Miracle-dz/UniFAR-FTUs huggingface dataset:
Comments on ‘Neuroprotective effects of melatonin and omega-3 on hippocampal cells prenatally exposed to 900 MHz electromagnetic fields’

With great interest, we read the article by Erdem Koç et al. (2016) which evaluated the effect of prenatal exposure to 900MHz electromagnetic fields (EMF) on the rat hippocampus at the histopathological and stereological levels and investigated the neuroprotective effects of melatonin and omega-3 on the rat hippocampal regions. They showed a significant decrease in hippocampal neuron numbers following EMF exposure and therefore confirmed the neuroprotective effects of melatonin and omega-3. Over the past several years, our research team has conducted several studies on the possible association of mobile phone use with radiofrequency electromagnetic radiation-induced health hazards such as CNS disorders or endocrine problems (Mortazavi et al. 2007, 2011, 2012, 2015; Movvahedi et al. 2014). Despite its challenging theme, the paper by Erdem Koç et al. had some shortcomings. Its first basic shortcoming came from the point that the authors had not provided any information about the model of the EMF meter used in their study. They stated: ‘The power density measurements were made using an EMF meter (Holaday Industry Inc., Adapazari, Turkey)’. Although Holaday EMF meters are well-known, we could not find any information about ‘Holaday Industry Inc., Adapazari, Turkey’ and its EMF meters. In this light, as the model and hence its specifications are not known, this study was not reproducible. Furthermore, instead of calculating the specific absorption rate [SAR] inside the animals’ bodies, the authors only reported the peak SAR (2 W/kg), which was reported in another study (Ulubay et al. 2015). It is worth noting that due to some differences between the studies conducted by Erdem Koç et al. and Ulubay et al., the peak SARs and average power densities of these studies cannot be exactly the same. The third shortcoming of this study was due to different exposure times in their groups (11:00–12:00 h in one group, 12:00–13:00 and 13:00–14:00 h in other groups). Therefore, the findings of this study could be simply affected by circadian rhythms that are regulated by daily variations in melatonin levels (Quintana et al. 2016; Scarabelot et al. 2016). Furthermore, real antennas are not isotropic radiators. Authors have claimed that “The generator was connected to a one-monopole antenna, thus allowing simultaneous exposure of six animals”. In this light, if the authors had changed the position of rats every 10 minutes, identical exposure of all 6 rats could have been guaranteed.
Computing phase noise eigenfunctions directly from harmonic balance/shooting matrices

A prerequisite for computing phase noise is finding the Perturbation Projection Vector (PPV), a periodic vector function that encapsulates the "transfer function" between individual noise sources and the phase noise of the oscillator. In this paper, we illustrate a novel technique for calculating the PPV that has several advantages over the monodromy matrix method currently used. The new method can be applied in the context of both frequency- and time-domain steady-state computations, and involves only a single linear solution of the appropriate Jacobian matrix. It also removes the need for applying heuristics in choosing the correct PPV from a potentially large set of choices, a feature particularly useful for high-Q oscillators. We compare PPVs obtained with the new method with those from the monodromy matrix method.
The evolution of Spanish clitic climbing: A corpus‐based approach

ISSN: 0039-3274 (Print) 1651-2308 (Online) Journal homepage: https://www.tandfonline. com/loi/snec20 The evolution of Spanish clitic climbing: A corpus‐based approach Mark Davies To cite this article: Mark Davies (1997) The evolution of Spanish clitic climbing: A corpus‐based approach, Studia Neophilologica, 69:2, 251-263, DOI: 10.1080/00393279708588211 To link to this article: https://doi.org/10.1080/00393279708588211
Properties of Arsenite Efflux Permeases (Acr3) from Alkaliphilus metalliredigens and Corynebacterium glutamicum*

Members of the Acr3 family of arsenite permeases confer resistance to trivalent arsenic by extrusion from cells, with members in every phylogenetic domain. In this study bacterial Acr3 homologues from Alkaliphilus metalliredigens and Corynebacterium glutamicum were cloned and expressed in Esch e richia coli. Modification of a single cysteine residue that is conserved in all analyzed Acr3 homologues resulted in loss of transport activity, indicating that it plays a role in Acr3 function. The results of treatment with thiol reagents suggested that the conserved cysteine is located in a hydrophobic region of the permease. A scanning cysteine accessibility method was used to show that Acr3 has 10 transmembrane segments, and the conserved cysteine would be predicted to be in the fourth transmembrane segment.
Calculation of the QCD phase diagram at finite temperature, and baryon and isospin chemical potentials

