Miracle-dz/UniFAR-FTUs huggingface dataset:
Effects of Atmospheric CO2 Enrichment on Crop Nutrient Dynamics under No-Till Conditions

ABSTRACT Increasing atmospheric CO2 concentration could increase crop productivity and alter crop nutrient dynamics. This study was conducted (3 yrs) with two crops ([Glycine max (L.) Merr. ] and grain sorghum [Sorghum bicolor (L.) Moench. ]) grown under two CO2 levels (ambient and twice ambient) using open top field chambers on a Blanton loamy sand under no-tillage. Macronutrient and micronutrient concentrations and contents were determined for grain, stover, and roots. Although elevated CO2 tended to reduce nutrient concentrations, high CO2 consistently increased nutrient content especially in grain tissue; this response pattern was more notable with macronutrients. The CO2 effect was observed primarily in soybean. The consistent CO2-induced increases in grain macronutrient contents favors reliable predictions of system outputs, however, predictions of crop nutrient inputs (i.e., stover and root contents) to the soil are less robust due to observed variability. Again, this is particularly true in regards to micronutrient dynamics in CO2-enriched cropping systems.
Evaluation of optimal unemployment insurance with reemployment bonuses using regression discontinuity (kink) design

This paper estimates the liquidity effect and moral hazard effect of extended un- employment insurance (UI) benefits using two natural experiments. In Taiwan, since unemployed workers eligible for unemployment benefits receive 50% of their remaining entitlements if reemployed before they exhaust benefits, extending potential duration not only extends benefits but also extends reemployment bonuses. We show the effect of extended benefits on unemployment duration can be decomposed to the liquidity effect and moral hazard effect, which is proportionally reduced by the reemployment bonuses. To estimate the effect of reemployment bonuses, we exploit the kinks in potential reemployment bonuses as the bonuses phased in. Our estimates show the imposition of bonus program reduces insured duration and nonemployment duration by about 5% and 13%, respectively. On the other hand, to identify the effect of ex- tended benefits, we exploit the fact that potential duration is a discontinuous function of exact age at job loss. The estimates using administrative data show the elasticity of insured duration to potential duration is about 0:7, and that of nonemployment du- ration is about 0:3. Combined with theoretical results, our estimates suggest liquidity effect explains 87% of the increase in unemployment duration due to extended benefits in Taiwan. Our calibration suggests it is optimal to increase potential duration and decrease the generosity of bonuses.
Low-complexity real-time signal processing for wireless communications

Many signal processing algorithms in modern wireless communication systems come with a very high computational complexity. Moreover, these algorithms must be implemented in real time. Since the computational performance of digital signal processors is limited, these two requirements—dealing with arithmetic complexity and real-time constraints—are often mutually exclusive. This thesis tries to solve this problem by trading the complexity of signal processing algorithms for accuracy. This approach is feasible if the accuracy of the underlying hardware or the accuracy requirements of the algorithm’s result is limited. The first part of this thesis deals with the real-time simulation of geometry-based channel models. Geometry-based channel models implicitly model the spatial structure of the channel and are thus ideally suited for simulating MIMO (multiple-input multiple-output) systems. However, such models are computationally expensive, since for every propagation path, every time instance, and every delay or frequency bin, a complex exponential has to be evaluated. On a real-time hardware channel simulator the number of paths P that can be simulated is thus limited by the available processing power. Time-variant, frequency-selective MIMO channels can be described as fourdimensional sequences, where the dimensions represent time, frequency, space at the receiver, and space at the transmitter. In wireless communication systems, such sequences are bandlimited by the maximum Doppler frequency in time, by the maximum delay of the channel in frequency, by the angle of arrival spread in the space at the receiver, and by the angle of departure spread at the space at the transmitter. For block based channel simulation, index-limited parts of these four-dimensional sequences need to be evaluated. It can be shown, that such index-limited parts span a low-dimensional subspace. The same subspace is spanned by the multidimensional discrete prolate spheroidal (DPS) sequences. An important contribution of this thesis is a new algorithm that allows to compute the projection of a geometry-based channel model onto the DPS subspace in O(1) arithmetic operations. By adjusting the dimension of the subspace it is possible to trade complexity for accuracy. On a 16 bit fixed-point arithmetic processor, the computational complexity can be reduced by more than one order of magnitude compared to conventional sum-of-sinusoids implementations. The second part of this thesis addresses the development and simulation of receiver
Research on responses of wild soybean to alkaline stress

