bluuebunny/crossref_metadata_2025 huggingface dataset:
Prediction Of Chlorophyll-a As an Index of Harmful Algal Blooms Using Machine Learning Models
Authors: Busari Ibrahim , Sahoo Debabrata , Harmel R. Daren , Haggard Brian E.
Published: April 2024

Highlights

The monitoring of HABs can be improved using ML models for chlorophyll-a prediction.

ML model selection for HABs monitoring depends on target objectives.

Random forest model predicts chlorophyll-a better when the temporal dimension is not considered.

The LSTM model is essential for making time-dependent chlorophyll-a predictions for HABs monitoring.

Abstract. The complex dynamics of freshwater harmful algal blooms (HABs) necessitate proactive monitoring approaches to mitigate their impacts. The rapid breakthrough in computing prowess and statistical advances is triggering the development of data-driven techniques such as machine learning (ML) models, which have been shown in different fields to be instrumental in finding patterns for explaining relationships in observed data. This study assesses the ability of ML models for HABs monitoring in a lake using chlorophyll-a concentration as the index. The selected models for this study were regression tree, random forest (RF), multilayer perceptron (MLP), support vector regression (SVR), long short-term memory (LSTM), and gated recurrent unit (GRU) models, with the last two models able to consider the temporal sequence of obtained water quality datasets. The results showed that the RF model with R2, mean absolute error (MAE), and root mean square error (RMSE) of 0.87 µgL-1, 0.97 µgL-1, and 3.53 µgL-1, respectively, outperformed the SVR, MLP, and regression tree models. LSTM model with MAE and RMSE of 2.39 µgL-1 and 3.29 µgL-1, respectively, predicted temporal dynamics of chlorophyll-a better than GRU, although with more runtime, and showed the potential for developing real-time HAB monitoring and early warning systems. The findings reveal the robustness of the chosen ML models, thereby shedding light on crucial factors that necessitate careful deliberation by researchers and policymakers in determining the most suitable approaches for monitoring HABs. Keywords: Cyanobacteria, Early warning systems, Freshwater, HABs, Machine learning models.
Power, Painting, and Poetry: Mixed-Race Ekphrasis in Natasha Trethewey's Thrall
Authors: Knaus Juliann
Published: April 2024

Abstract: This article contributes to scholarly conversations about ekphrasis by combining the field of mixed-race studies with ekphrastic concerns in a term I have coined "mixed-race ekphrasis." The ekphrastic strategy employed by Natasha Trethewey in her poetry might most aptly be termed mixed-race ekphrasis, and thus I will unpack this term through close readings of her book of poetry Thrall (2012). In particular, Trethewey's renderings of the historical art form of Mexican casta paintings connect issues of mixed-race identity across the visual and the textual and encourage links between nationalized and historical conceptions of race. Despite being produced hundreds of years ago, these paintings still reflect the social categorization and hegemonic power in current race relations and notions of white supremacy. I argue that Trethewey uses mixed-race ekphrasis in her casta painting poems to reclaim the agency of (self-)representation of mixed-race people by (re)negotiating race-related power relationships and critically addressing mixed-race classifications.
On Writing “Kayfabe”
Authors: Palmquist Lara
Published: April 2024

Abstract: Author Lara Palmquist writes about the history of their piece “Kayfabe” and the inhibitions, hesitations, obstacles, and anxieties that came with it. They discuss the development of the concepts in the story as well as their craft choices.
One Thing at a Time: An Interview with Dr. Stephanie Vanderslice
Authors: Mariano Allie
Published: April 2024

Abstract: Allie Mariano interviews writer, professor, and pedagogy expert Dr. Stephanie Vanderslice of UCA. After Mariano tells of how they became acquainted, Dr. Vanderslice answers questions about the teaching and community of creative writing, the illustrious MFA program and its impact on students and instructors and their works, their preferred teaching styles, inspirations and experiences in the creative writing field, and what’s next for her.
Rereading Heidegger with Ser and Estar
Authors: Corcoran Lucas Rossi
Published: April 2024

Abstract: Despite the impressive influence that Martin Heidegger has over 20th-century thought, there has been little scholarship on how Sein und Zeit has influenced Latin American philosophy. I correct for this critical oversight by investigating how Rodolfo Kusch, Álvaro Vieira Pinto, and Paulo Freire, respectively, use the words ser and estar to critique and creatively reappropriate Heidegger's Sein lexicon in Sein und Zeit .
THz-TDS with gigahertz Yb-based dual-comb lasers: noise analysis and mitigation strategies
Authors: Willenberg Benjamin , Phillips Christopher R. , Pupeikis Justinas , Camenzind Sandro L. , Liebermeister Lars , Kohlhass Robert B. , Globisch Björn , Keller Ursula
Published: April 2024

