Miracle-dz/UniFAR-FTUs huggingface dataset:
Dual-loop spread-spectrum clock generator

Discusses a newer technique to reduce EMI involving varying or modulating the clock frequency in a PC. This technique is known as spread spectrum, since the frequency spectrum of the clock is spread over a wider range of frequencies. Spread-spectrum technology has previously been reported to reduce EMI. This paper presents a dual-loop spread-spectrum clock generator (SSCG).
Twisted Morava K‐theory and E‐theory

For a class H∈Hn+2(X;Z) , we define twisted Morava K‐theory K(n)*(X;H) at the prime 2 , as well as an integral analogue. We explore properties of this twisted cohomology theory, studying a twisted Atiyah–Hirzebruch spectral sequence, a universal coefficient theorem (in the spirit of Khorami). We extend the construction to define twisted Morava E‐theory, and provide applications to string theory and M‐theory.
Invisible Lichen Planopilaris Unmasked by Dermatoscopy

Lichen planopilaris is a form of lymphocyte-mediated primary cicatricial alopecia characterized by perifollicular scaling progressing to patches of alopecia depending on the clinical variant. The course is relentlessly progressive and chronic. Hence, early diagnosis and institution of therapy are imperative to halt the disease progress. Although definitive diagnosis is made by scalp biopsy, the detection is usually delayed. Dermatoscopy helps in early recognition of this condition which at that stage is clinically invisible. We report a 23-year-old female who presented with hair loss and scalp scaling without clinically obvious patches of alopecia.
Fixed-time consensus for multi-agent systems with discontinuous inherent dynamics over switching topology

ABSTRACT This paper is concerned with the fixed-time consensus problem of multi-agent systems. Unlike conventional consensus-based investigations, where nonlinear inherent dynamics satisfying the Lipschitz continuous condition is assumed or simply no inherent dynamics is involved for each agent, we are dealing with a more general case: agents with discontinuous nonlinear inherent dynamics. By using non-smooth analysis and fixed-time stability techniques, distributed protocols are proposed to achieve the fixed-time consensus over fixed and switching topology. Then, for a class of linear multi-agent systems, a new distributed controller is proposed to further reduce the calculation cost while achieving the agreement. A distinctive feature of the work is that the estimation of settling time for consensus is independent of initial states of agents, which provides flexibility for applications implemented in unknown environment. Finally, numerical simulations are given to demonstrate the effectiveness of the theoretical results.
Cartogram Visualization for Bivariate Geo-Statistical Data

We describe bivariate cartograms, a technique specifically designed to allow for the simultaneous comparison of two geo-statistical variables. Traditional cartograms are designed to show only a single statistical variable, but in practice, it is often useful to show two variables (e.g., the total sales for two competing companies) simultaneously. We illustrate bivariate cartograms using Dorling-style cartograms, yet the technique is simple and generalizable to other cartogram types, such as contiguous cartograms, rectangular cartograms, and non-contiguous cartograms. An interactive feature makes it possible to switch between bivariate cartograms, and the traditional (monovariate) cartograms. Bivariate cartograms make it easy to find more geographic patterns and outliers in a pre-attentive way than previous approaches, as shown in Fig. 2 . They are most effective for showing two variables from the same domain (e.g., population in two different years, sales for two different companies), although they can also be used for variables from different domains (e.g., population and income). We also describe a small-scale evaluation of the proposed techniques that indicates bivariate cartograms are especially effective for finding geo-statistical patterns, trends and outliers.
Episodic and semantic memory: a comparison of amnesic and demented patients.

