Miracle-dz/UniFAR-FTUs huggingface dataset:
Ultralow-noise frequency-agile photonic integrated lasers

Low-noise lasers are of central importance in a wide variety of applications, including high spectral-efficiency coherent communication protocols, distributed fibre sensing, and long distance coherent LiDAR. In addition to low phase noise, frequency agility, that is, the ability to achieve high-bandwidth actuation of the laser frequency, is imperative for triangular chirping in frequency-modulated continuous-wave (FMCW) based ranging or any optical phase locking as routinely used in metrology. While integrated silicon-based lasers have experienced major advances and are now employed on a commercial scale in data centers, integrated lasers with sub-100 Hz-level intrinsic linewidth are based on optical feedback from photonic circuits that lack frequency agility. Here, we demonstrate a wafer-scale-manufacturing-compatible hybrid photonic integrated laser that exhibits ultralow intrinsic linewidth of 25 Hz while offering unsurpassed megahertz actuation bandwidth, with a tuning range larger than 1 GHz. Our approach uses ultralow-loss (1 dB/m) Si$_3$N$_4$ photonic microresonators, combined with aluminium nitride (AlN) or lead zirconium titanate (PZT) microelectromechanical systems (MEMS) based stress-optic actuation. Electrically driven low-phase noise lasing is attained by self-injection locking of an Indium Phosphide (InP) laser chip and only limited by fundamental thermo-refractive noise. By utilizing difference drive and apodization of the photonic chip, a flat actuation response up to 10 MHz is achieved. We leverage this capability to demonstrate a compact coherent LiDAR engine that can generate up to 800 kHz FMCW triangular optical chirp signals, requiring neither any active linearization nor predistortion compensation, and perform a 10 m optical ranging experiment, with a resolution of 12.5 cm.
Multimodal Object Detection via Bayesian Fusion

Object detection with multimodal inputs can improve many safety-critical perception systems such as autonomous vehicles (AVs). Motivated by AVs that operate in both day and night, we study multimodal object detection with RGB and thermal cameras, since the latter can provide much stronger object signatures under poor illumination. We explore strategies for fusing information from different modalities. Our key contribution is a non-learned late-fusion method that fuses together bounding box detections from different modalities via a simple probabilistic model derived from ﬁrst principles. Our simple approach, which we call Bayesian Fusion, is readily derived from conditional independence assumptions across different modalities. We apply our approach to benchmarks containing both aligned (KAIST) and unaligned (FLIR) multimodal sensor data. Our Bayesian Fusion outperforms prior work by more than 13% in relative performance.
Fault-Tolerant Quantum Computation with Static Linear Optics

The scalability of photonic implementations of fault-tolerant quantum computing based on Gottesman-Kitaev-Preskill (GKP) qubits is injured by the requirements of inline squeezing and reconfigurability of the linear optical network. In this work we propose a topologically error-corrected architecture that does away with these elements at no cost - in fact, at an advantage - to state preparation overheads. Our computer consists of three modules: a 2D array of probabilistic sources of GKP states; a depth-four circuit of static beamsplitters, phase shifters, and single-time-step delay lines; and a 2D array of homodyne detectors. The symmetry of our proposed circuit allows us to combine the effects of finite squeezing and uniform photon loss within the noise model, resulting in more comprehensive threshold estimates. These jumps over both architectural and analytical hurdles considerably expedite the construction of a photonic quantum computer.
Potentials of rice husk ash, cowdung ash and powdered clay as grain protectants against Callosobruchus maculatus (F) and Sitophilus zeamais (Mots)