We investigate terahertz time-domain spectroscopy using a low-noise dual-frequency-comb laser based on a single spatially multiplexed laser cavity. The laser cavity includes a reflective biprism, which enables generation of a pair of modelocked output pulse trains with slightly different repetition rates and highly correlated noise characteristics. These two pulse trains are used to generate the THz waves and detect them by equivalent time sampling. The laser is based on Yb:CALGO, operates at a nominal repetition rate of 1.18 GHz, and produces 110 mW per comb with 77 fs pulses around 1057 nm. We perform THz measurements with Fe-doped photoconductive antennas, operating these devices with gigahertz 1 µm lasers for the first time, to our knowledge, and obtain THz signal currents approximately as strong as those from reference measurements at 1.55 µm and 80 MHz. We investigate the influence of the laser’s timing noise properties on THz measurements, showing that the laser’s timing jitter is quantitatively explained by power-dependent shifts in center wavelength. We demonstrate reduction in noise by simple stabilization of the pump power and show up to 20 dB suppression in noise by the combination of shared pumping and shared cavity architecture. The laser’s ultra-low-noise properties enable averaging of the THz waveform for repetition rate differences from 1 kHz to 22 kHz, resulting in a dynamic range of 55 dB when operating at 1 kHz and averaging for 2 s. We show that the obtained dynamic range is competitive and can be well explained by accounting for the measured optical delay range, integration time, as well as the measurement bandwidth dependence of the noise from transimpedance amplification. These results will help enable a new approach to high-resolution THz-TDS enabled by low-noise gigahertz dual-comb lasers.
Repairing the in situ hybridization missing data in the hippocampus region by using a 3D residual U-Net model
Authors: Wan Tong , Fu Changping , Peng Jiinbo , Lu Jinling , Li Pengcheng , Zhuo JunJie
Published: April 2024

The hippocampus is a critical brain region. Transcriptome data provides valuable insights into the structure and function of the hippocampus at the gene level. However, transcriptome data is often incomplete. To address this issue, we use the convolutional neural network model to repair the missing voxels in the hippocampus region, based on Allen institute coronal slices in situ hybridization (ISH) dataset. Moreover, we analyze the gene expression correlation between coronal and sagittal dataset in the hippocampus region. The results demonstrated that the trend of gene expression correlation between the coronal and sagittal datasets remained consistent following the repair of missing data in the coronal ISH dataset. In the last, we use repaired ISH dataset to identify novel genes specific to hippocampal subregions. Our findings demonstrate the accuracy and effectiveness of using deep learning method to repair ISH missing data. After being repaired, ISH has the potential to improve our comprehension of the hippocampus's structure and function.
Vision-based algorithm for online TIG welding deviation detection of stainless steel welded pipes
Authors: Hou Huaishu , Wang Tong , Li Jinhao , Zhang Yong , Tang Chenhuai
Published: April 2024

Tungsten inert gas (TIG) welding is the main welding process in the production of stainless steel welded pipe. According to the morphological characteristics of the welding molten pool image during the TIG welding process of stainless steel welded pipes, the exact position of the tungsten needle tip is calculated using image moments. Extract the weld region in the contour of the molten pool, interpolate the contour curve based on the cubic B-spline curve interpolation method, utilize the characteristics of the S-G filter, remove the interference coordinates in the contour curve through the detrending of the contour curve, extract the weld feature points, and realize the accurate identification of weld seams. The experimental results show that the method can accurately calculate the welding deviation in the welding process.
Routing light with different wavevectors using synthetic dimensions
Authors: Lyu Xin , Bai Kai , Xiao Meng
Published: April 2024

Synthetic dimensions have drawn intense recent attention in investigating higher-dimensional topological physics and offering additional degrees of freedom for manipulating light. It has been demonstrated that synthetic dimensions can help to concentrate light with different frequencies at different locations. Here, we show that synthetic dimensions can also route light from different incident directions. Our system consists of an interface formed by two different photonic crystals. A synthetic dimension ξ is introduced by shifting the termination position of the photonic crystal on the right-hand side of the interface. We identify a correspondence between ξ and the interface state such that light incident from a specific direction can be collected. Thus, routing incident light from different directions is achieved by designing an interface with a proper distribution of ξ. Traditionally, this goal is achieved with a standard 4f optical system using a convex lens, and our approach offers the possibility for such a capability within a few lattice sites of photonic crystals. Such an approach reduces the size of the system, making it easier for integration. Our work provides, to our knowledge, a new direction for routing light with different momentums and possibly contributes to applications such as lidar.
Peregrine soliton emits dispersive waves within graded-index multimode fibers without higher-order dispersion
Authors: Shuai Yuelei , Deng Zhixiang , Li Haozhe , Gao Yanxia , Fan Danyuan , Zhang Lifu
Published: April 2024

We investigate the propagation dynamics of the Peregrine soliton, a significant prototype of rogue waves, within the graded-index multimode fibers, in the absence of higher-order dispersion. The Peregrine soliton keeps the approximate evolution trend when propagating within the graded-index multimode fibers to replace the single-mode fibers when preserving the equivalent nonlinear effect. In addition, a series of dispersive waves (also called resonant radiation) can be emitted by the Peregrine soliton, perturbated by the periodic beam oscillation caused by the spatial self-imaging effect within the graded-index multimode fibers. To be more exact, the location of the multiple resonant frequencies can be predicted using the modified quasi-phase-matching conditions, which are verified by the numerically calculated results. We can also manipulate the locations of spectral sidebands and the peak power of dispersive waves by changing the self-imaging parameter of the graded-index multimode fibers. Our findings can provide a deeper comprehension of the propagation characteristic of the Peregrine soliton within the graded-index multimode fibers and provide valuable instruction for further rich nonlinear experiments.
Depth-resolved speckle correlation imaging using the axial memory effect
Authors: Aarav Shaurya , Fleischer Jason W.
Published: April 2024

