Miracle-dz/UniFAR-FTUs huggingface dataset:
Air-interface of high data rate wireless access

High data rate, reliable wireless access has been the focus in the design of the future wireless broadband communications. The wireless access is increasingly becoming data centric, and has to meet the requirements of a wide array of traffic ranging from voice, multimedia, and other real-time applications. The technology that work behind the scenes to make all this happen is constantly improving; improvements in the physical layer including new coding and modulation schemes that use spatial multiplexing (transmitting and receiving signals through multiple antennas), and improvements in medium access strategy (currently physical agnostic) is analyzed. The role of MIMO MAC and inter-layer interactions in wireless open system interface are identified, to lay the framework for a cross-layer design, of a physical aware medium access layer.
Expressed in a Jurkat T Cell Monocyte Chemotactic Protein-1 Receptor B Chemotactic Protein-1 Receptor A and Functional Differences Between Monocyte

The monocyte chemotactic protein-1 (MCP-1) receptor (MCP-1R) is expressed on monocytes, a subpopulation of memory T lymphocytes, and basophils. Two alternatively spliced forms of MCP-1R, CCR2A and CCR2B, exist and differ only in their carboxyl-terminal tails. To determine whether CCR2A and CCR2B receptors function similarly, Jurkat T cells were stably transfected with plasmids encoding the human CCR2A or CCR2B gene. Nanomolar concentrations of MCP-1 induced chemotaxis in the CCR2B transfectants that express high, intermediate, and low levels of MCP-1R. Peak chemotactic activity was shifted to the right as receptor number decreased. Five-fold more MCP-1 was required to initiate chemotaxis of the CCR2A low transfectant, but the peak of chemotaxis was similar for the CCR2A and CCR2B transfectants expressing similar numbers of receptors. MCP-1-induced chemotaxis was sensitive to pertussis toxin, implying that both CCR2A and CCR2B are G i a protein coupled. MCP-1 induced a transient Ca 2 1 ﬂux in the CCR2B transfectant that was partially sensitive to pertussis toxin. In contrast, MCP-1 did not induce Ca 2 1 ﬂux in the CCR2A transfectant. Since MCP-1 can stimulate chemotaxis of the CCR2A transfectant without inducing Ca 2 1 mobilization, Ca 2 1 ﬂux may not be required for MCP-1-induced chemotaxis in the Jurkat transfectants. These results indicate that functional differences exist between the CCR2A and CCR2B transfectants that can be attributed solely to differences
INFLUENCE OF SEX HORMONES AND TISSUES ON COLLOIDAL THORIUM DIOXIDE DISTRIBUTION AND EFFECTS IN RABBITS *

During the period from 1950 to 1956 we investigated the role of the reticuloendothelial system in the removal of protein from the circulatory system. In these studies we used thorotrast as a blocking agent and, for the most part, measurements on normal female rabbits yielded consistent results. Labeled plasma protein leaves the circulation at a reproducible rate which is reduced to about t$ of the control value by the administration of thorotrast. Many of these data have been published and references may be found in an earlier publication of this Academy. ' Some of the experiments performed at that time, however, are recorded only in the form of a doctoral dissertation by Dr. Paldino.2 Because this information seems germane to the discussion of this conference, we should like to present it here.
Non-nutritional factors affecting lactation persistency in dairy ewes: a review

Abstract Milk production is largely related to the shape of the lactation curve. Key elements of the lactation pattern are peak yield, which is the maximum daily yield reached during lactation, and lactation persistency, which is the medium rate of milk yield decrease after the lactation peak. The ideal lactation curve should have a reasonably high peak and a flat trend afterwards. A more persistent lactation is desirable because it is related to better animal health and reduction of feeding costs. Effective strategies to improve lactation persistency require a deep understanding of the main factors that affect this trait, including genetics, hormonal status and administration, udder morphology, seasonal changes, management, animal health (e.g. mastitis), stress and nutrition. This review covers the effects of non-nutritional factors on lactation persistency in dairy sheep.
A Friend Like Me: Modeling Network Formation in a Location-Based Social Network