We study the phases of a two-flavor Nambu\char21{}Jona-Lasinio model at finite temperature T, and baryon and isospin chemical potentials ${\ensuremath{\mu}}_{B}=({\ensuremath{\mu}}_{u}+{\ensuremath{\mu}}_{d})/2,$ ${\ensuremath{\mu}}_{I}=({\ensuremath{\mu}}_{u}\ensuremath{-}{\ensuremath{\mu}}_{d})/2. $ This study completes a previous analysis where only small isospin chemical potentials ${\ensuremath{\mu}}_{I}$ were considered.
A new algorithm for energy-efficient IEEE 802.11 access points

In this paper, we propose a novel algorithm for increasing energy efficiency of individual IEEE 802.11 WAPs (Wi-Fi Access Points). The algorithm is trained based on monitoring Traffic Flow, Clients/Subscribers Flow and RF coverage map Flow, using cross-correlation to determine the optimal Traffic Level Filling by WAPs during the observed time period. WAPs are managed by central monitoring system to increase the energy efficiency. The proposed algorithm enables a significant percentage increase in energy efficiency for IEEE 802.11 WAPs systems.
Complex Event Processing to detect congestions in mobile network

With a wide spread of smartphones and tablets, a mobile network becomes frequently congested when many users concentrate to the same place. Especially when a large-scale event is held, a heavy network congestion interferes with the communication of the participants as well as local residents. In order to detect the network congestion, a large amount of traffic log should be analyzed in real time. In this paper, the proposed system attempts to detect a sign of the congestion by using a CEP (Complex Event Processing). First, by analyzing network status when the large-scale event, Nagaoka Fireworks festival, is held, it is observed that the network congestion can be effectively detected from the combination of (1) the RTT, (2) the specific type of TCP session termination (FTN-No-ACK) and (3) the number of retransmission packets. Next, we develop our proposed congestion detection system by using a CEP for detecting these metric in real-time. Through the experimental evaluation, it is concluded that the proposed system can scalably analyze a large amount of traffic log in real-time.
The Sustainable Development of Kuwaiti Sabkhas

“Sabkha” is an Arabic term commonly used in foreign languages to denote a salt flat, a shallow depression. Sabkhas normally occur near sea level or at the underground water level. They usually are encrusted with a salt crust layer, the thickness of which depends on the location of the sabkhas and the evaporation rate. Sabkhas are one of the prominent surface topographical features in the Kuwaiti coastal zone, occupying an area of about 769.4 km2, equivalent to 4.3 percent of the nation's total area. Due to their presence in the most important locations near the coastline, they are a most suitable setting for exploitative human activities. Sabkhas have attracted development proponents, particularly after the increased economic growth, and urgent need for homes and housing facilities. The most significant developments in the sabkha lands are urban development, agricultural forestation, and nature reserves. This study has revealed that there are environmental hazards related to the use of sabkha lands, including salt weathering, soil salinization, tree damage and depletion of natural reserves, the deterioration of nebakha (formation and growth around plants in the desert where groundwater is available for vegetation; the usual dune forms that occur in such instances are isolated mounds around individual plants) fields, and semikarstic (an area of irregular limestone in which erosion has produced fissures, sinkholes, underground streams, and caverns) solution holes. Therefore, use of such lands should take into account scientific investigation and selection among the different development fields. Such a fragile environment obliges us to consider nature conservation, a non-disruption or depletion of sabkhas' limited natural resources, and their environmental components. The concept of the sustainable development should prevail in the use of such sabkhas.
Balanced Switching Schemes for Gradient-Error Compensation in Current-Steering DACs

