bluuebunny/crossref_metadata_2025_split huggingface dataset:
Photon-trapping-enhanced avalanche photodiodes for mid-infrared applications
Authors: Chen Dekang , March Stephen D. , Jones Andrew H. , Shen Yang , Dadey Adam A. , Sun Keye , McArthur J. Andrew , Skipper Alec M. , Xue Xingjun , Guo Bingtian , Bai Junwu , Bank Seth R. , Campbell Joe C. 
Published: May 2023

AbstractThe fast development of mid-wave infrared photonics has increased the demand for high-performance photodetectors that operate in this spectral range. However, the signal-to-noise ratio, regarded as a primary figure of merit for mid-wave infrared detection, is strongly limited by the high dark current in narrow-bandgap materials. Therefore, conventional mid-wave infrared photodetectors such as HgCdTe require cryogenic temperatures to avoid excessively high dark current. To address this challenge, we report an avalanche photodiode design using photon-trapping structures to enhance the quantum efficiency and minimize the absorber thickness to suppress the dark current. The device exhibits high quantum efficiency and dark current density that is nearly three orders of magnitude lower than that of the state-of-the-art HgCdTe avalanche photodiodes and nearly two orders lower than that of previously reported AlInAsSb avalanche photodiodes that operate at 2 µm. Additionally, the bandwidth of these avalanche photodiodes reaches ~7 GHz, and the gain–bandwidth product is over 200 GHz; both are more than four times those of previously reported 2 µm avalanche photodiodes.
Single-cell multi-omics in the medicinal plant Catharanthus roseus
Authors: Li Chenxin , Wood Joshua C. , Vu Anh Hai , Hamilton John P. , Rodriguez Lopez Carlos Eduardo , Payne Richard M. E. , Serna Guerrero Delia Ayled , Gase Klaus , Yamamoto Kotaro , Vaillancourt Brieanne , Caputi Lorenzo , O’Connor Sarah E. , Robin Buell C. 
Published: May 2023

AbstractAdvances in omics technologies now permit the generation of highly contiguous genome assemblies, detection of transcripts and metabolites at the level of single cells and high-resolution determination of gene regulatory features. Here, using a complementary, multi-omics approach, we interrogated the monoterpene indole alkaloid (MIA) biosynthetic pathway in Catharanthus roseus, a source of leading anticancer drugs. We identified clusters of genes involved in MIA biosynthesis on the eight C. roseus chromosomes and extensive gene duplication of MIA pathway genes. Clustering was not limited to the linear genome, and through chromatin interaction data, MIA pathway genes were present within the same topologically associated domain, permitting the identification of a secologanin transporter. Single-cell RNA-sequencing revealed sequential cell-type-specific partitioning of the leaf MIA biosynthetic pathway that, when coupled with a single-cell metabolomics approach, permitted the identification of a reductase that yields the bis-indole alkaloid anhydrovinblastine. We also revealed cell-type-specific expression in the root MIA pathway.
Targeted dream incubation at sleep onset increases post-sleep creative performance
Authors: Horowitz Adam Haar , Esfahany Kathleen , Gálvez Tomás Vega , Maes Pattie , Stickgold Robert 
Published: May 2023

AbstractThe link between dreams and creativity has been a topic of intense speculation. Recent scientific findings suggest that sleep onset (known as N1) may be an ideal brain state for creative ideation. However, the specific link between N1 dream content and creativity has remained unclear. To investigate the contribution of N1 dream content to creative performance, we administered targeted dream incubation (a protocol that presents auditory cues at sleep onset to introduce specific themes into dreams) and collected dream reports to measure incorporation of the selected theme into dream content. We then assessed creative performance using a set of three theme-related creativity tasks. Our findings show enhanced creative performance and greater semantic distance in task responses following a period of N1 sleep as compared to wake, corroborating recent work identifying N1 as a creative sweet spot and offering novel evidence for N1 enabling a cognitive state with greater associative divergence. We further demonstrate that successful N1 dream incubation enhances creative performance more than N1 sleep alone. To our knowledge, this is the first controlled experiment investigating a direct role of incubating dream content in the enhancement of creative performance.
Socio-cultural practices on the use of beetle grubs as food and feed in western Kenya
Authors: Wanjala Martin N. , Orinda Mary , Nyongesah John M. , Tanga Chrysantus M. , Subramanian Sevgan , Kassie Menale , Egonyu James P. 
Published: May 2023