Speckle correlation imaging (SCI) recovers the angular size of a 2D object hidden behind a scatterer, but it fails to recover its depth. Here, we extend SCI to obtain object depth by capturing speckled images at two detector distances and exploiting the scaling properties of the axial memory effect. This noninvasive method does not require access to the object side of the scatterer, e.g. for pre-calibration or addition of a guide star, and will be useful in any scenario where SCI is applicable, such as biological imaging or seeing through fog.
High-sensitivity strain sensor based on an asymmetric tapered air microbubble Fabry-Pérot interferometer with an ultrathin wall
Authors: Lv Jingwei , Li Wei , Wang Jianxin , Lu Xili , Li Qiao , Ren Yanru , Yu Ying , Liu Qiang , Chu Paul K. , Liu Chao
Published: April 2024

A Fabry-Pérot interferometer (FPI) with an asymmetric tapered structure and air microbubble with an ultrathin wall is designed for high-sensitivity strain measurement. The sensor contains an air microbubble formed by two single-mode fibers (SMF) prepared by fusion splicer arc discharge, and a taper is applied to one side of the air microbubble with a wall thickness of 3.6 µm. In this unique asymmetric structure, the microbubble is more easily deformed under stress, and the strain sensitivity of the sensor is up to 15.89 pm/µɛ as evidenced by experiments.The temperature sensitivity and cross-sensitivity of the sensor are 1.09 pm/°C and 0.069 µɛ/°C in the temperature range of 25-200°C, respectively, thus reducing the measurement error arising from temperature variations. The sensor has notable virtues such as high strain sensitivity, low-temperature sensitivity, low-temperature cross-sensitivity, simple and safe process preparation, and low cost. Experiments confirm that the sensor has good stability and repeatability, and it has high commercial potential, especially strain measurements in complex environments.
Near-field optomechanical transduction enhanced by Raman gain
Authors: Sakuma Ryoko , Asano Motoki , Yamaguchi Hiroshi , Okamoto Hajime
Published: April 2024

Raman-gain-enhanced near-field optomechanical transduction between a movable optical cavity and SiN-membrane resonator is demonstrated. The Raman gain compensates for the intrinsic loss of the cavity and amplifies the optomechanical transduction, through which the membrane vibration is sensed using a high-Q whispering-gallery-mode optical cavity evanescently. The optical Q of the cavity resonance is improved with respect to the optical pump power, which results in an increase in the optomechanically transduced vibration signals of the mechanical resonator. Our near-field optomechanical coupling approach with optical gain realizes highly sensitive displacement measurement in nano- and micro-mechanical resonators consisting of arbitrary materials and structures.
Observation and all-optical manipulation of replica symmetry breaking dynamics in a multi-Stokes-involved Brillouin random fiber laser photonic system
Authors: Zhong Zepeng , Zhang Liang , Guo Xu , Zhang Jilin , Zhu Mengshi , Pang Fufei , Wang Tingyun
Published: April 2024

In this paper, we propose and demonstrate an all-optical control of RSB transition in a multi-wavelength Brillouin random fiber laser (MWBRFL). Multi-order Stokes light components can be subsequently generated by increasing the power of the Erbium-doped fiber amplifier (EDFA) inside the MWBRFL, providing additional disorder as well as multiple Stokes-involved interplay. It essentially allows diversified laser mode landscapes with adjustable average mode lifetime and random mode density of the 1st order Stokes, which benefits the switching between replica symmetry breaking (RSB) and replica symmetry (RS) states in an optically controlled manner. Results show that the average mode lifetime of the 1st order Stokes component gradually decreases from 250.0 ms to 1.2 ms as high orders from the 2nd to the 5th of Stokes components are activated. Meanwhile, the order parameter
q
of the 1st order Stokes random lasing emission presents distinct statistical distributions within the selective sub-window under various EDFA optical powers. Consequently, all-optical dynamical control of the 1st Stokes random laser mode landscapes with adjustable average mode lifetime turns out to be attainable, facilitating the RSB transition under an appropriate observation time window. These findings open a new avenue for exploring the underlying physical mechanisms behind the occurrence of the RSB phenomenon in photonic complex systems.
Alamouti-coded DSP algorithm with a simplified PTBC decoder for next-generation optical access networks
Authors: Oh Jung-Yeol , Moon Sang-Rok , Chang Sun-Hyok , Kang Hun-Sik
Published: April 2024

The use of Alamouti-coded polarization-time block code (A-PTBC) in combination with a simple single polarization coherent receiver enables phase-diverse coherent detection without any optical polarization tracking. However, applying this technique to high-speed single-carrier systems is not straightforward, as it requires specialized digital signal processing (DSP) algorithms for data recovery, which increases DSP complexity. In this paper, we propose a novel Alamouti-coded coherent algorithm designed to significantly reduce the complexity of the receiver DSP for data recovery. The proposed algorithm achieves the comparable performance to the conventional algorithm but requires only half the number of necessary equalizers for data recovery. We validate its performance through simulations and also experimentally demonstrate a 100 Gb/s 16-quadrature amplitude modulation (QAM) single-carrier coherent system employed the single-polarization coherent receiver over 20 km of standard single-mode fiber (SMF). Through the performance verification, the coherent system with the proposed algorithm exhibits performance comparable to that of the conventional Alamouti-coded coherent system and achieves a power budget of 34 dB when the transmit launch power is set to 7 dBm at a Bit Error Rate (BER) of 1 × 10−2 for 0-20 km fiber transmission.
Compact mode converters in thin-film lithium niobate integrated platforms
Authors: Zhang Jingjing , Qiu Pengfei , He Runyu , Song Xiaoxian , Dai Zijie , Liu Yang , Pan Dong , Yang Junbo , Guo Kai
Published: April 2024

