sepsis the life of the mother becomes endangered. Identifying and treating the source of infection with daily dressing using normal saline and honey is simple and cheap, it saves life.
The Effect of Appropriate Placement of Employees with Disabilities on Work Productivity
Authors: Sadat Lubna Anwar , Najie Ilyu ‘Ainun
Published: November 2023

Disabled employee placement is an increasingly important topic in the context of employment equity. The problem of imbalance or mismatch in the placement of employees with disabilities in the work environment can affect work productivity and career continuity. The purpose of this study is to analyze the effect of appropriate placement of employees with disabilities on work productivity. This research uses quantitative methods. Data were collected through questionnaires distributed to employees with disabilities in various companies in Indonesia. The population in this study were employees with disabilities in Indonesia. The sampling technique was carried out using random sampling technique. The data collected was analyzed using simple linear regression statistical tests. The results showed that appropriate placement has a positive influence on the work productivity of employees with disabilities. Disabled employees who are placed in positions that match their abilities have higher work productivity than disabled employees who are placed in inappropriate positions. Therefore, companies need to place employees with disabilities carefully and pay attention to their abilities.
EFEKTIVITAS VAKSIN INAKTIF Aeromonas salmonicida Terhadap Total Leukosit dan Aktifitas Fagositosis PADA IKAN KOI (Cyprinus carpio)
Authors: Ciptaning Weargo Jati
Published: November 2023

Aeromonas  salmonicida, merupakan bakteri penyebab ikan menderita  pendarahan, lesi otot, radang usus, pembesaran limpa dan menyebabkan kematian pada populasi ikan mas. Penyakit ini sangat merugikan dalam budidaya ikan karena serangannya yang cepat dan dapat mematikan hewan budidaya dan menurunkan tingkat produksi, sehingga ikan yang terserang bakteri cukup parah harus segera dimusnahkan. Berdasarkan hal tersebut diperlukan pendekatan pencegahan yang lebih alami untuk penanggulangan penyakit yang disebabkan oleh bakteri A. salmonicida, salah satunya adalah dengan penggunaan vaksin. Penelitian ini menggunakan variabel bebas berupa perlakuan pemberian vaksin inaktif A. salmonicida dengan dosis A: 104sel/ml; B: 106sel/ml; C: 108sel/ml; D: 1010sel/ml  dengan tiga kali ulangan, serta menggunakan dua kontrol pembanding yaitu kontrol negatif dan kontrol positif. Dengan parameter uji viabilitas, Total Leukosit, Aktivitas Fagositosis, gejala klinis, dan kualitas air. Pengujian titer antibodi, gejala klinis, RPS (Relative Percent Survival) dan kualitas air dilakukan setelah 1-14 hari dari uji tantang dan pemberian vaksin 1 dan 2 (booster). Hasil penelitian ini menujukan peningkatan pada perlakuan C (108) berpengaruh dpaling tinggi dalam mencegah infeksi bakteri patogen A.salmonicida ditandai dengan peningkatan total leukosit sebelum dan sesudah infeksi sebesar 55,83 dan 59,43 sel/ml. Nilai aktivitas fagositosis sebesar 34,09 dam 31,88, dan pada gejala klinis ikan mengalami penyembuhan setelah hari ke 8 - 14 setelah infeksi.
ANALISIS KELIMPAHAN BAKTERI Vibrio sp. PADA MEDIA BUDIDAYA DAN HEPATOPANKREAS UDANG VANNAMEI (Litopenaeus vannamei) DI KOLAM TERTUTUP DAN TERBUKA
Authors: Saraswati Erika , Putri Clara Berliana , Sari Serli Novita
Published: November 2023

