gebhart/patrepeval huggingface dataset:
Ventilation in Plant Tissue Cultures and Effects of Poor Aeration on Ethylene and Carbon Dioxide Accumulation, Oxygen Depletion and Explant Development (1991)

A simple technique for comparing and quantifying the ventilation capacity of vessels used for plant tissue culture is described. Ethylene was injected into culture vessels and its rate of loss monitored by gas chromatography. From the resulting exponential decay curves, the time in hours for half the ethylene to be lost (t50) was calculated and used to compare different containers and sealing methods. Cultures of Ficus lyrata Warb. and Gerbera jamesonii Bolus grown for up to 28 d in plastic vessels sufficiently well-sealed to generate t50 values of approx. 16 h, accumulated ethylene and carbon dioxide in association with depleted oxygen. The relationship between carbon dioxide accumulation and oxygen depletion within culture vessels indicated little if any anaerobic respiration. Gerbera explants did not appear to be affected by these gaseous environments. However, in Ficus, leaf expansion was approximately halved, although fresh and dry mass of whole shoots was not decreased. The smaller leaf size is attributed to the action of accumulated ethylene, because when the gas was absorbed with 'Ethysorb' granules or its action inhibited by 2,5–norbornadiene, leaf growth was normal. The removal of carbon dioxide with potassium hydroxide did not enhance the ethylene effect, indicating little if any antagonism of ethylene action by carbon dioxide. Shoots of potato (Solanum tuberosum L. cv. Red Craig's Royal) were shortened in sealed culture vessels, in association with swelling, diageotropism and miniaturization of the leaves. When tuber production was induced by decreasing the photoperiod, increasing the sucrose concentration and including cytokinin in the medium, partial sealing promoted conspicuous hypertrophy of the lenticels. These responses of potato were prevented if the ethylene absorbant mercuric perchlorate was enclosed together with the cultures.
Glycolytic enzyme inhibitors affect pancreatic cancer survival by modulating its signaling and energetics. (2010)

We conclude that there may be a cross-talk between signaling pathways and glycolysis in regulating pancreatic cancer cell survival and signaling. Thus, a combination of agents that inhibit both energy production and cell signaling may provide a novel and effective approach to target pancreatic cancer effectively.
cdc25 M-phase Inducer (1991)

In this paper, we have described the critical experiments leading to the discovery and analysis of the cdc25 M-phase inducer. We have shown that timing of mitosis is sensitive to the level of cdc25+ expression and that the cellular concentration of p80cdc25 increases as cells approach mitosis. From these observations we conclude that, in S. pombe, rate of accumulation of p80cdc25 plays an important role in determining the timing of mitosis. We postulate that under a given set of conditions, a critical level of p80cdc25 activity is required to undergo mitosis. The actual level that is required can vary depending on ploidy, growth rate, nutritional status of the cell, and perhaps other parameters. These signals may be monitored through the weel pathway leading to tyrosyl phosphorylation of p34cdc2. We have shown that p80cdc25 encodes a phosphate that acts by directly dephosphorylating the Tyr-15 residue of p34cdc2. Our studies strongly indicate that this aspect of the mitotic control network is generally conserved among eukaryotes. It is conceivable, however, that the mode of regulation of cdc25 activity may vary from species to species. Clearly, in S. cerevisiae the cdc25+ homolog, MIH1, in contrast to cdc25+, is not rate-limiting for M-phase onset. It will be important to determine whether the level of cdc25+ homologs in other organisms also oscillates during the cell cycle, or whether their activity is controlled by localization or posttranslational mechanisms, such as phosphorylation. Furthermore, our finding of more than one cdc25+ homolog in a single species suggests an additional level of complexity to the control of M-phase onset by cdc25 in higher eukaryotes that will require further investigation.
Toward A Model Of Children''s Story Comprehension (1972)