Mode converters, crucial elements within photonic integrated circuits (PICs) designed for multimode optical transmission and switching systems, present a challenge due to their bulky structures in thin-film lithium niobate (TFLN) integrated platforms, which are incompatible with the compact and efficient nature desired for dense PICs. In this work, we propose TE1-TE0, TE2-TE0, and TE3-TE0 mode converters in shallowly etched TFLN, within small footprints. The experimental results show that the insertion loss is 0.4 dB, 0.6 dB, and 0.5 dB for the compact TE1-TE0, TE2-TE0, and TE3-TE0 mode converters, respectively, and these devices can be operated within a wide 1 dB bandwidth (BW) over 100 nm. This work facilitates the development of low-loss, broadband, and compact monolithically integrated photonic devices for future multimode communication networks in TFLN integrated platforms.
Adaptive cascade calibrated multi-plane phase retrieval
Authors: Wang Jiabao , Wang Jun , Chen Ni
Published: April 2024

By automatically detecting feature points in the refocus sample space and continuously calculating the transformation matrix of neighbouring planes, we introduce a novel Adaptive Cascade Calibrated (ACC) multi-plane phase retrieval method to address the misalignment issue.
Mitofusin-mediated contacts between mitochondria and peroxisomes regulate mitochondrial fusion
Authors: Alsayyah Cynthia , Singh Manish K. , Morcillo-Parra Maria Angeles , Cavellini Laetitia , Shai Nadav , Schmitt Christine , Schuldiner Maya , Zalckvar Einat , Mallet Adeline , Belgareh-Touzé Naïma , Zimmer Christophe , Cohen Mickaël M.
Published: April 2024

Mitofusins are large GTPases that trigger fusion of mitochondrial outer membranes. Similarly to the human mitofusin Mfn2, which also tethers mitochondria to the endoplasmic reticulum (ER), the yeast mitofusin Fzo1 stimulates contacts between Peroxisomes and Mitochondria when overexpressed. Yet, the physiological significance and function of these “PerMit” contacts remain unknown. Here, we demonstrate that Fzo1 naturally localizes to peroxisomes and promotes PerMit contacts in physiological conditions. These contacts are regulated through co-modulation of Fzo1 levels by the ubiquitin–proteasome system (UPS) and by the desaturation status of fatty acids (FAs). Contacts decrease under low FA desaturation but reach a maximum during high FA desaturation. High-throughput genetic screening combined with high-resolution cellular imaging reveal that Fzo1-mediated PerMit contacts favor the transit of peroxisomal citrate into mitochondria. In turn, citrate enters the TCA cycle to stimulate the mitochondrial membrane potential and maintain efficient mitochondrial fusion upon high FA desaturation. These findings thus unravel a mechanism by which inter-organelle contacts safeguard mitochondrial fusion.
Combined multiplex panel test results are a poor estimate of disease prevalence without adjustment for test error
Authors: Challen Robert , Chatzilena Anastasia , Qian George , Oben Glenda , Kwiatkowska Rachel , Hyams Catherine , Finn Adam , Tsaneva-Atanasova Krasimira , Danon Leon
Published: April 2024

Multiplex panel tests identify many individual pathogens at once, using a set of component tests. In some panels the number of components can be large. If the panel is detecting causative pathogens for a single syndrome or disease then we might estimate the burden of that disease by combining the results of the panel, for example determining the prevalence of pneumococcal pneumonia as caused by many individual pneumococcal serotypes. When we are dealing with multiplex test panels with many components, test error in the individual components of a panel, even when present at very low levels, can cause significant overall error. Uncertainty in the sensitivity and specificity of the individual tests, and statistical fluctuations in the numbers of false positives and false negatives, will cause large uncertainty in the combined estimates of disease prevalence. In many cases this can be a source of significant bias. In this paper we develop a mathematical framework to characterise this issue, we determine expressions for the sensitivity and specificity of panel tests. In this we identify a counter-intuitive relationship between panel test sensitivity and disease prevalence that means panel tests become more sensitive as prevalence increases. We present novel statistical methods that adjust for bias and quantify uncertainty in prevalence estimates from panel tests, and use simulations to test these methods. As multiplex testing becomes more commonly used for screening in routine clinical practice, accumulation of test error due to the combination of large numbers of test results needs to be identified and corrected for.
Mendelian randomization study of whole blood viscosity and cardiovascular diseases
Authors: Bhak Youngjune , Tenesa Albert
Published: April 2024

Aims

Association between whole blood viscosity (WBV) and an increased risk of cardiovascular disease (CVD) has been reported. However, the causal relationship between WBV and CVD remains not thoroughly investigated. The aim of this study was to investigate the causal relation between WBV and CVD.