AbstractWe examined the socio-cultural practices on the use of beetle grubs as food and feed in western Kenya by interviewing 211 randomly selected households and conducting seven focus group discussions in Bungoma, Kakamega, Busia, and Trans Nzoia counties. The grubs were used as food and feed in ~ 39% and 78% of the households, respectively. The perceived benefits of the grubs for human consumption were nutritiousness and no linkage to allergies. The grubs were perceived to enhance animal weight gain and increase poultry egg laying. They were also perceived to recycle nutrients from organic waste, and clean the environment. Toasting and roasting were the dominant methods of preparing the grubs. Lack of knowledge on the grub nutritional benefits and stigma were key deterrents to their consumption. About 66% of the respondents expressed willingness to farm the grubs if the market and rearing protocols are available. Almost 98% of the respondents lacked knowledge of the beetle biology, indicating limited capacity to conserve them. The practices on the use of beetle grubs as food and feed differed across counties and by gender, age, marital status and education level. Strategies for sustainable use of the grubs as food and feed have been proposed and new research directions highlighted.
A novel mucopolysaccharidosis type II mouse model with an iduronate-2-sulfatase-P88L mutation
Authors: Mashima Ryuichi , Ohira Mari , Okuyama Torayuki , Onodera Masafumi , Takada Shuji 
Published: May 2023

AbstractMucopolysaccharidosis type II (MPS II) is a lysosomal storage disorder characterized by an accumulation of glycosaminoglycans (GAGs), including heparan sulfate, in the body. Major manifestations involve the central nerve system (CNS), skeletal deformation, and visceral manifestations. About 30% of MPS II is linked with an attenuated type of disease subtype with visceral involvement. In contrast, 70% of MPS II is associated with a severe type of disease subtype with CNS manifestations that are caused by the human iduronate-2-sulfatase (IDS)-Pro86Leu (P86L) mutation, a common missense mutation in MPS II. In this study, we reported a novel Ids-P88L MPS II mouse model, an analogous mutation to human IDS-P86L. In this mouse model, a significant impairment of IDS enzyme activity in the blood with a short lifespan was observed. Consistently, the IDS enzyme activity of the body, as assessed in the liver, kidney, spleen, lung, and heart, was significantly impaired. Conversely, the level of GAG was elevated in the body. A putative biomarker with unestablished nature termed UA-HNAc(1S) (late retention time), one of two UA-HNAc(1S) species with late retention time on reversed-phase separation,is a recently reported MPS II-specific biomarker derived from heparan sulfate with uncharacterized mechanism. Thus, we asked whether this biomarker might be elevated in our mouse model. We found a significant accumulation of this biomarker in the liver, suggesting that hepatic formation could be predominant. Finally, to examine whether gene therapy could enhance IDS enzyme activity in this model, the efficacy of the nuclease-mediated genome correction system was tested. We found a marginal elevation of IDS enzyme activity in the treated group, raising the possibility that the effect of gene correction could be assessed in this mouse model. In conclusion, we established a novel Ids-P88L MPS II mouse model that consistently recapitulates the previously reported phenotype in several mouse models.
Direct visualization of carbon black aggregates in nitrile butadiene rubber by THz near-field microscope
Authors: Moon Youngil , Lee Haneol , Jung Jaekap , Han Haewook 
Published: May 2023

