Miracle-dz/UniFAR-FTUs huggingface dataset:
Effects of the defoliation height on the growth, mineral uptake and soluble carbohydrate contents in berseem clover (Trifolium alexandrinum L.) var. Khadhraoui

Abstract: In a pot experiment the responses of berseem clover (Trifolium alexandrinum L.) var. Khadhraoui to the defoliation heights (2.5 -5 -7.5 and 10cm) were evaluated in terms of shoot and root growth, K, Ca and P inorganic uptake and soluble carbohydrates. Plants were grown in green house under natural light and temperature. The experimental was conducted using a complete randomized block design with 4 repetitions. Berseem was defoliated when plants achieved 50cm of height. Results showed that the cumulative dry material varies with the defoliation height. In the sixth harvest treatment, DM under the 5cm cutting height was significantly higher than in the other treatments. The leaf area (LA) per plant showed a depressive effect of the extreme defoliations: shorter (2.5cm) and higher (10cm), while the cutting heights at 5 and 7.5cm present a LA appreciably similar. The specific leaf area (SLA) decreases with the increase in the defoliation heights and a significant difference is observed between plants defoliated at 2.5 and 5cm, on one hand and those harvested at 7.5 and 10cm, on the other hand. The Stem/Leave ratio is a good index for the appreciation of fodder quality. Indeed, the defoliation heights at 2.5 and 5cm have a fodder quality better than those defoliated at 7.5 and 10cm. Compared to the other treatments, the Shoot/Root ratio under the defoliation height of 5cm was the lowest. K content in roots, stems and leaves decreased with the increase in the defoliation heights. Calcium content was not affected by the defoliation heights. The phosphorus decreased significantly with the cutting heights and the time of the harvest in the three organs of the berseem Khadhraoui. The soluble sugar contents in roots, stems and leaves of the berseem showed a severe decline in the root system. Results suggest that soluble carbohydrate reserves in roots can support plants regrowth after defoliation.
Pyrosequencing Reveals Shared Bacterial Taxa Across Continents

Soil bacterial community structures di er markedly between environments but apparently there is a degree of prokaryote endemism across broad geographic scales. With this work we aimed to analyze the membership of the soil bacterial communities from soil samples collected across a continental scale and test whether contrasting environments present a subset of the soil microbial community that is shared between environments. Bacterial community composition from soils collected at the Keller Peninsula, Antarctica and from the Brazilian Pampa was assessed by pyrosequencing of the 16S rRNA gene fragments. e sequences obtained were processed to calculate the Good’s coverage, to perform a Principal Coordinate Analysis (PCoA), to calculate Jaccard’s and Sorensen’s beta diversity dissimilarity indexes, and to perform a network-based analysis for the visualization of the OTUs that are either unique or shared by speci c groups of soil samples. e overall composition of the bacterial community di ered whether or not the abundance of taxa was considered. However, it was possible to detect the presence of 7.56% bacterial taxa (1,940 OTUs) shared between biomes. Our results showed that although organisms in environments at the extremes of temperature are presumably under strong selective pressures contrasting soils can harbor at least a fraction of shared bacterial taxa.
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tive proof of safety—support the belief that repeated doses of hetastarch and pentastarch are well tolerated. First, Hester et al. performed 14 to 149 therapeutic leukapheresis procedures using hetastarch over an average of 16 months when treating 15 patients with chronic myelogenous leukemia. The authors noted no clinically evident adverse effects. Autopsy data from six patients did not reveal vacuolization of tissues or marrow, as evidence of HES storage, although fixation of tissues may have hampered this examination. Second, we studied 13 marrow donors, who also provided prophylactic granulocyte transfusions to their recipients, and found few adverse effects. The 13 donors experienced 12 to 29 daily leukapheresis procedures using hetastarch. A few problems were noted, as expected due to citrate infusion and repeated removal of platelets and leukocytes. The only problems possibly related to repeated HES administration were dry skin, itching, and rash in five donors. Skin problems disappeared within weeks, except in one donor who reported “warts” in the area of previous itching. Third, in a laboratory study of human blood neutrophils, blood mononuclear cells and alveolar macrophages, little to no ingestion of Chetastarch was demonstrated. Thus, significant uptake of hetastarch into leukocytes, to form the foamy macrophages as reported with EloHAES ingestion by Auwerda et al., seems highly unlikely. In conclusion, the metabolism and biological effects of EloHAES are quite different than those of hetastarch and pentastarch. It is already common practice to avoid use of HES, as replacement fluid during plasma exchange, for patients with renal impairment—when clearance may be impaired—and for patients with hemostatic abnormalities—when lowering of von Willebrand factor may be dangerous. Thus, it is not likely that precautions in clinical practice beyond this are necessary. However, it would be interesting and, perhaps, clinically useful, to measure chitotriosidase in patients undergoing repeated plasma exchange procedures for which hetastarch or pentastarch are used as a replacement fluid. Ronald G. Strauss, MD e-mail: Ronald-Strauss@uiowa.edu DeGowin Blood Center University of Iowa Iowa City, IA
NACTA Sept 04 Journal.cdr