Episodic (recall of passages) and semantic (letter and category fluency) memory tasks were administered to Alzheimer's Disease (early stages), Huntington's Disease (HD), and alcoholic Korsakoff patients matched for overall severity of dementia. Although all three patient groups were severely (and equally) impaired on memory for passages, only the Alzheimer and Korsakoff patients emitted numerous intrusion errors. On the fluency tasks, the performance of the mild Alzheimer patients was distinguishable from that of the other two patient groups. On both fluency tasks, the HD and Korsakoff patients demonstrated severe and moderate deficits, respectively, whereas the mild Alzheimer patients were impaired only on the category fluency task. As with the episodic memory test, the Alzheimer and Korsakoff patients made more perseverative errors than did the HD patients on letter fluency. These findings suggest that Alzheimer and HD patients' impairments on episodic and semantic memory tasks reflect different underlying processes. The performance of Alzheimer patients is affected by their language dysfunction and an increased sensitivity to proactive interference; the deficits of the HD patients appear due to a general retrieval problem. Similarities in the error patterns (i.e., perseveration errors) of Alzheimer and Korsakoff patients are discussed with regard to recent neuropathological findings.
Colposcopic Accuracy in the Diagnosis of Microinvasive and Occult Invasive Carcinoma of the Cervix

One hundred eighty patients with microinvasive and occult invasive squamous cell carcinoma of the cervix who were examined by colposcopy during a ten-year period are reviewed. Forty-two percent of patients with microinvasive carcinoma and 28% of patients with occult invasive carcinoma had an unsatisfactory colposcopic examination. Colposcopy led to the correct management in 90% of patients with occult invasive cancer and in 84% of patients with microinvasive carcinoma. Colposcopy appeared to be less sensitive in detecting microinvasive lesions than in detecting occult carcinoma. Two-thirds of the errors made were colposcopistrelated, either failure of interpretation or protocol violation. A small but definite group of patients will have lesions whose colposcopic appearance is not sufficiently distinct or characteristic to permit a diagnosis of early invasion.
The Crystal Structure of the Primary Ca2+ Sensor of the Na+/Ca2+ Exchanger Reveals a Novel Ca2+ Binding Motif*

The Na+/Ca2+ exchanger is a plasma membrane protein that regulates intracellular Ca2+ levels in cardiac myocytes. Transport activity is governed by Ca2+, and the primary Ca2+ sensor (CBD1) is located in a large cytoplasmic loop connecting two transmembrane helices. The binding of Ca2+ to the CBD1 sensory domain results in conformational changes that stimulate the exchanger to extrude Ca2+. Here, we present a crystal structure of CBD1 at 2.5Å resolution, which reveals a novel Ca2+ binding site consisting of four Ca2+ ions arranged in a tight planar cluster. This intricate coordination pattern for a Ca2+ binding cluster is indicative of a highly sensitive Ca2+ sensor and may represent a general platform for Ca2+ sensing.
Cutting Edge: Hierarchy of Maturity of Murine Memory B Cell Subsets

The paucity of murine memory B cell markers has been a significant impediment to the study of memory. The most commonly used marker is IgG, which is neither sensitive nor specific, because activated nonmemory cells can be IgG+, and memory cells can be IgM+. In this article, we show that, together, PD-L2 (CD273), CD80, and CD73 define at least five phenotypic subsets of murine memory B cells. These subsets are generated from naive cells bearing a single BCR in response to a single T-dependent Ag. This diversity is independent of class switch, because IgG1- and IgM-bearing memory cells are found within each compartment. Memory subsets defined by PD-L2, CD80, and CD73 are biologically distinct from one another, because they differ in ontogeny and selection. Together, these distinctions suggest that there is a spectrum of memory B cells and progressive acquisition from more naive-like to more memory-like properties.
IMPROVEMENT OF POSITION TRACKING PERFORMANCE OF ELECTRO HYDRAULIC ACTUATOR SYSTEMS WITH DISTURBANCE

Electro hydraulic actuator (EHA) system has inner and outer loops like a cascade system. The inner loop consists of an electric motor, a gear pump, and an angular velocity controller, and the outer loop consists of a hydro-actuator and a position controller. Especially, dead-band nonlinearity that exists between the electric motor and the gear pump and friction that occurs between the cylinder and the piston are considered. The tracking performance of EHA position control systems becomes unsatisfactory due to the dead-band and friction effects. Thus, in order to improve the position tracking performance of EHA systems with disturbance, backstepping control scheme for the desired position tracking is proposed, which is compared with the conventional PID scheme.
Fuzzy Quantum-Behaved Particle Swarm Optimization Algorithm