How does a person answer questions about children's stories? For example, consider 'Janet wanted Jack's paints. She looked at the picture he was painting and said 'Those paints make your picture look funny.' The question to ask is 'Why did Janet say that?'. We propose a model which answers such questions by relating the story to background real world knowledge. The model tries to generate and answer important questions about the story as it goes along. Within this model we examine two questions about the story as it goes along. Within this model we examine two problems, how to organize this real world knowledge, and how it enters into more traditional linguistic questions such as deciding noun phrase reference.
Integration of a microfluidic chip with a size-based cell bandpass filter for reliable isolation of single cells (2015)

We report a simple, efficient microfluidic array system for reliable isolation of cells. A microfluidic array chip, integrated with a size-based cell bandpass filter, provides the unprecedented capability of organizing single cells from a population containing a wide distribution of sizes.
Minimal fuzzy memberships and rules using hierarchical genetic algorithms (1998)

A new scheme to obtain optimal fuzzy subsets and rules is proposed. The method is derived from the use of genetic algorithms, where the genes of the chromosome are classified into two different types. These genes can be arranged in a hierarchical form, where one type of gene controls the other. The effectiveness of this genetic formulation enables the fuzzy subsets and rules to be optimally reduced and, yet, the system performance is well maintained. In this paper, the details of formulation of the genetic structure are given. The required procedures for coding the fuzzy membership function and rules into the chromosome are also described. To justify this approach to fuzzy logic design, the proposed scheme is applied to control a constant water pressure pumping system. The obtained results, as well as the associated final fuzzy subsets, are included in this paper. Because of its simplicity, the method could lead to a potentially low-cost fuzzy logic implementation.
Treatment of water turbidity and bacteria by using a coagulant extracted from Plantago ovata (2014)

A biocoagulant was successfully extracted from Plantago ovata by using an FeCl3-induced crude extract (FCE). The potential of FCE to act as a natural coagulant was tested for clarification using the turbid water of a river. Experimental tests were performed to evaluate the effects of turbidity concentration, coagulant quantity, water pH, and humic acid concentration on the coagulation of water turbidity by FCE. The maximum turbidity removal was occurred at water pH<8. At the optimum dosage of FCE, only 0.8 mg/L of dissolved organic carbon was released to the treated water. An increase in the humic acid led to the promotion of the water turbidity removal. Results demonstrated that the FCE removed more than 95.6% of all initial turbidity concentrations (50–300 NTU). High bacteriological quality was achieved in the treated water. FCE as an eco-friendly biocoagulant was revealed to be a very efficient coagulant for removing turbidity from waters.
Underground condensation of humid air : a solar driven system for irrigation and drinking-water production (2001)

The objective was to investigate the feasibility of using warm, humid air for subsurface irrigation and drinking water production. By letting air flow over the water surface in a solar still with saline or polluted water, vapour mixed with the air and saturated it. The vapour-saturated airflow was conducted down into buried pipes, where the air gradually cooled and the water precipitated along the pipe surface. For the irrigation system, drainage pipes were used, in which the condensed water penetrated the slits out to the soil. Replacing the drainage pipes with common PVC-pipes resulted in a system for drinking-water production, where the condensed water could be collected at the end of the pipes. In order to drive the air through the pipes, a fan was used in the irrigation system and a solar chimney in the drinking-water system. To visualise the cooling process in a buried pipe and the temperature distribution in the soil, a small-scale field test was conducted at the Çukurova University in Adana, Turkey. A secondary purpose was to get a feeling for the planning and execution process of a field experiment. The designed irrigation system was found to be more water- efficient, involve less transportation and be a sustainable solution. In addition, the economic estimations showed that condensation irrigation system has the potential of being competitive with traditional irrigation methods.
The Three-Dimensional Structure of DNA (1982)

The Hippo pathway was initially discovered in Drosophila melanogaster as a key regulator of tissue growth. It is an evolutionarily conserved signaling cascade regulating numerous biological processes, including cell growth and fate decision, organ size ...Read More
Oil pest in the rainforest? The oil palm boom in indonesia and malaysia (2006)

