Miracle-dz/UniFAR-FTUs huggingface dataset:
Design and Investigation of a Metamorphic InAs Channel Inset InP HEMT for Cryogenic Low-Noise Amplifiers

This work proposes a 100 nm metamorphic InP HEMT with an InAs channel inset for cryogenic environment millimetre wave applications. The usage of an ultra-thin 2 nm barrier layer, unique composite channel topology and III-V material selection provides superior electron confinement in the channel, enhancing 2DEG concentration and mobility, thereby improving the speed of the proposed device. We achieve a unity current gain frequency (<inline-formula> <tex-math notation="LaTeX">$f_{\mathrm {T}}$ </tex-math></inline-formula>) of 248.9 GHz and a maximum oscillation frequency (<inline-formula> <tex-math notation="LaTeX">$f_{\mathrm {MAX}}$ </tex-math></inline-formula>) of 523.9 GHz with a current gain of 67.7 dB at 0.1 GHz, 298 K. A <inline-formula> <tex-math notation="LaTeX">$f_{\mathrm {T}}/f_{\mathrm {MAX}}$ </tex-math></inline-formula> of 5.02 GHz/10.01 GHz is achieved at 90 K. Off-state leakage current is in the nanoampere range with minimum noise figure (<inline-formula> <tex-math notation="LaTeX">$NF_{\mathrm {MIN}}$ </tex-math></inline-formula>) of only 0.09 dB at 10 GHz, 90 K. We compare the DC, RF, noise and parasitic characteristics of the proposed device with other composite channel InP HEMTs proposed in latest works and showcase performance improvements in all domains. The performance achieved by using an InAs insert specifically is also justified, with InGaAs-InAs-InGaAs channel HEMTs providing 1.4 times better <inline-formula> <tex-math notation="LaTeX">$f_{\mathrm {T}}$ </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$f_{\mathrm {MAX}}$ </tex-math></inline-formula> with only half the NFMIN of their InGaAs-InP-InGaAs channel counterparts. The proposed composite channel device showcases anomalous trends in electron scattering rate and electron mobility with impurity concentration and temperature variation. A novel frequency-and-temperature dependent small signal model has been put forth which accounts for these atypical cryogenic trends to accurately predict the behavior of the device under varying RF and temperature conditions.
Design of In-Orbit Sample Container Transfer Mechanism for Chang’E-5 Lunar Sample Return Mission

In this paper, a pawl composite linkage transfer mechanism is designed for the automatic in-orbit sample transfer mission of Chang’E-5 lunar sample return mission, which can realize the sample container in-orbit transfer under various critical constraints such as lightweight, miniaturization, and narrow working space. Resistance during the whole process as well as the sensitive factors that affect the resistance during the sample container transfer process are investigated and designed. The sample container transfer process has been verified by the test system on the ground, indicating that the design can satisfy the requirements of the sample transfer mission. The developed transfer mechanism completed the Chang’E-5 sample return mission successfully with good consistency between space and ground, verifying the correctness and effectiveness of the design.
Distributed optical fiber sensor technology for bite force mapping

Measuring bite force gives important information about the performance of the jaw muscles. Enhancement of bite force measurements, particularly 2D force mapping, can be achieved through the application of advanced distributed fiber optics sensing techniques, which present the capability to acquire high resolution measurements. Optical Backscatter Reflectometry (OBR), based on the principles of Optical Frequency Domain Reflectometry (OFDR), is the key to achieve spatially distributed measurements and transform a single-mode fiber (SMF) into a cost-effective minimally invasive sensor. The OBR interrogator, manufactured by LUNA, catches the light backscattered by each section of the fiber and detects the spectral variation induced by the stain and pressure application. We have developed two methods to construct a two-dimensional map of the applied bite force. In the first a SMF has been bent into four lines and embedded into a silicone mouthguard. In the second approach we used massive Scattering‑Level Multiplexing (SLMux), which exploits fibers with different scattering levels: a standard low scattering SMF to enable the multiplexing, and a MgO‑nanoparticles doped fibers with a 40 dB higher scattering for sensing purposes. The setup with eight multiplexed fibers allows to obtain bite force mapping for each side of the jaw by embedding four fibers for left and right sides. The pressure sensitivity coefficient of the maps has been effectively calculated. The setup has been validated for 2D force mapping over the silicone mouthguard with millimeter resolution. The capability of optical fiber to be multiplexed and embedded in non-uniform geometries results in a high resolved and precise 2D bite force reconstruction.
A Novel Lane-Change Decision-Making With Long-Time Trajectory Prediction for Autonomous Vehicle