Experiments to assess the potential of cowdung ash, rice husk ash, and powered clay in the control of Callosobruchus maculatus (F) (cowpea beetle) and Sitophilus zeamais (Mots) (maize weevil) were conducted at the Entomology laboratory of the Department of Crop, Soiland Pest Management, Federal University of Technology, Akure, Ondo State, Nigeria from April– July, 2011. The experimentwas carriedoutunderlaboratory conditions of 28o±2oC temperature and55-75% relative humidity. Twenty clean uninfestedseedsof cowpea andmaize were weighedandplacedin petri–dishesto which 1gand2gof decarbonizedash of rice husk, cowdung andpowderedclay were appliedas wellas the control. Alltreatments were replicatedthree times. Data were taken on numberof eggs laid, numberof seeds with eggs, numberof seeds with holes, adultemergence andweightloss forC. maculatus while adultemergence, seeds with holes andweightloss were taken forS. zeamais. The effects of the various concentrations of the treatments on the numberof cowpea seeds with C. maculatus eggs were not significant (P less than 0.05), though the highest numberof eggs was recordedon the control(0g). The lowest numberof C. maculatus adults emerged from seeds treated with cowdung ash, which was significantly different (P less than 0.05) from that of the control. Significant higher weight loss was recorded on untreated cowpea seeds which was significantly different from those treated with rice husk ash and cowdung ash. For maize, number of S. zeamais adult emergence andseeds with holes were significantly different(P less than 0.05) foralltreatments, with untreatedseeds yielding the highestnumberof adults. Significant differences also existedin the weightloss with highestweightloss observedon untreatedmaize grains. The study showedthatcowdungandrice husk ash as well aspowderedclay performedsimilarly atdifferentratesandtheireffectsseem to increase with the concentration. These treatmentsexertedprotectantpropertieson the treatedcowpea andmaize grains. Itistherefore recommendedthathigherratesof thesetreatmentsbe further evaluated
Structural and Optical Properties of New Naphthalene and Perylene Imide Imidazoles

ABSTRACT New unsymmetrically substituted naphthalene and perylene imide imidazoles, N-(2-ethylhexyl)-naphthalene-3,4-(4,5-dicyano-1,2-benzimidazole)-9,10-dicarboxyimide and N-(1-heptyloctyl)-perilene-3,4-(4,5-dicyano-1,2-benzimid-azole)-9,10-dicarboxyimide, were synthesized via condensation reactions of diaminophthalonitrile and aromatic monoimide monoanhydride derivatives. Their structural analyses have been conducted by using general spectroscopic methods including FT-IR, 1H- and 13C-NMR, mass and elemental analysis. The molecular structure of naphthalene derivative was also determined by single crystal x-ray diffraction. Electronic absorption and emission properties were investigated on comparison. For studied compounds, both DFT and TDDFT calculations were carried out with the 6-311G(d,p) basis set, taking into account solvation effects by means of polarizable continuum model as implemented in the Gaussian 09 package.
The Longitudinal Influence of Parental Mindful Attention and Awareness on Parenting and Youth Psychopathology

Objectives: Although much research examining youth psychopathology from an ecological family systems theoretical framework has highlighted negative or pathological parental characteristics, it is important to identify and explore positive parent characteristics, such as mindful attention and awareness, that may be related to youth mental health. Dispositional mindfulness has been related, in cross-sectional research, to higher levels of mindful parenting, which impacts positive and negative parenting and, in turn, offspring internalizing and externalizing symptoms. The current study expands this work by examining associations among these variables in a short-term longitudinal model and by testing potential moderators (i.e., parent and youth gender and youth developmental stage). Methods: A sample of 564 parents (60% mothers) of children between the ages of 3 and 17 reported on their mindful attention and awareness, mindful parenting, positive and negative parenting practices, and their youth’s internalizing and externalizing symptoms at 4 time points over a 12-month period. Results: The structural equation model indicated that higher levels of baseline parent disposition mindful attention and awareness were related to higher levels of mindful parenting at 4 months. Higher levels of mindful parenting were associated with higher levels of positive parenting and lower levels of negative parenting practices at 8 months. Finally, lower levels of negative parenting practices were related to lower levels of internalizing and externalizing symptoms at 12 months. Moderator analyses suggested that all prospective associations in the model were equivalent for mothers and fathers, boys and girls, and children and adolescents. Conclusions: Findings shed light on the importance of parent mindful attention and awareness as it relates to parenting behaviors and youth mental health.
Clinical and Antimicrobial Evaluation of Copaifera langsdorffii Desf. Dental Varnish in Children: A Clinical Study

