Miracle-dz/UniFAR-FTUs huggingface dataset:
Evaluating postgraduate family medicine supervisor feedback in registrars’ learning portfolios

Background Postgraduate supervision forms a vital component of decentralised family medicine training. While the components of effective supervisory feedback have been explored in high-income countries, how this construct is delivered in resource-constrained low- to middle-income countries has not been investigated adequately. Aim This article evaluated supervisory feedback in family medicine registrars’ learning portfolios (LPs) as captured in their learning plans and mini-Clinical Evaluation Exercise (mini-CEX) forms and whether the training district or the year of training affected the nature of the feedback. Setting Registrars’ LPs from 2020 across five decentralised sites affiliated with the University of the Witwatersrand in South Africa were analysed. Methods Two modified tools were used to evaluate the quantity of the written feedback in 38 learning plans and 57 mini-CEX forms. Descriptive statistics, Fisher’s exact and Wilcoxon rank-sum tests were used for analysis. Content analysis was used to derive counts of areas of feedback. Results Most learning plans (61.2%) did not refer to registrars’ clinical knowledge or offer an improvement strategy (86.1%). The ‘extent of supervisors’ feedback’ was rated as ‘poor’ (63.2%), with only 14.0% rated as ‘good. ’ The ‘some’ and ‘no’ feedback categories in the mini-CEX competencies (p < 0.001 to p = 0.014) and the ‘extent of supervisors’ feedback’ (p < 0.001) were significantly associated with training district. Feedback focused less on clinical reasoning and negotiation skills. Conclusion Supervisors should provide specific and constructive narrative feedback and an action plan to improve registrars’ future performance. Contribution Supervisory feedback in postgraduate family medicine training needs overall improvement to develop skilled family physicians.
Correlation and interaction between temperature and freeze-thaw in representative regions of Antarctica

ABSTRACT As the most sensitive and direct indicator of global climate change, the freezing and thawing of the Antarctic ice sheet is of great significance for research on surface mass and energy balance. In this study, four representative regions in Antarctica were selected and correlation analysis, Granger causality testing, and cluster analysis were applied to comprehensively analyze the correlation and response of spatiotemporal variation in freeze-thaw and temperature. The conclusions are as follows. (1) In the Antarctic Peninsula, a phenomenon was demonstrated that the summer shifts rearward. Hotter December and colder March temperatures were observed in the Amery Ice Shelf and Queen Maud Land. (2) The Antarctic Peninsula featured the most severe degree of melting among the four regions, with the largest melt area in the past 30 years appearing during the 2015/2016 season. However, the number of melt days in most areas of the Antarctic Peninsula was observed to have decreased. (3) There is a strong correlation between the freeze-thaw state of the Antarctic ice sheet and temperature, as well as spatial differences among regions, but the data were clustered at different time scales.
Measuring the frequency of light with a mode-locked laser

Ever since it became possible to directly measure optical frequencies in the early 1970s, large and delicate harmonic frequency chains where necessary for this task. Because of this tremendous effort, only a few of these chains have been realized worldwide. A harmonic frequency chain, that is designed to measure only one particular optical frequency, starts from a well known reference frequency either in the radio frequency or in the optical region. With a chain of frequency multiplication steps (and possibly sum - and difference frequency generation) the unknown target frequency is phase coherently linked to the reference frequency. This approach makes it necessary to traverse the whole electromagnetic spectrum between the reference and the target frequency with different oscillators, detectors and nonlinear devices. The use of a femtosecond mode locked laser as an active frequency comb generator immediately enabled the measurement of large optical frequency differences by referencing the mode spacing and counting a large number of modes.
PENINGKATAN PELAYANAN PELANGGAN DAN PROMOSI UMKM LA SANO LIFE UNTUK MENINGKATKAN KEPUASAN PELANGGAN DAN ANGKA PENJUALAN