In the process of autonomous vehicle lane changing, a reliable decision-making system is crucial for driving safety and comfort. However, traditional decision-making systems have short-term characteristics, which makes them susceptible to real-time inference from surrounding vehicles. Usually, system sacrifices driving comfort to ensure the safety of the lane change. Balancing driving safety and comfort has always been a research challenge. Long-term trajectory prediction can provide accurate future trajectories of target vehicles, providing reliable long-term information to compensate for the short-term variability of decision systems. This paper proposes a novel decision-making model with long-term trajectory prediction for lane-changing. First, we constructed a long-term trajectory prediction model to predict the trajectories of surrounding vehicles. Besides, we built a lane change decision-making model based on fuzzy inferencing, considering the predicted trajectories to infer the relative relationship between other vehicles and the self-driving car. The establishment of the fuzzy rule library considered the vehicle speed, acceleration, system delay time, driver delay time and the distance between vehicles. Finally, we created a dataset for training and testing the trajectory prediction model, and we built 4 cases simulation environments, for two or three vehicles on a straight road or curved road, respectively, to test the decision-making model. Experimental results show that our proposed model can ensure driving safety and improve driving comfort.
Laparoscopic Plication for Left Anterior Diaphragmatic Eventration in a Pediatric Patient: A Case Report

Reported here is the first documented laparoscopic repair of a rare partial diaphragmatic eventration in a pediatric patient. The case involves a three-year-old female who had recurrent cough. While a Morgagni hernia was the initial impression, an eventration of the left anterior diaphragm was instead found on laparoscopy. Repair was aided by using transcutaneous traction, with plication achieved by intracorporeal sutures. The patient recovered uneventfully and follow-up x-ray after six months demonstrated an intact repair. Analogous diaphragmatic anomalies may have divergent clinical manifestations. Bochdalek hernias, while often associated with severe respiratory distress in affected neonates, may also not manifest overtly in other patients. Likewise, different anomalies may have similar clinical presentations. Patients with Morgagni hernias or eventrations, while often asymptomatic, can also present with severe pulmonary and gastrointestinal impairments. The diagnostic uncertainty is highlighted in the present case, wherein a child preoperatively diagnosed to have a Morgagni hernia was found intra-operatively to have a rare left anterior diaphragmatic eventration. 5 The laparoscopic approach adopted not only facilitated diagnosis, but was adaptable enough to enable intracorporeal repair for an altered indication. Key words: diaphragmatic eventration, diaphragmatic hernia, laparoscopy
From Burning to Learning: Adaptive Governance to Wildfires in the North-West Province of South Africa

Abstract Wild fires are a recurring natural hazard on the African continent. Although wildfires are necessary for ecological management and regeneration of certain species, the risk posed transcends into impacts on sustainabledevelopment and the protection of livelihoods. Better management of wildfires becomes necessary because changeswithin the environment are becoming more complex. Social and ecological systems are intertwined and theresulting “complex or mega-system” needs to be able to learn and adapt to change. Research over a two-year periodin the North-West Province of South Africa considered the adaptation in management (systems), which took placebetween various role-players in multi-layered and polycentric institutions. Through a qualitative research design,the 2011 and 2012 wild fire seasons were investigated. The notion of adaptive governance was used as benchmarkto determine which transformative actions took place. The prime objective of the research is to what extent hasadaptive governance taken place during the 2011 and 2012 wild fire seasons in North-West Province, SouthAfrica? The research found that role-players were able to adapt their management systems to include aspects suchas information provision, dealing with conflict, induced legal compliance, provision of infrastructure and resources,and encouraged participation and adaptation. The paper recommends that emphasis on conflict management andresolution, applying nesting through various management levels, devised rules for wild fire management relevantwith the ecological conditions, and the implementation of accountability mechanisms to be put in place.
Ossifying fibroma from surgical excision to periodontal management: case report