Background The objective of this study was to evaluate the clinical and microbiological efficacies of (C. langsdorffii) dental varnish in children at high risk of dental caries. Methods This is a longitudinal, randomized, controlled clinical trial. Ninety high-risk caries-free children (ICDAS II = 0) were recruited and randomly divided into three groups: C. langsdorffii, chlorhexidine, or fluoride. The varnishes were applied on the second deciduous molars for three times: baseline (D0), after 90 days (D90), and after 180 days (D180). Saliva was collected on D0, D90, D180, and D360 to evaluate S. mutans reduction. Statistics were carried out by ANOVA, Tukey's test, and the paired t-test. Results Copaiba varnish demonstrated significant S. mutans reduction: D360 versus D0 (p < 0.0001), D180 versus D0 (p < 0.001), D360 versus D90 (p < 0.001), D180 versus D90 (p < 0.001), and D360 versus D180 (p < 0.05). Chlorhexidine varnish significantly reduced S. mutans at D180 versus D0 (p < 0.05). Fluoride reduced at D180 versus D0 (p < 0.001). Conclusions Three annual applications of this varnish showed substantial antimicrobial activity against S. mutans and caries prevention for up to 12 months.
Teratogenic Effect of High Dose of Syzygium guineense (Myrtaceae) Leaves on Wistar Albino Rat Embryos and Fetuses

Syzygium guineense is an important medicinal plant effective against hypertension, diabetes mellitus, and cancer but with no evidence of its teratogenicity. This study was planned to investigate the teratogenic potential of S. guineense leaves on rat embryos and fetuses. Five groups of Wistar albino rats, each consisting of ten pregnant rats, were used as experimental animals. Groups I-III rats were treated with 250, 500, and 1000 mg/kg of hydroethanolic extract of S. guineense leaves, and groups IV and V were control and ad libitum control, respectively. Rats were treated during day 6–12 of gestation. Embryos and fetuses were retrieved at day 12 and day 20 of gestation, respectively. The embryos were assessed for developmental delays and growth retardation. The fetuses were examined for gross external, skeletal, and visceral anomalies. In 12-day old rat embryos, crown-rump length, number of somites, and morphological scores were significantly reduced by the treatment of 1000 mg/kg of the extract. The external morphological and visceral examinations of rat fetuses did not reveal any detectable structural malformations in the cranial, nasal, oral cavities, and visceral organs. The ossification centers of fetal skull, vertebrae, hyoid, forelimb, and hindlimb bones were not significantly varied across all groups. However, even if not statistically significant, high-dose treated rat fetuses had a reduced number of ossification centers in the sternum, caudal vertebrae, metatarsal, metacarpal, and phalanges. Treatment with the hydroethanolic extract of S. guineense leaves produced no significant skeletal and soft tissue malformations. The plant extract did not produce significant teratogenic effects on rat embryos/fetuses up to 500 mg/kg doses but retarded the growth of embryos at high dose (1000 mg/kg) as evidenced by decreased crown-rump length, number of somites, and morphological scores. Therefore, it is not advisable to take large doses of the plant during pregnancy.
The Role of the Flash Visual Evoked Potential in Evaluating Visual Function in Patients with Indirect Traumatic Optic Neuropathy

