Miracle-dz/UniFAR-FTUs huggingface dataset:
Continuous SSCF of AFEX™ pretreated corn stover for enhanced ethanol productivity using commercial enzymes and Saccharomyces cerevisiae 424A (LNH‐ST)

High productivity processes are critical for commercial production of cellulosic ethanol. One high productivity process—continuous hydrolysis and fermentation—has been applied in corn ethanol industry. However, little research related to this process has been conducted on cellulosic ethanol production. Here, we report and compare the kinetics of both batch SHF (separate hydrolysis and co‐fermentation) and SSCF (simultaneous saccharification and co‐fermentation) of AFEX™ (Ammonia Fiber Expansion) pretreated corn stover (AFEX™‐CS). Subsequently, we designed a SSCF process to evaluate continuous hydrolysis and fermentation performance on AFEX™‐CS in a series of continuous stirred tank reactors (CSTRs). Based on similar sugar to ethanol conversions (around 80% glucose‐to‐ethanol conversion and 47% xylose‐to‐ethanol conversion), the overall process ethanol productivity for continuous SSCF was 2.3‐ and 1.8‐fold higher than batch SHF and SSCF, respectively. Slow xylose fermentation and high concentrations of xylose oligomers were the major factors limiting further enhancement of productivity. Biotechnol. Bioeng. 2013; 110: 1302–1311. © 2012 Wiley Periodicals, Inc.
Factors identifying the probability of further haemorrhage after acute upper gastrointestinal haemorrhage

Ninety‐five (24 per cent) of 389 admissions with acute upper gastrointestinal haemorrhage had further haemorrhage. An analysis of factors leading to further haemorrhage was undertaken by considering patients' clinical history, physical state on admission and endoscopic findings. The risk of further haemorrhage was significantly greater in patients bleeding from oesophageal varices or peptic ulcer and in those patients who were sober, shocked or anaemic on admission. Overall, those over 60 years of age were more likely to rebleed, but this difference was not apparent in relation to endoscopic source of blood loss.
On the Moments of the Severity of Ruin in the Delayed Renewal Risk Model under Heavy-Tailed Claims

Let A_D(u) be the deficit at ruin in the delayed renewal risk model, where $u$ is the initial capital of the company. Under the assumption that the equilibrium distribution of the claim size belongs to the subexponential class, this paper obtains an asymptotic formula for the φ-moment of A_D(u). This result improves the related works in the recent literature.
An improved scheme based on Physical-layer Network Coding

In the wireless communication system, interference is considered harmful. Wireless networks strive to avoid scheduling multiple transmissions at the same time in order to prevent interference. While Physical layer Network Coding (PNC) was proposed to embrace interference in order to improve throughput performance. During the second stage of PNC, the intermediate node broadcast the mapping signal to all of destinations, and PNC uses the TDM in order to avoid the interference from same frequency. As a result, when the user receives the mapping signal from the relay station, we could not send the second frame. In this paper, an improved scheme based on PNC is proposed in Two-way system. The paper adopts the Paired Communication Multiple Access (PCMA) idea to handle the mixed signal in the same slot, and implements the scheme that the sender could send the frames continuously. Extensive simulation studies show that the new Continuous PNC scheme is feasible and improves the communication throughput effectively by 60%.
Building Mathematical Model for Restoring Processes Tree during Container Live Migration

This paper provides an attempt to solve the problem of restoring Linux processes tree during container live migration by creation a mathematical model describing operations, which are performed with container processes tree while container works. During live migration of the container, the state of each process in the container processes tree is saved and then the tree is restored on another node. Restoring includes determining the order of operations that should be performed in the container to create processes tree with the same state, which is a complex operation. Errors during it make future behavior of the container unpredictable and can cause serious issues. In this paper, matrix representation of processes tree will be introduced and a mathematical model of operations on processes will be created.
Firing cell repertoire during carbachol‐induced theta rhythm in rat hippocampal formation slices