345 lines of wild soybeans(Glycine soja) were collected from alkaline land in Baicheng of Jilin province.Different alkaline degrees soil was used for stress treatment from seeding.The germination rate and plant height were decreased with the increasing of alkaline concentration.Seed germination and growth were inhibited by 50% at pH 9.0. The 3 weeks seedlings were treated with 0,50,75,150,300,500 mmol/L NaHCO3,which indicated that the seedlings grew normally under 0 or 50 mmol/L stress and the others wilted after 19,6.5,3,and 0.5 h respectively.9 lines were selected with high germination rate and seed setting rate in alkaline soil(pH 9.0). Their contents of Chlorophyll,relative electrical conductivity and malondialdehyde were measured.G07048,G07092 and G07256 had no significant difference in the above index after stress treatment and were alkaline tolerant.
Excitation wavelength-induced color-tunable and white-light emissions in lanthanide(III) coordination polymers constructed using an environment-dependent luminescent tetrazolate–dicarboxylate ligand

An alternative approach to fabricate color-tunable and white-light-emitting lanthanide(III) coordination polymers (LnCPs) is demonstrated by employing a selective light-emitting tetrazolate–dicarboxylate ligand, which displays different color emissions when coordinated to different lanthanide(III) ions. The emission colour of the obtained LnCPs can be modulated from orange to white by simply adjusting the excitation wavelengths. White-light emissions, with high color rendering index and favorable correlated color temperature, have been successfully realized in new 2D single-component Sm(III) and two-component Eu(III)-doped Gd(III) coordination polymers excited at specific excitation wavelengths.
Concerning the use of statistical estimates of productive bed parameters using pressure recovery curves

PETRUNIAK V.Ya. JV “Poltava Oil and Gas Company” Nowadays hydrodynamic monitoring of productive beds is mostly conducted with the help of pressure recovery curves (PRC). Common methods of interpretation of hydrodynamic research on the PRC [1-6] are based on deterministic productive bed evaluation that does not correspond to information provision and limits their practical use. Some authors [7, 8] proposed a method of processing of data of productive bed PRC hydrodynamic monitoring, which lays in selection of the most adequate model of a class of possible hydrodynamic modeling of the reservoir. Model and parameters of a productive bed are estimated with the use of maximum likelihood function. Note that in this case the evaluation of bed parameters satisfies the condition of effectiveness. In the applied aspect of data interpretation of hydrodynamic data for productive bed lays in building statistical estimates of the bed parameters, formulation and verification of relevant statistical hypotheses, simulation of hydrodynamic processes which take place during implementation of active impact on the productive bed. The aforementioned elements of application of statistical information are considered below: Data processing of PRC hydrodynamic study lays in estimation of a0 and a1 parameters of the following linear model
Determination of Six Sulfonylurea Herbicide Residues in Soybeans by HPLC-MS

A high performance liquid chromatography/electrospray ionization mass spectrometry method at the selective ion monitoring mode has been developed for the simultaneous determination of six sulfonylurea herbi-cide residues in soybeans.Sulfonylurea herbicides were extracted with acetonitrile,followed by hexane parti-tioning.After the extract was cleaned up with florisil column,sulfonylurea herbicides were analyzed by HPLC-ESI(+)-MS and quantified by external calibration method.The linear range was from0.025to 1. 0μg/mL,and the correlation coefficients were0.9996-0.9997. The average recoveries of six sulfony-lurea herbicides in spiked soybeans ranged from72%to99%,and the relative standard deviations were be-tween0.9%and7.7%. The detection limit of this method was10μg/kg.
EFFECTS OF SODIUM CHLORIDE CONCENTRATION ON SATURATION DEGREE IN CONCRETE UNDER FREEZING-THAWING CYCLES