Methods

Two-sample Mendelian randomization (MR) was employed, with inverse variance weighting (IVW) as the primary method, to investigate the casual relationship between WBV and CVD. The calculated WBV and medical records of 378,210 individuals participating in the UK Biobank study were divided into halves and analyzed.

Results

The means of calculated WBVs were 16.9 (standard deviation: 0.8) and 55.1 (standard deviation: 17.2) for high shear rate (HSR) and low shear rate (LSR), respectively. 37,859 (10.0%) major cardiovascular events (MACE) consisted of 23,894 (6.3%) cases of myocardial infarction (MI), 9,245 (2.4%) cases of ischemic stroke, 10,377 (2.7%) cases of revascularization, and 5,703 (1.5%) cases of coronary heart disease-related death. In the MR analysis, no evidence was found indicating a causal effect of WBV on MACE (IVW p-value for HSR = 0.81, IVW p-value for LSR = 0.47), MI (0.92, 0.83), ischemic stroke (0.52, 0.74), revascularization (0.71, 0.54), and coronary heart disease-related death (0.83, 0.70). The lack of sufficient evidence for causality persisted in other MR methods, including weighted median and MR-egger.

Conclusions

The Mendelian randomization analysis conducted in this study does not support a causal relationship between calculated WBV and CVD.
Mental health status in healthcare workers during COVID-19 pandemic: An online questionnaire study in the southwest Iran
Authors: Sarvandian Sara , Hosseinpour Shima , Hoseinynejad Khojasteh , Davasaz Irani Reza , Pakseresht Sirus , Rahimi Zahra
Published: April 2024

Objectives

This study aimed to evaluate Mental Health Status, such as stress, anxiety, or depression symptoms, during the Covid-19 pandemic in healthcare workers at Ahvaz Jundishapur University of Medical Sciences.

Methods

This study is an online cross-sectional study conducted on healthcare professionals at Ahvaz Jundishapur University of Medical Science from November 25, 2020, to March 30 2021. PHQ9 and Kessler collected outcome variables of depression, anxiety, and psychological distress questionnaires.

Results

In total, 2552 healthcare workers in 24 hospitals and 212 Comprehensive health centers were enrolled in this study. The mean age of participants was 37.94 ± 8.07 years, and 25.3% were male. There was a significant difference between the mean Kessler and PHQ9 Scale scores on males and females (P< 0.001). Also, the results showed a significant difference between depression, anxiety, and stress and working in the intensive care unit. According to the result of the Kessler scale, 27% of participants had moderate to severe. Most respondents (65.5%) in all professions had moderate to severe mental distress scores according to the Kessler scale. The logistic regression model results illustrated the relationship between depression and anxiety with gender, workplace, support from families, and collogue job satisfaction, and feeling the stress of media coverage of COVID-19 were statistically significant (P< 0.05).

Conclusions

The present study revealed that medical and health workers suffer from mental health problems. In this study, up to one-fifth of medical staff had stress, anxiety, or depression symptoms, and more than half had psychological distress. Low educational level, lack of family support, lack of colleague’s support, and being a female were the significant risk factors for stress, anxiety, and psychological distress in medical staff.
Sustainable youth employment quality management: The impact of robotization in China
Authors: Liang Fucheng , Liu Yi
Published: April 2024

Robotization has caused widespread concern about job losses, but few scholars have paid attention to changes in employment quality. This study provides supplementary evidences on the impact of robotization on youth employment quality and compares the effectiveness of various measures. Using data about individual employment and robot usage in China, this study finds that robotization reduces youth employment quality, especially for males and the middle-educated, aged 26 to 35, and in regions with insufficient workers. The substitution effect, skill preparation effect, and productivity effect play important roles in this process. Besides the common strategy of education, the mitigating capabilities of skill training has been demonstrated, but self-entrepreneurship has not. This study suggests that the exploration of various youth self-development measures, such as skill training, is warranted to improve employment quality.
Risk and protective factors for self-harm and suicide behaviours among serving and ex-serving personnel of the UK Armed Forces, Canadian Armed Forces, Australian Defence Force and New Zealand Defence Force: A systematic review
Authors: Williamson Charlotte , Croak Bethany , Simms Amos , Fear Nicola T. , Sharp Marie-Louise , Stevelink Sharon A. M.
Published: April 2024

Background

Self-harm and suicide behaviours are a major public health concern. Several factors are associated with these behaviours among military communities. Identifying these factors may have important implications for policy and clinical services. The aim of this review was to identify the risk and protective factors associated with self-harm and suicide behaviours among serving and ex-serving personnel of the United Kingdom Armed Forces, Canadian Armed Forces, Australian Defence Force and New Zealand Defence Force.

Methods

A systematic search of seven online databases (PubMed, Web of Science, Embase, Global Health, PsycINFO, PTSDpubs and CINAHL) was conducted alongside cross-referencing, in October 2022. Following an a priori PROSPERO approved protocol (CRD42022348867), papers were independently screened and assessed for quality. Data were synthesised using a narrative approach.