Purpose To assess the value of the flash visual evoked potential (FVEP) in determining final visual prognosis in patients with indirect traumatic optic neuropathy (TON). Subjects and Methods We included 30 patients diagnosed with indirect TON. Within one week of the onset of the trauma, visual acuity was recorded, pupillary reactions were assessed, FVEP was performed in both eyes. The amplitudes (N1p1 and N2P2) and the latency of P2 for each eye were recorded and amplitude ratio of N2P2 between the affected and normal eye was calculated. In follow-up visits, the cases underwent a complete ophthalmic examination, assessment of visual acuity, pupillary reaction, and FVEP. Results The study included 22 males (73.3%) and 8 females (26.7%). The right eye was involved in 16 patients (53.3%) and left eye was involved in 14 cases (46.7%). According to the findings of FVEP, there was a direct correlation between final visual acuity and initial amplitude of N1p1 and N2P2 and negative correlation with latency of P2 wave. In 20 patients in whom the N1P1 and N2P2 amplitude was within the normal range and amplitude ratio of N2P2 of normal and fellow eye was at least 0.5 and the P2 implicit time was less than 140 ms, they achieved better visual outcome and visual acuity improved in the affected eye. In other 10 patients in whom the N1P1 and N2P2 amplitude was below normal range and the N2P2 amplitude ratio between the normal and the affected eye was less than 0.5 and the P2 implicit time was more than 140 ms, the visual acuity in the affected eye was less than 0.01 and these patients achieved less or no improvement in their visual function. Conclusion Cases with TON usually present with severe loss of vision. FVEP is highly predictive of final visual outcome in patients having indirect TON given that the other eye is normal to be used as the patients’ internal control. More studies are needed to confirm these results.
Association of a Low Geriatric Nutritional Risk Index with Higher Adverse Outcome in the Elderly Patients with Fall Injuries: Analysis of a Propensity Score-Matched Population

Purpose We evaluate the association of Geriatric Nutritional Risk Index (GNRI) and the adverse outcome in elderly patients (≥65 years old) with fall injuries. Patients and Methods Total 1071 elderly patients with fall injuries were enrolled. Patients were divided into four groups: high risk, moderate risk, low risk and no risk (GNRI: <82, 82 to <92, 92 to ≤98 and >98) for patient demography, comorbidities, and adverse outcomes analysis. Results After 1:1 propensity score-matched analysis, 97 patients in high-risk group, 144 patients in moderate-risk group, and 114 patients in low-risk group were compared to no risk group. High-risk group patients had a 5.7-fold higher risk of mortality (p = 0.003) and prolong hospital stay (18.0 vs 12.3 days; p = 0.016) when compared to no-risk group patients. Significantly prolong hospital stay were also found in low-risk and moderate-risk group when compared to no risk group. Conclusion A lower GNRI is associated with prolonged hospital stay in the elderly patients with fall injuries. High nutritional risk (GNRI < 82) is associated with an increased in-hospital mortality rate.
An error budget for digital soil mapping of cation exchange capacity using proximally sensed electromagnetic induction and remotely sensed γ‐ray spectrometer data

The cation exchange capacity (CEC) of soil is widely used for agricultural assessment as a measure of fertility and an indicator of structural stability; however, its measurement is time‐consuming. Although geostatistical methods have been used, a large number of samples must be collected. Using pedometric methods and incorporating easy‐to‐measure ancillary data into models have improved the efficiency of spatial prediction of soil CEC. However, mapping uncertainty has not been evaluated. In this study, we use an error budget procedure to quantify the relative contributions that model, input and covariate error make to prediction error of a digital map of CEC using gamma‐ray (γ‐ray) spectrometry and apparent electrical conductivity (ECa) data. The error budget uses empirical best linear unbiased prediction (E‐BLUP) and conditional simulation to produce numerous realizations of the data and their underlying errors. Linear mixed models (LMMs) estimated by residual maximum likelihood (REML) are used to create the prediction models. The combined error of model [5.07 cmol(+)/kg] and input error [12.88 cmol(+)/kg] is ~12.93 cmol(+)/kg, which is twice as large as the standard deviation of CEC [6.8 cmol(+)/kg]. The individual covariate errors caused by the γ‐ray [9.64 cmol(+)/kg] and EM error [8.55 cmol(+)/kg] were large. Preprocessing techniques to improve the quality of the γ‐ray data could be considered, whereas the EM error could be reduced by the use of a smaller sampling interval in particular near the edges of the study area and at pedoderm boundaries.
Dental Pulp Stem Cells on Implant Surface: An In Vitro Study