An Integrative Theory of Motivation This paper presents a unifying theory of motivation that integrates the major motivational perspectives from the field while testing the differences in student motivation between agriculture/natural resources and non-agriculture/natural resources university majors. The unifying theory features five sources of motivation: intrinsic process, instrumental, self-concept external, self-concept internal, and goal internalization. The study was based on a sample of 208 undergraduate students. Results indicate that a statistically significant difference exists between agr i cu l ture /natura l resources and nonagriculture/natural resources majors for self-concept internal and goal internalization motivation. Implications for teaching, recruitment and future research are also discussed.
Psychometric Properties of the Intensification of Job Demands Scale based on a sample of Colombian workers

The acceleration of the pace of organizational management poses new challenges that can be expressed as an intensification of job demands, and people express it as an increase in the intensity levels of their task development, and a feeling of Propiedades psicométricas de la escala de intensificación de demandas del trabajo a partir de una muestra colombiana Juan Sandoval-Reyes; Fernando Riveros Munévar; Edison Jair Duque Oliva How to cite this article: Sandoval-Reyes, J., Riveros Munévar, F. , Duque Oliva, E.J., (2020). Psychometric Properties of the Intensification of Job Demands Scale based on a sample of Colombian workers. Acta Colombiana de Psicología, 23(2), 52-62. http://www. doi.org/10.14718/ACP.2020. 23.2. 3 Recibido, mayo 29/2019; Concepto de evaluación, septiembre 24/2019; Aceptado, enero 16/2020 53 Sandoval-Reyes, J., Riveros Munévar, F. , & Duque Oliva, E.J.
Universal PCR coupled with high-resolution melting analysis for rapid detection and identification of microorganism: strategies and perspective

Technologies for the rapid and accurate diagnosis of infectious diseases are urgently needed. There were many methods developed for the diagnostic purpose, including microarrays, biosensors, multiplex PCR, combined PCR with mass spectrometry, capillary electrophoresis, and lab-on-chip tests, which have a major impact on the rapid diagnosis of infectious diseases. Each of the above methods has several unsolvable shortcomings, such as complexity and time-consuming operation, high cost requiring special equipment (electrospray ionization/mass spectrometry). Therefore, use of these methods has been limited in clinical practice. In the present article, we focus on a new method that couples broad-range PCR amplification with high-resolution melting analysis, which serves as a novel approach for molecular diagnosis of infectious diseases. The strategies and applications of this method are discussed.
Characterizing the vibratory and acoustic signals of the “purring” wolf spider, Gladicosa gulosa (Araneae: Lycosidae)