Abstract This article studies the strategic network formation in a location-based social network. We build an empirical model of social link creation that incorporates individual characteristics and pairwise user similarities. Specifically, we define four user proximity measures from biography, geography, mobility, and short messages. To construct proximity from unstructured text information, we build topic models using Latent Dirichlet Allocation. Using Gowalla data with 385,306 users, 3 million locations, and 35 million check-in records, we empirically estimate the model to find evidence on the homophily effect on network formation. To cope with possible endogeneity issues, we use exogenous weather shocks as our instrumental variables and find the empirical results are robust: network formation decisions are significantly affected by our proximity measures.
The role of glycogen synthase in the development of hyperglycemia in type 2 diabetes – ‘To store or not to store glucose, that's the question’

This review deals with the role of glycogen storage in skeletal muscle for the development of insulin resistance and type 2 diabetes. Specifically, the role of the enzyme glycogen synthase, which seems to be locked in its hyperphosphorylated and inactivated state, is discussed. This defect seems to be secondary to ectopic lipid disposition in the muscle cells. These molecular defects are discussed in the context of the overall pathophysiology of hyperglycemia in type 2 diabetic subjects.
Typhoid fever complicated by hepatitis, nephritis, and thrombocytopenia.

A patient with documented typhoid fever manifested several very severe and unusual complications. These included (1) typhoid hepatitis characterized histologically by "Mallory nodules" and clinically by profound jaundice and hepatic encephalopathy, (2) acute renal failure with histological findings suggestive of typhoid nephritis, and (3) symptomatic thrombocytopenia. Typhoid as a cause of acute pyrexial disorders remains an important entity in the United States.
Accuracy and Interpretation of Rapid Influenza Tests in Children

BACKGROUND. Influenza rapid antigen detection (rapid tests) can provide timely identification of infection and aid in clinical decision-making. Although the interpretation of test results depends on test characteristics and influenza prevalence, this information is limited in routine clinical practice. OBJECTIVE. We sought to assess the times at which rapid tests are most predictive of influenza infection. METHODS. The New Vaccine Surveillance Network enrolled children aged <5 years who were hospitalized with respiratory symptoms or fever from October 2000 through September 2004. Nasal and throat swabs were obtained, and influenza virus was detected by culture and reverse-transcription polymerase chain reaction. Provider-ordered rapid influenza tests were compared with the criterion standard (culture and reverse-transcription polymerase chain reaction) to determine their sensitivity and specificity. The New Vaccine Surveillance Network also enrolled children in outpatient settings during the 2002–2003 and 2003–2004 influenza seasons and determined the weekly influenza prevalence among symptomatic children. Trends in weekly predictive values of the rapid tests were estimated over the influenza seasons. RESULTS. Rapid influenza tests had an overall sensitivity of 63% and specificity of 97%. In 2002–2003, the prevalence of influenza in symptomatic outpatient children peaked at 21% and stayed above 10% for ∼4 weeks. In contrast, in 2003–2004, influenza prevalence peaked at 60% and remained above 20% for ∼6 weeks. The positive predictive value of the rapid tests approached 80% when influenza prevalence was ≥15% but decreased to <70% when influenza prevalence was <10%. CONCLUSIONS. Influenza prevalence varies between and within seasons. On the basis of our estimates, rapid tests are of limited use when prevalence is <10%. The appropriate interpretation of rapid influenza tests requires local influenza surveillance and timely communication of this information to the practitioners.
A method to manage unknown values generation and propagation during gate level simulations of multi-clock digital circuits

The paper presents a method for unknown signal values generation and propagation management during gate level digital simulations of multi-clock circuits. Unknown values occur at outputs of clock domain boundary flip-flops and latches when their timing parameters are violated by input signals and clocks. The method is based on gate level Verilog circuit model transformations. The transformation do not changes normal logic behaviour of the circuit but influences it only in case of timing violation. The source of a timing violation information for the method are Verilog macro functions used in standard cells library files to describe timing constraints of a particular flip-flop or latch model. Proposed method is general, flexible and able to cope with the challenges in the design process of digital multi-clock and asynchronous circuits posed by today's nanometer technologies.
A ubiquitous mobile telemedicine system for the elderly using RFID