Pelayanan pelanggan dan promosi merupakan dua faktor utama yang menjadi ketertarikan konsumen dalam melakukan pembelian. Namun, suatu bisnis seringkali mengabaikan kedua faktor tersebut, sehingga pada akhirnya penjualan yang dilakukan tidak dapat berkembang secara maksimal. Kegiatan pengabdian kali ini bertujuan meningkatkan tingkat kepuasan pelanggan, exposure toko, dan angka penjualan pada UMKM La Sano Life melalui kegiatan penyuluhan dan pelatihan yang berkaitan dengan cara memaksimalkan pelayanan kepada konsumen, serta cara melakukan promosi yang dapat menarik minat pembeli. Melalui kegiatan ini, pengabdi berhasil meningkatkan tingkat kepuasan pelanggan, exposure toko, dan angka penjualan mitra secara signifikan dalam waktu tiga (3) minggu. Pemilik bisnis dan karyawan La Sano Life harus senantiasa mengunggah konten informatif dan promosi secara berkala untuk memastikan adanya interaksi dengan konsumen, serta memperoleh kesempatan untuk meningkatkan angka penjualan. Mitra juga harus selalu mengingat bahwa pelayanan merupakan faktor utama untuk meningkatkan kepuasan pelanggan, sehingga sikap pelayanan dalam melakukan interaksi dan transaksi dengan konsumen maupun pelanggan merupakan hal yang krusial.
Using a computational model for the auditory midbrain to explore the neural representation of vowels

A formant-based approach to representing vowel quality is anchored in acoustic theory and is well documented in perception studies and in auditory modeling. This ongoing study investigates the representation of vowels in the responses of auditory models at the level of the midbrain (inferior colliculus). Previous modeling and physiological results have shown that formant structure is conveyed by changes in neural rates of midbrain cells that are tuned to amplitude modulations near voice pitch frequency. The current study examined model population responses to 20 speakers (10 males, 10 females) reciting 12 English vowel contrasts from the Hillenbrand et al. database [J. Acoust. Sci. Am. 97, 3099 (1995)]. Pairwise correlations across model population responses for each vowel were used to evaluate variability in the neural representations. Results show that the acoustical variability associated with the vowel contrasts is maintained in these neural representations. Thus, variability in the acoustic vowel space is maintained after the nonlinear responses of realistic auditory-nerve models and midbrain models for amplitude modulation tuning. Our goal is to extend our knowledge of the neural representation of the vowel space using a computational model for the responses of auditory neurons to ensembles of speech tokens.
Light curves of the trans-Neptunian objects 1996 TP66 and 1994 VK8

AbstractWe have obtained a number of CCD images of two trans-Neptunian objects, 1994 VK8 and 1996 TP66, over two nights. The changes in magnitude of these objects have been examined, in a search for periodic variation. In the case of 1996 TP66, nothing other than random noise can be found to within the errors of ∼0.04 mag. Although a periodic signal is found for 1994 VK8, it appears to be an artefact, as the same frequency appears in the variation of sky brightness and is probably due to the sampling of the data. However, 1994 VK8 does exhibit a variation of ∼0.5 mag. This would suggest either significant non-sphericity or a change in surface composition over a large area. In either case 1994 VK8 warrants further investigation.
Towards simulating time evolution of specific quantum many-body system by lower counts of quantum gates

In the noisy intermediate-scale quantum (NISQ) era, quantum computers have become important tools to simulate the real-time evolution of strong correlated many-body systems. The general scheme of designing quantum circuits to simulate the quantum dynamics is based on the Trotter-Suzuki decomposition technique, which has its limitation because the accuracy of evolution process depends on the size of trotter steps when the evolution operator is decomposed as quantum gates. Going beyond the limitation of the Trotter-Suzuki scheme, we design a parameterized quantum circuit named α-circuit with simple determined size and the only one control parameter θ to simulate the real-time evolution of the specific XXX Heisenberg model with the specific initial state . The α-circuit can accurately generate the time-evolution results by tuning parameter θ, which means the circuit can also be regarded as a good state preparation machine (SPM).
A 20-year MSU dataset for atmospheric temperature change studies