Effects of NaCl concentration on solution absorption and saturation degree in concrete under freezing-thawing cycles were investigated. The results show that the increasing rate of the saturation degree in concrete surrounded with NaCl solution is much higher than that surrounded with water, and the solution absorption in concrete increases with the increase of NaCl concentration. The solution absorption in concrete is obviously reduced with the increase of thawing time until reaching equilibrium. The rate of solution absorption and the increase of the saturation degree in concrete under freezing-thawing cycles are much higher than those at normal atmospheric temperatures. Furthermore, by dividing the freezing-thawing cycle into three stages, the frost or deicing-frost deteriora- tion mechanisms of concrete were analyzed.
Determination of titanium in Nb47Ti alloy by inductively coupled plasma atomic emission spectrometry combined with normalization method

A new method was developel worked out for the determination of Ti in Nb47Ti alloys by inductively coupled plasma atomic emission spectrometry(ICP-AES) combined with normalization method.The sample was dissolved in a mixture of nitric and hydrofluoric acid.323. 452 nm(104) was selected as the analytical spectral lines for titanium,323.494 nm and 323.434 nm were used as the left and right deduction points of background,respectirely.Under optimized conditions,the spectral interference was corrected by matrix matching method,and the calibration curve was plotted using normalization method with linear correlation coefficient higher than 0.999 9.The proposed method has been applied to the determination of titanium in Nb47Ti and the determination results were consistent with those obtained by titrimetry with ferricammonium sulfate titration.The recovery was 99 %-101 %,and the relative standard deviation(RSD) was less than 0.95 %.
Effects of NaCl concentration and initial pH value on biogenic amine formation dynamics by Enterobacter spp. bacteria in model conditions

Summary Effects of NaCl concentration and initial pH value on biogenic amine formation by the bacteria Enterobacter aerogenes and Enterobacter cloacae in GTY broth (glucose, tryptone, yeast autolysate) were studied. Sterile GTY broth of various NaCl concentrations and initial pH values was inoculated with 5 x 103 CFU.cm-3 E. aerogenes and/or E. cloacae and cultured at 37 °C under stationary conditions. Biogenic amines were determined by the HPLC-UV method as Dansyl derivatives. Amines specific formation rates (νP) were calculated from parameters of the function cP = f(τ). Under the model conditions used, E. aerogenes produced cadaverine and histamine, with the highest cadaverine and histamine concentrations measured in broth containing 3 % NaCl (1 807 μg.cm-3 and 341 μg.cm-3, respectively). E. cloacae only produced putrescine from ornithine, and the highest putrescine concentrations (320.6 μg.cm-3) were measured at the NaCl concentration of 0.5 % and pH 6 (548.2 μg.cm-3).
Production and Applications of Vertically Aligned Single-Walled Carbon Nanotubes *

Synthesis of vertically aligned single-walled carbon nanotube (VA-SWNT) thin films by alcohol catalytic chemical vapor deposition has been clarified using an in situ optical absorbance measurement technique, which makes it possible to control the final film thickness. These VA-SWNT films can be detached from the substrates on which they are grown and reattached onto arbitrary solid surfaces by a simple hot water-assisted process. This will allow many new areas of SWNT applications to be investigated.
Developmental Stages Associated with Organizational Learning: An Instrument Development Study