One hundred and seven cells were recorded extracellularly in hippocampal formation (HPC) slices during carbachol‐induced theta. The data obtained provided evidence of a population of HPC neurons which, when activated cholinergically, participate in the generation of in vitro theta. The activity patterns of in vitro recorded theta‐related cells were shown to be similar to those of theta‐related cells recorded in vivo and cells recorded in vitro during cholinergically induced theta, and non‐theta intervals were successfully classified according to previously developed criteria for in vivo recorded theta‐related cells. The current in vitro experiments showed that, in addition to theta‐on and theta‐off cells, the HPC contained cells that were probably involved in programming the appearance and duration of theta epochs and the intervals between theta epochs. These novel types of cells were termed ’gating cells’.
Brain vasopressin is an important regulator of maternal behavior independent of dams' trait anxiety

The neuropeptide arginine vasopressin (AVP) is arguably among the most potent regulators of social behaviors in mammals identified to date. However, only the related neuropeptide oxytocin (OXT) has been shown to promote maternal behavior. Here, we assess the role of AVP in maternal care, in particular in arched back nursing, pup retrieval, and pup contact by using complementary pharmacological and genetic approaches. Also, experiments were performed in rat dams with differences in trait anxiety, i.e., rats bred for either high (HAB) or low (LAB) anxiety-related behavior as well as nonselected (NAB) dams. Viral vector-mediated up-regulation of AVP V1a receptors (AVP-Rs) within the medial preoptic area of lactating NAB rats and chronic central AVP treatment of NAB and LAB dams improved, whereas local blockade of AVP-R expression by means of antisense oligodeoxynucleotides or central AVP-R antagonism impaired, maternal care in NAB dams. Also, in HAB rats with a genetically determined elevated brain AVP activity, intrinsically high levels of maternal care were reversed by blockade of AVP-R actions. Treatment-induced impairment of AVP-mediated maternal behavior increased adult emotionality and impaired social interactions in male offspring of NAB dams. These findings provide direct evidence for an essential and highly potent role of brain AVP in promoting maternal behavior, which seems to be independent of the dam's trait anxiety.
Nociceptor plasticity: A closer look

Nociceptors are receptors specifically involved in detecting a tissue damage and transducing it in an electrical signal. Nociceptor activation provoked by any kind of acute lesion is related to the release of several mediators of inflammation, within the framework of a process defined as “peripheral sensitization. ” This results in an exaggerated response to the painful stimulus, clinically defined as “primary hyperalgesia. ” The concept of “neuroplasticity” may explain the adaptive mechanisms carried out by the Nervous System in relation to a “harmful” damage; also, neuroplasticity mechanisms are also fundamental for rehabilitative intervention protocols. Here we review several studies that addressed the role of different receptors and ionic channels discovered on nociceptor surface and their role in pain perception. The changes in expression, distribution, and functioning of receptors and ionic channels are thought to be a part of the neuroplasticity property, through which the Nervous System constantly adapts to external stimuli. Moreover, some of the reviewed mediators are also been associated to “central sensitization,” a process that results in pain chronicization when the painful stimulation is particularly prolonged or intense, and lastly leads to the memorization of the uncomfortable painful perception.
Development of 400 Vdc power distribution system and 400 Vdc output rectifier

We outline the specifications and performance of a 400 Vdc power distribution system with a 400 Vdc output rectifier. In 2008, The NTT-group have began developing a 400 Vdc distribution system for reducing power consumption and the usage of materials, such as copper in power cables [1]. In conjunction with this project, NTT Facilities has developed prototype rectifiers, a prototype voltage compensator used during interruption periods, and a prototype battery charger. These exhibit higher efficiency than conventional ones and also exhibit high output regulation to adapt charge condition required by valve-regulated lead acid batteries for backup.
Prepregnancy cardiovascular risk factors as predictors of pre-eclampsia: population based cohort study