Aiming at the drawback of being easily trapped into the local optima and premature convergence in quantum-behaved particle swarm optimization algorithm, fuzzy quantum-behaved particle swarm optimization algorithm was proposed. In fuzzy quantum-behaved particle swarm optimization algorithm, the center of potential of particle was influenced by more than two particles in the neighborhood and the influence was defined as fuzzy variable that is computed by Gaussian distribution. The simulation results of testing four standard benchmark functions demonstrate that fuzzy quantum-behaved particle swarm optimization algorithm has best optimization performance and robustness, the validity and feasibility of the method are verified.
Severe keloids caused by hydrogen cyanide injury: a case report

The purpose of this study was to report severe keloids caused by hydrogen cyanide injury. Hydrogen cyanide poisoning is still a problem as an occupational disease in China. We report a 37-year-old man with severe hydrogen cyanide poisoning. The patient fell on the floor after inhalation of hydrogen cyanide and was burned on his back by hydrocyanic acid. Sequential treatment included amyl nitrite by inhalation, intravenous sodium nitrite 3%, and intravenous sodium thiosulfate 25%. Other treatment consisted of incision of the trachea, mannitol and furosemide, antibiotics, and nutrient support measures. The patient also received hyperbaric oxygen therapy; during the first treatment, he became apneic and cardiopulmonary resuscitation was supplied in the hyperbaric oxygen chamber. He eventually recovered, but a large amount of keloids developed on his back and buttocks.
Opuntia ficus indica f. inermis fruit juice alleviates ethanol-induced kidney injury in rats

The present work studied the protective effect of Opuntia ficus indica f. inermis fruit juice (OFIJ) against ethanol-induced renal dysfunction in rats. Chronic ethanol administration (3 g/kg b.w) during 12 weeks to Wistar rats, significantly (p < 0.01) increased the serum and kidney malondialdehyde (MDA), the serum contents of urea, creatinine, gamma glutamyl transferase (GGT) and the urinary glucose and protein levels. Whereas, copious ethanol intoxication significantly (p < 0.01) decreased the vitamin E and C levels in serum and kidney tissue as well as the glutathione content (GSH) and the activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px) and caused a severe renal histological injuries. Rivalry pre-treatment of ethanol-fed rats with OFIJ (20 and 40 ml/kg b.w., orally), interestingly attenuated the increases in serum and kidney MDA, and enhanced the antioxidant status of the rats by increasing the levels of SOD, CAT, (GSH-Px), GSH and vitamins. The biochemical findings positively corroborate with the amelioration of kidney histological morphology. The results suggest that the renal protective effect of Opuntia ficus indica f. inermis fruit juice (OFIJ) is by attenuating oxidative stress induced by copious ethanol supplement.
A type system for Continuation Calculus

Continuation Calculus (CC), introduced by Geron and Geuvers [2], is a simple foundational model for functional computation. It is closely related to lambda calculus and term rewriting, but it has no variable binding and no pattern matching. It is Turing complete and evaluation is deterministic. Notions like “call-by-value” and “call-by-name” computation are available by choosing appropriate function definitions: e.g. there is a call-by-value and a cal l-by-name addition function. In the present paper we extend CC with types, to be able to defin e data types in a canonical way, and functions over these data types, defined by iteration. Da ta type definitions follow the so-called “Scott encoding” of data, as opposed to the more familiar “Church encoding”. The iteration scheme comes in two flavors: a call-by-value an d a call-by-name iteration scheme. The call-by-value variant is a double negation variant of call-by-name iteration. The double negation translation allows to move between call-by-name and call-by-value.
Small and low-profile GaN hybrid-IC LNA using embedded-IC process in silicon