This paper introduces balanced switching schemes to compensate linear and quadratic gradient errors, in the unary current source array of a current-steering digital-to-analog converter (DAC). A novel algorithm is proposed to avoid the accumulation of gradient errors, yielding much less integral nonlinearities (INLs) than conventional switching schemes. Switching scheme examples with different number of current cells are also exhibited in this paper, including symmetric arrays and nonsymmetric arrays in round and square outlines. (a) For symmetric arrays where each cell is divided into two parallel concentric ones, the simulated INL of the proposed round/square switching scheme is less than 25%/40% of conventional switching schemes, respectively. Such improvement is achieved by the cancelation of linear errors and the reduction of accumulated quadratic errors to near the absolute lower bound, using the proposed balanced algorithm. (b) For non-symmetric arrays, i.e. arrays where cells are not divided into parallel ones, linear errors cannot be canceled, and the accumulated INL varies with different quadratic error distribution centers. In this case, the proposed algorithm strictly controls the accumulation of quadratic gradient errors, and different from the algorithm in symmetric arrays, linear errors are also strictly controlled in two orthogonal directions simultaneously. Therefore, the INLs of the proposed non-symmetric switching schemes are less than 64% of conventional switching schemes. key words: digital-to-analog converter, gradient errors, nonlinearity, switching scheme, the integral nonlinearity
IMRT combined with concurrent chemotherapy plus adjuvant chemotherapy versus IMRT combined with concurrent chemotherapy alone in patients with nasopharyngeal carcinoma

Purpose To evaluate the efficacy of IMRT combined with concurrent chemotherapy followed by adjuvant chemotherapy compared with IMRT combined with concurrent chemotherapy alone in patients with nasopharyngeal carcinoma. Methods From January 2007 to December 2014, we collected 797 staged II-IVb [UICC = Union for International Cancer Control criteria (7th edition)] NPC patients for analysis. After 1:1 matching,we selected 261 cases as the CCRT group, another 261 patients as the CCRT+AC group. Using Kaplan-Meier to calculate the overall survival (OS), locoregional failure-free survival(LFFS), distant metastasis failure-free survival(DMFS). The log-rank test and Cox-proportional hazards model to evaluate the prognostic factors. Results After matching, there were 261 patients in each group. In CCRT+AC group, The 1-,2- and 3- year os rates were a little higher than in CCRT group(99.6% vs 97.9%,97.4% vs 96.2%,93.8% vs 86.9%, P = 0.150). There were no significant difference in 1-,2-,3- year OS, LFFS, DMFS between the two groups. In subgroup analysis, a little higher OS rate in CCRT+AC group for staged III, IV and T4(III:100% vs 100%, 97.6% vs 95.8%, 94.0% vs 84.0%; IV: 99.1% vs 95.4%, 96.3% vs 95.4%, 90.5% vs 79.4%, P = 0.047;T4:99.1% vs 95.2%, 97.1% vs 95.2%, 90.9% vs 78.2%, P = 0.055). No significant difference were observed in OS, LFFS,DMFS between the groups. Conclusion IMRT combined with concurrent chemotherapy followed by adjuvant chemotherapy might improved 1-,2-,3- year of OS. Whether or not add adjuvant chemotherapy it had similar LFFS rate and DMFS rate in patients with nasopharyngeal carcinoma. Locally advanced NPC patients (III, IV and T4)might benefit from the adjuvant chemotherapy.
Aldose reductase inhibition effect of phenolic compounds isolated from Paulownia coreana bark.

Nine compounds, caffeic acid, naringenin, apigenin, luteolin, kaempferol, verbascoside, isoverbascoside, isocampneoside II, and cistanoside F, were isolated from the EtOAc and n-BuOH fractions of P. coreana bark. The structures of these compounds (1-9) were elucidated by spectroscopic methods and literature data. All the isolates were subjected to in vitro bioassay to evaluate their inhibitory activity against rat lens aldose reductase. Among these, compounds 6 and 8 indicated the significant inhibitory activity on rat lens aldose reductase with values of 2.67 and 5.59 , respectively. Especially, The inhibition activity of acteoside was 3.9 times better than that of quercetin as a positive control (10.6 ). These results suggested that phenylethanoid glycosides are likely to be the potential compounds for the prevention and/or treatment of diabetic complications.
Protein substrate conformation and proteolysis.