Results

Overall, 28 papers were included: 13 from Canada, 10 from the United Kingdom, five from Australia and none from New Zealand. Identified risk factors included being single/ex-relationship, early service leavers, shorter length of service (but not necessarily early service leavers), junior ranks, exposure to deployment-related traumatic events, physical and mental health diagnoses, and experience of childhood adversity. Protective factors included being married/in a relationship, higher educational attainment, employment, senior ranks, and higher levels of perceived social support.

Conclusion

Adequate care and support are a necessity for the military community. Prevention and intervention strategies for self-harm and suicide behaviours may be introduced early and may promote social networks as a key source of support. This review found a paucity of peer-reviewed research within some populations. More peer-reviewed research is needed, particularly among these populations where current work is limited, and regarding modifiable risk and protective factors.
TITAN: Combining a bidirectional forwarding graph and GCN to detect saturation attack targeted at SDN
Authors: Ran Longyan , Cui Yunhe , Zhao Jianpeng , Yang Hongzhen
Published: April 2024

The decoupling of control and forwarding layers brings Software-Defined Networking (SDN) the network programmability and global control capability, but it also poses SDN security risks. The adversaries can use the forwarding and control decoupling character of SDN to forge legitimate traffic, launching saturation attacks targeted at SDN switches. These attacks can cause the overflow of switch flow tables, thus making the switch cannot forward benign network traffic. How to effectively detect saturation attack is a research hotspot. There are only a few graph-based saturation attack detection methods. Meanwhile, the current graph generation methods may take useless or misleading information to the attack detection, thus decreasing the attack detection accuracy. To solve the above problems, this paper proposes TITAN, a bidirecTional forwardIng graph-based saturaTion Attack detectioN method. TITAN defines flow forwarding rules and topology information, and designs flow statistical features. Based on these definitions, TITAN generates nodes of the bi-forwarding graph based on the flow statistics features and edges of the bi-forwarding graph based on the network traffic routing paths. In this way, each traffic flow in the network is transformed into a bi-directional forwarding graph. Then TITAN feeds the above bidirectional forwarding graph into a Graph Convolutional Network (GCN) to detect whether the flow is a saturation attack flow. The experimental results show that TITAN can effectively detect saturation attacks in SDNs with a detection accuracy of more than 97%.
Exploring the impact of arginine-supplemented immunonutrition on length of stay in the intensive care unit: A retrospective cross-sectional analysis
Authors: Martin Niels D. , Schott Laura L. , Miranowski Mary K. , Desai Amarsinh M. , Lowen Cynthia C. , Cao Zhun , Araujo Torres Krysmaru
Published: April 2024

Background

Arginine-supplemented enteral immunonutrition has been designed to optimize outcomes in critical care patients. Existing formulas may be isocaloric and isoproteic, yet differ in L-arginine content, energy distribution, and in source and amount of many other specialized ingredients. The individual contributions of each may be difficult to pinpoint; however, all cumulate in the body’s response to illness and injury. The study objective was to compare health outcomes between different immunonutrition formulas.

Methods

Real-world data from October 2015 –February 2019 in the PINC AI™ Healthcare Database (formerly the Premier Healthcare Database) was reviewed for patients with an intensive care unit (ICU) stay and ≥3 days exclusive use of either higher L-arginine formula (HAF), or lower L-arginine formula (LAF). Multivariable generalized linear model regression was used to check associations between formulas and ICU length of stay.

Results

3,284 patients (74.5% surgical) were included from 21 hospitals, with 2,525 receiving HAF and 759 LAF. Inpatient mortality (19.4%) and surgical site infections (6.2%) were similar across groups. Median hospital stay of 17 days (IQR: 16) did not differ by immunonutrition formula. Median ICU stay was shorter for patients receiving HAF compared to LAF (10 vs 12 days; P<0.001). After adjusting for demographics, visit, severity of illness, and other clinical characteristics, associated regression-adjusted ICU length of stay for patients in the HAF group was 11% shorter [0.89 (95% CI: 0.84, 0.94; P<0.001)] compared to patients in the LAF group. Estimated adjusted mean ICU length of stay was 9.4 days (95% CI: 8.9, 10.0 days) for the HAF group compared to 10.6 days (95% CI: 9.9, 11.3 days) for the LAF group (P<0.001).

Conclusions

Despite formulas being isocaloric and isoproteic, HAF use was associated with significantly reduced ICU length of stay, compared to LAF. Higher arginine immunonutrition formula may play a role in improving health outcomes in primarily surgical critically ill patients.
Modelling potential distribution of the invasive box tree moth across Asia, Europe, and North America
Authors: Seehausen M. Lukas , Rimmer Alex , Wiesner Abigail , Kenis Marc , Scott-Dupree Cynthia , Smith Sandy M.
Published: April 2024