The Microwave Sounding Unit (MSU) on board the National Oceanic and Atmospheric Administration (NOAA) polar-orbiting satellites were designed to measure the atmospheric temperature from the surface to the lower stratosphere under all weather conditions, excluding precipitation. Although the instrumental design and calibration were made primarily for monitoring the atmospheric weather processes, the MSU observations have been extensively used for detecting climate trend. However, calibration errors have been a major uncertainty in climate trend detections. In order for the MSU data to be of high quality for climate trend and variability research, we have recently recalibrated the MSU satellites NOAA 10, 11, 12, and 14 using simultaneous nadir overpass (SNO) method. The calibration results in a well-merged 20-year radiance dataset for the MSU channels 2, 3, and 4. Limb-correction is applied to adjust the incident angles of the footprints. The limbcorrected radiances are further binned into 2.50 longitude by 2.50 latitude grids to generate deep-layer temperature datasets for the mid-troposphere (T2), tropopause (T3), and lower-stratosphere (T4). The global ocean averaged trends for the recalibrated T2, T3, and T4 are respectively 0.234±0.071 K/decade, 0.079±0.085 K/decade, and -0.414±0.287 K/decade for the 20-year time period from 1987 to 2006. Both the recalibrated radiance and deep-layer temperature datasets are freely available through the NESDIS/STAR website http://www.orbit. nesdis.noaa. gov/smcd/emb/mscat/mscatmain.htm htm.
Magnetic flux transfer at the magnetopause based on single X line bursty reconnection

A model of flux transfer events (FTEs) at the dayside magnetopause is proposed, which is based on non-stationary reconnection along a single X line over a large longitudinal segment. An individual field line coming from the magnetospheric side constitutes after reconnection a loop-like structure in the magnetopause current layer and leaves into the magnetosheath. In the presence of a By component of the magnetic field in the transition region of the magnetopause each loop is twisted in the y direction. Whereas traditionally FTEs are considered to be localized flux tubes with a helical field inside, in the present model field lines come from the magnetospheric side over a large longitudinal segment, have a loop-like structure in the magnetopause resulting in the FTE signatures, and leave over the same segment in longitude into interplanetary space.
Capacidad de las TIC para virtualizar el trabajo de campo teoría y práctica desde la geografía

La didáctica geográfica en la enseñanza superior incorpora el trabajo de campo como instrumento de primer orden. Las salidas de campo constituyen la base de la investigación geográfica puesto que proporcionan conocimiento sobre los elementos configuradores y procesos del espacio geográfico. Las geotecnologías cuentan con capacidad para recrear virtualmente escenarios análogos a las salidas tradicionales. Se compararon las cualificaciones de dos grupos de alumnos sin encontrarse diferencias significativas entre los que realizaron salidas virtuales y tradicionales. La virtualización de las salidas de campo es un elemento útil y de inclusividad más allá del contexto de pandemia.
Wavelength Assignment Techniques with Converters for All Optical Networks (AONs)

We present an optical routing and wavelength assignment (RWA) technique for the best placement of the wavelength converters. The wavelength converter placement was considered independently at the complete nodes and partial nodes. In comparison to existing approaches, our technique performs better and requires fewer wavelength converters to get the required performance. As much as 7%, the likelihood of blocking is decreased. The study also demonstrates that the top four nodes have the biggest influence over the blocking performance of the network. It is clear that placing the converters in the right location is just as crucial to improving performance as simply adding more converters.
New Graduate Nurses' Experiences and Challenges during a One-Year Clinical Rotation Programme in the Volta Region of Ghana: Implications for Nursing Management and Nursing Workforce Retention

Background To help improve the standards and quality of nursing practice, newly graduated nurses and midwives are required after passing the Nursing and Midwifery Council's Licensing Examination to undertake a one-year mandatory clinical rotation at health facilities before registration. However, there is a lack of scientific studies to explore new graduate nurses' experiences and challenges during the one-year mandatory clinical rotation programme. Aim This study is aimed at exploring newly qualified nurses' experiences and challenges during the one-year mandatory clinical rotation in health facilities in the Volta Region of Ghana. Methods This qualitative exploratory study used a combination of focus group discussions (FGDs) and individual interviews. Thirty (30) newly qualified nurses were selected from two secondary and one tertiary health facilities, where newly qualified nurses are posted for a clinical rotation programmes to participate in the study. A total of two focus group discussions (FGDs) were conducted, comprising five (5) members in each group. Moreover, twenty (20) newly qualified nurses were interviewed individually, and their data were added to what was obtained from the focus group discussions. This study adopted the thematic analysis approach to analyze the data. Results The results of this study showed that newly qualified nurses experienced the following during the one-year clinical rotation programme: acquisition of more knowledge and competencies to assume professional nursing roles; lack of knowledge of the objectives of the clinical rotation programme by hospital staff; experience of frustration during the clinical rotation programme; inadequate supervision and support; accommodation and financial challenges. Conclusion The study revealed important challenges experienced by new graduate nurses during the clinical rotation programme, including hospital staff's lack of knowledge regarding the objectives of the rotation programme, inadequate supervision and support, and accommodation and financial challenges. There is a need for the Nursing and Midwifery Council to develop guidelines for the one-year mandatory clinical rotation for newly graduated nurses and midwives to make the programme more effective.
Generation of flat-top beam with phase-only liquid crystal spatial light modulators

