gebhart/patrepeval huggingface dataset:
Predictive power estimators in CDMA closed loop power control (2002)

The estimation of signal power is considered. Methods of designing optimized and partially-optimized power estimators, based on the Wiener model, for complex-valued signals are presented. Our application is a predictive received power level estimation in closed loop transmitter power control of mobile CDMA communications systems. The proposed estimators have the benefits of guaranteed positive output, high computational efficiency as compared to quadratic filters, and providing for a predescribed prediction step, all the aspects being of great interest when applying the estimators in delay sensitive closed control loops. The user capacity of a CDMA communications system is generally found to be greatly interference limited, and thus proper power control system functioning is of paramount interest. The partially-optimized power estimators are simulated along with Heinonen-Neuvo (1988) polynomial predictors in singleand multiuser CDMA uplink closed power control loop simulators.
Portal hypertension in fulminant viral hepatitis. (1980)

The gradient between wedged and free hepatic venous pressures were measured in 10 unselected adult patients suffering from fulminant viral hepatitis. The gradient was increased in all the studied patients, ranging from 0.9 to 2.1 kPa; this finding indicates that portal hypertension was present in all these cases. Ascites was present in all the five patients having a gradient about 1.5 kPa and affected only two of the five patients having a gradient below 1.5 kPa; this observation suggests that portal hypertension plays a role in the mechanism of ascites in fulminant viral hepatitis. Portal hypertension in fulminant viral hepatitis is likely to be the consequence of an intrahepatic block due to massive necrosis of the liver cells.
DRAM-Based Intrinsic Physically Unclonable Functions for System-Level Security and Authentication (2016)

A physically unclonable function (PUF) is an irreversible probabilistic function that produces a random bit string. It is simple to implement but hard to predict and emulate. PUFs have been widely proposed as security primitives to provide device identification and authentication. In this paper, we propose a novel dynamic-memory-based PUF [dynamic RAM PUF (DRAM PUF)] for the authentication of electronic hardware systems. The DRAM PUF relies on the fact that the capacitor in the DRAM initializes to random values at startup time. Most PUF designs require custom circuits to convert unique analog characteristics into digital bits, but using our method, no extra circuitry is required to achieve a reliable 128-bit PUF. The results show that the proposed DRAM PUF provides a large number of input patterns (challenges) compared with other memory-based PUF circuits such as static RAM PUFs. Our DRAM PUFs provide highly unique PUFs with a 0.4937 average interdie Hamming distance. We also propose an enrollment algorithm to achieve highly reliable results to generate PUF identifications for system-level security. This algorithm has been validated on real DRAMs with an experimental setup to test different operating conditions.
Unbalanced deoxynucleotide pools cause mitochondrial DNA instability in thymidine phosphorylase-deficient mice (2008)

Replication and repair of DNA require equilibrated pools of deoxynucleoside triphosphate precursors. This concept has been proven by in vitro studies over many years, but in vivo models are required to demonstrate its relevance to multicellular organisms and to human diseases. Accordingly, we have generated thymidine phosphorylase (TP) and uridine phosphorylase (UP) double knockout (TP(-/-)UP(-/-)) mice, which show severe TP deficiency, increased thymidine and deoxyuridine in tissues and elevated mitochondrial deoxythymidine triphosphate. As consequences of the nucleotide pool imbalances, brains of mutant mice developed partial depletion of mtDNA, deficiencies of respiratory chain complexes and encephalopathy. These findings largely account for the pathogenesis of mitochondrial neurogastrointestinal encephalopathy (MNGIE), the first inherited human disorder of nucleoside metabolism associated with somatic DNA instability.
Chemical vapor deposition of rough-morphology silicon films over a broad temperature range (1993)

Growth of rough polycrystalline silicon films has been achieved on SiO2 surfaces over a broad temperature range (≥100 °C) using SiH4 chemical vapor deposition at low pressures (mTorr range), with smaller grain structure and roughness length scale achieved at lower temperatures. Rough morphology over a broad temperature range is attributed to the combination of nucleation-controlled initial growth (on SiO2) and domination of growth by surface reaction (cf. gas phase).
LA CRISIS ECOLÓGICO-ESPIRITUAL DEL SER HUMANO ACTUAL: APUNTES PARA UNA REFLEXIÓN DESDE LA EDUCACIÓN AMBIENTAL Y LA ECOÉTICA (2012)