Objective To examine the effect of cardiovascular risk factors before pregnancy on risk of pre-eclampsia. Design Population based prospective study. Setting Linkage between a Norwegian population based study (Nord-Tr�ndelag health study, HUNT-2) and Norway's medical birth registry. Participants 3494 women who gave birth after participating in the Nord-Tr�ndelag health study at baseline; of whom 133 (3.8%) delivered after a pre-eclamptic pregnancy. Main outcome measure Odds ratio of developing pre-eclampsia. Results After adjustment for smoking; previous pre-eclampsia; parity; maternal age, education, and socioeconomic position; and duration between baseline measurements and delivery, positive associations were found between prepregnancy serum levels of triglycerides, cholesterol, low density lipoprotein cholesterol, non-high density lipoprotein cholesterol, and blood pressure and risk of pre-eclampsia. The odds ratio of developing pre-eclampsia for women with baseline systolic blood pressures greater than 130 mm Hg (highest fifth) was 7.3 (95% confidence interval 3.1 to 17.2) compared with women with systolic blood pressures less than 111 mm Hg (lowest fifth). Similar results were found for nulliparous and parous women. Women who used oral contraceptives at baseline had half the risk of pre-eclampsia compared with never or former users (0.5, 0.3 to 0.9). Conclusion Women with cardiovascular risk factors may be predisposed to pre-eclampsia.
Clinical uses of recombinant human thyrotropin

Recombinant human thyroid-stimulating hormone (rhTSH), used to enhance diagnostic radioiodine whole body scanning and thyroglobulin testing, has dramatically altered the management of patients with thyroid cancer. Withdrawal from thyroid hormone suppression therapy and subsequent hypothyroidism is no longer the only safe and effective method for thyroid cancer surveillance. Currently, rhTSH is only approved for the monitoring of low-risk patients with well-differentiated thyroid cancer and radioactive iodine administration, in selected cases. Additional applications of rhTSH include enhancing the sensitivity of positron emission tomography in thyroid cancer, the management of multinodular goiter, and dynamic testing of thyroid reserve. The diagnostic and therapeutic role of rhTSH in these areas is discussed in this review.
YKL-40 Protein Levels and Clinical Outcome of Human Endometrial Cancer

The secreted glycoprotein YKL-40 is a member of the chitinase family and elevated serum YKL-40 levels have been reported to be associated with reduced survival in several malignancies, including endometrial cancer. This study investigated immunoreactivity to YKL-40 protein and its prognostic implications in endometrial cancer. Levels of YKL-40 protein in normal endometrium (n = 42), endometrial hyperplasia (n = 40) and endometrial adeno carcinoma (n = 68) were examined using immunohistochemistry. YKL-40 immunoreactivity was significantly higher in endometrial adenocarcinoma compared with hyperplastic and normal endo metrium. In addition, high immuno reactivity of YKL-40 protein was associated with advanced stage, high histological grade, lymph node metastasis and lympho vascular invasion. Moreover, positive immunoreactivity for YKL-40 was a significant predictor of poor prognosis, as measured by estimated progression-free survival and estimated overall survival, compared with negative immunoreactivity. In conclusion, high YKL-40 immuno reactivity in endometrial cancer may be associated with poor prognosis.
Survival and Dormancy of Mycobacterium aviumsubsp. paratuberculosis in theEnvironment

ABSTRACT The survival of Mycobacterium avium subsp. paratuberculosis was studied by culture of fecal material sampled at intervals for up to 117 weeks from soil and grass in pasture plots and boxes. Survival for up to 55 weeks was observed in a dry fully shaded environment, with much shorter survival times in unshaded locations. Moisture and application of lime to soil did not affect survival. UV radiation was an unlikely factor, but infrared wavelengths leading to diurnal temperature flux may be the significant detrimental component that is correlated with lack of shade. The organism survived for up to 24 weeks on grass that germinated through infected fecal material applied to the soil surface in completely shaded boxes and for up to 9 weeks on grass in 70% shade. The observed patterns of recovery in three of four experiments and changes in viable counts were indicative of dormancy, a hitherto unreported property of this taxon. A dps-like genetic element and relA, which are involved in dormancy responses in other mycobacteria, are present in the M. avium subsp. paratuberculosis genome sequence, providing indirect evidence for the existence of physiological mechanisms enabling dormancy. However, survival of M. avium subsp. paratuberculosis in the environment is finite, consistent with its taxonomic description as an obligate parasite of animals.
Control of fibroblast growth factor receptor kinase signal transduction by heterodimerization of combinatorial splice variants