ABSTRACT\nDuring the last decades no other tropical crop has been similarly successful as the oil palm. This is particularly true for Indonesia and Malaysia, that contribute about 85% to the total palm oil production of the world. Palm oil and palm kernel oil are important ingredients for the various foodstuffs and also play a leading role in the oleochemical industry. The main reasons for this success are the manifold usability, the high productivity and the reasonable price. Economists and politicians praise the enormous potential of the palm oil industry for economic growth and food security, as well as for rural employment and poverty alleviation in developing countries. There are, however, also critical voices: the oil palm boom is made responsible for the destruction of rainforests, the decrease of biodiversity, the pollution of rivers, the rise of forest fires and the displacement of local communities. The present article aims at discussing and evaluating these two positions.\n\nKeywords: Oil palms, palm oil, nucleus estates, rain forest destruction, rural employment
Platform and experimentation of secure service location with P2P/Client-Server over ad hoc networks (2009)

Ad hoc networking is considered as an inexpensive solution for easy and fast wireless network coverage. However, for real service deployment, security and availability in such networks are still under research even though some experimentation has shown its viability. Additionally, peer-to-peer (P2P) networking has emerged as a key technology to enable resource sharing among users. As a result, the load charge on servers can be reduced by using P2P, but this approach presents a drawback related to the services availability; when a peer is not connected, its resources are not reachable. Alternatively, Client-Server architecture provides a centralized approach; but a high demand on client requests might deteriorate service response and capacity. In the case of ad hoc networks, offering services securely is even more challenging since all nodes are anonymous until being authenticated. In this paper, we propose to offer a secure location of services in an ad hoc environment. We focused on the development of a proxy-based solution to combine a P2P-client/server network overlay in order to provide securely the location information of network services (e.g. AAA service, Kerberos) and to set a platform that can include application services (e.g. multimedia content service). More precisely, we deployed a network overlay P2P platform using JXTA; a set of peer to peer protocols, and we developed simple peer nodes and a proxy server for providing and ensuring service access control. Other security services can also be deployed such as Kerberos, PKI, among others. In our platform, the JXTA was combined; through the proxy server, with a distributed Radius AAA server to perform authentication tasks prior to discovering the location of the required services in the ad hoc network. We added encryption and message authentication code mechanisms to provide a complete secured solution. GPS Bluetooth devices were used to obtain nodes location but other location systems are also possible. Finally, a detailed description of the system architecture and platform is provided describing all the modular components as well as numerical results derived from a simple test bed.
Valacyclovir for the Prevention of Cytomegalovirus Disease after Renal Transplantation (1999)

Prophylactic treatment with valacyclovir is a safe and effective way to prevent CMV disease after renal transplantation.
The ocular pulse and intraocular pressure as a screening test for carotid artery stenosis. (1985)

The ocular pulse and applanation tension were measured with a recording applanation tonometer in 38 patients suspected of having internal carotid artery stenosis. Abnormalities of the ocular pulse amplitude, intraocular pressure, or combinations of these two measurements were found in 23 (82%) of 28 patients who were subsequently found to have angiographic evidence of 50% or more stenosis of one or both internal carotid arteries. Of 10 patients without angiographic evidence of carotid stenosis the ocular pulse amplitude, intraocular pressure, or both were abnormal in five, but two patients had an ocular cause for abnormality and two of the remaining three had evidence of carotid disease in the form of atheromatous plaques. These results suggest that measurement of the amplitude of the ocular pulse in addition to the intraocular pressure can predict the presence of carotid artery stenosis and indicate the need for further investigation. If a tonometer capable of measuring the pulse amplitude was used routinely in ophthalmic examinations, it would provide a useful screening test for the early diagnosis and treatment of carotid artery disease and might thereby reduce the frequency of strokes.
Power draining prevention in Ad-Hoc Sensor networks using sensor network encryption protocol (2014)