Introduction and importance: Peripheral ossifying fibroma is one of the commonly occurring reactive benign lesions that occurs in the gingiva, predominantly in females, especially in the anterior maxillary region of young women and in pediatric patients. It causes unsatisfactory esthetics, difficulty in maintaining good oral hygiene and difficulty in mastication. The importance of this clinical case is to emphasize the interest of early management of the residual defect after the removal of the gum growth. Case presentation: A 39-year-old female patient was referred to the clinical department of periodontology, with the chief complaint of bleeding gingiva, unsatisfactory esthetics and gum growth on the interproximal area in relation to left maxillary canine and premolar region, with the size ~2 cm×1.5 cm. Clinical discussion: This article describes an atypical case of peripheral ossifying fibroma with the clinical, histopathologic, and radiographic features in the posterior maxilla in an adult female patient. Treatment consisted of complete surgical excision, gingival curettage, and management of keratinezed gingiva by utilizing laterally displaced flap. Clinical healing was satisfactory at 2 weeks, and excellent coverage of residual mucogingival defect with no evidence of recurrence was achieved 3 weeks postoperatively. The patient was satisfied with case resolution with a follow-up of 1 year. Conclusion: Although surgical excision is the treatment of choice, sometimes it may induce residual soft tissue defect, which may further precipitate functional and esthetic discrepancies if not managed.
A NEW FOSSIL CANID ASSEMBLAGE FROM THE LATE PLEISTOCENE OF NORTHERN SOUTH AMERICA: THE CANIDS OF THE INCIARTE ASPHALT PIT (ZULIA, VENEZUELA), FOSSIL RECORD AND BIOGEOGRAPHY

Abstract Canids invaded South American during the Pliocene (2.8–3.1 Ma BP) as part of the Great American Biotic Interchange, but their record on the continent is relatively poor until the Pleistocene. However, even the Pleistocene record of the group is patchy and biased, with few records for the northern part of South America. In this paper we describe a new assemblage of canids found at the Inciarte asphalt pits (Zulia, Venezuela). These remains are associated with a variety of extinct Pleistocene mammals dated between 25–27 Ka BP. Canids in this assemblage include Protocyon troglodytes (Lund 1838), Protocyon sp. , Canis dirus Leidy, 1858, Urocyon cf. U. cinereoargenteus (Schreber, 1775), and an indeterminate canid. This is the first record of Urocyon Baird, 1758 from the Late Pleistocene in South America and constrains the timing of its dispersal to South America. The distributional record of Protocyon Giebel, 1855 and P. troglodytes is expanded 1,500 km north of previous records and constitutes the first record of these taxa in Venezuela. The presence of C. dirus at Inciarte constitutes the fourth locality for this species in South America.
The botanical inventory and ecology of scaly tree ferns (cyatheaceae) of mount salak, java - indonesia