Abstract Both airborne acoustic signals and substrate-borne vibrations are prevalent modes of animal communication, particularly in arthropods. While a wide variety of animals utilize one or both of these modalities, the connection between them is still ambiguous in many species. Spiders as a group are not known for using, or even perceiving, acoustic signals, despite being well-adapted for vibratory communication. Males of the “purring” wolf spider Gladicosa gulosa are reported to produce audible signals during courtship, although the literature on this species is largely anecdotal. Using a laser Doppler vibrometer and an omnidirectional microphone in controlled conditions, we recorded and characterized the visual and mechanical (both substrate-borne and airborne) signals of this species in an attempt to provide a qualitative and quantitative overview of its signal properties. We found that the vibratory signal is composed of two primary repeating and alternating elements, consisting of pulses of stridulation and percussive strikes, as well as a less common, but repeatable, third element. We also characterized a measurable airborne component to the signal that is significantly correlated with the amplitude of the vibratory signal, which we suggest is a by-product of the strong vibration. Neither modality correlated significantly with male body size or condition. Although the exact role of the acoustic component is unclear, we speculate that the unique properties of signalling in this species may have value in answering new questions about animal communication.
The clinical value of ultrasonic tissue characterization in the management of heart transplant patients

The purpose of this study was to evaluate the rejection process by ultrasonic tissue characterization. Serial 2D echocardiographic images were obtained within 24 h prior to an endomyocardial biopsy. The end‐diastolic echoframes were digitized into a computer matrix. A region of interest was placed into the anteroseptal segment of each scan. Image texture was analysed by four major groups of texture analysis (first‐order histogram, co‐occurrence matrix, run‐length statistic, power spectrum). In 23 patients, 408 biopsies were taken after each examination, so that correlation between the ultrasonic tissue measurements and the histological state of the tissue could be determined. When rejection occurred, heterogeneity, brightness and contrast of texture increased. Of 117 texture parameters originally claculated, three parameters (inverse difference moment, run‐length non‐uniformity, ring sums of power spectrum) that characterized rejection were determined by means of discriminance analysis. Compared with biopsy findings, echocardiographic sensitivity for moderate rejection was 93.3% and specifity 83.6%. Our study indicates that acute rejection is associated with changes in echocardiographic texture. Serial echocardiographic texture analysis can reliably identify heart transplant rejection.
Spring Burning: Resulting Avian Abundance and Nesting in Kansas CRP

Spring burning is used to control invasion by woody vegetation of rangelands in eastern Kansas and also of Conservation Reserve Program (CRP) fields planted to native grasses. We measured the effects of spring burning of CRP fields on vegetation structure and avian populations in northeastern Kansas during the summers of 1992 through 1995. Several vegetation characteristics differed between burned and unburned CRP fields in May, but few differed in July. Mean avian abundance on burned CRP fields was 5.6 birds km-1 of survey transect, significantly less (P < 0.01) than the 8.6 km-1 on unburned fields. The avian-assemblages on burned and unburned fields differed more in May/June [Morisita's Index to Similarity (MIS) = 0.86] than in June/July or July/August (MIS = 0.98 and 0.97, respectively). Avian species richness ranged from 12 to 21 on burned fields and from 10 to 19 on unburned fields. A total of 27 nests was found on burned fields, significantly less (P < 0.01) than the 372 found on unburned fields. The 22.2% nesting success on burned fields was not significantly different (P = 0.205) than the 34.1% success on unburned fields. Spring burning reduced bird-nest numbers in the summer of the same year, but did not reduce significantly (P = 0.235) the number of nests found in those fields the following summers nor the abundance of birds or nesting success. Avoidance of annual burning would reduce adverse impacts on bird populations relying on CRP fields for nesting habitat.
Genetic Structure and Diversity of Both Enhanced Germplasms Developed during 10th Five-Year Plan and Modern Cultivars Released during 1963-1995 in China

