In the present study, we used the HHP-EH process, which has sever

In the present study, we used the HHP-EH process, which has several advantages such as higher extraction yield, user friendly, low energy consumption, low temperature,

and no use of chemicals. The results obtained in the present study indicate that the highest extractability selleck of CS in the antler cartilage is related to papain digestion under HHP (100 MPa). The extractability of CS liberated from the antler tissues was estimated from the amount of uronic acid recovered from the papain digest. The estimated extractability under hydrostatic pressure was 6-fold higher at 100 MPa than that obtained at ambient pressure (0.1 MPa) at 50 °C during the 4 h incubation time (Fig. 1). The results show that the catalytic effect of papain is accelerated by

HHP, indicating that the optimal conditions of pressure, incubation time and temperature are obtained at 100 MPa for 4 h at 50 °C, respectively. As a result, the HHP-EH process shows that the extractability of CS is approximately 95% of total uronic acid in antler cartilage tissue as compared to less than 20% extractability from a previous report, STA-9090 research buy which used papain for 24 h at ambient pressure on the 0.5 M sodium acetate soluble fraction from antlers [30]. The low extractability was mainly due to the multiple steps involved in isolating CS from antler cartilage with Dimethyl sulfoxide a high risk of CS loss. In the present study, the high extractability of CS indicates that the mild pressure (100 MPa) is not only directly related to water penetration into the structure of collagen, proteoglycan and other proteins found in extracellular matrix but also, more importantly, to accelerate the present process of papain treatment. Meersman et al. (2006) [18] reported that the high pressure increases the rate of mass transfer, enhances water penetration into the solid material and disrupts cell membranes to release intracellular products.

The rationale behind HHP effects has three main factors: the energy, the densification effect and the chemical reactivity [24]. Due to compressibility, the difference between final and initial volumes under high pressure is always negative (ΔV value <0), leading to low energy and a densification effect. However, this does not give any prediction of the volume changes of chemical reactions in relation to the equilibrium between the states (reaction volume) or the activation volume of the chemical reaction. In addition, the chemical reactivity may be improved by high pressure, inducing an increase in solubility and consequently, the concentration of the solvated species. This phenomenon (electrostriction) leads to the reduction of the average distance between the solvated species, inducing an increase in the kinetic rate of the reaction.

53) This study examined the role of cognitive inhibition and int

53). This study examined the role of cognitive inhibition and intelligence in creativity. It was found that cognitive inhibition, assessed by means of the random motor generation task, shows a positive correlation with various measures of creativity

including quantitative indicators of divergent thinking (i.e., ideational fluency and flexibility) and different self-report measures. This provides further direct evidence that creativity is related to executive functions (e.g., Gilhooly et JQ1 order al., 2007). Cognitive control in terms of the ability to inhibit salient but irrelevant responses appears to substantially facilitate the fluent generation of new ideas. Effective inhibition may be needed to suppress the increasing proactive interference of previous responses in order not to get stuck with initial ideas. It may thus support the active dissociation from prepotent concepts and promote the steady access to unrelated concepts and ideas, allowing for high ideational fluency (cf.,

Benedek et al., in press). The results, however, appear to conflict with the view of creativity as a “disinhibition syndrome” (Eysenck, 1995 and Martindale, 1999). If disinhibition is understood as the ability to fluently generate many different responses or original ideas, then it has to be concluded that this functional type of disinhibition is related to high cognitive inhibition. This may be different from a dysfunctional type of disinhibition, which may rather result in more perseverative behavior and in the inability to break away from common or previous ideas (Ridley, 1994). Intelligence was found to be related to CYC202 mw inhibition and divergent thinking (specifically to ideational originality), but not to self-report measures of RG7420 molecular weight creativity. A latent variable model was used to test whether intelligence acts as a mediator in the relationship of cognitive inhibition and divergent thinking. It revealed that cognitive inhibition specifically drives the fluency and flexibility of idea generation (i.e., the quantitative aspect of ideation), while intelligence has a positive effect on the originality

of ideas (i.e., the qualitative aspect of ideation). This fits nicely to recent evidence showing that intelligence is particularly relevant to creativity, when creativity is defined by originality rather than mere fluency (Nusbaum and Silvia, 2011 and Silvia, in press). Moreover, the findings could be seen in line with the Geneplore model (Finke, Ward, & Smith, 1992), with inhibition being more related to the “generation” stage and intelligence contributing to the “exploration” stage. For the scoring of ideational originality we employed a method that avoids a trivial correlation of fluency and originality (Silvia et al., 2008). Nevertheless, these two measures still show a substantial positive correlation at the latent level. Our model here did not assume a unidirectional relation, as both directions are generally conceivable and thus might be operant.