A differentiated liver cell (HepG2), which exhibits a dose-dependent growth-stimulatory and growth-inhibitory response to heparin-binding fibroblast growth factor type 1 (FGF-1), displays high- and low-affinity receptor phenotypes and expresses specific combinatorial splice variants alpha 1, beta 1, and alpha 2 of the FGF receptor (FGF-R) gene (flg). The extracellular domains of the alpha and beta variants consist of three and two immunoglobulin loops, respectively, while the intracellular variants consist of a tyrosine kinase (type 1) isoform and a kinase-defective (type 2) isoform. The type 2 isoform is also devoid of the two major intracellular tyrosine autophosphorylation sites (Tyr-653 and Tyr-766) in the type 1 kinase. An analysis of ligand affinity, dimerization, autophosphorylation, and interaction with src homology region 2 (SH2) substrates of the recombinant alpha 1, beta 1, and alpha 2 isoforms was carried out to determine whether dimerization of the combinatorial splice variants might explain the dose-dependent opposite mitogenic effects of FGF. Scatchard analysis indicated that the alpha and beta isoforms exhibit low and high affinity for ligand, respectively. The three combinatorial splice variants dimerized in all combinations. FGF enhanced dimerization and kinase activity, as assessed by receptor autophosphorylation. Phosphopeptide analysis revealed that phosphorylation of Tyr-653 was reduced relative to phosphorylation of Tyr-766 in the type 1 kinase component of heterodimers of the type 1 and type 2 isoforms. The SH2 domain substrate, phospholipase C gamma 1 (PLC gamma 1), associated with the phosphorylated type 1-type 2 heterodimers but was phosphorylated only in preparations containing the type 1 kinase homodimer. The results suggest that phosphorylation of Tyr-653 within the kinase catalytic domain, but not Tyr-766 in the COOH-terminal domain, may be stringently dependent on a trans intermolecular mechanism within FGF-R kinase homodimers. Although phosphotyrosine 766 is sufficient for interaction of PLC gamma 1 and other SH2 substrates with the FGF-R kinase, phosphorylation and presumably activation of substrates require the kinase homodimer and phosphorylation of Tyr-653. We propose that complexes of phosphotyrosine 766 kinase monomers and SH2 domain signal transducers may constitute unactivated presignal complexes whose active or inactive fate depends on homodimerization with a kinase or heterodimerization with a kinase-defective monomer, respectively. The results suggest a mechanism for control of signal transduction by different concentrations of ligand through heterodimerization of combinatorial splice variants from the same receptor gene.
Tau filaments from human brain and from in vitro assembly of recombinant protein show cross-β structure

Abnormal filaments consisting of hyperphosphorylated microtubule-associated protein tau form in the brains of patients with Alzheimer's disease, Down's syndrome, and various dementing tauopathies. In Alzheimer's disease and Down's syndrome, the filaments have two characteristic morphologies referred to as paired helical and straight filaments, whereas in tauopathies, there is a wider range of morphologies. There has been controversy in the literature concerning the internal molecular fine structure of these filaments, with arguments for and against the cross-β structure demonstrated in many other amyloid fibers. The difficulty is to produce from brain pure preparations of filaments for analysis. One approach to avoid the need for a pure preparation is to use selected area electron diffraction from small groups of filaments of defined morphology. Alternatively, it is possible to assemble filaments in vitro from expressed tau protein to produce a homogeneous specimen suitable for analysis by electron diffraction, x-ray diffraction, and Fourier transform infrared spectroscopy. Using both these approaches, we show here that native filaments from brain and filaments assembled in vitro from expressed tau protein have a clear cross-β structure.
The mitosome, a novel organelle related to mitochondria in the amitochondrial parasite Entamoeba histolytica