The last two years have witnessed an explosion of interest in Radio-Frequency Identification (RFID) and mobile technologies. Radio frequency identification systems have many applications in manufacturing, supply chain and healthcare. In an RFID system, products and objects are given RFID tags to identify themselves. In a health care context, the use of RFID technology can be employed for not only cutting down health care costs but also help automating and streamlining patient identification processes in and outside hospitals. However, privacy and security issues pose considerable challenges on these systems. In this paper, we present a mobile telemedicine solution based on low cost wearable RFID bracelet tags for perceiving emergency situations in elderly with chronic diseases and initiate emergency action. The proposed system can assist patients inside as well as outside hospitals, collect vital signs of the elderly for delivering prompt care remotely, and help to improve the Activity of Daily Living (ADL).
A subunit interface mutant of yeast pyruvate kinase requires the allosteric activator fructose 1,6-bisphosphate for activity.

A variant form of yeast pyruvate kinase (EC 2.7.1.40) with Ser-384 mutated to proline has been engineered in order to study the allosteric properties of this enzyme. Both the mutant and wild-type enzymes were overexpressed in a strain of yeast in which the genomic copy of the pyruvate kinase gene had been disrupted by an insertion of the Ura3 gene. Both enzymes were purified to homogeneity and their kinetic properties characterized. The wild-type enzyme displays sigmoid kinetics with respect to phosphoenolpyruvate (PEP) concentration, and is activated by the allosteric effect fructose 1,6-bisphosphate with concomitant reduction in co-operativity. In contrast, the mutant was found to be dependent on the presence of the effector for catalytic activity and was inactive in its absence. The fully activated mutant enzyme had a kcat. 1.6 times greater than that of the wild-type enzyme. The mutation introduced into the enzyme is in an intersubunit contact which is known to be critical for the allosteric properties of the enzyme, and is far removed from the active site. The major effect of the mutation seems to be to stabilize the low-affinity T state of the apoenzyme, although kcat. is also affected. The S0.5 for PEP and S0.5 for ADP of the wild-type enzyme were 0.22 +/- 0.004 and 0.15 +/- 0.01 mM respectively (means +/- S.E.M.). In the activated mutant enzyme, these kinetic parameters increased to 0.67 +/- 0.03 and 0.43 +/- 0.03 mM respectively. The cooperativity between ADP-binding sites was altered in the mutant enzyme, with the Hill coefficient (h) for ADP increasing to 1.65 +/- 0.07 in the presence of the effector, compared with a value of 0.01 +/- 0.07 for the wild-type enzyme under the same conditions. CD spectroscopy revealed the secondary structure of the mutant enzyme to be little different from that of the wild-type enzyme, indicating that the two enzymes have similar secondary structures in solution. Precise tertiary and quaternary structures such as intersubunit and interdomain interactions may be modified. An improved purification procedure has been devised that allows large quantities of enzyme to be rapidly prepared.
Generation and Sizing of Particles for Aerosol-Based Nanotechnology

Traditionally, the generation of nanoparticles for technological applications has been mostly performed by classical wet chemistry or lithographic methods, and their size has been commonly determined in situ by electron microscopy techniques. Advances in aerosol technology over the past 30 years have provided methods that enable the generation and measurement of nanosize building blocks, and have opened up new oppor tunities in the assembly of nanostructured materials and nanodevices. This article provides a brief review on state-of-the-art techniques for generating nanoparticles of well-defined size and chemical composition in view of applications in nanotechnology. Covering atomization techniques from the liquid phase and nanoparticle synthesis from the gas phase, we discuss the advantages and limitations of each method. Considering the advantages of on-line methods that aerosols instruments of fer, we describe the most ef ficient techniques for measuring the size distributions of airborne nanosize particles. Finally, we provide a brief discussion on existing and emerging applications of aerosol-based nanotechnology.
Face Distinctiveness and Delayed Testing: Differential Effects on Performance and Confidence

The author investigated the effect of delayed testing on participants' memory for distinctive and typical faces. Participants viewed distinctive and typical faces and were then tested for recognition immediately or after a delay of 3, 6, or 12 weeks. Consistent with prior research, analysis of measure of sensitivity (d') showed that participants performed better on distinctive rather than typical faces, and memory performance declined with longer retention intervals between study and testing. Furthermore, the superior performance on distinctive faces had vanished by the 12-week test. Contrary to d' data, however, an analysis of confidence scores indicated that participants were still significantly more confident on trials depicting distinctive faces, even with a 12-week delay between study and recognition testing.
Randomness of a combined TRNG based on the ring oscillator sampling method