Consensus sequences were analyzed using the DnaSP 5 19 software (

Consensus sequences were analyzed using the DnaSP 5.19 software (Librado and Rozas, 2009) to calculate nucleotide and haplotype diversity. Molecular analysis of variance (AMOVA) and neutrality tests were calculated using the Arlequin software (Schneider et al., 1999). An intraspecific phylogeny of COI haplotypes was inferred using the network algorithm median-joining in the Network program ( Bandelt et al., 1999). In the alignment of

60 partial COI sequences were observed 19 polymorphic AP24534 sites along 751 bases, all corresponding to silent mutations, resulting in the formation of 15 mitochondrial haplotypes (for GenBank accession numbers see Supplementary material). Table 1 shows the number of D. willistoni specimens from each location analyzed, the COI haplotypes, genetic diversity estimates and Wolbachia learn more infection status. Of the 60 individuals tested, 33 (55%) were positive and 27 (45%) were negative for Wolbachia infection. Infection frequencies varied between populations but there was no discernible geographical pattern ( Fig. 1A). The partial sequence of the wsp gene was identical in 33 amplicons, corresponding to the sequence observed in strains wWil and wAu. This finding differs from the observations by Miller and Riegler (2006), who suggested that Wolbachia would be fixed in continental D. willistoni populations.

Nevertheless, it should be stressed that samples analyzed by those authors were composed mostly by laboratory strains. As previously described for D. melanogaster, there is polymorphism for infection rates in natural populations ( Hoffmann et al., 1994). The relationship between mitochondrial haplotypes and the association with Wolbachia is shown

in Fig. 1B. Haplotype C1 is ancestor of the other haplotypes, is the most frequent total, and is shared across all samples (except for the sample collected in São João do Polêsine). Wolbachia was observed to be associated Reverse transcriptase to 10 of the 15 mitochondrial haplotypes generated. Yet, haplotypes C1, C4 and C9 were detected in both infected and uninfected individuals. The chi-square analysis showed no statistical difference between infected and uninfected in C1 and C4 haplotypes. However, statistically significant difference was found for haplotype C9 (P < 0.02). This haplotype was the most frequent in places where it was sampled (Guaratuba and Laguna) and this may be related to this deviation to a greater number of infected. The highest haplotype diversity was found in the Torres sample, while the lowest was seen in the Laguna sample. AMOVA revealed that 70.63% of variation occurs within populations and 39.98% between populations. The star network arrangement, with several rare haplotypes (C3, C5, C6, C7, C8, C10, C11, C12, C13 and C14) and the low nucleotide diversity indicate populational expansion (Mirol et al., 2008). Analyses of neutrality tests of Tajima D (−1.82193, P < 0.05) and Fu and Li F (−3.52798, P < 0.02), also support this scenario.

cruzi antibody (produced in our laboratory, LBI/IOC-Fiocruz, Braz

cruzi antibody (produced in our laboratory, LBI/IOC-Fiocruz, Brazil), as previously described ( Silva et al., 1999). For confocal microscopy, parasite antigens were revealed with the same anti-T. cruzi antibody except that the secondary antibody goat anti-rabbit immunoglobulin

was labeled with FITC or TRITC (Amersham, England). Astrocytes and microglial cells were revealed with purified anti-glial fibrillary acidic protein (GFAP) antibody (Amersham, England) and purified anti-F4/80 rat antibody (Caltag, USA), respectively. Secondary anti-rat immunoglobulins labeled with FITC or TRITC (Amersham, England) were used to reveal glial cells. For positive controls, heart tissue sections from T. cruzi-infected mice at 30 dpi were used. For negative controls, brain tissue sections from infected mice were subjected to all the steps of the reaction excluding the addition selleck compound library of the primary antibodies. The images were analyzed with a confocal microscope (LSM 410, Zeiss, Germany). The presence of T. cruzi antigens in brain tissue sections was also evaluated with a digital morphometric apparatus. The images were analyzed