This paper presents new compact, low-profile GaN hybrid-IC technologies. Two different kinds of IC integration methods based on a silicon substrate are studied to make GaN hybrid-ICs. First, a hybrid-IC LNA is designed and fabricated to estimate their RF performances with the combination of a discrete transistor and silicon integrated passive devices (IPDs) in which an input and output matching networks are integrated as thin-film devices. Second, two GaN HEMT transistors are fully embedded in the silicon interposer using cavities to make a low-profile package. All kinds of passive components for matching networks are also integrated on the Si-interposer and their interconnections are made using lithography technology. The size of the realized hybrid GaN power LNA is only 1.6 × 2.4 × 0.12 mm3 and it is almost the same as the commercial MMIC size.
Mycoplasma penetrans and Other Mycoplasmas in Urine of Human Immunodeficiency Virus-Positive Children

ABSTRACT Urine samples from children with human immunodeficiency virus (HIV) infection and healthy controls were examined for mycoplasmas by culture. Standard biochemical assays, sodium dodecyl sulfate-polyacrylamide gel electrophoresis, and PCR (16S and 16S-23S spacer rRNA region) were used for identification of isolates. Mycoplasmas were identified from 13 (87%) of 15 HIV-positive patients and 3 (20%) of 15 HIV-negative control patients. The frequency and type of mycoplasma varied with the severity of HIV infection.Mycoplasma penetrans, Mycoplasma pirum,Mycoplasma fermentans, and Mycoplasma genitalium were isolated from patients with severe immunodeficiency. Mycoplasma hominis and Ureaplasma urealyticum were isolated more frequently from children in the early stages of HIV infection and from HIV-negative patients.Mycoplasma penetrans was isolated from one (50%) of two patients in Centers for Disease Control and Prevention (CDC) group B and from five (55.5%) of nine pediatric patients with AIDS (CDC group C). This is the first report that indicates that “AIDS-associated” mycoplasmas are more common in HIV-infected children than in HIV-negative controls.
Collapse and rebound of a laser-induced cavitation bubble

A strong laser pulse that is focused into a liquid produces a vapor cavity, which first expands and then collapses with subsequent rebounds. In this paper a mathematical model of the spherically symmetric motion of a laser-induced bubble is proposed. It describes gas and liquid dynamics including compressibility, heat, and mass transfer effects and nonequilibrium processes of evaporation and condensation on the bubble wall. It accounts also for the occurrence of supercritical conditions at collapse. Numerical investigations of the collapse and first rebound have been carried out for different bubble sizes. The results show a fairly good agreement with experimental measurements of the bubble radius evolution and the intensity of the outgoing shock wave emitted at collapse. Calculations with a small amount of noncondensable gas inside the bubble show its strong influence on the dynamics.
Primary health care for Indo‐Chinese children in Australia

This study reports the detailed analysis of 61 consecutive presentations by recent immigrants from Indo‐China to the Casualty Department of a modern Australian Children's Hospital. The parents/guardians were interviewed either in the Casualty Department or in their homes. Indo‐Chinese children coming to a Casualty Department manifested the same age distribution and spectrum of illnesses that is seen in the general Australian paediatric population. However, significantly fewer presentations to hospital occurred due to accidents/trauma when the group was compared with the general population attending the Casualty Department. Only 21%‐of the Vietnamese and Cambodian families can communicate satisfactorily with hospital staff without interpreter help. Fifty‐one per cent of parents reported that they did not have enough English for a medical interview without an interpreter. Twenty‐eight per cent did riot have enough English to communicate at all. Parents of Vietnamese children reported that on occasions they had not sought medical care for their children because of language difficulties. Many families do not know that an Interpreter Service is available, and many believe that access to such a service is available only through a doctor. Many of these children also use traditional Chinese remedies in the context of their contemporary Australian lives. We have found no evidence that this practice causes late presentation with deleterious effects, or any evidence that it compromises modern ‘Western’ treatment.
Keratinocyte growth factor in the promotion of human chorionic gonadotropin production in human choriocarcinoma cells.