Developmental Stages Associated with Organizational Learning: An Instrument Development Study Kalene Mears Ethington College of Nursing, BYU Master of Science Background: Previous research has identified four distinct developmental stages associated with organizational learning in high-performing hospital units: identity and ownership, team and respect, accountability and support, and reliability and sustainability. We designed a research instrument to measure these constructs. The purpose of this thesis was to establish the content and predictive validity of this instrument. Methods: The Organizational Learning Development Instrument (OLDI) consists of a total of 35 items in Likert-scale format. Item-level and instrument-level content validity were assessed using three cycles of cognitive interviewing with 28 nurses, and eight expert ratings. The OLDI was administered to nurses in Magnet® hospitals via a web-based survey. National Database of Nursing Quality Indicators (NDNQI) and Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) reports were used for comparison of hospital performance. Predictive validity was tested using multiple linear regression. Based on a power analysis for multiple linear regression, reaching 80% power, with a medium effect size of 0.15, an alpha of 0.05, and five predictor variables, the target sample size was 92 hospital units. Results: Results from 63 inpatient units in 11 Magnet® hospitals were used. The scalelevel content validity for this instrument was 0.95 and item-level content validity index scores ranged from 0.86 to 1.0, suggesting excellent content validity. No significant relationships were found between OLDI results and NDNQI measures. Significant correlations (P<.05) were found between several OLDI constructs and HCAHPS composites. Discussion: Correlations with HCAHPS scores help validate the OLDI, as well as the theory underlying the instrument. The OLDI may not have predicted NDNQI measures due to a lack of instrument sensitivity or because NDNQI results are strongly influenced by other factors. Nurse managers can use the OLDI to predict unit performance related to patient satisfaction and to determine actions that may improve unit performance. Replicating this study with a larger sample size and more diverse hospital performance and more uniform unit type could further validate this instrument.
Hydrogenation of Naphthalene on HY/MCM-41/γ-Al_2O_3- Supported Sulfided Ni-Mo-P Catalyst

A series of MCM 41 mesoporous molecular sieves with different SiO 2/Al 2O 3 molar ratios were synthesized by hydrothermal method. The influence of aluminum content on the properties of MCM 41 was investigated. Ni Mo P catalysts were prepared by impregnating HY/MCM 41/γ Al 2O 3, HY/γ Al 2O 3 and γ Al 2O 3 with Ni Mo P solution, and the catalytic activity of sulfided Ni Mo P catalysts was evaluated by naphthalene hydrogenation. The results showed that the crystallinity of MCM 41 decreased with the increase of aluminum content. However, the hydrogenation activity, especially the ring opening activity, of the catalyst increased with the aluminum content. The catalyst using HY/MCM 41/γ Al 2O 3 as support showed a synergistic effect and higher catalytic activity for naphthalene hydrogenation. The reaction mechanism was proposed, and the reaction network for naphthalene hydrogenation might include two parallel pathways: naphthalene was hydrogenated to tetralin, and then the isomerization and ring opening of tetralin occurred, or tetralin was further hydrogenated to decalin followed by the isomerization and ring opening of decalin.
Analysis of Five kinds of Vitamins Content in 11 Different Pineapple Fruits

Five kinds of vitamins' contents of fruits in eleven pineapple varieties were analyzed by using HPLC.The results showed that the contents of vitamin C,vitamin A and vitamin B3 were 99.9 ~230.9 μg/g,1.6~3.8 μg/g and 3.8~23.5 μg/g,respectively,and the content of Vitamin B6 was most varied(i.e.,4.5~67.1 μg/g). On the other hand,although the content of Vitamin B12 was varied between 2.0~12.1 μg/g,in the other varieties,it was not detected in the fruit of Comte de paris,Tainong 11,Golden Winter Sweet,Phuket and New Phuke.The contents of Vitamin B3 and vitamin B6 in the fruits of Golden Winter Sweet were the highest,the contents of vitamin C in the fruit of Tainong 11 and vitamin A in the fruits of Comte de paris were significantly higher than the other varieties.The highest content of vitamin B12 was founded in the fruit of Tainong 19.
A Novel QSAR Model Based on Geostatistics and Support Vector Regression