with the AnaliSYS Program and the areas containing parasite molecules were identified as amastigote nests in microscopic fields. Three whole sections were analyzed per brain. TNF was assayed with the ELISA sandwich development kit assay from R&D (catalog # 900-k57 lot # 0104054) with rat anti-TNF mAb and a biotin-labeled polyclonal rabbit serum specific for the cytokine. TNF levels were calculated by reference to a standard curve PD-0332991 molecular weight constructed with recombinant cytokine. The sensitivity of below this method was 10 pg/mL. The assay was developed using the 2,2′-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) substrate (Sigma, USA) and the reaction was stopped with 20 μL of 20% sulfuric acid solution. The optical density (OD) was read with a microplate reader set to 405 nm. For reverse transcriptase PCR (RT-PCR), mRNA was isolated from the whole encephalon and heart tissue of the C57BL/6 mice by acid guanidinium thiocyanate–phenol–chloroform

extraction. The RNA STAT-60 reverse transcriptase-PCR conditions, primer sequences used for the detection of TNF, housekeeping gene hypoxanthine–guanine phosphoribosyltransferase (HPRT) and PCR product sizes have been published elsewhere (dos Santos et al., 2001). The PCR products and a molecular weight marker were electrophoresed in 6% polyacrylamide gel and stained with silver nitrate. The densitometry analysis of the gels was conducted on a Densitometer CS-9301PC (Shimadzu, Japan). The PCR data were standardized using mRNA of the housekeeping gene HPRT and fold increases were determined by a comparison with NI controls. For real-time quantitative RT-PCR (RT-qPCR), total RNA from heart and whole brain samples was extracted using TRI Reagent (Sigma–Aldrich, USA).

Among all male variants, 52% consisted in transitions (A/G and C/

Among all male variants, 52% consisted in transitions (A/G and C/T), while 32% were transversions (A/T, A/C, G/T, C/G) (Fig. 3). Meanwhile, 623 variants were detected in females, of which, 85% were SNVs. Among all female variants, 55% consisted in transitions while 31% were transversions Venetoclax nmr (Fig. 3). The full list of SNPs identified for males and females is provided in Table S3 and Table S4, respectively. This study was funded by FONDEFD09I1256 and FONDAP15110027 from CONICYT-Chile.


“Phytoplankton accounts for less than 1% of the photosynthetic biomass on Earth, yet is estimated to contribute half of the world’s net primary production (Field et al., 1998). A minor fraction of the phytoplankton biomass sinks to the sea floor and, if not decomposed in the sediment, can end up as kerogen, the source of future oil and gas reservoirs (Kirchman et al., 2009). The vast majority however is rapidly consumed by higher organisms www.selleckchem.com/products/Adrucil(Fluorouracil).html such as protists, copepods and fish as well as by the prokaryotic fraction of the plankton, the so-called bacterioplankton. Bacterioplankton hence plays a pivotal role in the recycling of phytoplankton biomass and thus controls a substantial fraction of the global carbon flux (Kirchman et al., 2009) in a process that is known as the ‘microbial loop’ (Davies et al., 2012).

Marine phytoplankton is comprised of photosynthetic bacteria such as cyanobacteria, but the bulk of its biomass consists of uni- to pluricellular algae like diatoms and haptophytes. this website Bacterial communities that decompose algal biomass in the pelagic zone are diverse and consist of different heterotrophic taxa with varying ecological strategies (Giovannoni and Stingl, 2005). Several studies based on culture-independent 16S ribosomal RNA gene sequence (16S rDNA) analysis have provided insights into these communities in terms of composition (Gilbert et al., 2012, Romano et al., 2005, Verslyppe

et al., 2010 and Verslyppe et al., 2013), but little is known about the dynamics and functional interactions within such communities. Transcriptome-based approaches have been used in several studies to tackle these questions (Gilbert et al., 2008, Hewson et al., 2009, Poretsky et al., 2005, Poretsky et al., 2009, Poretsky et al., 2010 and Vila-Costa et al., 2010), but it is still not fully understood, how a multitude of eukaryotic and prokaryotic planktonic species coexist in a seemingly homogenous habitat with limited resources (Glöckner and Kottmann, 2011). The relationships between these species range from mutualism to competition and even predation (Romano et al., 2005). Algicidal bacteria are known to affect algal bloom dynamics (Mayali and Azam, 2004), and vice-versa algae release compounds that inhibit bacterial growth (Ribalet et al., 2008). Hence there are plenty of reasons why species get extinct by competition and only a limited number of highly competitive species should prevail.