Este articulo es fruto de la ponencia presentada en el X Congreso Latinoamericano de Humanidades, celebrado en Guanajuato, Mexico del 16 al 18 de Febrero del 2012 y cuyo tema fue: “Conocimiento para la gestion del desarrollo sustentable”. La ponencia es fruto de la segunda etapa del Proyecto denominado “Hombre-Naturaleza”, que se desarrollo en el marco de la linea investigativa en pedagogia perteneciente al Grupo Investigativo “Ciencia-Espiritualidad”; dicho grupo, desde sus fundamentos epistemologicos y pedagogicos, indaga por los posibles nexos entre algunas epistemologias emergentes de Occidente y los grandes metarrelatos del lejano Oriente. En este resultado final de II fase de investigacion, se coloca en confrontacion la ecoetica, ciencia emergente, frente a la problematica ecologico-espiritual del hombre contemporaneo y a la misma pedagogia para dialogar desde nuevos horizontes de sentido, entre ellos el proporcionado por la educacion ambiental.
Design of secure cryptography against the threat of power-attacks in DSP-embedded processors (2004)

Embedded wireless devices require secure high-performance cryptography in addition to low-cost and low-energy dissipation. This paper presents for the first time a design methodology for security on a VLIW complex DSP-embedded processor core. Elliptic curve cryptography is used to demonstrate the design for security methodology. Results are verified with real dynamic power measurements and show that compared to previous research a 79% improvement in performance is achieved. Modification of power traces are performed to resist simple power analysis attack with up to 39% overhead in performance, up to 49% overheads in energy dissipation, and up to 11% overhead in code size. Simple power analysis on the VLIW DSP core is shown to be more correlated to routine ordering than individual instructions. For the first time, differential power analysis results on a VLIW using real power measurements are presented. Results show that the processor instruction level parallelism and large bus size contribute in making differential power analysis attacks extremely difficult. This research is important for industry since efficient yet secure cryptography is crucial for wireless communication devices.
Memory Mapped SPM: Protecting Instruction Scratchpad Memory in Embedded Systems against Soft Errors (2012)

Predictability, energy consumption, area and reliability are the major concerns in embedded systems. Using scratchpad memories (SPMs) instead of cache memories play an increasing role to satisfy these concerns. Both cache and SPM as on-chip SRAM memories are highly vulnerable to soft errors and as they contain the most frequently used blocks of the program, their errors can easily propagate in system leading to erroneous results. Unlike the instruction cache, an error in the instruction SPM cannot be corrected using only parity bits by invalidating the erroneous line. This study suggests a low-cost mechanism to protect the instruction SPM against soft errors. The main idea underlying the proposed mechanism includes four stages: 1) to use parity codes for error detection in the SPM, 2) to keep an address matching table in the main memory to store the address of the copy of SPM blocks in the main memory, in the case of dynamic SPM, 3) to allocate a specific segment of the main memory as an SPM backup, in the case of static SPM, and 4) to recover from errors using an interrupt service routine (ISR). Compared with a single error correction /double error detection (SEC-DED) scheme, by using a 2-bit interleaved-parity per word, the proposed mechanism can correct at least three bit errors, while SEC-DED is capable of correcting only single bit error and detecting 2-bit errors. The experimental results reveal that the energy consumption and area overheads of the proposed mechanism are approximately 22% and 15% less than that of SEC-DED for a 4Kbyte SPM, respectively. Moreover, this mechanism provides 10 times lower performance loss compared with SEC-DED.
Mineral leaching of non-sulphide nickel ores using heterotrophic micro-organisms (1994)