vailing in the absence of the stabiliziing influence. Similarly, if the shift involves no gross change in the internal organization of the molecule, optical rotatory dispersion measurements will not disclose significant differences. Sufficient sensitivity, however, cain be expected from methods which depend on the state of localized areas in the molecule. The method chosen in this study was the measurement of the rate of proteolytic cleavage of peptide bonds. It is understood, of course, that this method is unable to define any particular conformation; it merely detects conformation changes. That it can be a highly sensitive tool for this purpose will be shown by the demonstration that it canr detect conformation changes which accompany the reversible binding of a single small-molecular ligand to a protein molecule. Decreased proteolytic digestibility of some proteins in the presence of smallmolecular ligands has been repeatedly observed in the past. Thus, serum albumin was found less digestible by trypsin in the presence of Ca++ and Mn++ ions,2 and similarly, the tryptic digestibility of conalbumin and ferritin was diminished when in combination with iron. ^ 4 Increased resistance against proteolytic digestion of serum albumin in the presence of anionic detergents5 6 and of fatty acid anions7 was also reported. Several instances of increased resistance against proteolysis of enzymes in the presence of substrates, or cofactors, have been described.8 9 Greatly diminished digestibility of purified rabbit antibody in the presence of homologous hapten has recently been observed in this laboratory. '? In the present communication we report that reversible combination of serum albumin with a given smallmolecular ligand markedly reduces the digestibility of the protein by a variety of proteolytic enzymes of different specificity; it is concluded that the effect cannot be due to direct shielding of susceptible bonds by the ligand molecules, but to a transformation which may involve the entire protein molecule. Based on these observations, a suggestion is made concerning the mechanism of proteolysis. Materials and Methods. -Human serum albumin (Cutter) was deionized by passage through an Amberlite MB-3* mixed-bed resin column and exhaustively dialyzed against distilled water. Acylated human serum albumin (HSAp) was prepared by treating 100 ml of a 1% solution of HSA in water with 0.3 ml of lauroyl chloride contained in 10 ml of benzene. The solution was stirred at 25? for 5 hr and the pH was held at 9 by frequent addition of 0.1 N NaOH. After centrifugation for the removal of the organic phase and a slight amount of precipitate, the solution was dialyzed against water and subsequently pervaporated to yield a 5% protein solution. The proteolytic enzymes used were the following: trypsin (Worthington, twice crystallized), a253
Adaptive PD controller for robot manipulators

Referring to the point-to-point control problem, a proportional and derivative (PD) control algorithm is presented that is adaptive with respect to the gravity parameters of robot manipulators. The proposed controller is shown to be globally convergent. Following the same approach, an application to the tracking problem is also presented. Simulation tests are included, with reference to a robot having three degrees of freedom. These tests show that the performances of the adaptive PD controller are scarcely influenced by the initial error. >
Periodontitis y su correlación con la glucemia en pacientes de la Clínica de Endoperiodontología de la FES Iztacala

La diabetes es una condicion importante por su alta prevalencia entre la poblacion mundial. Diversas investigaciones muestran la estrecha interrelacion entre esta condicion y la enfermedad periodontal. Los objetivos de este trabajo fueron establecer la correlacion entre la periodontitis y la glucemia, asi como la prevalencia de diabetes en los pacientes que acudieron a la Clinica de Especializacion en Endoperiodontologia de la FES Iztacala, durante el periodo de noviembre de 2003 a junio de 2004. Se obtuvo la glucemia de 157 sujetos, utilizando el dispositivo Accutrend GCT, (Roche- Sintex) y las mediciones de la profundidad al sondeo, mediante la sonda periodontal de la OMS. La prevalencia de diabetes fue de 22.29%. Se aplico el coeficiente de correlacion de Pearson entre las profundidades al sondeo por sextante y las cifras de glucosa, obteniendose correlacion positiva muy debil en dos sextantes y negativa muy debil en cuatro sextantes. Se concluyo que en estos sujetos la glucemia elevada afecto mas la prevalencia de periodontitis que su gravedad o extension
A Prospective Comparison of Simultaneous Kidney–Pancreas Transplantation With Systemic-Enteric Versus Portal-Enteric Drainage