AbstractThe use of filling agents for rubber reinforcement is beneficial in various industrial applications, and several experimental methods have been used to study the effect of fillers on rubber. However, due to the lack of a suitable imaging technique, filler dispersion and distribution in rubber cannot be easily displayed. Thus, we utilize the THz near-field microscope (THz-NFM) to directly visualize the distribution of carbon black (CB) aggregates in nitrile butadiene rubber (NBR). The THz time-domain spectroscopy (THz-TDS) was used to evaluate the optical properties of the NBR specimens. Results revealed significant indices contrast between CB and NBR at the THz regime, which was attributed to the variation in electrical conductivities. The micrographs of NBR in the THz-NFM revealed the distribution of CB aggregates. The area fraction (AF) of the CB aggregates was calculated using a binary thresholding algorithm to compare with the transmission electron microscope method. Both methods yielded comparable AF values, suggesting, for the first time, that CB can be detected in the NBR without preprocessing the specimens.
An observational study on factors associated with ICU mortality in Covid-19 patients and critical review of the literature
Authors: Lavrentieva Athina , Kaimakamis Evangelos , Voutsas Vassileios , Bitzani Militsa 
Published: May 2023

AbstractThe novel pandemic caused by SARS-CoV-2 has been associated with increased burden on healthcare system. Recognizing the variables that independently predict death in COVID-19 is of great importance. The study was carried out prospectively in a single ICU in northern Greece. It was based on the collection of data during clinical practice in 375 adult patients who were tested positive for SARS-CoV-2 between April 2020 and February 2022. All patients were intubated due to acute respiratory insufficiency and received Invasive Mechanical Ventilation. The primary outcome was ICU mortality. Secondary outcomes were 28-day mortality and independent predictors of mortality at 28 days and during ICU hospitalization. For continuous variables with normal distribution, t-test was used for means comparison between two groups and one-way ANOVA for multiple comparisons. When the distribution was not normal, comparisons were performed using the Mann–Whitney test. Comparisons between discrete variables were made using the x2 test, whereas the binary logistic regression was employed for the definition of factors affecting survival inside the ICU and after 28 days. Of the total number of patients intubated due to COVID-19 during the study period, 239 (63.7%) were male. Overall, the ICU survival was 49.6%, whereas the 28-day survival reached 46.9%. The survival rates inside the ICU for the four main viral variants were 54.9%, 50.3%, 39.7% and 50% for the Alpha, Beta, Delta and Omicron variants, respectively. Logistic regressions for outcome revealed that the following parameters were independently associated with ICU survival: wave, SOFA @day1, Remdesivir use, AKI, Sepsis, Enteral Insufficiency, Duration of ICU stay and WBC. Similarly, the parameters affecting the 28-days survival were: duration of stay in ICU, SOFA @day1, WBC, Wave, AKI and Enteral Insufficiency. In this observational cohort study of critically ill COVID-19 patients we report an association between mortality and the wave sequence, SOFA score on admission, the use of Remdesivir, presence of AKI, presence of gastrointestinal failure, sepsis and WBC levels. Strengths of this study are the large number of critically ill COVID-19 patients included, and the comparison of the adjusted mortality rates between pandemic waves within a two year-study period.
Association between stress and eating behaviour among Malaysian adolescents prior to examination
Authors: Shah Nurfazlinda Md , Aghamohammadi Nasrin , Thangiah Nithiah , Ng Ai Kah , Majid Hazreen Abdul 
Published: May 2023

AbstractStudies have shown the prevalence of mental health and obesity among adolescents is at increasing trend due to urbanisation and changes in lifestyle. This study is to investigate the level of stress and its impact on eating behaviour among Malaysian adolescents. A total of 797 multi-ethnic Malaysian secondary school student participated in this cross-sectional study. Data was collected two weeks prior to final year examination. A validated Cohen Perceived Stress Scale questionnaire was used to assess the stress level with subsample analysis of 261 participants’ saliva cortisol level. A validated Child Eating Behaviour questionnaire was used to explore eating behaviours. There were 29.1% adolescents having high stress with the mean saliva cortisol 3.8 nmol/L. A positive correlation was observed between perceived stress and emotional overeating; stronger among urban (r = 0.32), female (r = 0.31), underweight (r = 0.34) and moderately stressed adolescents (r = 0.24). In addition, a positive correlation was found between perceived stress and food responsiveness; strongest among Malay (r = 0.23), male (r = 0.24), underweight (r = 0.30) and adolescents with high perceived stress (r = 0.24). The perceived stress level prior to exam period affects the emotional eating and external eating patterns of adolescents.
Comparative study of ternary hybrid nanofluids with role of thermal radiation and Cattaneo-Christov heat flux between double rotating disks
Authors: Noreen Sobia , Farooq Umar , Waqas Hassan , Fatima Nahid , Alqurashi M. S. , Imran Muhammad , Akgül Ali , Bariq Abdul 
Published: May 2023

