Miracle-dz/UniFAR-FTUs huggingface dataset:
Joint Spatial Division and Coaxial Multiplexing for Downlink Multi-User OAM Wireless Backhaul

Orbital angular momentum (OAM) at radio frequency (RF) provides a novel approach of multiplexing a set of orthogonal modes on the same frequency channel to achieve high spectral efficiencies (SEs). However, the existing research on OAM wireless communications is mainly focused on point-to-point transmission in the line-of-sight (LoS) scenario. In this paper, we propose an overall scheme of the downlink multi-user OAM (MU-OAM) wireless backhaul based on uniform circular arrays (UCAs) for broadcasting networks, which can achieve the joint spatial division and coaxial multiplexing (JSDCM). A salient feature of the proposed downlink MU-OAM wireless backhaul systems is that the channel matrices are completely characterized by the position of each small base station (SBS), independent of the numbers of subcarriers and antennas, which avoids estimating large channel matrices required by the traditional downlink multi-user multiple-input multiple-output (MU-MIMO) wireless backhaul systems. Thereafter, we propose an OAM-based multi-user distance and angle of arrival (AoA) estimation method, which is able to simultaneously estimate the positions of multiple SBSs with a flexible number of training symbols. With the estimated distances and AoAs, a MU-OAM preprocessing scheme is applied to eliminate the co-mode and inter-mode interferences in the downlink MU-OAM channel. At last, the proposed methods are extended to the downlink MU-OAM-MIMO wireless backhaul system equipped with uniform concentric circular arrays (UCCAs), for which much higher spectral efficiency (SE) and energy efficiency (EE) than traditional MU-MIMO systems can be achieved. Both mathematical analysis and simulation results validate that the proposed scheme can effectively eliminate both interferences of the practical downlink MU-OAM channel and approaches the performance of the ideal MU-OAM channel.
Workability and Well-Being at Work Among Cut-To-Length Forest Machine Operators

This study assessed the situation of Finnish cut-to-length (CTL) machine operators’ work well-being with workability index (WAI), investigated CTL machine operators’ lifestyle habits, and collected operators’ good practices to maintain and promote well-being and vitality at work. A questionnaire was conducted in electronic form, including questions concerning background information, work environment, work organisation, well-being at work and free time, and workability index. Mean WAI among respondents was 42.2 points (max. 49) falling into the rank »good«, while the current workability compared with the lifetime best was 8.2 (range 0–10). WAI was strongly impacted by age (p<0.000), the score declined during ageing, and standard deviation grew. The results were in line with previous WAI studies. Statistic differences were found between youngest age group (age≤25) versus all others. Compared to other studies and occupational groups, CTL machine operators’ WAI was average. Operators revered independent nature of work and forest as a working environment, thus promoting and maintaining well-being at work. Furthermore, breaks during work shift, with or without physical exercise, was recognised to ensure and retain vitality and concentration at work.
Indirect Identification of Perinatal Psychosocial Risks From Natural Language

During the perinatal period, psychosocial health risks, including depression and intimate partner violence, are associated with serious adverse health outcomes for birth parents and children. To appropriately intervene, healthcare professionals must first identify those at risk, yet stigma often prevents people from directly disclosing the information needed to prompt an assessment. In this research we use short diary entries to indirectly elicit information that could indicate psychosocial risks, then examine patterns that emerge in the language of those at risk. We find that diary entries exhibit consistent themes, extracted using topic modeling, and emotional perspective, drawn from dictionary-informed sentiment features. Using these features, we use regularized regression to predict screening measures for depression and psychological aggression by an intimate partner. Journal text entries quantified through topic models and sentiment features show promise for depression prediction, corresponding with self-reported screening measures almost as well as closed-form questions. Text-based features are less useful in predicting intimate partner violence, but topic models generate themes that align with known risk correlates. The indirect features uncovered in this research could aid in the detection and analysis of stigmatized risks.
Enhancement of data transmission using optimized multi-cell approach in 5G backhaul wireless mesh network