Journal Article Mineral leaching of non‐sulphide nickel ores using heterotrophic micro‐organisms Get access P.G. Tzeferis, P.G. Tzeferis National Technical University of Athens (NTUA), Department of Mining‐Metallurgical Engineering, Laboratory of Metallurgy, Athens, Greece Search for other works by this author on: Oxford Academic Google Scholar S. Agatzini, S. Agatzini National Technical University of Athens (NTUA), Department of Mining‐Metallurgical Engineering, Laboratory of Metallurgy, Athens, Greece Search for other works by this author on: Oxford Academic Google Scholar E.T. Nerantzis E.T. Nerantzis National Technical University of Athens (NTUA), Department of Mining‐Metallurgical Engineering, Laboratory of Metallurgy, Athens, Greece Search for other works by this author on: Oxford Academic Google Scholar Letters in Applied Microbiology, Volume 18, Issue 4, 1 April 1994, Pages 209–213, https://doi.org/10.1111/j.1472-765X.1994.tb00849.x Published: 01 April 1994 Article history Accepted: 31 October 1993 Published: 01 April 1994
`Charlee' Watermelon (1990)

slightly to the pit at soft ripe. We have judged 'Flordaglobe' as more attractive and superior in flavor to 'Flordaking'. Pits are mediumsmall and have a low (less than 'Flordaking') tendency to split.
The stochastic modeling of TiO<inf>2</inf> memristor and its usage in neuromorphic system design (2014)

Memristor, the fourth basic circuit element, has shown great potential in neuromorphic circuit design for its unique synapse-like feature. However, though the continuous resistance state of memristor has been expected, obtaining and maintaining an arbitrary intermediate state cannot be well controlled in nowadays memristive system. In addition, the stochastic switching behaviors have been widely observed. To facilitate the investigation on memristor-based hardware implementation, we built a stochastic behavior model of TiO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> memristive devices based on the real experimental results. By leveraging the stochastic behavior of memristors, a macro cell design composed of multiple parallel connecting memristors can be successfully used in implementing the weight storage unit and the stochastic neuron — the two fundamental components in neural network (NN)s, providing a feasible solution in memristor-based hardware implementation.
Molecular and Biological Characterization of a Naturally Occurring Recombinant Subgroup B Avian Leukosis Virus with a Subgroup J–Like Long Terminal Repeat (2006)

Infection of broiler chickens with subgroup J avian leukosis virus (ALV) results in the induction of myeloid tumors. However, although egg-type chickens are susceptible to infection with ALV-J, the tumor incidence is very low, and on rare occasions the tumors observed are of the myeloid lineage. We recently described the isolation of an ALV (AF115-4) from commercial egg-type chickens suffering from myeloid leukosis. AF115-4 was initially identified as an ALV-J isolate based on PCR analysis of the long terminal repeat (LTR). However, further characterization of the viral envelope indicated that the virus is recombinant with subgroups B envelope and J LTR. Here we further characterize this recombinant virus at both the molecular and biological levels. We show that the AF115-4 isolate expresses a recombinant envelope glycoprotein encoded by a subgroup B gp85 region and a subgroup E gp37 region. The host range ofAF115-4 was analyzed using cells resistant to infection by subgroups A/B, J, or E; this shows that no ALV-J was present in the isolates obtained from the affected chickens. Additional antigenic characterization of AF115-4 using chicken sera specific for subgroups B or J indicated that no ALV-J was present in the samples examined. Inoculation of AF 115-4 into ALV-susceptible 1515 X 71 chickens resulted in the induction of lymphoid leukosis but not the expected myeloid leukosis affecting the commercial chickens. These results suggest that differences in the genetic makeup of the chickens from which AF115-4 was isolated and the line 1515 X 71 used in the present experiments may be responsible for the observed differences in pathogenicity. In addition, the results suggest that ALV-J continues to evolve by recombination, generating new viruses with different pathological properties.
Singapore Perspectives 2010 (2010)

Home.Heart.Horizon: Welcome Remarks (K Y Ong) Keynote Address (H L Lee) One United People: One United People (S L Pek) The Third Phase of Singapore's Multiculturalism (D P S Goh) Why NEWater instead of SEWater: Difficult Policies and Unity for Singaporeans (C Leong) Reasonable Persons of Goodwill: Personal Experiences in Navigating Diversity (A Maniam) One Gracious Society: One Gracious Society (P Tay Straughan) In Search of Graciousness (T Chong) Living Graciously in Singapore (B Mathiaparanam) Kiasu Monkeys and Chicken Pies (S-L Gan) One Global City: One Global City (A Koh) Beyond Economics for Economic Success (K C Lee) The Future of Singapore as a Global City and its Socio-economic Implications (N Idris) Globalising Singapore: One Global City, Global Production Networks, and the Developmental State (H W-C Yeung) Wrap-up: Closing Address: Be Open to All Possibilities (K Y Ong) Closing Remarks (T Koh).
The human blastocyst: cell number, death and allocation during late preimplantation development <i>in vitro</i> (1989)