OBJECTIVE Several growth factors and cytokines appear to participate in the proliferation or differentiation of trophoblast cells. The purpose of this study was to investigate the extent to which keratinocyte growth factor participates in the development of human embryonic and trophoblast cells at the maternal-fetal interface. STUDY DESIGN The reverse transcriptase-polymerase chain reaction method was used to determine the gene expression of keratinocyte growth factor and keratinocyte growth factor receptor in human choriocarcinoma cells (BeWo), human teratocarcinoma cells (PA-1), and human endometrial stromal cells. We also examined the effects of keratinocyte growth factor on cell proliferation and production of human chorionic gonadotropin in BeWo and PA-1 cells. RESULTS Keratinocyte growth factor gene was expressed in all cell types. The expression was pronounced in stromal cells of the endometrium collected during the secretory phase and early pregnancy. The keratinocyte growth factor expression was also enhanced in the differentiated BeWo cells. The expression of keratinocyte growth factor receptor gene was observed only in the BeWo cells. The addition of keratinocyte growth factor to the medium did not affect cell proliferation of the BeWo and PA-1 cells. On the other hand, keratinocyte growth factor (100 ng/mL) significantly enhanced human chorionic gonadotropin production in the BeWo cells. Stimulatory action of keratinocyte growth factor on human chorionic gonadotropin production in the BeWo cells was markedly enhanced after forskolin-induced differentiation. CONCLUSIONS We conclude that keratinocyte growth factor may play an important role in promotion of human chorionic gonadotropin production in the trophoblast cells.
Influence of patient positioning on sensitivity of mesenteric portography for detecting an anomalous portosystemic blood vessel in dogs: 34 cases (1997-2000).

OBJECTIVE To determine whether sensitivity of detecting an anomalous portosystemic blood vessel during operative mesenteric portography varied with patient positioning. DESIGN Retrospective study. ANIMALS 34 dogs with a portosystemic shunt diagnosed via scintigraphy or surgery. PROCEDURE Portograms were evaluated for a portosystemic blood vessel. Sensitivity was calculated from results obtained with dogs in left lateral, right lateral, and dorsal recumbency and from results obtained with dogs in 2 or 3 positions. Differences in sensitivity among positions and between 2 examiners were evaluated. RESULTS Sensitivity was 85, 91, and 100% in dorsal, right lateral, and left lateral recumbency, respectively. Sensitivity was lower in dorsal recumbency than in left lateral recumbency, although differences were not significant. There was no significant difference between sensitivity of results obtained in dorsal and right lateral recumbency or right lateral and left lateral recumbency. Sensitivity for combined right lateral and dorsal positions was 97%, which was better than that in dorsal recumbency alone, although the difference was not significant. Because sensitivity in left lateral recumbency was 100%, there was no need to evaluate the improvement obtained by combining the result of this position with the results of other positions. CONCLUSION AND CLINICAL RELEVANCE Results of mesenteric portography varied with patient positioning. The optimal position varied among patients but left lateral recumbency may be better and dorsal recumbency worse. Sensitivity may be improved by performing the test with the patient in orthogonal recumbent positions.
A Game-Theoretic Analysis of Uplink Power Control for a Non-Orthogonal Multiple Access System with Two Interfering Cells

This paper investigates the power control problem for the uplink of a non-orthogonal multiple access (NOMA) system with two cells. The game-theoretic approach is used to study the stability of distributed power control algorithms. It is shown that a unique Nash equilibrium exists if the Perron-Frobenius eigenvalue of a certain link gain matrix is less than one. A distributed power control algorithm is constructed, which is guaranteed to converge to the Nash equilibrium. Furthermore, the optimality property of the Nash equilibrium is studied. It is shown that the equilibrium is globally optimal in minimizing total power consumption, provided that some technical conditions are satisfied. Numerical results show that the power-controlled NOMA system outperforms its orthogonal counterparts.
Weighted ABG: A General Framework for Optimal Combination of ABG Path-Loss Propagation Models

In this paper we propose a novel path-loss model, the Weighted ABG (WABG), which suitably allows integrating or combine different available datasets, or previously proposed 5G propagation path-loss models from the state-of-the-art. Our proposal is therefore a new ABG-based approach which integrates other existing models, leading to the best possible approximation in least-square sense, considering different weighting policies. We evaluate the performance of the WABG in several 5G scenarios, and we carry out a complete comparison of the proposed method against several recently published ABG models, showing that the WABG obtains the best results in terms of model’s accuracy.