Scaly tree ferns (Cyatheaceae) are considered a threatened species due to habitat destruction and over-exploitation. The new data dealing with the diversity and ecology of scaly tree ferns of Mount Salak, Java, Indonesia, are presented. A total of 1387 adult individuals belonging to seven species included in two genera were recorded at the elevation range of 1100-1450 m within an area of 4.5 ha. Alsophila oinops (Hassk.) R.M. Tryon, Alsophila sp. , and Sphaeropteris persquamulifera (Alderw.) R.M. Tryon were rare species. Alsophila junghuhniana Kunze and A. polycarpa (Jungh.) R.M. Tryon were found to be abundant in this area. Sphaeropteris glauca (Blume) R.M. Tryon, and S. squamulata (Blume) R.M. Tryon were included as common species. The finding of A. oinops on Mount Salak at 1200-1300 m asl. is a new ecological record for the Malesian region. Some species were found in relatively the same habitat characteristics but differed in their need for light intensity. Scaly tree ferns were found to show varied distribution patterns. Bangladesh J. Bot. 52(3): 741-747, 2023 (September)
Neuropathy with Cerebral Features Induced by Nitrous Oxide Abuse—A Case Report

Nitrous oxide abuse may cause functional cobalamin deficiency and subsequent damage to the peripheral nerves, the spinal cord, and the brain, a symptom complex best described by the term cobalamin neuropathy. Here, we report a case of cobalamin neuropathy with uncommon cerebral symptomatology following nitrous oxide intoxication and contextualize the symptomatology. A 22-year-old male with a history of mixed drug dependency presented at the emergency room after inhaling six 615 g cylinders, equal to ~1800 L, of nitrous oxide daily for two weeks. His main complaints were rapidly progressing paresthesias and gait difficulties, but he was also found to suffer from memory impairment and signs of extrapyramidal pathology in the form of dystonic posturing and athetosis. Neuroimaging demonstrated spinal cord hyperintensities consistent with subacute combined degeneration. The patient had low serum cobalamin and high plasma homocysteine, suggesting cobalamin neuropathy. After commencing treatment with parenteral hydroxocobalamin, plasma homocysteine normalized. The extrapyramidal symptoms disappeared during the first days of treatment, whereas the cognitive and peripheral symptoms only partially resolved over the following 20 days. This case highlights how neurological symptoms such as hyperkinetic movements and memory impairment may be associated with chronic nitrous oxide abuse. It is unclear to what extent these and other symptoms of cobalamin neuropathy are reversible, which underscores the public health concern.
New U/Th and amino-acid racemization dating and interpretation of Pleistocene sequences from West Caicos Island (Caicos platform): Implication for cyclostratigraphy

The Pleistocene sequences covering West Caicos Island (Caicos Platform) show a more complicated geometry than previously thought and provide a good example of lateral and chronological variability of sediments deposited during the same sea-level history. Studied core transects at Boat Cove and Company Point on the western coast of the island display several vertically stacked, shallowing-upward sedimentary sequences comprising peri-reefal and/or oolitic facies, separated by soil zones. Previous interpretations proposed that these sequences were formed during distinct and successive interglacial sea-level highstands of the Pleistocene, whereas pedogenic horizons were correlated with glacial lowstands. Our new geochronological data show that the uppermost two sequences observed at the studied locations were both deposited during the last interglacial period, suggesting that sea-level history was indeed complex during this time period. In addition, the underlying sequence at Boat Cove must not be correlated with the penultimate interglacial highstand, but with an older highstand event in the middle Pleistocene. This example of lateral and temporal variability of meter-scale sequences must be remembered when applying cyclostratigraphic concepts to older carbonate successions.
Fostering Excellence in Obstetrical Surgery

Introduction This obstetric surgery review is directed toward the common obstetrical surgeries (caesarean delivery, VBAC/TOLAC, operative vaginal delivery, placenta accreta spectrum) with evidence for quality and safety to allow for obstetrical outcome excellence. Materials and Methods This focused scoping review has used a structured process for article identification and inclusion for each of the focused surgeries. Results The review results provide an obstetrical surgery (OS) overview for caesarean delivery, vaginal birth after caesarean delivery and/or trial of labor after caesarean delivery, operative vaginal delivery, placenta accreta spectrum; considerations for quality and safety variance due to non-clinical human factors; quality improvement (QI) tools; OS QI implementation cohorts; implementation considering certain barriers and solutions. Conclusion Administrative health care systems and obstetrical surgery care providers cannot afford, not to consider and implement, certain evidenced-based “bottom-up/top-down” processes for quality and safety, as the patients will demand the quality and the safety, but the lawyers should not have to enforce it.
Correlation Influence and Quantification of Grain Size on Radon Radioactivity for (Ca2SiO4) Ore Rocks