Based on principal component analysis (PCA), geostatistics (GS) and support vector regression (SVR), a novel individual forecasting method for quantitative structure-activity relationship (QSAR)——Weight-PCA-GS-SVR was proposed. The basic principles were as follows: firstly, dimensions were reduced and redundant information from independent descriptors was eliminated using PCA; secondly, the principal components that have no relationship to activity were removed nonlinearly using SVR; thirdly, weighted distances between samples were calculated by the retained principal components; fourthly, a common range was confirmed using high-dimensional geostatistics; lastly, k nearest neighbors of each test sample were found from the training set with their weighted distances shorter than a common range and then the models were constructed and the individual prediction was found to be feasible using SVR. Weight-PCA-GS-SVR optimized the model along the column direction (descriptor) and row direction (sample), and had all the advantages of SVR. It therefore provides a new way to choose k nearest neighbors in the field as well as being a novel weighted method for determining the retained principal components or the retained descriptors. Predicted results from three data sets all verify that the novel method has the highest prediction precision among all reference models and has a remarkable advantage over reported results. Weight-PCA-GS-SVR, therefore, can be widely used in QSAR and other regression prediction fields.
Cross-conjugation of DNA, proteins and peptides via a pH switch

The design of an orthogonal, thiol-reactive cross-conjugation reagent is presented that allows step-wise and site-selective combination of biomacromolecules such as proteins, peptides or oligonucleotides by simply adjusting the pH. Both reaction centers of this versatile bioconjugation reagent are located at opposite sites leaving sufficient space for combining even sterically demanding molecules. Our results are of high significance and general applicability for the preparation of defined peptide–protein, protein–protein or protein–DNA conjugates and pave the way to tailored biotherapeutics.
Exact and simple method for calculating pressure distribution in deep gas condensate well with high temperature and pressure

Based on the principle of phase equilibrium of fluid, a new model for calculation of pressure distribution in gas condensate well was established in consideration of the effects between temperature and pressure and the effect lead by the change of kinetic energy. The deviation factor is also considered as a function of temperature and pressure in the model. The wellbore was divided into many parts, and iterative calculation was executed within every part during the whole calculation. The new model and the model of average deviation factor and average temperature were compared. The result indicates that the new model has a better precision and may be used in the calculation of pressure distribution in gas condensate well with high temperature and pressure when the depth of well is over 4? 000 meters.
Research on Determination of Argentum ions in the Waste Water of Film by Resonance Light Scattering Turbidimetric Method

Colloidal Argentum Chloride at 375,496,565 nm has three significant resonance scattering peak in which the scattering peak intensity at 496 nm is largest and most stable,and is suitable for the resonance light scattering turbidimetry method.In this paper,we discuss the mechanism of the resonance light scattering turbidimetry,and establish a new method for determination of Argentum ions in acidic sodium chloride-ethylere glycol solution using the resonance light scattering turbidimetry.In this linear regression equation,IRLS=7.60cAg+-4.82,and R is 0.999 8,and detection limit is 0.04 μg/mL.This method is suitable when applied in real samples.
Study the protection and combination on the total flavones of epimedium to the immunodeficiency rats induced by corticosterone

Aim To investigate the protection of the combination of total flavones of epimedium,total saponins of anemarrhena,and glycyrrhetinic acid to the kidney and immunologic function of the kidney-yang deficiency rats treated with corticosterone.Methods The kidney-yang deficiency models of rats were treated with corticosterone,and the protection of the combination of total flavones of epimedium,total saponins of anemarrhena,and glycyrrhetinic acid to the kidney and immunologic function was investigated.Results The combined use of total flavones of epimedium,total saponins of anemarrhena,and glycyrrhetinic acid could obtain the best of antagonistic effects on the side effect caused by corticosterone.Conclusions The combination of traditional Chinese medicine which nourish yin,warm and reinforce kidney can effectively antagonize the inhibition of exogenous cortical hormone to kidney and immunologic function and has the potential and applied value to be developed into a new drug.
Academic contributions in supply chain management: A university analysis

The studies related to supply chain management have experienced a huge growth during the last 27 years. So, it seems necessary to investigate the diverse dimensions of this growth to understand better the existing trends also the possible patterns. The purpose of this study is to analyze the leading and productive worldwide universities. To do so the universities are studied globally, periodically and in some select significant journals in supply chain management area. The data of Web of Science is analyzed between 1990 to 2017. The results show that although in general American universities have the highest share among others, but Asian universities and especially Chinese ones start a rapid growth and it is predictable that in future they become leaders. Besides, European universities also have the next position according to the number of publications.