AbstractHeat and mass transfer are crucial to numerous technical and commercial operations, including air conditioning, machinery power collectors, crop damage, processing food, heat transfer mechanisms, and cooling, among numerous others. The fundamental purpose of this research is to use the Cattaneo-Christov heat flux model to disclose an MHD flow of ternary hybrid nanofluid through double discs. The results of a heat source and a magnetic field are therefore included in a system of PDEs that model the occurrences. These are transformed into an ODE system using similarity replacements. The first-order differential equations that emerge are then handled using the computational technique Bvp4c shooting scheme. The Bvp4c function in MATLAB is used to numerically solve the governing equations. The influence of the key important factors on velocity, temperature, nanoparticles concentration, and is illustrated visually. Furthermore, increasing the volume fraction of nanoparticles improves thermal conduction, increasing the heat transfer rate at the top disc. The graph indicates that a slight increase in melting parameter rapidly declines the velocity distribution profile of nanofluid. The temperature profile was boosted due to the growing outcomes of the Prandtl number. The increasing variations of the thermal relaxation parameter decline the thermal distribution profile. Furthermore, for some exceptional instances, the obtained numerical answers were compared to previously disclosed data, yielding a satisfactory compromise. We believe that this discovery will have far-reaching ramifications in engineering, medicine, and the field of biomedical technology. Additionally, this model can be used to examine biological mechanisms, surgical techniques, nano-pharmacological drug delivery systems, and the therapy of diseases like cholesterol using nanotechnology.
Food Taboo and associated factors among pregnant women attending antenatal clinics at Bahir Dar City, North West Ethiopia, 2021: cross-sectional study
Authors: Abere Meseret , Azene Abebaw Gedef 
Published: May 2023

AbstractFood taboo is any unacceptable food items in the society that arise mainly based on religious, cultural, historical and social principles. Developing countries faced the triple burden of malnutrition of under nutrition, micronutrient deficiencies and overeating. Food taboos have great effect on pregnant women through prohibited essential food and/or drinks. There is a paucity of study conducted in food taboo practice among pregnant women in Ethiopia. This study aimed to assess the prevalence of food taboo practice and associated factors among pregnant women attending antenatal care (ANC) at Bahir Dar city, 2020. Institutional based cross-sectional study design was conducted among 421 pregnant women attending antenatal care clinics. Stratified sampling technique was used to approach the study participants, and interviewer administered questionnaire was used for data collection. Binary logistic regression analysis was conducted to identify predictors. The prevalence of food taboo practices among pregnant women was 27.5% (95% CI 23.2–31.8%) at the Bahir Dar city. Most food items avoided during pregnancy were meat, honey, milk, fruit and cereals. Reasons for avoidance of these food items were plastered on the fetal head, and making fatty baby which is difficult for deliver. Maternal age 20–30 years (AOR = 8.39, 95% CI 3.49–20.14), more than 30 years [AOR = 10.56, 95% CI (2.00, 51.74)], more than 2 parity [AOR = 9.83 95% CI (2.79, 34.70)], no previous experience of the ANC visit [AOR = 2.68, 95% CI (1.26, 5.73)], and no information about nutrition [AOR = 4.55, 95% CI (1.77, 11.70)] were significantly associated with practice of food taboo. This study revealed that prevalence of food taboo is high during pregnancy. The implications of this study that needs strengthening nutrition counseling components of ANC follow-up and health professionals needs to design and implement strategic health communication intended to reorient misconceptions and myths for the pregnant women regarding the food taboo.
Origin variations and brachial plexus relationship of the dorsal scapular artery
Authors: Lai Kuen-Cherng , Ho Han-Chen 
Published: May 2023