Combining random numbers produced by many independent generators can significantly improve the statistical properties of the output sequence. This statement is true for deterministic and non-deterministic sources of random numbers. In cryptography, a user often needs sequences with very good statistical properties but originating from a non-deterministic system. In this paper, we present the results of statistical tests and a new method for distinguishing pseudo and true randomness for sequences produced by a combined true random number generator (TRNG). The generator uses ring oscillators with outputs sampled by a signal of another clock. The combined TRNG was realized in a field programmable gate array (FPGA) produced by Xilinx.
Comparison of GeneXpert MTB/RIF Assay in Broncho Alveolar Lavage and Gastric Lavage Samples

Objective: To compare the yield from Gastric lavage (GL) and Broncho alveolar lavage (BAL) samples in adult patients suspected case of Tuberculosis but not producing sputum. Methodology: 80 adults with suspected case of tuberculosis but not producing sputum were recruited. 72 patients were then subjected to one gastric lavage followed by Broncho-alveolar lavage in the same morning. The collected samples were subjected to GeneXpert MTB/RIF assay. Result: Of the 72 patients samples, the mean age was 38.6 years. 41 (56.9%) were male and 31 (43.1%) were female. History of TB contact was present in 25 (34.7%) patients. 37 (51.4%) patients had GeneXpert MTB/RIF positive on BAL and/or GL samples. The GeneXpert MTB/RIF of BAL fluid was positive on 35 (48.6%), which was not significantly greater than that for specimens from GL, which was 28 (38.9%) (p > 0.05). In 26 (36.1%) cases, GeneXpert MTB/RIF was positive in both BAL and GL samples. Conclusion: This study showed the yield of GeneXpert MTB/RIF in GL was comparable to BAL to detect Mycobacterium tuberculosis complex. Patients who can’t produce sputum, GL can be a good alternative to BAL to detect Mycobacterium tuberculosis complex in resource poor areas and patients who do not tolerate Bronchoscopy.
Attempts of Ranking in a Series of Synthetic Nonpsychotropic Cannabinoids

Abstract Dexanabinol and other synthetic 6aS-trans cannabinoids are devoid of cannabimimetic activity, as they do not have affinity toward cannabinoid receptors. On the other hand, these compound bind to the NMDA receptor and possess neuroprotective properties. A ranking of 6aS trans cannabinoids based on their NMDA receptor binding affinity and by using a variety of calculated properties included in a fully computerized expert system has been attempted. The results of the study indicate that either the present isosteric-isoelectronic-based ranking criteria is not adequate to reproduce NMDA receptor binding or that some other members of the series rather than dexanabinol are the true lead compounds of 6aS-trans cannabinoids.
Beam-Steering SIW Leaky-Wave Subarray With Flat-Topped Footprint for 5G Applications

A novel double-layered vertically stacked substrate integrated waveguide leaky-wave antenna (SIW LWA) is presented. An array of vias on the narrow wall produces leakage through excitation of TE10 fast-wave mode of the waveguide. Attenuation and phase constants of the leaky mode are controlled independently to obtain desired pattern in the elevation. In the azimuth, top and bottom layers radiate independently, producing symmetrically located beams on both sides of broadside. A new near-field analysis of single LWA is performed to determine wavenumbers and as a way to anticipate radiation characteristics of the dual layer antenna. In addition to frequency beam steering in the elevation plane, this novel topology also offers flexibility for multispot illumination of the azimuth plane with flat-topped beams at every ${\varphi }$ -cut through excitation of each layer separately or both antennas simultaneously. It is shown that the proposed antenna solution is a qualified candidate for 5G base station antenna (BSA) applications due to its capability of interference mitigation and latency reduction. Moreover, from the point of view of highly reliable connectivity, users can enjoy seamless mobility through the provided spatial diversity. A 15-GHz prototype has been fabricated and tested. Measured results are in good agreement with those of simulations.
Prevention of cartilage degeneration and gait asymmetry by lubricin tribosupplementation in the rat following anterior cruciate ligament transection.