The millimeter wave (mmWave) band and its usage has taken an attention in this 5G creation as its implementation can provide ultra-high speed data transmission in wireless network. This is much better than the centimeter wave-band as it has limitations on the bandwidth usage. While considering the 5G networking with the backhaul-topologies, the network and user-equipment performance depends on the selection of serving receiving nodes (RNs) of the user-equipment (UE). Therefore, the algorithms that reduces the complexity of the UE association and the backhaul traffic-routing must be chosen, which thereby maximizes the efficiency of the spectrum and energy of network. The modifications are done to the Multicellular local solution (McLS)approach, which leads to our proposed algorithm that is, improved against the channel information estimation-errors. The optimized multi-cell approach (OMcA) is formed by combining the improved-parameter, the pre-coder, mean square error (MSE) weighted-variable and receive filter. The proposed OMcA is compared with some other existing technique in order to evaluate the performance in terms of sum rate (SR).
Title Enhanced production of recombinant secretory proteins inPichia pastoris by optimizing Kex 2 P 1 ' site

Pichia pastoris is one of the most widely used expression systems for the production of recombinant secretory proteins. Its universal application is, however, somewhat hampered by its unpredictable yields for different heterologous proteins, which is now believed to be caused in part by their varied efficiencies to traffic through the host secretion machinery. The yeast endoprotease Kex2 removes the signal peptides from pre-proteins and releases the mature form of secreted proteins, thus, plays a pivotal role in the yeast secretory pathways. In this study, we found that the yields of many recombinant proteins were greatly influenced by Kex2 P1' site residues and the optimized P1’s amino acid residue could largely determine the final amount of secretory proteins synthesized and secreted. A further improvement of secretory yield was achieved by genomic integration of additional Kex2 copies, which again highlighted the importance of Kex2 cleavage to the production of recombinant secretory proteins in Pichia yeast. Citation: Yang S, Kuang Y, Li H, Liu Y, Hui X, et al. (2013) Enhanced Production of Recombinant Secretory Proteins in Pichia pastoris by Optimizing Kex2 P1’ site. PLoS ONE 8(9): e75347. doi:10.1371/journal.pone. 0075347 Editor: Qingyang Huang, Central China Normal University, China Received May 24, 2013; Accepted August 12, 2013; Published September 19, 2013 Copyright: © 2013 Yang et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Funding: This work was supported in part by funds from the National Basic Research Program of China (2011CB504004 and 2010CB945500), the Strategic Exploration Grant of Stem Cells from the Chinese Academy of Sciences (XDA01020303) and Science and Technology Planning Project of Guangdong Province (2011A060901019). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Competing interests: The authors have declared that no competing interests exist. * E-mail: dhwu2001@gmail.com
Potentials of synthesised Lessertia montana zinc oxide nanoparticles on free radicals-mediated oxidative stress and carbohydrate-hydrolysing enzymes

The study evaluated the effects of green absorbed zinc oxide nanostructures on oxidative stress-mediated free radicals and carbohydrate-hydrolysing enzymes. The synthesised Lessertia montana zinc oxide nanoparticles were characterised using different spectroscopic, microscopic, and diffraction techniques. The activity of L. montana ZnONPs against 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2′-azino-bis(3-ethyl-benzothiazoline-6-sulfonic acid (ABTS), metal chelating assay, alpha-amylase and alphaglucosidase were determined using standard methods. L. montana ZnONPs were stable nanoparticles (NPs), appeared cubical (predominantly) in shape, and in nanometre range sizes. The synthesised NPs are very active (p < 0.05) against DPPH and alpha-glucosidase (0.120 and 0.037 g/L, respectively) when compared with other samples and controls, quercetin (0.349 g/L) and acarbose (0.065 g/L). However, their interaction with quercetin revealed a good ABTS (0.093 g/L) scavenging and an excellent metal chelating (0.027 g/L) effect compared to other samples. The mode of inhibition of alpha-amylase and alpha-glucosidase enzymes by L. montana ZnONPs was competitive and non-competitive, respectively. The study outcomes revealed that the synthesised ZnONPs possessed the potential to mitigate oxidative stress and diabetes in vitro.
STANDARDIZATION OF SURFACE STERILIZATION PROTOCOL OF FIELD GROWN Stevia rebaudiana PRIOR TO IN VITRO CLONAL PROPAGATION