Consequently, the greater allopreening at roost sites on days whe

Consequently, the greater allopreening at roost sites on days when there had been an extended IGI in selleck the morning is unlikely to be explained by lingering stress from the earlier conflict. One alternative possibility is that returning to the zone of conflict in the evening causes a secondary stress

increase, especially since conflicts reliably occur in the same areas. Previous work has indicated that merely being in a zone of conflict can affect intragroup behavior [16], but here we also found a difference in allopreening depending on the outcome of a conflict occurring many hours earlier. From a functional perspective, allopreening may strengthen social bonds and group cohesion [41] or may be traded in return for some other commodity [42 and 43], such as increased involvement in any future conflict. Green woodhoopoe roosts are crucial for both survival and reproduction [10 and 13]. If intergroup conflict affects the use of such limiting resources, Thiazovivin as suggested by our work here,

then there are likely implications for individual fitness beyond the obvious consequences of injury or death resulting from aggressive interactions themselves [16 and 18]. Moreover, the increasing evidence that intergroup interactions affect intragroup behavior in a variety of species [7, 20 and 37], not only humans [6, 8 and 21], suggests broad evolutionary significance. Although it has long been suggested that conflict with rival groups is a key

selective driver for group dynamics and social structure [2 and 5], previous empirical work on behavior has generally focused on immediate, short-term responses ([6, 7 and 37], but see [9 and 22]). The current study, showing that there can be a lasting impact of individual conflicts beyond the immediate effect Methocarbamol of elevated stress, combined with the possibility that the mere threat of future conflicts also has an influence [16], suggests a stronger mechanism for evolutionary change. Future studies on intergroup conflict will therefore continue to be important in developing our understanding of resource use, sociality, and the evolution of cooperation. A.N.R. conceived the research and collected the data. T.W.F. conducted the statistical analyses. A.N.R. and T.W.F. interpreted the data and cowrote the paper. This study complied with the laws of South Africa, where the data were collected, and was approved by the Science Faculty Animal Ethics Committee, University of Cape Town. We are grateful to Morné du Plessis for access to the study population he originally established and to Andrew Higginson, Christos Ioannou, and two anonymous referees for comments on the manuscript. The data were collected by A.N.R. while supported by a Natural Environment Research Council studentship. “
“Hepatocellular carcinoma (HCC) is the sixth most common cancer in the world.

5% and 23 5% more biomass than WT under the WW, MD and SD treatme

5% and 23.5% more biomass than WT under the WW, MD and SD treatments. The transgenic plants showed higher grain yields than WT plants in both field and tank experiments and under the soil moisture treatments (Fig. 5). SP600125 purchase On average in the field experiment, transgenic plants had 15.5%, 22.4% and 21.0% higher grain yields than WT under WW, MD and SD treatments, respectively. In the tank experiment, transgenic plants had 16.7%, 18.0% and 19.0% higher grain yields than WT under WW, MD and SD treatments, respectively,

indicating an enhanced tolerance to drought in transgenic rice plants. Because the soil drought treatments were imposed beginning at 9 DPA, panicle number per area and spikelet number per panicle were not affected by the treatments (Table 5). In comparison with the WW treatments, the percentages of filled grains and grain weight decreased under both MD and SD treatments, with greater decreases under the SD than under the MD treatment. Under the same soil moisture, especially under the MD and SD treatments, both VX-809 mw PPDK and PCK plants showed a greater percentage of filled grains than WT plants. Grain weight and harvest index varied with genotype and soil moisture treatment. Generally, the PCK plants exhibited higher grain weight and harvest index than WT plants under both MD and SD treatments (Table 5). Photosynthesis is fundamental to biomass

production, but sensitive to drought. Improving photosynthesis-related physiological traits is thought to be a useful approach to increase yield and drought tolerance [10], [32], [33] and [34]. Researchers worldwide have attempted to improve photosynthesis and crop yield by introducing C4 cycle in plants by transgenic approaches [4], [11], [12], [15], [35] and [36]. But there is a longstanding controversy as to whether an increase in leaf-level photosynthesis would increase