The present study is carried out to investigate the influence of grain size on the level of radon radioactivity for calcium silicate (Ca 2 SiO 4 ) ore rocks, which are used widely in many construction materials, particularly cement. The polymeric nuclear detector is used to determine radon activity concentration and assessment of the radiological impact of (Ca 2 SiO 4 ) ore rocks. In addition to explaining the influence and quantification of grain size on radon radioactivity hence acts as a great radiological impact assessment and radiation protection to specify if it poses a risk to human health, moreover environmental safety. The investigated samples were analyzed by alpha trace detector (LR-115 NTD) to measure the radioactivity concentration of radon, which is produced in the continental crust by the natural decay series of uranium-238 and penetrates the pore spaces where it is imparted by diffusion and sent out into the atmosphere. The research results explained the correlation of grain size which influences the radon exhalation rate. The study indicated a normal radiation level (>1000 Bqm -3 ) regarding the international limitation and permissible levels recommended by IAEA, ICRP, and UNSCEAR.
Magic Spell of Superiority in Madura: A Study of Structure, Meaning and Function

Spell is a tradition that exists and develops orally in the form of an oral tradition. One type of spell that is developing is the superiority spell. This study uses a Qualitative Research Method that starts with an idea, collects information theoretically,designs a research plan, identifies data, analyzes data, and reports findings. Based on the findings, it is known that most of the pattern consists of content and closing. Meaning is seen based on the presence or absence of "taste value" in a word or sentence.After analyzing the 10 mantras of superiority, it turns out that there are words whose true meaning is not known or are called connotative meanings. In the function elementby using the function of fetimism, it can be seen that in the superiority spell it functionsto gain superiority over the opponent, in other words, namely safety for the spellcaster.
A Physical Fatigue Evaluation Method for Automotive Manual Assembly: An Experiment of Cerebral Oxygenation with ARE Platform

Due to the complexity of the automobile manufacturing process, some flexible and delicate assembly work relies on manual operations. However, high-frequency and high-load repetitive operations make assembly workers prone to physical fatigue. This study proposes a method for evaluating human physical fatigue for the manual assembly of automobiles with methods: NIOSH (National Institute for Occupational Safety and Health), OWAS (Ovako Working Posture Analysis System) and RULA (Rapid Upper Limb Assessment). The cerebral oxygenation signal is selected as an objective physiological index reflecting the human fatigue level to verify the proposed physical fatigue evaluation method. Taking auto seat assembly and automobile manual assembly as an example, 18 group experiments were carried out with the ARE platform (Augmented Reality-based Ergonomic Platform). Furthermore, predictions of metabolic energy expenditure were performed for experiments in Tecnomatix Jack. Finally, it is concluded that the proposed physical fatigue evaluation method can reflect the human physical fatigue level and is more accurate than the evaluation of metabolic energy consumption in Tecnomatix Jack because of the immersion that comes with the AR devices and the precision that comes with motion capture devices.
A Comparative Evaluation on Melody Generation of Large Language Models

Music has always been central to human culture. With the rise of digital tech and smart devices, its role in the Consumer Electronics (CE) sector has grown. Recently, large-scale language models (LLMs) like ChatGPT and Bard are promising to change the way we compose music. This paper explores the composing ability of Large Language Models (LLM) such as ChatGPT and Bard. Unlike older methods that required deep musical and statistical knowledge, LLM lets users simply describe what they want in music. We evaluated this LLM on how well it matches user input and the overall quality of its compositions, looking at factors like repetitiveness and scale diversity. This research aims to highlight the strengths, uses, and limits of LLM in music, setting the stage for its greater role in CE and the wider music world.Generated Melodies: https://github.com/545659928/LLMMelody