The development of 181 surplus human embryos, including both normally and abnormally fertilized, was observed from day 2 to day 5, 6 or 7 in vitro. 63/149 (42%) normally fertilized embryos reached the blastocyst stage on day 5 or 6. Total, trophectoderm (TE) and inner cell mass (ICM) cell numbers were analyzed by differential labelling of the nuclei with polynucleotide-specific fluorochromes. The TE nuclei were labelled with one fluorochrome during immunosurgical lysis, before fixing the embryo and labelling both sets of nuclei with a second fluorochrome (Handyside and Hunter, 1984, 1986). Newly expanded normally fertilized blastocysts on day 5 had a total of 58.3 +/- 8.1 cells, which increased to 84.4 +/- 5.7 and 125.5 +/- 19 on days 6 and 7, respectively. The numbers of TE cells were similar on days 5 and 6 (37.9 +/- 6.0 and 40.3 +/- 5.0, respectively) and then doubled on day 7 (80.6 +/- 15.2). In contrast, ICM cell numbers doubled between days 5 and 6 (20.4 +/- 4.0 and 41.9 +/- 5.0, respectively) and remained virtually unchanged on day 7 (45.6 +/- 10.2). There was widespread cell death in both the TE and ICM as evidenced by fragmenting nuclei, which increased substantially by day 7. These results are compared with the numbers of cells in morphologically abnormal blastocysts and blastocysts derived from abnormally fertilized embryos. The nuclei of arrested embryos were also examined. The number of TE and ICM cells allocated in normally fertilized blastocysts appears to be similar to the numbers allocated in the mouse. Unlike the mouse, however, the proportion of ICM cells remains higher, despite cell death in both lineages.
Vacuum Insulated Stainless Steel Straw Bottle with Hygienic Push Button (2009)

The usefulness of a new rapid diagnostic test (Patho-TB) using antibodies specific to mycobacterial antigens was evaluated for the rapid discrimination between pulmonary tuberculosis (TB) and non-TB pulmonary diseases on sputa. One hundred sputa collected from 79 active TB patients and from 21 patients with non-TB pulmonary diseases (asthma and chronic obstructive pulmonary disease) were enrolled into the study and tested for the presence of Mycobacterium tuberculosis by Ziehl-Neelsen smear, Patho-TB kit, and Lowenstein-Jensen culture. The sensitivity, specificity, positive predictive value, and negative predictive value of the Patho-TB test were 95%, 100%, 100%, and 84%, respectively. Patho-TB test is simple, quick, and easy to perform. Its sensitivity, specificity, and positive predictive value are satisfactory. Therefore, it could be used as a screening test in poorly equipped laboratories of TB endemic areas.
Congenital Malformations. (1962)

As part of its program metamorphosis, The National Foundation in July, 1960, sponsored the first World Wide Conference on Congenital Malformations in London. This volume makes available all the original presentations<i>in toto</i>and edited versions of the discussions and addresses —all in English. The roster of attendees at the conference—as might be expected—serves as a formidable jumping-off point to start a "Who's Who" of the field; the quality of the material is equally impressive. The brief introduction points to the enormity of the problem. This is followed by a particularly well-done consideration of incidence and its implications. Here the first paper, by a biostatistician, keynotes the tone of the entire conference, critically reviewing recent advances and current concepts. Once facts and fiction of this aspect have been adroitly handled, subsequent sections evolve focusing on genetics, environment, developmental mechanisms, teratogenic agents, maternal-fetal interaction, "practical problems," and perspectives for the future.
Resource reservation and admission control in IEEE 802.11 WLANs (2006)