yield [37], [38], [39], [40] and [41]. In the present study, transgenic plants overexpressing key C4 enzymes not only had higher photosynthetic rates, but produced higher grain yields than WT plants. Given Bcl-w that the WT cv. Kitaake and the two transgenic plants (PPDK and PCK) have the same genetic background and the only difference is in the expression level of several C4 key enzymes, our results provided direct evidence that increasing photosynthesis could result in a yield increase. The present results agree well with previous reports that transgenic rice plants show improved Pn and yield [4] and [10]. Transgenic plants showed Pn superior to the WT throughout the day and across the different grain filling stages (e.g. at 14 and 21 DPA). Ku et al. [4] observed that improved Pn was caused by increased stomatal conductance and increased internal CO2 concentration. In our study, higher leaf water content was observed for transgenic plants than for WT plants. The high leaf water content would contribute to increased stomatal conductance [42].

It is difficult to distinguish between the multifactorial nature

It is difficult to distinguish between the multifactorial nature of female vs. male osteoporosis. A recently presented subanalysis of the MrOs cohort GDC 941 evaluated

secondary causes of osteoporosis in subjects that had low BMD vs. those that did not have low BMD, and most were similar in terms of their risk factors [41]. It is thus not established that secondary osteoporosis really is more common in men. Men may be less likely to be referred for bone densitometry in the absence of specific risk factors for osteoporosis, and there may be a general tendency by healthcare practitioners to look for the causes of secondary osteoporosis in men more carefully than in women. Use of bone formation (serum procollagen type I N propeptide, sPINP) and bone resorption (serum C-terminal telopeptide Y-27632 of type I collagen, sCTX) markers are recommended by the International Osteoporosis Foundation (IOF) and the International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) as reference analytes for bone turnover markers (BTMs) in clinical studies. Levels of BTMs may predict fracture risk independently from BMD, and may provide data on treatment response and monitoring,

although a stronger evidence base is needed. Conflicting data on the association of BTMs with bone loss and fracture risk in men have been reported. A study in elderly men observed a decreased carboxylated serum osteocalcin to total osteocalcin ratio that was associated with increased subsequent fracture risk [42]. The Dubbo Osteoporosis Study of elderly men reported increased sCTX associated with an increased risk of osteoporotic fractures independent of BMD [43]. Finally, Progesterone the MrOS cohort demonstrated that biochemical markers in men were predictive

of bone loss in a similar manner as in women. Hip and non-spine fractures were associated with increased sPINP and sCTX, but the association no longer held true after adjusting for hip BMD [44]. On the other hand, the MINOS study found that serum concentrations of BTMs were not predictive of fractures [45]. The question of whether BTMs are predictive of accelerated bone loss or fractures in the clinical management of osteoporosis in men remains unanswered. The adoption of international reference standards would help to clarify uncertainties on their clinical use [46]. Men have larger bones compared with women, resulting in greater bone strength. With age, bone size may increase in men by periosteal apposition more than in women, thus further increasing the sex difference in bone size (reviewed in [6]). One of the most noteworthy differences between male and female osteoporosis concerns bone microarchitecture. The patterns of bone loss in men seem to be different from those in women. Earlier trabecular loss was measured in men, with cortical loss starting after the age of 50 years, possibly linked to gonadal steroid decline (sex steroids are further discussed below) [7] and [47].

The authors declare that they have no conflict of interest This

The authors declare that they have no conflict of interest. This work is a part of the Project “Nutraceuticals and Functional Foods Production by using Nano/Biotechnological and Irradiation Processes” and Nanotechnology Research Unit (P.I.

Prof.Dr. Ahmed El-Batal) at Pharmaceutical Microbiology Laboratory in Drug Radiation Research Department and the financial support was provided by NCRRT. “
“The internal transcribed spacer (ITS) sequence of nuclear ribosomal DNA with bi-parental inheritance is currently used widely to determine the genetic diversity of land plants [1], Trametinib purchase [2], [3], [4], [5], [6], [7], [8], [9] and [10]. However, one limitation of species identification using the ITS sequence is that the method has limited resolution in identifying species, especially within closely related taxa [1], [2], [3], [4], [5], [6], [7], [8], [9], [10] and [11]. For instance, the discriminating power of the four recommended DNA markers at the species level in Alnus (Betulaceae) was 10% (rbcL), 31.25% (matK), 63.6% (trnH–psbA), and 76.9% (ITS) [3]. Among the four DNA regions (rbcL, matK, trnH–psbA, and ITS), the ITS sequence has the most variable information, and appears to have limited power to discriminate closely related taxa in Juglandaceae [5].