To clarify the patterns of genetic structure,22 relased modern cultivars and 22 new enhanced germplasms were analyzed with 24 SSR markers.Among the total of 231 alleles,36 unique alleles were found only in new enhanced germplasms.At Satt309 locus,which closely linked with soybean cyst nematode resistance,an allele,which only was found in Chinese soybean landrace,was confirmed.Combining the results obtained by using UPGMA method and model-based method,four distinct clusters were discovered.Cluster Ⅰ was comprised of 13 new enhanced germplasms from Northeast region and Shanxi province.Cluster Ⅱ included 8 released cultivars from Northerneast region.Cluster Ⅲ consisted of 4 new enhanced germplasms and 4 released cultivars from Huanghuaihai and Southern region.Cluster Ⅳ contained 4 relased cultivars from Jilin,Heilongjiang,Shanxi and Henan provinces.The results of genetic diversity analysis showed that the new enhanced germplasms,which utilized foreign germplasms and wild species as parent,broadened the genetic base of released cultivars in northeast region.
Isoamylase levels in bone marrow transplant patients are affected by total body irradiation and not by graft‐versus‐host disease

Abstract. The mean total serum amylase levels in patients was 3.2 ± 0.5 μkat/l (± SE) before total body irradiation (TBI) prior to bone marrow transplantation of which 50% was due to pancreatic isoamylase and 50% salivary isoamylase. Total serum amylase increased to a maximum of 100.3 ± 12.3 μkat/l on the first dayafter TB Iandmostofthis increase was due to an increase in salivary isoamylase (90.0 ± 12.1 μkat/l). In association with this, all patients had clinical symptoms of parotitis. An increase in pancreatic isoamylase was found in 27% of the patients; however, none of them had clinical symptoms of pancreatitis. Serum amylase levels returned to normal within 5 days after TBI but then decreased to subnormal values, remaining below the normal range for 3 weeks. Pancreatic isoamylase returned to pre‐irradiation levels 1.5 months after TBI, while salivary isoamylase remained low for the rest of the observation time. TBI of 7.5 Gyat 26 cGy/min gave significantly lower salivary amylase at 2 days after TBI compared with 10 Gy at 4 cGy/min: 32 ± 4 versus 76 ± 13 μkat/l (P < 0.05). At 2.5 and 6 months after TBI significantly higher total amylase levels were recorded for patients treated with 7.5 Gy of TBI compared with 10 Gy: 2.5 ± 0.4 and 2.7 ± 0.3 versus 2.0 ± 0.5 and 0.8 ± 0.3 μkat/1, respectively (P < 0.01, P < 0.05, respectively). Acute or chronic GVHD did not affect acinar cells in this investigation.
SINEs

Short interspersed elements (SINEs) are mobile genetic elements that invade the genomes of many eukaryotes. Since their discovery about 30 years ago, many gaps in our understanding of the biology and function of SINEs have been filled. This review summarizes the past and recent advances in the studies of SINEs. The structure and origin of SINEs as well as the processes involved in their amplification, transcription, RNA processing, reverse transcription, and integration of a SINE copy into the genome are considered. Then we focus on the significance of SINEs for the host genomes. While these genomic parasites can be deleterious to the cell, the long‐term being in the genome has made SINEs a valuable source of genetic variation providing regulatory elements for gene expression, alternative splice sites, polyadenylation signals, and even functional RNA genes. WIREs RNA 2011 2 772–786 DOI: 10.1002/wrna.91
Habitat selection and fidelity by White-throated Sparrows (Zonotrichia albicollis): generalist species, specialist individuals?

Individuals from habitat generalist species are often thought to be habitat generalist themselves, but this assump- tion should be examined in light of mounting evidence for native and phenotypic habitat preference. We experimentally tested whether the White-throated Sparrow (Zonotrichia albicollis (Gmelin, 1789)) exhibits habitat preferences at the indi- vidual level. The White-throated Sparrow was a habitat generalist species in our study area, with high occupancy of clear- cuts as well as mature forests. However, males in mature forests whose territories were clear-cut in the winter following their breeding season (n = 14), dispersed twice as far as males from uncut mature forests (n = 21). New territories selected by males after clearcuts contained significantly more mature forest than what remained in the territory that they abandoned, but not as much mature forest as was found in their former territory. Gain in uncut habitat after dispersal was positively cor- related with dispersal distance. Clear-cut locations left vacant by dispersing males were colonized by new conspecifics. Our results suggest that individual sparrows use only a subset of their species' wide range of habitats. We question the assump- tion that individuals from a generalist species are versatile and unlikely to be affected by habitat disturbance.
Isolation of chromosome DNA of wheat blue dwarf phytoplasma