The box tree moth Cydalima perspectalis (Walker) (Lepidoptera: Crambidae) (BTM) is a native moth throughout eastern Asia, having recently become invasive in Europe (2007) where it feeds on boxwood (= box tree), Buxus spp. The moth rapidly spread across Europe and the Caucasus causing damage to both ornamental and wild Buxus. In 2018, C. perspectalis was found in Toronto, ON, Canada, and has since spread south into the US. To better predict where the moth will establish and have significant impact on ornamental trade in North America, we used most recent scientific literature and distribution points to update the temperature and diapause indices of an existing ecoclimatic CLIMEX model. The model parameters provided a good fit for the potential distribution of BTM compared to its known distribution across eastern Asia and in Europe. Interestingly, our results suggest that the current native distribution in Asia is incomplete and that further expansion is also possible in its introduced range, especially in northern Europe, along the Mediterranean coast of Africa, and eastward to central Russia. In North America, the model predicts that most of North America should be climatically suitable for the moth’s establishment, with the exception of Alaska and the northern territories of Canada, as well as higher elevations in the Rocky Mountains and southern hot and dry areas. Our study highlights the importance of the CLIMEX model to assess the risk of BTM spreading in its newly invaded areas, especially North America, and its use to help make decisions in terms of regulatory dispersal restrictions and choice of management options.
Crossmixed convolutional neural network for digital speech recognition
Authors: Diep Quoc Bao , Phan Hong Yen , Truong Thanh-Cong
Published: April 2024

Digital speech recognition is a challenging problem that requires the ability to learn complex signal characteristics such as frequency, pitch, intensity, timbre, and melody, which traditional methods often face issues in recognizing. This article introduces three solutions based on convolutional neural networks (CNN) to solve the problem: 1D-CNN is designed to learn directly from digital data; 2DS-CNN and 2DM-CNN have a more complex architecture, transferring raw waveform into transformed images using Fourier transform to learn essential features. Experimental results on four large data sets, containing 30,000 samples for each, show that the three proposed models achieve superior performance compared to well-known models such as GoogLeNet and AlexNet, with the best accuracy of 95.87%, 99.65%, and 99.76%, respectively. With 5-10% higher performance than other models, the proposed solution has demonstrated the ability to effectively learn features, improve recognition accuracy and speed, and open up the potential for broad applications in virtual assistants, medical recording, and voice commands.
Intra- and inter-limb strength imbalance and asymmetry in soccer: A comparison of elite senior and junior players
Authors: Śliwowski Robert , Paillard Thierry , Bojkowski Łukasz , Dudziński Witold , Patek Mikołaj , Marynowicz Jakub
Published: April 2024

Evaluation of muscle strength imbalance can be an important element in optimizing the training process of soccer players. The purpose of the study was to examine isokinetic peak torque (PT) and total work (TW) exerted by both knee extensors (quadriceps or Q) and flexors (hamstrings or H), intra-limb imbalance and the magnitude and direction of inter-limb asymmetry in top elite senior (n = 109) and junior (n = 74) soccer players. An isokinetic dynamometry was used to measure maximum peak torque of quadriceps (PT-Q) and hamstrings (PT-H) at an angular velocity of 60° ·s-1, as well as the total work for extensors (TW-Q) and flexors (TW-H) at an angular velocity of 240° ·s-1 in the dominant (DL) and non-dominant leg (NDL) during concentric muscle contraction. Intra-limb imbalance and inter-limb asymmetries were calculated using a standard equation. Statistical analysis using t-test and Mann-Whitney U-test revealed: (a) no differences (p > 0.05) between groups for PT-Q and PT-H, (b) greater strength levels (p < 0.05) for TW-Q and TW-H of senior players than juniors, and (c) no differences (p > 0.05) between groups for intra-limb imbalance and inter-limb asymmetry. Additionally, Pearson’s chi-kwadrat (χ2) analysis showed no differences (p > 0.05) between groups for intra-limb imbalance and inter-limb asymmetry in relation to the ’normative’ values accepted in the literature that indicate an increase in the risk of knee injury. This study shows that isokinetic assessment can be an important tool to identify imbalances/asymmetries and to develop strategies to reduce the risk of muscle injury.
Pharmacological prevention of bone loss and fractures following solid organ transplantations: Protocol for a systematic review and network meta-analysis
Authors: Deng Jiawen , Moskalyk Myron , Hou Wenteng , Zuo Qi Kang , Luo Jinyu
Published: April 2024

Introduction

Solid organ transplant (SOT) recipients can experience bone loss caused by underlying conditions and the use of immunosuppressants. As a result, SOT recipients are at risk for decreased bone mineral density (BMD) and increased fracture incidences. We propose a network meta-analysis (NMA) that incorporates all available randomized control trial (RCT) data to provide the most comprehensive ranking of anti-osteoporotic interventions according to their ability to decrease fracture incidences and increase BMD in SOT recipients.

Methods

We will search MEDLINE, EMBASE, Web of Science, CINAHL, CENTRAL and CNKI for relevant RCTs that enrolled adult SOT recipients, assessed anti-osteoporotic therapies, and reported relevant outcomes. Title and full-text screening as well as data extraction will be performed in-duplicate. We will report changes in BMD as weighted or standardized mean differences, and fracture incidences as risk ratios. SUCRA scores will be used to provide rankings of interventions, and quality of evidence will be examined using RoB2 and CINeMA.