A system containing two-phase-only liquid crystal spatial light modulators (LC-SLMs) is designed to convert a quasi-Gaussian beam into a flat-top beam. The first LC-SLM redistributes the intensity and the second LC-SLM re-collimates the reshaped beam. The phase distributions of the LC-SLMs are derived based on energy conservation and the constant optical path length principle. The influences of deviations of the beam waist and beam shape from the assumed value are analyzed in detail. Experimental results show that approximately 71.5% of the incident power is enclosed in a region with less than 6% rms power variation. The performance is compared quantitatively with the theoretical design. The far-field intensity distribution and the phase distribution of the reshaped beam show that the wavefront after reshaping is maintained.
Detecting the phenomenon of strange non-chaotic attractors

I comment on how chaos might be defined. A sample of dynamical systems that have quasi-periodic forcing functions is then considered. The normal approach found in the literature is to start with an ordinary differential equation, change to a difference equation, and then plot a graph. The question of how to detect a strange non-chaotic attractor without the underlying ordinary differential equation is posed and some pointers are given as to a possible method of solution using statistical analysis. References Banks J., Brooks J., Cairns G. , Davis G. and Stacey P., On Devaney's definition of chaos, American Mathematics Monthly . 99 (1992), 332--334. Box G. E. P, Jenkins G. M. and Reinsel G. C. , Time series analysis John Wiley and Sons, New Jersy, 2008. Feitelson D. G. , Workload modeling for performance evaluation, In: Lecture notes in computer science , vol. 2459, Springer, Berlin, 2002, 114--141. Glendinning P., The nonsmooth pitchfork bifurcation, Discrete and Continuous Dynamical Systems B . 4 (2004), 457--464. Glendinning P., T. H. Jager and G. Keller, How chaotic are strange non-chaotic attractors? , Nonlinearity . 19 (2006), 2005--2022. Glendinning P., View from the Pennines: strange nonchaotic attractors, Mathematics Today . 44 (2008), 119--120. Keller G. , A note on strange nonchaotic attractors, Fundamenta Mathematicae . 151 (1996), 139--148. Li H. , Workload dynamics on clusters and grids, Journal of Supercomputing . 47) (2009), 1--20. Lublin U. , Feitelson D. G. , The workload of parallel supercomputers: modeling the characteristics of rigid jobs, J. Parallel Distrib Comput . 63(11) (2003), 1105--1122. Squillante M. S. , Yao D. D and Zhang L. The impact of job arrival patterns on parallel scheduling, ACM SIGMETRICS Perform Eval Rev. 26(4) (1999), 52--59.
Energy-Performance Optimization via P/N Ratio Sizing With Full Diffusion Layout Structure and Standard Cell Height Tuning in Near-Threshold Voltage Operation