Hanabusaya and Adenophora sect. Remotiflorae of the family Campanulaceae could buy EPZ015666 not be resolved using ITS sequences [6]. As a result of insufficient morphological information and DNA markers, the development of scientific research has been severely hindered in fields such as taxonomy, ecology, and genetic resource evaluation. Development of new and more sensitive nuclear DNA markers for biodiversity detection is highly desirable [11] and [12]. The ubiquitin–proteasome system, which plays a key RAS p21 protein activator 1 role in degradation of proteins, is imperative for maintaining the cellular homeostasis in eukaryotic cells [13]. Three enzymes are required

in the ubiquitination and targeting of proteins for degradation: ubiquitin activating enzyme E1, ubiquitin conjugating enzyme E2, and the highly conserved ubiquitin ligase E3. Ubiquitin ligases are key components of the ubiquitin–proteasome system. After a protein has been ubiquitinated, the substrate protein will be located to the proteasome (a cylindrical complex) to be degraded into smaller polypeptides or other molecules with biological activity for reutilization [13]. Ubiquitin plays a vital role not only in protein degradation but also in many cellular functions including DNA repair processes, cell cycle regulation, cell growth, immune system functionality, and hormone-mediated signaling in plants. In recent years, several types of the ubiquitin ligase E3, such as RING finger-containing E3s (RBR and TRIM families), cullin-containing E3 complexes, Ubox E3s and HECT E3s, were reported [14].

The purpose of the statistical analyses was to determine if there

The purpose of the statistical analyses was to determine if there were significant variations on the histological structures observed and on the levels of expression of target genes according to presence of experimental periodontal disease in each period. Comparison of the results in each experimental period according to the control group was performed using unpaired

Student’s t-test. Moreover, we also wanted to determine if the area of bone resorption in the lingual surface varied within the experimental periods. One-way Analysis of Variance test (ANOVA) followed by the CHIR-99021 cost Tukey post hoc test was used to evaluate significant differences among experimental periods. Significance level was set to 5%. All calculations were performed using

GraphPad Prism 5 software (GraphPad, Inc., San Diego, CA, USA). There was a significant increase on the number of inflammatory cells and vascular structures already at 7 days post-ligature placement. The overall changes on the composition of the connective tissue, including a decrease ABT-263 supplier on the number of fibroblasts and on the density of collagen is a common finding in periodontal disease. The severity of inflammation was significantly higher in comparison to the control group throughout the 30-day experimental period; but a decrease in inflammatory cell density is observed after 15 days, as well as a trend of increasing number of fibroblasts and extracellular matrix at 15 and 30 days (Fig. 1 and Fig. 2). Cytokine gene expression in the gingival tissues however corroborate these findings, with a maximum increase of mRNA expression for bone-related cytokines RANKL and OPG and pro-inflammatory

cytokines TNF-α and IL-6 at 7 days, followed by a decrease at 15 and 30 days. These results also agree with the finding that anti-inflammatory cytokine IL-10 tended to increase over the 30 day-experimental period (Fig. 4). Expression of SOCS1 and 3 proteins were significantly increased already at 7 days in the disease-induced group, followed by a significant decrease on remaining experimental periods, although their expression remained higher than in the control group (Fig. 5). These results mirror those of the macroscopic analysis of bone resorption and of the stereometry indicating a strong correlation of the inflammatory status and the expression of SOCS (Fig. 1, Fig. 2 and Fig. 3). It is well documented that SOCS is expressed at low levels in healthy periodontal tissues.11 Our results are in accordance with these findings. Interestingly, activation of STAT1 and STAT3 in both total and phosphorylated forms followed the expression of SOCS1 and SOCS3 proteins, respectively. A significant activation of STAT1 and STAT3 was observed already at 7 days in animals with ligature-induced periodontal disease.