Miracle-dz/UniFAR-FTUs huggingface dataset:
A triple bands printed inverted-F antenna for mobile RF energy scavenging

In this paper, we present a planar inverted-F antenna (PIFA) that effectively radiates at three frequency bands to extract power from ambient radio waves for energy scavenging. The proposed PIFA has its operation in the wireless communication bands of GSM 900, DCS 1800 and Wi-Fi 2.4GHz, yet it only occupies a small printed area of 20×40 mm2 on the system circuit board. Such small size with appreciable gain across the band make proposed antenna suitable for compact mobile RF energy scavenging systems.
Vitamin B12 deficiency in children and adolescents.

vitamin enters the portal circulation bound to transcobalamin II, which transports vitamin B12 to tissues. 7 Vitamin B12 is secreted in bile and reabsorbed in the ileum, conserving B12 in individuals with normal absorption. Although the adult recommended dietary allowance for vitamin B12 is 2.4 μg/d, an adult stores about 2 to 3 mg (primarily in the liver). 6 Therefore several years of dietary deficiency are usually necessary before the condition is clinically apparent.
Unnecessary surgery.

The extent of unnecessary surgery has been the object of considerable speculation and occasional wild accusation in recent years. Most evidence of the existence of unnecessary surgery, such as information from studies of geographic variations and the results of second surgical opinion programs, is circumstantial. However, results from the few studies that have measured unnecessary surgery directly indicate that for some highly controversial operations the fraction that are unwarranted could be as high as 30 percent. Most unnecessary surgery results from physician uncertainty about the effectiveness of an operation. Elimination of this uncertainty requires more efficient production and dissemination of scientific information about clinical effectiveness. In the absence of adequate data from scientific studies, the use of a consensus of expert opinion, disseminated by means of comprehensive practice guidelines, offers the best opportunity to identify and eliminate unnecessary surgery.
Understanding the evolutionary relationship of hemagglutinin protein from influenza viruses using phylogenetic and molecular modeling studies

The existing H1N1 (2009) swine flu is pandemic in nature and is responsible for global economic losses and fatalities. Among the eight gene segments of H1N1, hemagglutinin (HA) plays a major role in the attachment of the virus to the host cell surface and entry of viral RNA into the host cell leads to infection. In this study, sequence and phylogenetic analysis of the H1N1 (2009) HA, from Mexico City along with 1952 sequences, from different subtypes of pandemic influenza A virus were studied and results showed that the closest relationship of H1N1 (2009) Mexico strain was with the H1N1 (2007) Mallard Norway strain. Analysis of secondary structures predicted from the protein sequence revealed that diminishing of alpha helixes was observed in many areas of the sequences between the years 2005 to 2010. Conversely, analysis at the structural level is necessary to critically assess the functional significance. Structural level investigation was therefore done for the above said proteins by constructing the 3D structure of these proteins through homology modeling. The models were validated and structural level similarities were evaluated through superimposition. Subsequently, docking studies were done to find the binding mode of the sialic acid (SA) with influenza HA. Molecular dynamics simulations were executed to study the interactions of SA molecule with the HA. Energetic analysis reveals that van der Waal interaction is more favorable for binding of HA with SA of the whole influenza virus. Binding pocket analysis shows that intensities of H-bond donor and acceptor are more in H1N1 (2009).
A 12-GHz Fully Integrated Cascode CMOS $LC$  VCO With $Q$-Enhancement Circuit

A fully integrated complementary metal oxide semiconductor (CMOS) cascode LC voltage controlled oscillator (VCO) with Q-enhancement technique has been designed for high frequency and low phase noise. The symmetrical cascode architecture is implemented with negative conductance circuit for improving phase noise performance in 0.18 mum CMOS technology. The measured phase noise is -110.8 dBc/Hz at the offset frequency of 1 MHz. The tuning range of 630 MHz is achieved with the control voltage from 0.6 to 1.4 V. The VCO draws 4.5 mA in a differential core circuit from 1.8 V supply.
Skin Permeation of Cacalol, Cacalone and 6-epi-Cacalone Sesquiterpenes from a Nanoemulsion

The objective of the present study was to investigate the transdermal permeation of cacalol (1) and a mixture of cacalone (2) and 6-epi-cacalone (3) in comparison with diclofenac acid (4) delivered from the same characterized nanoemulsion using Franz diffusion cells (formulae I, II and III). Results show that de Kp, J, Q24, P1 and P2 were higher for the acid diclofenac nanoemulsion than for the natural products nanoemulsions. As for the differences between the formulations I and II, with the natural products, Q24, the quantity extracted from skin and P2 were higher in the mixture of 2 and 3 nanoemulsion compared with the corresponding nanoemulsion of 1. In conclusion, the low permeability of the natural products nanoemulsions in comparison with that of diclofenac acid has the potential for development for drugs with local and systemic applications, respectively.
Do Formal Salary Systems Really Matter?