ObjectiveTo compare pancreas transplantation with systemic-enteric (SE) versus portal-enteric (PE) drainage in a prospective fashion. Summary Background DataTo improve the physiology of pancreas transplantation, the authors developed a new technique of portal venous delivery of insulin and enteric drainage of the exocrine secretions. MethodsDuring a 26-month period, the authors prospectively alternated 54 consecutive simultaneous kidney and pancreas transplants to either SE (n = 27) or PE (n = 27) drainage. The two groups were well matched for numerous characteristics. Maintenance immunosuppression in both groups consisted of tacrolimus, mycophenolate mofetil, and steroids. ResultsPatient survival rates were 93% SE versus 96% PE; kidney graft survival rates were 93% in both groups. Pancreas transplantation survival (complete insulin independence) was 74% after SE versus 85% after PE drainage with a mean follow-up of 17 months. The mean length of initial hospital stay was 12.4 days in the SE group and 12.8 days in the PE group. The SE group was characterized by a slight increase in the number of readmissions. The incidences of acute rejection (33%) and major infection (52%) were similar in both groups. The incidence of intraabdominal infection was slightly higher in the SE group. However, the early relaparotomy rate was similar between groups. The composite endpoint of no rejection, graft loss, or death was attained in 56% of SE versus 59% of PE patients. ConclusionsThese results suggest that simultaneous kidney and pancreas transplantation with SE or PE drainage can be performed with comparable short-term outcomes.
DCT Based SPIHT Architecture for Hyperspectral Image Data Compression

of the Thesis DCT Based SPIHT Architecture for Hyperspectral Image Data Compression by Jieming Xu Master of Science in Electrical and Computer Engineering Northeastern University, August 2016 Prof. Vinay K. Ingle, Adviser The wavelet transformation is leading and widely used technology in transform coding. Many coding algorithms are designed for this transformation based on its unique structure, such as EZW, SPIHT and SPECK. The correlation between each subbands naturally generates a special tree structure in the whole image. With bitplane and entropy coding technique, the compression ratio can be achieved at a very high value. In this thesis, we focus on the traditional discrete cosine transform (DCT) to design our compression system. After analyzing the performance of the SPIHT algorithm, we found that, the coefficients’ arrangement in DCT still has the features similar to these in wavelet transform and these features are vital to maximize the performance of SPIHT algorithm. For realistic implementation, a large hyperspectral data cube must be tiled into small size of code cubes for compression to achieve a fast compression speed. In JPEG standard, two applicable block sizes are give, which are 8×8 and 16×16 blocks. In our system, we extend these blocks into three-dimensional cube for hyperspectral image as 8×8×8 and 16×16×16 cubes for testing. To enhance the compression performance, PCRD algorithm is also applied in our system. Because the values in spectrum direction share very similar trajectory for each pixel, the power of several continuous bands is predictable. In this way, we optimized the PCRD algorithm for our system, and the truncation points can be chosen without calculation which saves time. Three AVIRIS hyperspectral data sets are tested. For DCT based compression, each image cube was tiled into sizes of 8×8×8 and 16×16×16 cubes for transformation and compression independently. For DWT based compression in small code cube setting, each image cube was tiled into sizes of 32×32×32 and 16×16×16 with a DWT decomposition level of five and four. For DWT compression in large code cube setting, the transformation (five levels of DWT) and compression algorithm was performed on the whole image cube in a size of 448× 448× 224. Results showed viii that, the DCT based compression with 16 × 16 × 16 code cube size has the best performance for lossy hyperspectral image compression and the bitplane arrangement is more effective for SPIHT algorithm.
Vocal tract length normalization strategy based on maximum likelihood criterion

In this paper performances of automatic speech recognition systems which use Vocal Tract Length Normalization (VTN) are presented. Beside standard procedure for VTN coefficient estimation several variants based on robust statistic methods are introduced. All systems which use VTN performed better than referent systems, while the best performance was achieved by the system in which the VTN coefficient for a particular speaker is chosen as the one with maximum sample mean of likelihoods per phoneme. Phoneme likelihoods are calculated as sample medians of feature vectors corresponding to particular phonemes. The relative improvement of performance for this system is about 20%.