AbstractThe dorsal scapular artery can either be a direct branch of the subclavian artery or a branch of the transverse cervical artery. Origin variation is related to its relationship with the brachial plexus. Anatomical dissection was performed on 79 sides of 41 formalin-embalmed cadavers in Taiwan. The origin of the dorsal scapular artery and the variations of its brachial plexus relationship were scrutinized and analyzed. Results showed that the dorsal scapular artery originated most frequently from the transverse cervical artery (48%), followed by the direct branch from the third part (25%) and the second part (22%) of the subclavian artery and from the axillary artery (5%). Only 3% of the dorsal scapular artery passed through the brachial plexus if its origin was the transverse cervical artery. However, 100% and 75% of the dorsal scapular artery passed through the brachial plexus when they were direct branches of the second and the third part of the subclavian artery, respectively. Suprascapular arteries were also found to pass through the brachial plexus when they were direct branches from the subclavian artery, but all passed over or under the brachial plexus if they originated from the thyrocervical trunk or transverse cervical artery. Variations in the origin and course of arteries around the brachial plexus are of immense value not only to the basic anatomical knowledge but also to clinical practices such as supraclavicular brachial plexus block and head and neck reconstruction with pedicled or free flaps.
Association of Molnupiravir and Nirmatrelvir-Ritonavir with reduced mortality and sepsis in hospitalized omicron patients: a territory-wide study
Authors: Wai Abraham Ka-chung , Lee Teddy Tai-loy , Chan Sunny Ching-long , Chan Crystal Ying , Yip Edmond Tsz-fung , Luk Luke Yik-fung , Ho Joshua Wing-kei , So Kevin Wang-leong , Tsui Omar Wai-kiu , Lam Man-lok , Lee Shi-yeow , Yamamoto Tafu , Tong Chak-kwan , Wong Man-sing , Wong Eliza Lai-yi , Rainer Timothy Hudson 
Published: May 2023

AbstractThis study evaluates the association between antivirals (Molnupiravir and Nirmatrelvir-Ritonavir) and all-cause and respiratory mortality and organ dysfunction among high-risk COVID-19 patients during an Omicron outbreak. Two cohorts, Nirmatrelvir-Ritonavir versus control and Molnupiravir versus control, were constructed with inverse probability treatment weighting to balance baseline characteristics. Cox proportional hazards models evaluated the association of their use with all-cause mortality, respiratory mortality, and all-cause sepsis (a composite of circulatory shock, respiratory failure, acute liver injury, coagulopathy, and acute liver impairment). Patients recruited were hospitalized and diagnosed with the COVID-19 Omicron variant between February 22, 2022 and April 15, 2022, and followed up until May 15, 2022. The study included 17,704 patients. There were 4.67 and 22.7 total mortalities per 1000 person-days in the Nirmatrelvir-Ritonavir and control groups respectively before adjustment (weighted incidence rate ratio, − 18.1 [95% CI − 23.0 to − 13.2]; hazard ratio, 0.18 [95% CI, 0.11–0.29]). There were 6.64 and 25.9 total mortalities per 1000 person-days in the Molnupiravir and control groups respectively before adjustment (weighted incidence rate ratio per 1000 person-days, − 19.3 [95% CI − 22.6 to − 15.9]; hazard ratio, 0.23 [95% CI 0.18–0.30]). In all-cause sepsis, there were 13.7 and 35.4 organ dysfunction events per 1000 person-days in the Nirmatrelvir-Ritonavir and control groups respectively before adjustment (weighted incidence rate ratio per 1000 person-days, − 21.7 [95% CI − 26.3 to − 17.1]; hazard ratio, 0.44 [95% CI 0.38–0.52]). There were 23.7 and 40.8 organ dysfunction events in the Molnupiravir and control groups respectively before adjustment (weighted incidence ratio per 1000 person-days, − 17.1 [95% CI, − 20.6 to − 13.6]; hazard ratio, 0.63 [95% CI 0.58–0.69]). Among COVID-19 hospitalized patients, use of either Nirmatrelvir-Ritonavir or Molnupiravir compared with no antiviral use was associated with a significantly lower incidence of 28-days all-cause and respiratory mortality and sepsis.