The high demand of Stevia rebaudiana , commonly known as Stevia encourages people for commercial-scale cultivation. In vitro clonal propagation is a potential alternative for conventional propagation due to its advantages. However, microbial contamination is a constant problem for in vitro clonal propagation of field grown plant. Therefore, the aim of this study was to establish an effective surface sterilization protocol for Stevia prior to in vitro propagation. Two disinfecting agents, NaOCl and HgCl 2 with different concentrations and various exposure times were tested for surface sterilization of shoot tips and nodal explants. Results show that treatment of explants with NaOCl was more effective compared to HgCl 2 and 5% NaOCl for 10 minutes with 0.2% carbendazim (fungicide) pre-treatment showed least contamination and highest survival rate. Fungal contamination was observed to be a main problem in this study and it occurred within 2-3 days of inoculation, leading to the death of the explants.
Comparison of Patients with Hospital-Recorded Nephrotic Syndrome and Patients with Nephrotic Proteinuria and Hypoalbuminemia: A Nationwide Study in Denmark

Visual Abstract Key Points Only a minority of patients with the biochemical features of nephrotic syndrome (NS) receive hospital diagnoses specific to NS. Patients identified with hospital-recorded NS are considerably different from those with biochemical features of NS. Laboratory databases should complement hospital databases to fully elucidate the burden of NS and the prognosis of patients with NS. Background Registry-based studies of nephrotic syndrome (NS) may only include a subset of patients with biochemical features of NS. To address this, we compared patients with laboratory-recorded nephrotic proteinuria and hypoalbuminemia to patients with hospital-recorded NS. Methods We identified adult patients with first-time hospital-recorded NS (inpatients, outpatients, or emergency-room visitors) in the Danish National Patient Registry and compared them with adults with first-time recorded nephrotic proteinuria and hypoalbuminemia in Danish laboratory databases during 2004–2018, defining the date of admission or laboratory findings as the index date. We characterized these cohorts by demographics, comorbidity, medication use, and laboratory and histopathologic findings. Results We identified 1139 patients with hospital-recorded NS and 5268 patients with nephrotic proteinuria and hypoalbuminemia; of these, 760 patients were identified in both cohorts. Within 1 year of the first record of nephrotic proteinuria and hypoalbuminemia, 18% had recorded hospital diagnoses indicating the presence of NS, and 87% had diagnoses reflecting any kind of nephropathy. Among patients identified with nephrotic proteinuria and hypoalbuminemia, their most recent eGFR was substantially lower (median of 35 versus 61 ml/min per 1.73 m2), fewer underwent kidney biopsies around the index date (34% versus 61%), and the prevalence of thromboembolic disease (25% versus 17%) and diabetes (39% versus 18%) was higher when compared with patients with hospital-recorded NS. Conclusions Patients with nephrotic proteinuria and hypoalbuminemia are five-fold more common than patients with hospital-recorded NS, and they have a lower eGFR and more comorbidities. Selective and incomplete recording of NS may be an important issue when designing and interpreting studies of risks and prognosis of NS.
Research on NDT-based Positioning for Autonomous Driving

Autonomous driving technology is one of the currently popular technologies, while positioning is the basic problem of autonomous navigation of autonomous vehicles. GPS is widely used as a relatively mature solution in the outdoor open road environment. However, GPS signals will be greatly affected in a complex environment with obstruction and electromagnetic interference, even signal loss may occur if serious, which has a great impact on the accuracy, stability and reliability of positioning. For the time being, L4 and most L3 autonomous driving modules still provide registration and positioning based on the high-precision map constructed. Based on this, this paper elaborates on the reconstruction of the experimental scene environment, using the SLAM (simultaneous localization and mapping) method to construct a highprecision point cloud map. On the constructed prior map, the 3D laser point cloud NDT matching method is used for real-time positioning, which is tested and verified on the “JAC Electric Vehicle” platform. The experimental results show that this algorithm has high positioning accuracy and its real-time performance meets the requirements, which can replace GPS signals to complete the positioning of autonomous vehicles when there is no GPS signal or the GPS signal is weak, and provide positioning accuracy meeting the requirements.
MOBBING PERCEPTION OF TEACHERS AND ACADEMICIANS IN TURKEY: A DESCRIPTIVE ANALYSIS AT PUBLIC SCHOOLS AND UNIVERSITIES