Ultrastructural analysis of Entamoeba histolytica reveals that this intestinal human pathogen lacks recognizable mitochondria, but the presence in its genome of genes encoding proteins of mitochondrial origin suggests the existence of a mitochondrially derived compartment. We have cloned the full‐length E. histolytica gene encoding one such protein, chaperonin CPN60, and have characterized its structure and expression. Using an affinity‐purified antibody raised against recombinant protein, we have localized native E. histolytica CPN60 to a previously undescribed organelle of putative mitochondrial origin, the mitosome. Most cells contain only one mitosome, as determined by immunofluorescence studies. Entamoeba histolytica CPN60 has an amino‐terminal extension reminiscent of known mitochondrial and hydrogenosomal targeting signals. Deletion of the first 15 amino acids of CPN60 leads to an accumulation of the truncated protein in the cytoplasm. However, this mutant phenotype can be reversed by replacement of the deleted amino acids with a mitochondrial targeting signal from Trypanosoma cruzi HSP70. The observed functional conservation between mitochondrial import in trypanosomes and mitosome import in Entamoeba is strong evidence that the E. histolytica organelle housing chaperonin CPN60 represents a mitochondrial remnant.
Activation of NADPH Oxidase During Progression of Cardiac Hypertrophy to Failure

Abstract—Increased reactive oxygen species (ROS) production is implicated in the pathophysiology of left ventricular (LV) hypertrophy and heart failure. However, the enzymatic sources of myocardial ROS production are unclear. We examined the expression and activity of phagocyte-type NADPH oxidase in LV myocardium in an experimental guinea pig model of progressive pressure-overload LV hypertrophy. Concomitant with the development of LV hypertrophy, NADPH-dependent O2− production in LV homogenates, measured by lucigenin (5 &mgr;mol/L) chemiluminescence or cytochrome c reduction assays, significantly and progressively increased (by ≈40% at the stage of LV decompensation;P <0.05). O2− production was fully inhibited by diphenyleneiodonium (100 &mgr;mol/L). Immunoblotting revealed a progressive increase in expression of the NADPH oxidase subunits p22phox, gp91phox, p67phox, and p47phox in the LV hypertrophy group, whereas immunolabeling studies indicated the presence of oxidase subunits in cardiomyocytes and endothelial cells. In parallel with the increase in O2− production, there was a significant increase in activation of extracellular signal–regulated kinase 1/2, extracellular signal–regulated kinase 5, c-Jun NH2-terminal kinase 1/2, and p38 mitogen-activated protein kinase. These data indicate that an NADPH oxidase expressed in cardiomyocytes is a major source of ROS generation in pressure overload LV hypertrophy and may contribute to pathophysiological changes such as the activation of redox-sensitive kinases and progression to heart failure.
Entheses and enthesitis: a histopathologic review and relevance to spondyloarthritides

There are two types of entheses: fibrous, by Sharpey's fibers in membranous bone, and fibrocartilaginous, on endochondral bone, with discontinuous cement lines at the interface between insertion and bone. The connection of hyaline cartilage to subchondral bone is a kind of fibrocartilaginous enthesis. Fibrocartilages are structurally, chemically, and biomechanically intermediate between tendon and cartilage. Enthesitis is not the sole pathologic feature of spondyloarthritides. Synovitis and subchondral bone marrow changes outside the ligamentous insertions, and cartilage proliferation, are important too. In the subentheseal bone marrow and in the synovium, CD8+ T cells play a central role. Imaging of early changes is better achieved by ultrasonography and even better by magnetic resonance imaging than by radiography. No single immunologic target can be identified. The G1 domain of aggrecan is the best candidate, but this does not apply to fibrous entheses. In these complex pathologic conditions, no single abnormality can thus far be designated as a unique hallmark.