Wireless Ad-Hoc Sensor networks have a wide variety of applications, including surveillance of critical infrastructure, safety monitoring, and many health-care applications. There is a need for secure communication as sensor networks are mostly deployed in such security and safety critical environments. Previous security mechanisms focus primarily on denial of service communication at the routing or medium access control levels. The resource depletion attacks known as vampire attacks, permanently disables the network by quickly draining the node's battery power. The vampire attacks which are difficult to detect and are easy in spreading. The existing secure routing protocols such as Ariadne, SAODV and SEAD do not protect against vampire attacks. A sensor network encryption protocol using boundary recognition technique is introduced to prevent an instance of resource depletion attack by recursive grouping algorithm and jump point algorithm so that an accurate path is produced to resist the vampire attacks during packet forwarding phase.
Investigation of optimum energies for chest imaging using film–screen and computed radiography (2005)

The purpose of the study was to compare the image quality of film-screen (FS) and computed radiography (CR) for adult chest examinations across a range of beam energies. A series of images of the CDRAD threshold contrast detail detection phantom were acquired for a range of tube potential and exposure levels with both CR and FS. The phantom was placed within 9 cm of Perspex to provide attenuation and realistic levels of scatter in the image. Hardcopy images of the phantom were scored from a masked light-box by two scorers. Threshold contrast indices were used to calculate a visibility index (VI). The relationships between dose and image quality for CR and for FS are fundamentally different. The improvements in VIs obtained using CR at 75 kVp and 90 kVp were found to be statistically significant compared with 125 kVp at matched effective dose levels. The relative performance of FS and CR varies as a function of energy owing to the different k-edges of each system. When changing from FS to CR, the use of lower tube potentials may allow image quality to be maintained whilst reducing effective dose. A tube voltage of 90 kVp is indicated by this work, but may require clinical verification.
Acute Pain after Thoracic Surgery Predicts Long-Term Post-Thoracotomy Pain (1996)

Aggressive management of early postoperative pain may reduce the likelihood of long-term post-thoracotomy pain.
Aseptic Bulk Handling of Citrus Juices and Concentrates (1989)

This presentation is based upon FR MFG Corporation’s extensive experience in bulk storage of tomato products and the application of its knowledge to citrus in a current Fran Rica installation in Morocco. Paper published with permission.
Anion Exchangeable Layered Silicates Modified with Ionic Liquids on the Interlayer Surface (2010)

Novel layered materials with two-dimensionally arranged anion exchangeable sites in the interlayer space were prepared by immobilization of imidazolium chloride salts (1-butyl (or 1-octyl)-3-(3-triethoxysilylpropyl)-4,5-dihydroimidazolium chloride, abbreviated as BimSi(OEt)3Cl or OimSi(OEt)3Cl, respectively) containing terminal triethoxysilyl groups onto layered octosilicate via silylation. More than 80% of SiOH/SiO− groups on the silicate layers were silylated and they are denoted as Bim-Oct and Oim-Oct. The cation exchangeable sites on octosilicate were stoichiometrically converted to anion exchangeable sites. The confronting arrangement of SiOH/SiO− groups on octosilicate is essential for this stoichiometric conversion because the silylation reagents ideally react with the surface SiOH/SiO− groups to form bidentate immobilization on octosilicate. The anion exchangeable capacity of the silylated materials is around 2 mmol g−1. The affinity of these materials for Cl−, Br−, I−, and NO3− is quite different from those of conventional anion exchangeable layered double hydroxides (LDHs). Bim-Oct is stable at pH 1.0, which is in clear contrast to the behavior of LDHs. Bim-Oct exhibits a high capacity for sorption of sulfasalazine, a bulky prodrug. The release behavior of the accommodated sulfasalazine is largely dependent on the pH values of simulated gastric and intestinal fluids, suggesting that these novel layered anion exchangers are potentially applicable to drug delivery systems.
Study and experiments on extended-beacon wavefront detection for adaptive optics (2001)

An extended beacon wavefront detection method based on H S sensor is discussed In this method, the optical structure of a traditional H S sensor is modified by adding a field diaphragm to eliminate the problem of overlap among different sub aperture images on detection plan, and it measures the wavefront slope difference between two sub apertures with a fast correlation algorithm, in which a 2D correlation is reduced to 1D one and SSDA is adopted Optical experiments have demonstrated the feasibility of this method and thus shown that when modified, H S sensors can be used to detect wavefront produced by extended beacons as well
Role of Rapsyn Tetratricopeptide Repeat and Coiled-coil Domains in Self-association and Nicotinic Acetylcholine Receptor Clustering (2001)