Discussions

To our knowledge, this systematic review and NMA will be the most comprehensive quantitative analysis regarding the management of bone loss and fractures in SOT recipients. Our analysis should be able to provide physicians and patients with an up-to-date recommendation for pharmacotherapies in reducing incidences of bone loss and fractures associated with SOT. The findings of the NMA will be disseminated in a peer-reviewed journal.
‘Resonating across Oceanic Currents’: Special edition editorial
Authors: Asaba Yuiko , Kasai Amane
Published: April 2024

Preoccupied with the historical contradictions of seawater as manifested in the early to mid-twentieth century popular music history surrounding Japan, the Introduction to the Special Issue: ‘Resonating Across Oceanic Currents: Maritime Histories of Popular Music in and from Japan, 1920s-60s’ addresses a potentiality of the maritime frame as a method for moving away from historical periodization in popular music studies, and for reconsidering the approaches to ‘the global music history’. Above all, by contributing to the growing scholarship that engages with the oceanic frames as methods ripe for deconstructing music histories, it argues for the potencies of the maritime frame that, in many respects, brings to centre personal narratives, shifting geopolitical positionalities and subjectivities of musicians, listeners and creators in the study of popular music history.
Korean popular music in-between: Identity strategies between Japanese style and American standards in the 1960s
Authors: Kim Sungmin
Published: April 2024

This article explores collective experiences of Japanese popular music within the post-Second World War South Korean society along with related identity strategies – elimination, stratification and standardization – from postcolonial perspectives and discuss what characterizes ‘Japanese-ness’ as a musical, industrial and social product. In the context of strategies to eradicate it from the urban spaces, cultural industry and memories and bodies of Korean people, Japanese-ness – labelled under the moniker waesaek – was proscribed as a cultural remnant of imperialism, militarism and colonial dominion and thus, a harmful influence on its public. South Korean popular songs categorized as waesaek music within this model were subject to social criticism and gentrified in the music marketplace as trot. On the other hand, Americanization was an important strategy used to construct a new ‘Korean-ness’ separate from the Japanese-ness lingering within the country from its colonial past. Japanese-ness in popular music in post-war South Korea continually changed as it was re-imagined and re-constructed in parallel with musical, social and industrial changes in South Korea. Each of these strategies carries its own corresponding paradoxes, and Korean-ness and Japanese-ness are cast in sharp relief as distinct cultural products while still containing those paradoxes. This article argues that these strategies, both global and local in scope, highlight the fact that post-colonialism cannot be explained merely by the relationship between one colony and one empire but rather evolves in a global and local milieu, in which multiple empires and colonies are intertwined.
Transpacific rehabilitations: Yamaguchi Yoshiko’s 1950 Sacramento concert and post-incarceration Japanese American cultural memory
Authors: Bourdaghs Michael K.
Published: April 2024

Focusing on a recently discovered collection of private recordings of Japanese singers in concert in Sacramento, California, in 1950, this article examines the audio record of the performance by Yamaguchi Yoshiko, previously known as Ri Kōran (Li Xianglan), as an instance of the emergence of new maritime routes of circulation for popular music in the early Cold War period. In the light of the supposed need for both Yamaguchi and her audience of Japanese Americans to seek ‘rehabilitation’ for their wartime activities, including incarceration of the latter in internment camps, the article traces a complex process of negotiation between performer and audience as each seeks to manage the tensions and contradictions of their shifting historical positions. The article also explores other recordings from the same collection, including those by Misora Hibari, Hattori Ryōichi, Watanabe Hamako, Kouta Katsutarō and the Akireta Boys, and provides an account of who made the recordings and how they were unearthed in 2008.
Japanese popular songs brought home: Histories and current circulations of post-Second World War audible souvenirs from US military bases in East Asia
Authors: Aoki Shin
Published: April 2024

This article focuses on the transpacific circulations of Japanese popular songs alongside touring American military personnel in East Asia between 1945 and 1958: that is, from the end of the Second World War, across the span of the Korean War, and up to the year of the American ground forces’ withdrawal from ‘mainland’ Japan. By first tracing the trans-oceanic travels of musical souvenirs such as phonograph records and music boxes, and then by delving into their ‘afterlives’ as ex-souvenirs variously lost or preserved, this article reveals the seemingly minor yet no less significant histories and memories of musical objects containing within them the traces of post-war Japanese popular song. Over this period, musical souvenirs entered into postwar American households with returning military personnel, imparting to family and friends an auditory sensation of ‘Japan’ that carried with it the fantasy of knowing a place and culture that lay far across the Pacific. Although many of the Japanese pop songs contained therein lost their ‘souvenir’ status in the late 1960s, their recent revival via transnational online media suggests new ways of re-‘discovering’ and circulating a wealth of music that might have otherwise fallen into obscurity.
The Chile Pepper in China: A Cultural Biography, Brian R. Dott (2020)
Authors: Chun Allen
Published: April 2024

Review of: The Chile Pepper in China: A Cultural Biography, Brian R. Dott (2020)

New York: Columbia University Press, 296 pp.,

ISBN 978-0-23119-532-4, cloth, $32.00/£28.00
An Endoscopic Ultrasound Diagnosis of a Rare Cause of Pancreatic Body Mass Demonstrating the Transformation to Large B-Cell Lymphoma
Authors: Patel Rahul , Bley Edward , Patel Smita , Foster C. Jonathan
Published: April 2024

The presence of lymphoma in the gastrointestinal tract is most frequently manifested in the stomach and intestines. Pancreatic lymphomas consist of only 0.5% of all pancreatic neoplasms. In this case, we present a patient afflicted by follicular lymphoma with pancreatic involvement. To monitor the progression of this patient's lymphoma, endoscopic ultrasound was used to observe its transformation to large B-cell lymphoma and guide therapy.