In recent decades, near-threshold voltage (NTV) design has become a well-known technique for improving the energy efficiency of digital integrated circuits. However, scaling down the operating voltage to the NTV raises two major challenges for robust operation: process variability and performance degradation. In this study, we propose a joint optimization technique for standard cell design to address the challenge of performance degradation in NTV design. The standard cell P/N ratio (PMOS width to NMOS width ratio) is being sized to maximize the performance with the constraint of a full diffusion (FD) layout structure, and the standard cell height is jointly optimized to further improve the circuit’s performance or energy consumption. Increasing the standard cell height improves the circuit performance at the cost of higher energy consumption, whereas lowering the standard cell height sacrifices the circuit’s performance for better energy saving. The results showed that implementing the taller library (14-track) in an AMBA high-speed bus (AHB) controller circuit can improve performance by up to 4.5%. The shortest library (7-track) resulted in 55% energy savings in the same circuit implementation. The test chip fabricated in 110-nm CMOS technology demonstrated successful operation of 8051 microcontroller down to 0.6V with the custom-designed 7-track library. The measurement results showed 4.3X energy saving compared to the operation at a supply voltage of 1.2V.
A Survey on LoRa for Smart Agriculture: Current Trends and Future Perspectives

This article provides a survey on the adoption of LoRa in the agricultural field and reviews state-of-the-art solutions for smart agriculture, analyzing the potential of this technology in different infield applications. In particular, we consider four reference scenarios, namely, irrigation systems, plantation and crop monitoring, tree monitoring, and livestock monitoring, which exhibit heterogeneous requirements in terms of network bandwidth, density, sensors’ complexity, and energy demand, as well as latency in the decision process. We discuss how LoRa-based solutions can work in these scenarios, analyzing their scalability, interoperability, network architecture, and energy efficiency. Finally, we present possible future research directions and point out some open issues which might become the main research trends for the next years.
Molecular Characterization of Tropomyosin and Its Potential Involvement in Muscle Contraction in Pacific Abalone

Tropomyosin (TPM) is a contractile protein responsible for muscle contraction through its actin-binding activity. The complete sequence of TPM in Haliotis discus hannai (Hdh-TPM) was 2160 bp, encoding 284 amino acids, and contained a TPM signature motif and a TPM domain. Gene ontology (GO) analysis based on the amino acid sequence predicted Hdh-TPM to have an actin-binding function in the cytoskeleton. The 3D analysis predicted the Hdh-TPM to have a coiled-coil α-helical structure. Phylogenetically, Hdh-TPM formed a cluster with other TPM/TPM1 proteins during analysis. The tissue-specific mRNA expression analysis found the higher expression of Hdh-TPM in the heart and muscles; however, during embryonic and larval development (ELD), the higher expression was found in the trochophore larvae and veliger larvae. Hdh-TPM expression was upregulated in fast-growing abalone. Increasing thermal stress over a long period decreased Hdh-TPM expression. Long-term starvation (>1 week) reduced the mRNA expression of Hdh-TPM in muscle; however, the mRNA expression of Hdh-TPM was significantly higher in the mantle, which may indicate overexpression. This study is the first comprehensive study to characterize the Hdh-TPM gene in Pacific abalone and to report the expression of Hdh-TPM in different organs, and during ELD, different growth patterns, thermal stress, seasonal changes, and starvation.
The star-formation history of very young clusters

The popular idea that star formation has proceeded sequentially from lowest to highest mass members in open clusters is examined critically. For extremely young clusters, such as NGC 2264 and NGC 6530, this sequential hypothesis is a consequence of the assignment of pre-main-sequence contraction ages to all member stars. However, such ages yield a formation history which is implausible from a physical point of view, since the critical time for the onset of formation at any stellar mass is equal to the pre-main-sequence contraction time for that mass. Moreover, these ages are in conflict with the strong observational evidence that a substantial fraction of cluster members have already reached the main sequence. After reconsideration of the probable main-sequence members, the stellar ages in NGC 2264 and NGC 6530 are consistent with a variety of formation histories, and, in particular, with the view that all stellar masses form in approximately the same interval of time within a given cluster, i.e., that there is no mass-age correlation. A notion closely related to the sequential hypothesis, that the total star-formation rate increases exponentially with time, is subject to the same criticism.
Velocity‐field characteristics of III‐V semiconductor alloys: Band structure influences

We have calculated the velocity‐field characteristics of semiconductor alloys based on realistic band structures and have obtained the band structures and alloy‐scattering rates from a generalization of the coherent potential approximation method. Although we use proper band structures, we still consider a single electron‐temperature model. The results agree surprisingly well with experiments, and suggest that InP‐based alloys are good candidates for high‐speed devices.