Drawing on a single large U.S. corporation's personnel records for the years 1989–93, the authors analyze an example of the kind of formal salary system used by most large firms. They find that this firm's practices were consistent with most of the important conclusions of prior empirical research on internal labor markets. The system was highly centralized, covering salary levels, salary ranges, raises, and bonuses. Supervisors had little discretion over pay other than through subjective performance ratings. The firm held fairly strictly to the salary rules, leading to observable constraints on pay for employees near the top of the salary range. These constraints, however, apparently did not impose important costs on the firm in the form of increased turnover. Although the system operated without any apparent connection to external factors, the authors conclude that it transmitted external labor market forces with little distortion.
Membrane insertion of the N-terminal α-helix of equinatoxin II, a sea anemone cytolytic toxin

Equinatoxin II (Eqt-II) is a member of the actinoporins, a unique family of cytotoxins comprising 20 kDa pore-forming proteins isolated from sea anemones. Actinoporins bind preferentially to lipid membranes containing sphingomyelin, and create cation-selective pores by oligomerization of three to four monomers. Previous studies have shown that regions of Eqt-II crucial for its cytolytic mechanism are an exposed aromatic cluster and the N-terminal region containing an amphipathic α-helix. In the present study, we have investigated the transfer of the N-terminal α-helix into the lipid membrane by the use of three mutants containing an additional tryptophan residue in different positions within the amphipathic α-helix (Ile18→Trp, Val22→Trp and Ala25→Trp). The interaction of the mutants with different model systems, such as lipid monolayers, erythrocytes and ghost membranes, was extensively characterized. Intrinsic fluorescence measurements and the use of vesicles containing brominated phospholipids indicated a deep localization of the N-terminal amphipathic helix in the lipid bilayer, except for the case of Val22→Trp. This mutant is stabilized in a state immediately prior to final pore formation. The introduction of additional tryptophan residues in the sequence of Eqt-II has proved to be a suitable approach to monitor the new environments that surround defined regions of the molecule upon membrane interaction.
Comparison of Impulsive and Compliant Contact Models for Impact Analysis in Biomechanical Multibody Systems

Two approaches are used when studying impact problems: impulsive ones and compliant ones. In an impulsive approach, the time interval where the collision takes place is considered to be negligible, and so the system configuration is assumed to be constant. The final mechanical state of the colliding system is obtained directly from the initial one through algebraic equations and energy dissipation assumptions. In a compliant approach, the colliding surfaces are modelled through springs and dampers (usually nonlinear), and the equations of motion are integrated during the impact time interval to obtain the final state. Though both approaches have been widely used in the field of biomechanics, no comparative study can be found in the literature that could justify choosing one or another. In this paper, we present both approaches and compare them when applied to two examples related to gait problems: a passive walker and a simple model of crutch locomotion. We will show that the results are really close whenever nonsliding conditions are assumed at the impact points.
Heuristic search-based approach for automated test data generation: a survey

The complexity of software has been increasing in the past few years, and software testing as a most intensive factor is becoming more and more expensive. Testing costs often account for up to 50% of the total expense of software project development; hence any techniques leading to the automatic test data generation will have great potential to substantially reduce these costs. Existing approaches of automatic test data generation have achieved some success by using heuristic search-based approach, but they are not summarised. In this paper we presented a survey on heuristic search-based approach, i.e., genetic algorithm for automated test data generation. We summarise the work done by researchers those who have applied the concept of heuristic search-based approach for test data generation. The main objective of this paper is to acquire the concepts related to heuristic search-based approach for automated test data generation and moreover the use of heuristic search-based approach fascinated by the fact that many of the testing problems can be formulated as search problem. We also provide constructive guidelines for future research for automated test data generation.
Superantigen staphylococcal enterotoxin C1 inhibits the growth of bladder cancer

Superantigens can induce cell-mediated cytotoxicity preferentially against MHC II-positive target cells with large amounts of inflammatory cytokines releasing. In this study, superantigen staphylococcal enterotoxin C (SEC) 1 was investigated to evaluate its potential in bladder cancer immunotherapy in vitro and in vivo. Our results revealed that SEC1 could stimulate the proliferation of human peripheral blood mononuclear cells (PBMCs) in a dose-dependent manner, accompanied with the release of interleukin-2, interferon-γ, and tumor necrosis factor-α, and increased the population of CD4+ T cells and CD8+ T cells. PBMCs stimulated by SEC1 could initiate significant cytotoxicity towards human bladder cancer cells in vitro. The results of in vivo antitumor experiment indicated that SEC1 could decrease the rate of tumor formation and prolong the survival time of tumor-bearing mice. Our study demonstrated that SEC1 inhibited the growth of bladder cancer. And it is also suggested that SEC1 may become a candidate for bladder cancer immunotherapy.
Overview of Chlamydia trachomatis infection and the requirements for a vaccine.