In the field of biology and medicine, one hears often about stem cells and their potential. The dental implant new surfaces, subjected to specific treatments, perform better and allow for quicker healing times and better clinical performance. The purpose of this study is to evaluate from a biological point of view the interaction and cytotoxicity between stem cells derived from dental pulp (DPSCs) and titanium surfaces. Through the creation of complex cells/implant, this study is aimed at analyzing the cytotoxicity of dental implant surfaces (Myth (Maipek Manufacturer Industrial Care, Naples, Italy)) and the adhesion capacity of cells on them and at considering the essential factors for implant healing such as osteoinduction and vasculogenesis. These parameters are pointed out through histology (3D cell culture), immunofluorescence, proliferation assays, scanning electron microscopy, and PCR investigations. The results of the dental implant surface and its interaction with the DPSCs are encouraging, obtaining results increasing the mineralization of the tissues. The knowledge of this type of interaction, highlighting its chemical and biological features, is certainly also an excellent starting point for the development of even more performing surfaces for having better healing in the oral surgical procedures related to dental implant positioning.
AresB-Net: accurate residual binarized neural networks using shortcut concatenation and shuffled grouped convolution

This article proposes a novel network model to achieve better accurate residual binarized convolutional neural networks (CNNs), denoted as AresB-Net. Even though residual CNNs enhance the classification accuracy of binarized neural networks with increasing feature resolution, the degraded classification accuracy is still the primary concern compared with real-valued residual CNNs. AresB-Net consists of novel basic blocks to amortize the severe error from the binarization, suggesting a well-balanced pyramid structure without downsampling convolution. In each basic block, the shortcut is added to the convolution output and then concatenated, and then the expanded channels are shuffled for the next grouped convolution. In the downsampling when stride >1, our model adopts only the max-pooling layer for generating low-cost shortcut. This structure facilitates the feature reuse from the previous layers, thus alleviating the error from the binarized convolution and increasing the classification accuracy with reduced computational costs and small weight storage requirements. Despite low hardware costs from the binarized computations, the proposed model achieves remarkable classification accuracies on the CIFAR and ImageNet datasets.
Recurrent Inguinal Hernia Post Laparoscopic Repair: A Retrospective Single-Center Study in Qassim Region, Saudi Arabia

Introduction Inguinal hernia is the most common hernia among the abdominal wall hernias. This study aims to estimate the long-term recurrence rate and laparoscopy-related risk factors for inguinal hernia at King Fahad Specialist Hospital in Buraidah, Al Qassim region, Saudi Arabia. Methods A single-center retrospective study of all laparoscopic hernia repair patients admitted in the surgical department of King Fahad Specialist Hospital in Buraidah, Al Qassim region, Saudi Arabia from January 2016 to July 2020. Results A total of 64 patients were included in the present study. All patients were male with a mean age 42.27±15.79 years. Out of 64 patients, 71.9% were married and 11 (17.2%) were smokers. Most patients were found to be in the elective priority (89.1%) and the emergency cases were 10.1%. A total of 6.3% had a recurrent hernia and 93.7% had a primary hernia. After testing the association of hernia repair and the patient-related factors, it was observed that there is no significant association between recurrent hernia repair and the mean age (p=0.072), body mass index (BMI) (p=0.962), smoking (p=0.347), married patients (p=0.196), and diabetes (p=0.446). Conclusion A total of 6.3 % of patients developed a recurrent inguinal hernia after laparoscopic repair. In contrast to the literature, this study showed that patient-related risk factors were not statically significant among our patients. However, the reasons behind the recurrence rate tend to be multifactorial, including surgical, technical, hospital capability, and patients factors. Therefore, early recognization and management of these risk factors are essential to prevent further cases.