Rapsyn, a 43-kDa peripheral membrane protein of skeletal muscle, is essential for clustering nicotinic acetylcholine receptors (nAChR) in the postsynaptic membrane. Previous studies with rapsyn NH(2)-terminal fragments fused to green fluorescent protein, expressed in 293T cells along with nAChRs, establish the following: Rapsyn-(1-90), containing the myristoylated amino terminus and two tetratricopeptide repeats (TPRs), was sufficient for self-association at the plasma membrane; rapsyn-(1-287), containing seven TPRs, did not cluster nAChRs; whereas rapsyn-(1-360)(,) containing a coiled-coil domain (rapsyn-(298-331)), clustered nAChRs. To further analyze the role of rapsyn structural domains in self-association and nAChR clustering, we have characterized the clustering properties of additional rapsyn mutants containing deletions and substitutions within the TPR and coiled-coil domains. A mutant lacking the coiled-coil domain alone (rapsyn-(black triangle288-348)), failed to cluster nAChRs. Within the coiled-coil domain neutralization of the charged side chains was tolerated, while alanine substitutions of large hydrophobic residues resulted in the loss of nAChR clustering. Rapsyn self-association requires at least two TPRs, as a single TPR (TPR1 or TPR2 alone) was not sufficient. While TPRs 1 and 2 are sufficient for self-association, they are not necessary, as TPRs 3-7 also formed clusters similar to wild-type rapsyn. Fragments containing TPRs co-localized with full-length rapsyn, while the expressed coiled-coil or RING-H2 domain did not. These results are discussed in terms of a homology model of rapsyn, based on the three-dimensional structure of the TPR domain of protein phosphatase 5.
Integrating Groupware and Workflow in a Public Administration (1997)

S.309-312 (Vol. 1)
Farnesyltransferase inhibitor, R115777, reverses the resistance of human glioma cell lines to ionizing radiation (2002)

We investigated for the first time the ability of farnesyltransferase inhibitors (FTI) to radiosensitize human glioma. For this, human glioma cell lines were treated with the specific FTI, R115777, 48 hr prior to a 2Gy irradiation. The treatment with R115777 decreased by 45% the SF2 value of the more radioresistant glioma cell lines (SF763 and U87) without any significant effect on the radioresistance of the radiosensitive ones (SF767 and U251-MG). This radiosensitizer effect was due to the induction of post-mitotic necrotic cell death. We then tested the hypothesis that wild-type Ras or RhoB, which has been proposed as potential FTI target, could control the glioma radioresistance. For this, we expressed inducible dominant negative forms of Ras (RasN17) and RhoB (RhoBN19) in radioresistant U87 glioma cell line and analyzed the survival after irradiation of the obtained clones. While blocking Ras pathways by expression of RasN17 did not affect the SF2 value of the U87 glioma cell line, the expression of RhoBN19 dramatically reduced the cell survival after irradiation of these cells. Taken together, these data demonstrated that RhoB, but not Ras, is implicated in glioma radioresistance. Furthermore, the R115777 differential radiosensitizer effect underlines the potential therapeutic interest of using this drug as a radiosensitizer of human glioma.
Chaos in a feedback Fabry-Perot interferometer (1994)

A novel hybrid chaotic system composed of a laser diode source and a Fabry-Perot interferometer with an electrical feedback is proposed. The delayed-differential equation describing the system input-output relation is derived and studied by numerical simulations. The instability of the output power from the laser diode is investigated experimentally and its behavior is proved to be chaotic. The comparison between the theoretical analysis and the experimental results shows good agreement.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
An inorganic grey solution (1946)

L. C. Thomson, Trans. Faraday Soc., 1946, 42, 663 DOI: 10.1039/TF9464200663