Chlamydia trachomatis is an important human pathogen. The development of vaccines designed to prevent C. trachomatis-associated morbidity would be highly desirable. In the developing world the major goal is the prevention of blindness due to trachoma; in industrialized societies and in some developing countries, the major goal is the prevention of chlamydial salpingitis and its consequences. In early trials of trachoma vaccine composed of a suspension of elementary bodies (the infectious particles), short-lived protective immunity was induced, but deleterious effects, i.e., hyperreactivity to infection, were also noted. Thus it is likely that separation of the protective from the sensitizing antigens and the development of a subunit vaccine will be necessary. Chlamydial virulence factors include the surface structures (presumably antigenic) that are responsible for specific attachment of the organism to a susceptible host cell, induction of phagocytosis by the host cell, or inhibition of phagolysosomal fusion. Serotype-specific neutralizing antigens might also be candidate antigens. Purification of such subunit antigens from chlamydial particles is probably impractical. It is likely that genetic engineering will be required for the production of cloned antigens after such antigens have been identified.
Distributed Generation Impacts on Electric Distribution Systems Reliability: Sensitivity Analysis

Recent developments in the electric power and power supply industries have raised a great deal of interest in distributed power generation (DG). DG will have impacts on distribution networks. In this paper, modelling of DGs in reliability assessment and computing of related indices such as SAIFI, SAIDI, CAIDI is introduced. Using model development and case studies it is discussed and shown that location and numbers of DGs effect in distribution reliability indices
Human herpesviruses 6 and 7 as potential pathogens after liver transplant: Prospective comparison with the effect of cytomegalovirus

Because cytomegalovirus (CMV) is an important opportunistic infection after liver transplant, we conducted a prospective study to see if the same applied to human herpesviruses (HHV)‐6 and ‐7. We used polymerase chain reaction (PCR) methods optimised to detect active, not latent, infection and studied patients not receiving antiviral prophylaxis for CMV. Post‐transplant, 536 blood samples were tested by PCR (median 7; range 4–50). Active infection with CMV was detected in 28/60 (47%), HHV‐6 in 19/60 (32%), and HHV‐7 in 29/60 (48%) of patients. The PCR‐positive samples were tested by quantitative‐competitive PCR to measure the virus load of each betaherpesvirus. The median peak virus load for CMV was significantly greater than that for HHV‐6 or HHV‐7. Detailed clinicopathological analyses for the whole population showed that CMV and HHV‐6 were each significantly associated with biopsy‐proven graft rejection. Individual case histories suggested that HHV‐6 and HHV‐7 may be the cause of some episodes of hepatitis and pyrexia. It is concluded that HHV‐6 is a previously unrecognized contributor to the morbidity of liver transplantation, that HHV‐7 may also be important and that both viruses should be included in the differential diagnosis of graft dysfunction. J. Med. Virol. 59:496–501, 1999. © 1999 Wiley‐Liss, Inc.
Comparison of the Complex Valued and Real Valued Neural Networks Trained with Gradient Descent and Random Search Algorithms

Complex Valued Neural Network is one of the open topics in the machine learning society. In this paper we will try to go through the problems of the complex valued neural networks gradients computations by combining the global and local optimization algorithms. The outcome of the current research is the combined global-local algorithm for training the complex valued feed forward neural network which is appropriate for the considered chaotic problem.
The design of multi-frequency combiner based on common cavity

This paper introduces a design method of multi-frequency combiner based on common cavity. It comes from the dualband filter structure with a common cavity, which is based on the General Chebyshev filter. The key to this method is to get the normalized capacitance c0 of the common cavity and coupling coefficients of the multi-frequency combiner. And writing a matlab program can make it easier to get the parameters we need. Using a common cavity to realize multi-frequency combiner cannot only reduce the amount of taps, but also can make the intermodulation better. In order to verify the method described, a multi-frequency combiner is introduced, whose test result is in conformity with the simulation results, which verifies the correctness and superiority of the proposed method.
Multicentre audit of death from acute pancreatitis