OBJECTIVE To investigate whether cartilage degeneration is prevented or minimized in a rat model of anterior cruciate ligament (ACL) injury following a single dose-escalated intraarticular injection of lubricin derived from human synoviocytes in culture. METHODS Unilateral ACL transection (ACLT) of the right hind limb was performed in Lewis rats (n = 56). Control animals underwent a capsulotomy alone, leaving the ACL intact (n = 11). Intraarticular injections (50 μl/injection) of phosphate buffered saline (PBS; n = 14 rats) and human synoviocyte lubricin (1,600 μg/ml; n = 14 rats) were performed on day 7 postsurgery. Animals were killed on day 70 postsurgery. Histologic specimens were immunoprobed for lubricin and sulfated glycosaminoglycans. Urinary C-telopeptide of type II collagen (CTX-II) levels were measured on days 35 and 70 postsurgery. Hind limb maximum applied force was determined using a variable resistor walkway to monitor quadruped gait asymmetries. RESULTS Increased immunostaining for lubricin in the superficial zone and on the surface of cartilage was observed in lubricin-treated and control animals but not in PBS-treated or untreated animals with ACLT. On days 35 and 70 after surgery, urinary CTX-II levels in human synoviocyte lubricin-treated animals were lower than in untreated and PBS-treated animals (P < 0.005 and P < 0.001, respectively). Animals with ACLT treated with human synoviocyte lubricin and control animals distributed their weight equally between hind limbs compared to PBS-treated or untreated animals (P < 0.01). CONCLUSION Our findings indicate that a single intraarticular injection of concentrated lubricin following ACLT reduces type II collagen degradation and improves weight bearing in the affected rat joint. These findings support the practice of tribosupplementation with lubricin for retarding cartilage degeneration and possibly the development of posttraumatic osteoarthritis.
Polarization-based interference mitigation for OFDM signals in channels with polarization mode dispersion

A dual-polarized antenna architecture is used in channels exhibiting polarization mode dispersion to investigate polarization-based interference suppression. In a wireless experiment, orthogonal frequency division multiplexing (OFDM) signals are transmitted from a slant-45deg polarized antenna and received with a dual-polarized antenna. The vertical (V) and horizontal (H) received complex baseband samples are corrupted by synthesized broadband interference with arbitrary polarization. Channel estimates are formed for each subcarrier of the received OFDM signal and minimum mean-squared error (MMSE) weights are computed to maximize the signal to interference plus noise ratio (SINR) with a single interferer. We find that this sub-band processing approach improves the performance relative to full-band processing because of the polarization mode dispersion found in a typical wireless channel.
SALIVARY GLAND TUMORS IN MAHARAJ NAKORN CHIANG MAI HOSPITAL: A RETROSPECTIVE STUDY OF 198 CASES

Introduction The incidence of salivary gland tumors is claimed to be influenced by geographical and racial factors; however there is no epidemiological study of salivary gland tumors in Maharaj Nakorn Chiang Mai Hospital, Thailand. Objective To study the frequency of salivary gland tumors in Maharaj Nakorn Chiang Mai Hospital, Thailand. Materials and methods The histological diagnoses of 198 salivary gland tumors diagnosed in the Department of Pathology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand, from 2000 to 2004 were re-evaluated based on the 2005 World Health Organization classification of salivary gland tumors. Results Of the total 198 cases, 180 (90.90%), and 18 (9.10%) were primary and other tumors, respectively. Among the primary tumor group, 104 cases (57.78%) were female and 76 (42.22%) male. The age ranged from 2 to 90 (mean = 49.26±16.11) years. The sites of involvement included parotid gland (n=141, 80.11%), submandibular gland (n=27, 15.34%), sublingual gland (n=2, 1.14%), and minor salivary glands (n=6, 3.41%). There were 131 (72.78%) benign and 49 (27.22%) malignant cases. The four common tumors were pleomorphic adenoma (n=84, 46.67%), Warthin tumor (n=38, 21.11%), adenoid cystic carcinoma (n=18, 10.00%), and mucoepidermoid carcinoma (n=15, 8.33%). Conclusion The findings of this study were more or less similar to those in the literature. Interesting features were the distinctively high frequencies of Warthin tumor and adenoid