Vibrio Sp. merupakan salah satu bakteri penyebab penyakit pada budidaya udang yang dapat menyebabkan kematian maupun penurunan produktivitas budadaya udang. Inovasi dalam budidaya udang telah banyak dilakukan. Salah satunya adalah dengan menerapkan usaha budidaya pada kolam tertutup (indoor) dan kolam terbuka (outdoor) sebagaimana pada umumnya. Penerapan inovasi budidaya ini tentunya akan menyebabkan perbedaan terhadap kondisi media budidaya udang yang pada gilirannya akan mempengaruhi kondisi udang yang dipelihara. Sebagai indikator utama kesehatan udang, dilakukan analisis kelimpahan Vibrio Sp. pada media pemeliharaan dan hepatopankreas udang Litopenaeus vannamei di kolam tertutup dan terbuka. Hasil penelitian menunjukkan adanya perbedaan kelimpahan Vibrio Sp. baik pada media budidaya maupun hepatopankreasnya. Kelimpahan Vibrio Sp. pada media budidaya di kolam terbuka lebih tinggi daripada di kolam terbuka, masing-masing dengan nilai 22743 CFU/ml dan 10468 CFU/ml. Sedangkan kelimpahan bakteri Vibrio Sp. pada hepatopankreas udang Vannamei di kolam tertutup lebih tinggi daripada di kolam terbuka yaitu sebesar 796400 CFU/ml dan 571000 CFU/ml.
Analisis Supply Chain Management Komoditas Rajungan di Kecamatan Gebang Kabupaten Cirebon
Authors: Febianah Mita , Fitriasari Novi Sofia , Anzani Luthfi
Published: November 2023

Rajungan merupakan salah satu spesies sumber daya pesisir di Indonesia yang dari tahun ke tahun nilai ekonominya terus mengalami peningkatan, hal ini dikarenakan tingginya permintaan ekspor rajungan di setiap tahunnya. Permintaan ekspor rajungan yang tinggi tentunya membuat para nelayan terus melakukan kegiatan penangkapan, akan tetapi kondisi ini belum dapat membuat nelayan sebagai pelaku pemasaran yang memiliki margin keuntungan paling besar. Tujuan penelitian ini adalah untuk menganalisis supply chain management terkait aliran produk, aliran keuangan, dan aliran informasi komoditas rajungan di Desa Gebangmekar, Kecamatan Gebang, Kabupaten Cirebon. Desain penelitian yang digunakan yaitu penelitian deskriptif kualitatif. Sedangkan data yang digunakan yaitu data primer dan data sekunder. Hasil penelitian ini menunjukan bahwa rajungan di Desa Gebangmekar memiliki kualitas yang telah memenuhi standar ekspor, namun masih didistribusikan juga untuk konsumen lokal maka dari itu memiliki struktur jaringan alur rantai yang berbeda-beda dan secara keseluruhan supply chain rajungan di Desa Gebangmekar sudah cukup baik akan tetapi masih terdapat beberapa hal yang harus diperbaiki.
Revolutionizing Lung Cancer Diagnosis: A Comprehensive Review of Image Processing Techniques for Early Detection and Precision Medicine
Authors: Sanjay S Tippannavar  , Yashwanth S D  , Gayatri S  , Eshwari A Madappa
Published: November 2023

According to World Health Organisation (WHO), lung cancer is the leading cause of cancer-related fatalities in both genders and has the highest fatality rate. Early detection of pulmonary nodules is essential to improving the significant survival rate of lung cancer due to the typical proliferation of lung cells. Studies on lung cancer indicate that smoking is the primary cause of this disease, which is more common in women nowadays and causes more deaths than breast cancer. Age, gender, race, socioeconomic status, exposure to the environment, air pollution, alcohol consumption, and second-hand smoking are a few more factors that could be significant in causing lung cancer. Early detection of lung cancer is achieved through a variety of image processing techniques, such as computed tomography (CT), bone scanning, magnetic resonance imaging (MRI), Positron Emission Tomography, PET-CT, and X-ray scanning. These techniques are combined with machine learning algorithms, data mining, and artificial intelligence-based detection techniques, which improve detection through efficient computing systems known as computer assisted diagnosis (CAD). Since practically all lung cancer screening and detection is dependent on image processing, this article will serve as a reference for aspiring researchers to understand the many detection strategies in effectively identifying lung cancer. Additionally, five distinct methods are evaluated and critically analysed, along with their benefits and drawbacks, taking into account the present and potential future developments in early lung cancer diagnosis for human survival.
Exploring Machine Learning Approaches to Precipitation Prediction: Post Processing of Daily Accumulated North American forecasts
Authors:   , Goomer Rushil
Published: November 2023

This thesis presents recent work on exploring machine learning (ML) and deep learning (DL) models to improve the accuracy of 24 hour precipitation forecasts. Leveraging a comprehensive North American dataset of precipitation values from Numerical Weather Prediction (NWP) models and secondary meteorological features, the research showcases the need of ML techniques in post-processing NWP precipitation predictions. The evaluation reveals remarkable performance improvements over baseline model, with certain ML models achieving a 15% reduction in Mean Absolute Error (MAE), a 5% decrease in Root Mean Squared Error (RMSE), a 45% reduction in Median Absolute Error (MdAE), and a 50% decrease in Relative Bias (RB). Convolutional Neural Networks (CNN) and Gradient Boosting Regressor (GBR) emerged as top performers, demonstrating their proficiency in accurately predicting daily precipitation.
2022 socioeconomic research of Isle Royale National Park: Report on 2022 data collection
Authors:   Otak, Inc.,   RRC Associates,   University of Montana
Published: November 2023