patients. Using Hospital Activity Analysis code 577.0, all fatal cases of acute pancreatitis were studied in a 6-year period between 1987 and 1993. Additionall , all post-mortem diagnoses of acute pancreatitis were traced: All available records, radiological and biochemical data were studied and appropriate information was recorded and analysed. Sixty-five fatal cases were studied from a total number of 670 patients admitted with acute pancreatitis over the same period. Only 15 per cent were post-mortem diagnoses, a lower proportion than in previous series. Some 72 per cent had respiratory and 67 per cent renal complications. Only 34 per cent had been admitted to intensive care. A total of 32 per cent had operations, two-thirds of which were some form of external drainage. Of the 14 patients with proven gallstone pancreatitis only three underwent endoscopic retrograde cholangiopancreatography. Overall 42 per cent of patients had idiopathic disease. Not all patients diagnosed before death had the full biochemical criteria of predicted severity analysed determinations were performed in about 80 per cent. Premortem diagnosis of a fatal outcome was achieved more frequently than in previous series in both our study and that of Mann et al. However, both series indicate that there are widespread variations and omissions in the management of this potentially fatal condition’. The wav forward may be to issue standard national teaching hospitals with a catchment pop 2 ation of about 7500iO
Origin of Peripheral Blood Macrophages in Bursa‐Cell‐Reconstituted Chickens

MHC class‐I antigens on peripheral blood macrophages and bursa cells were analysed after adoptive bursa cell transfer to cyclophosphamide‐treated immunodeficient chickens. We studied the expression of B‐F locus‐encoded antigens (B‐F is homologous to mouse H‐2K, D) on macrophages and B cells and found that macrophage B‐F antigens are of host origin, whereas bursa cells express only donor‐type B‐F antigens. Both syngeneic and allogeneic bursa cells restored IgM antibody production to a T‐cell‐independent antigen, Brucella, but only syngeneic bursa cells could restore the IgG antibody response to a thymus‐dependent antigen, sheep erythrocytes. The results indicate that B‐cell maturation and macrophage‐B‐cell interaction are not MHC‐restricted but that a restriction exists in T‐cell‐B‐cell collaboration.
Update on selected inherited venous thrombotic disorders

The inherited thrombophilias are a group of inherited conditions that predispose to thrombotic events. Most of the inherited thrombotic disorders are associated with venous thromboembolism rather than arterial thrombosis. Frequently, one or more predisposing genetic factors and/or environmental risk factor are identified in thrombosis patients. Significant advances in the identification of etiologies of inherited thrombosis have recently been reported. The most common inherited thrombotic disorders include activated protein C (APC) resistance (factor V Leiden), hyperhomocysteinemia, the prothrombin gene variant G20210A, elevated factor VIII levels, and deficiencies of thrombomodulin, protein C, protein S, and antithrombin. Less well characterized disorders include elevated factor IX, X, and XI levels. Recognition of these disorders now permits a laboratory diagnosis in approximately 70% of patients being evaluated for inherited thrombosis. This review focuses on the clinical and laboratory aspects of some of the most common inherited venous thrombotic disorders, including APC resistance, hyperhomocysteinemia, the prothrombin G20210A mutation, and elevated coagulation factor levels. Am. J. Hematol. 68:256–268, 2001. © 2001 Wiley‐Liss, Inc.
On-board fabrication of multi-channel polymer optical waveguide with graded-index cores by soft-lithography

We succeeded in utilizing the soft-lithography method for fabricating a polymer waveguide with GI cores directly on a substrate. A UV-curable polymer (TPIR-202) supplied from Tokyo Ohka Kogyo Co. Ltd. is used to form the matrix of polymer waveguide. The GI cores are formed during the curing process of the core region, which is similar to the preform process we have reported. We experimentally confirm that near parabolic refractive index profiles were formed in the parallel cores (8 to 16 channels) with 80 um × 80 um size at 250-μm pitch. Although the loss is still as high as 0.2 ~ 0.3 dB/cm at 850 nm, which is mainly due to scattering loss inherent to the polymer matrix, the scattering loss attributed to the waveguide's structural irregularity could be sufficiently reduced by a graded refractive index profile. For comparison, we fabricate SI-core waveguides with the same materials by means of the same process. Then, we evaluate the inter-channel crosstalk in SI- and GI-core waveguides under almost the same conditions. It is noteworthy that remarkable crosstalk reduction (5 dB and beyond) is confirmed in the GI-core waveguides, since the propagating modes in GI-cores are tightly confined near the core center and less optical power is found near the core cladding boundary. This significant improvement in the inter-channel crosstalk allows the GI-core waveguides to be utilized for extra high-density on-board optical interconnections.
A possible role of IL-23-producing cells in a patient with psoriasiform drug eruption due to tazobactam and piperacillin hydrate: a case study and literature review

The combination of piperacillin and tazobactam (TAZ/PIPC) is a novel antibiotic drug, which reduces drug resistance [1] and has a strong anti-bacterial effect against severe infection. While diarrhoea and vomiting have been reported to be frequent as adverse events of TAZ/PIPC, cutaneous side effects have also been rarely reported, such as acute generalized exanthematous pustulosis (AGEP) [2]. Herein, we report the first case of TAZ/PIPC-related psoriasiform drug eruption, as an unusual cutaneous [. ]