The aim of this study is about determining the mobbing perceptions of teachers and academicians in Turkey by a survey applied all around the country. The results were acquired from the questionnaire forms that sent teachers and academicians who have been working at public schools and universities in Turkey. The sample consisted of 1477 participants. Viewed from a wide perspective, it was aimed to provide information about exposing types of mobbing, pieces of evidence about differences between genders and occupations by determining mobbing perception of teachers and academicians. Therefore, public and organizational authorities in schools and universities can decide what they must do for preventing mobbing and, how they must generate or form policies and political decisions about preventing mobbing by this information. There was some information acquired through the results of this study. The first information acquired is perception differences of occupations and genders about mobbing in the whole research group. The second one is perception differences for genders about mobbing in same occupational group and finally perception differences of occupations about mobbing in a same-gender group.
Phase-Phase and Phase-Code Methods Modification for Precise Detecting and Predicting the GPS Cycle Slip Error

Abstract There are three well-established detecting methods for cycle slip error, which are: Doppler measurement method, Phase-Code differencing method, and Phase-Phase Differencing Method. The first method depends on the comparison between observables and the fact that Doppler measurements are immune to cycle slip error. This method is considered as the most precise method for cycle slip detecting, because it succeed in detecting and predicting the smallest cycle slip size (1 cycle) in case the local oscillator has low bias. The second method depends on the comparison between observables (phase and code) and the code measurements are immune to the cycle slip error. But this method can’t detect or predict cycle slip size smaller than 10 cycles, because the code measurements have high noise. The third method depends on the comparison between observables (phase 1 and phase 2) and the phases measurements that have low noise. But this method can’t detect or predict cycle slip size smaller than 5 cycles, because the ionospheric change might have a high variation. For enhancing the precision of the last two methods in detecting the smallest cycle slip which size reaches 1 cycle, a new algorithm was developed in this research to determine the change in the ionospheric values and the code bias from epoch to epoch. That is done by solving all observables equations by least square technique. This modification on these methods succeed in detecting and predicting cycle slips of size of 1 cycle.
Stochastic electron acceleration in the TeV supernova remnant RX J1713.7−3946: the high-energy cut-off

In the leptonic scenario for TeV emission from a few well-observed shell-type TeV supernova remnants (STTSNRs), very weak magnetic fields are inferred. If fast-mode waves are produced efficiently in the shock downstream, we show that they are viable agents for acceleration of relativistic electrons inferred from the observed spectra even in the subsonic phase, in spite that these waves are subject to strong damping by thermal background ions at small dissipation scales. Strong collisionless non-relativistic .
Propagation of macadamia (Macadamia integrifolia Maiden & Betche) by cuttings