[Objective] Isolating chromosome DNA of wheat blue dwarf(WBD) phytoplasma and establishing an effective protocol of purification for chromosome DNA. [Methods] Differential centrifugation and plus-filed gel electrophoresis(PFGE) were used to purify the chromosome DNA of WBD phytoplasma.The band observed in PFGE was confirmed by PCR and Southern blot.The effect of each step was detected by real-time quantitative PCR analysis. [Results] Using differential centrifugation and PFGE,a band about 650 kb was observed,which was confirmed as the chromosome DNA of WBD phytoplasma by Southern blot hybridization and PCR.Meanwhile,real-time PCR analysis showed that the relative copies of WBD phytoplasma chromosome DNA derived from differential centrifugation and PFGE was 436.5 times than that in the total DNA of infected periwinkle. [Conclusion] The size of WBD phytoplasma chromosome DNA is about 650 kb,purified WBD phytoplasma chromosome DNA can be obtained effectively using differential centrifugation and PFGE.
Changing Perspectives in Australian Archaeology, part XI. Rare and curious thylacine depictions from Wollemi National Park, New South Wales and Arnhem Land, Northern Territory

Thylacines have long fascinated both Indigenous and non-Indigenous Australians. Ancient rock art depictions and recent attempts to clone thylacines with DNA from preserved specimens are good examples of this interest, with the Australian Museum involved in both the documentation of thylacine rock art and DNA sequencing. In this paper we report on a curious rock drawing from a site within Wollemi National Park, NSW and another rock art panel with superimposed paintings from Arnhem Land, NT. Both sites were found in recent years and documented as part of larger regional studies. Val Attenbrow has long argued that we should be cautious when interpreting archaeological evidence and assigning age, so with this in mind we offer a scientific assessment of these rare and unusual thylacine-like images. We conclude that images of thylacines were likely made over both a longer period of time and across a more geographically diverse area than previously realized.
A New Approach to Estimate the Complex Relative Permittivity of Materials Based on Free-Space Reflection Method

A microwave free-space reflection method for determining the complex permittivity of planar materials is demonstrated. Improved the MUltiple SIgnal Classification (MUSIC) algorithm to estimate the complex relative permittivity of material based on the reflection coefficients measurement of a metal-backed material sample placed in a free-space with the thickness of the samples is the much greater time the wavelength. The measurement system consists of a pyramidal horn antenna operating at X-band and a metal-backed sample placed in a free-space. From the measured values of the reflection coefficients through a known thickness of a planar slab of the material sample, the complex relative permittivity of the material samples is estimated by the proposed algorithm without determining an integer time the wavelength in the sample under test. The proposed algorithm is verified with different thickness material samples at X-band. The estimation results show that the complex relative permittivity of material samples is accurately when thickness changes.
The nutrient economy of a marine inlet: Lough Hyne, South West Ireland

Abstract Simple mass balance models have been frequently used in limnology to study the retention of nutrients by lakes. However, there are difficulties in applying mass balance to marine systems, particularly with regard to parameters involved in tidal flushing. A well defined tidal channel at the entrance to Lough Hyne allows the use of adapted mass balance models to study the nutrient economy, and to make inferences about system scale productivity. Water quality gathered over four years demonstrated a net input to the lough for three different nutrients. There was a net tidal input of dissolved inorganic phosphorus. Significant inputs of dissolved inorganic nitrogen and dissolved inorganic silicon came from freshwater sources. In two of the years a net input of dissolved inorganic nitrogen from the sea was also detected. Scaling the net inputs with flushing terms in a mass balance leads to estimates of the net system productivity. From a dissolved inorganic phosphorus budget, the uptake of nutrient in .