A strong mandate and need for socioeconomic monitoring are expressed in the NPS strategic goals for science, in statements by the NPS leadership, and the report of the Second Century Commission. This mandate resulted in a pilot socioeconomic monitoring study in 2015/2016 at a sample of park units across the U.S; the current study uses outcomes from the first stage of the pilot program and progresses into a second stage of the pilot process at 24 NPS units across the United States. Isle Royale National Park (Isle Royale) was selected as one of these units. This report informs core issues of visitor use management and develops a deeper, contemporary understanding of who visits Isle Royale and what they do during their visit. It uses a two-phased survey methodology to capture a representative sample of visitor information, characteristics, and behavior: (1) an on-site intercept survey conducted via tablet, and (2) a follow up (mail-back and/or online survey) for full trip details. The results are organized by these two phases and are aimed to assist park managers in understanding current utilization and perception of park resources, operations and potential issues, as well as facilitating communication and decision-making processes within the park and between the park and its local partners and stakeholders.
Estimation of Technical Efficiency of Sorghum Production in Dejen District, North-west Ethiopia
Authors: Chanie Kassa , Molla Tsegaye
Published: November 2023

Ethiopian agriculture is characterized by low productivity due to natural, social, economic, and institutional factors. Farmers with homogeneous resources produce different outputs per hectare due to inefficient utilization of limited resources. There is no due attention given to crop production efficiency issues, particularly in sorghum production. The objective of this study was to assess the level of technical efficiency and its determinant factors on sorghum production in Dejen District, North-west Ethiopia. The two-stage sampling procedure was used to determine the sample size. Data were collected from 192 households using a systematic random sampling technique. A semi-structured questionnaire was used for the data collection. Focus group discussions and key informant interviews were also conducted. Both descriptive statistics and econometric analysis were used for data analysis. The average technical efficiency of Sorghum producers was 62.8%, with a min of 23.5% and a max of 96.7%. About 37.2% of output variation from optimal production was observed in the study area. The estimated Gamma (γ) value was 73.4% indicating the presence of inefficiency. Thus, farmers have a chance to maximize their output level by making efficient use of existing resources and technology
Influence of Menstrual Hygiene and Sanitation on Girls Participation in Primary School Education in West Pokot County, Kenya: Head teachers Opinion
Authors: Andiema Nelly C.
Published: November 2023

The attainment of education for all objectives ensures that girls participate in education across the academic year even during their menstrual period. The menstrual health and hygiene management requires provision of adequate toilets, water, and sanitary pads for girls. Data from Sub-County Director of Education for Kacheliba showed that the retention and completion rate of girls for 2022 in primary school was below that of boys. This paper sought the head teachers’ opinion regarding girls’ menstrual hygiene and sanitation and its influence on girls' participation in primary school education. The study was conducted in 39 public primary schools in Kacheliba Sub-County (North Pokot), West Pokot County Kenya. The study adopted both qualitative and quantitative approaches. A sample size of 12 schols representing 30.0% were selected using simple random sampling technique. Data was collected through a structured questionnaire administered to head teachers in the selected schools. Analysis of data was done using descriptive statistics and thematic content analysis for qualitative data. Research results showed that majority of schools had inadequate toilets to be used by girlsas they ended up sharing the available ones with boys. This made it uncomfortable for them to share the toilets during their menstrual period. Considering being semi-arid, water availability was inadequate as only 1 out of 11 schools was found to have water supply during the whole academic year. The government of Kenya programme of providing free sanitary pads to girls across public primary schools in the country was found to be irregular. This state of affairs made most girls in Kacheliba sub countyabsent from school during their menstrual period. The paper concludes that menstrual hygiene and sanitation negatively affected girl child participation in primary education because incidents of absenteeism were high, truancy cases and retention was low. The the government should provide capitation funds vote for schools to purchase sanitary towels, partner with other organisations to set up hygiene and sanitation facilities, and educate the community on the need for supporting girl child menstrual hygiene and management