Macadamia trees require a long period for flowering when propagated by seeds. To anticipate the yield, maintain cultivar characteristics, and increase the homogeneity of nut quality, it is essential to establish orchards with grafted trees. Although semi-hardwood cutting propagation tests have been performed in Brazil, no method has been shown to be appropriate at a large scale due to the difficulties in implementation of techniques or the high cost. Establishing an effective and affordable protocol may provide great improvement to this productive chain since it will meet the demand of nurseries and stimulate the expansion of orchards. The aim of this study was to develop a protocol for macadamia semi-hardwood cutting propagation. Six cultivars (HAES 344, HAES 816, HAES 660, IAC 4-12B, IAC 9-20, and IAC 4-20) were evaluated and selected because of their ample cultivation in Brazil. The propagation material was collected for four months (October and November 2018, and February and March 2019). The semi-hardwood cuttings were also soaked in indole butyric acid (IBA) at three different concentrations (0, 5, or 10 g L-1) and in the commercial product Clonex®. The experiment was arranged in a two-way completely randomized design with four replicates and data were analyzed by R software. The cultivar IAC 4-12B showed the highest index for root development (37.0%). The treatments did not show significant differences between IBA doses and Clonex® for root development (IBA 10 g L-1 - 31.5%, Clonex® - 29.4%, and IBA 5 g L-1 - 27.4%). November was the best cutting season for root development of semi-hardwood cuttings (10.0%).
Frequency-dependent gain based damping control of SSO in wind farms connected to MMC-HVDC

The sub-synchronous oscillation has been observed in a number of wind turbine connecting to voltage source converter (VSC) based high voltage direct current (HVDC) systems, causing severe consequences and affecting the stability of the system operation significantly. The fundamental theory of it can be extremely sophisticated depending on the complexity of system configuration. The conventional control approach may require a large amount of calculation to identify the most effective parameter settings. When the system contains a series of converters, the effectiveness of the conventional control approach can be insufficient due to the performance disturbance of the converters. Therefore, this paper proposed a frequency dependent controller to mitigate the sub-synchronous oscillation without affecting the dynamic performance of the converter. At first, the parameter sensitivity constant is proposed to quantify the effects of the control parameters contributing the oscillation. And then, a frequency dependent controller is implemented inside the wind turbine and VSC controllers depending on the parameter sensitivity constant. At last, the simulation results have shown that the proposed mitigation approach can effectively eliminate the sub-synchronous oscillation of the system thus improving the overall performance.
A risk scoring system for seafood supply chain breaches and examination of freshwater fish imported to Australia

Legislative changes have altered the way imported edible seafood is inspected in Australia. Greater onus of responsibility has been placed on exporting countries to provide documentary evidence of adherence to internally recognized food safety standards. According to global trade agreements, any additional safety tests applied to freshwater fish imported into Australia must be justified. Therefore, the aim of this study was to develop a risk scoring method to provide justification for identifying countries as ‘Freshwater fish high risk’ and to examine the seafood they export to Australia for seafood supply chain breaches. Scoring was conducted using six predictor variables, identified in the literature as important contributors to seafood supply chain breaches, to achieve the outcome variable, Country considered ‘Freshwater fish high risk’. Sixty-seven fish fillets (9.55 kg) of the same species were examined from the third highest scoring country (Country 20) and 562 (5.6 kg) whole fish from the sixth highest scoring country (Country 22). Country 20 had supply chain breaches of 28 macroscopic yellow cysts in one fillet. Two hundred and thirteen parasites and other supply chain breaches were identified in fish from Country 22, including retained liver (91 per cent), visible mud (11 per cent), a variety of debris (16 per cent) and, depending on the commodity code, these fish were imported to Australia under full intestine (90 per cent), retained gills (89 per cent), and partial intestine (9 per cent). Three serious physical hazards were recovered from the edible portion of three ‘consumer-ready’ fish and snails of Genus Lymnaea and Indoplanorbis were recovered from gill mud also from ‘consumer-ready’ fish. The study showed variable results from the scoring system and vast differences in seafood supply chain breaches between the third and sixth highest scoring countries.
Melting of charmonium in a magnetic field from an effective AdS/QCD model

We study the influence of a background magnetic field on the melting of the $J/\ensuremath{\psi}$ vector meson by introducing a Born-Infeld modification of the soft-wall model. Out of the three polarizations of the massive vector meson, we find that the longitudinal one (parallel to the applied magnetic field) melts only at an even higher temperature than the deconfinement temperature, whereas the two transverse polarizations melt at a lower temperature than in the absence of a magnetic field. We also conduct a preliminary investigation of the effect of the magnetic field on the heavy quark diffusion coefficient, showing an increased diffusion constant for the longitudinal polarization with respect to the transverse polarizations.