The Resource Reservation and Admission Control (RRAC) in WLAN networks is essential for real-time applications, especially VoIP over WLAN. In that respect, the RRAC mechanism must support the BSS and ESS scopes as well as different reservation types (per-flow, per-station, etc.). Therefore, we introduce the Traffic Source-based Priority Scheme (TSPS); TSPS enables the priority mapping with IntServ and IEEE 802.1D QoS schemes. To manage the WLAN resources according to the admission control, the channel capacity is mapped according to different types of traffic (management, applications, etc). Consequently, certain RRAC mechanisms and algorithms for BSS and ESS scopes are developed to deal with different architectures and reservation types. Based on that, we implement a system prototype, called Lobaq; the experimental results present the major functionalities of the system behavior under different conditions.
104 Studies on the Tooth Surface Strength of Spur Gear : Influence of Surface Finish (2000)

Many studies on tooth surface strength of gears have been reported. In studies of them, the damage of tooth surface such as pitting or spalling is regarded as important. However, many uncertain points are left on pitting and spalling. So we studied the influence of tooth surface finish on the tooth surface strength and wear of case hardened spur gear. We found the following test results. Test results show that molybdenum disulfide processing gears have about 10% higher tooth surface strength than that of case hardened gears. In addition, it was also proved that molybdenum disulfide processing gears have better wear characteristics than the case hardened gears.
Real-Time Scheduling of Skewed MapReduce Jobs in Heterogeneous Environments. (2014)

Supporting real-time jobs on MapReduce systems is particularly challenging due to the heterogeneity of the environment, the load imbalance caused by skewed data blocks, as well as real-time response demands imposed by the applications. In this paper we describe our approach for scheduling real-time, skewed MapReduce jobs in heterogeneous systems. Our approach comprises the following components: (i) a distributed scheduling algorithm for scheduling real-time MapReduce jobs endto-end, and (ii) techniques for handling the data skewness that frequently arises in MapReduce environments and can lead to significant load imbalances. Our detailed experimental results using real datasets on a truly heterogeneous environment, Planetlab, illustrate that our approach is practical, exhibits good performance and consistently outperforms its competitors.
Evidence for the Significance of Vocabulary in L2 Writing (2014)

This paper examines empirical and theoretical evidence for the significant role of vocabulary in developing L2 writing skills, arguing for the...
Digital Watermarking Schemes for Multimedia Authentication (2005)

As the interconnected networks for instant transaction prevail and the power of digital multimedia processing tools for perfect duplication and manipulation increases, forgery and impersonation become major concerns of the information era. This chapter is intended to disseminate the concept of digital watermarking for multimedia authentication. Issues and challenges, such as security, resolution of tamper localization, and embedding distortion, of this technical area are explained first. Three main categories of watermarking approaches, namely fragile, semi-fragile, and reversible schemes, to the issues and challenges are then presented. Merits and limitations of specific schemes of each category are also reviewed and compared.
Local Structure Formation in Alkyl-imidazolium-Based Ionic Liquids as Revealed by Linear and Nonlinear Raman Spectroscopy (2007)

We show several pieces of Raman spectroscopic evidence that are indicative of local structure formation in imidazolium-based ionic liquids. Low-frequency Raman spectra of CnmimX, where Cnmim stands for 1-alkyl(CnH2n+1)-3-methylimidazolium cation and X represents the anion, exhibit broad bands assignable to collective modes of local structures. Spatial distributions of coherent anti-Stokes Raman scattering (CARS) signals from Cnmim[PF6] are consistent with local structures whose size increases with increasing n. Picosecond Raman spectra of S1 trans-stilbene as a "picosecond Raman thermometer" show microscopic thermal inhomogeneity ascribable to local structure formation in C2mimTf2N and C4mimTf2N. We also describe two novel phenomena that we believe are relevant to extraordinary nanoenvironments generated by local structures in a magnetic ionic liquid C4mim[FeCl4].
Functional effects of protein sequence polymorphisms in the organic cation/ergothioneine transporter OCTN1 (SLC22A4) (2007)

The common OCTN1-L503F variant may explain a significant amount of population variation in the pharmacokinetics of OCTN1 substrate drugs. The rare loss-of-function variants provide a rational tool for studying the importance of ergothioneine in humans in vivo.