For example, in a murine model of osteogenesis imperfecta, small

For example, in a murine model of osteogenesis imperfecta, small crystals with a greater variability in alignment were observed in cortical long bone, which may contribute to the brittleness

in this condition. Moreover, the spatial pattern of mineral particle alignment, which is found AC220 to be highest in the femoral cortical midshaft and decreases toward the metaphyses and systematically increases with age in wild-type mice, is lost in TNALP-deficient mice, which is a model for hypophosphatasia; these changes could be due to a disruption of a highly ordered metaphyseal bone matrix due to ongoing remodelling in the cortical midshaft [4]. Scanning SAXS has also been used to analyse the nanostructure of human osteoporotic bone treated with sodium fluoride, and the mineral density, particle size and orientation of the resulting fluorotic bone were all found to exhibit differences compared to healthy bone [23]. However, the temporal and

spatial variation of the mineralised nanostructure in bones such as the scapula, which are formed by intramembranous ossification, and where complex muscle-mediated forces act on the bone [5], along with disruption of these mineralisation mechanisms in metabolic bone diseases, has not been previously investigated. A better understanding of these mineralisation dynamics is clinically and www.selleckchem.com/products/Lapatinib-Ditosylate.html biomechanically relevant because altered muscular forces

have been shown to increase fragility [24]; moreover, skeletal deformability has been shown to increase in bone disorders mediated by weaker muscle forces, such as muscular dystrophy Galeterone [25] and hypophosphatemic rickets [26]. Scanning SAXS has provided a unique perspective on understanding these mineralisation dynamics. The degree and direction of mineral particle predominant orientation observed here (Fig. 3(C–D)) give a measure of the organisation within the mineralised bone matrix at the nanoscale. Mineral crystallites closest to the regions of greater and unidirectionally oriented muscle forces, such as the LB, are more aligned to the LB in both wild type and Hpr mice, compared to crystallites in the flat IF region, which are subjected to lower and more multiaxial force. We further propose that in wild-type intramembranously ossifying bone, rapid alignment in the mineral phase occurs early in murine development, associated with the rapid growth of skeletal muscles and their elevated movements during the early postnatal period (1–4 weeks) [27]. Such an alignment would account for the observed large reduction in angle between mineral particle predominant orientation and a reference line at the LB in wild type mice between 1 and 4 weeks of age, as well as the subsequent stabilisation from 4 weeks to 10 weeks.

The authors wish to express their large gratitude to Martina, Sch

The authors wish to express their large gratitude to Martina, Schatz, Emanuel Jauk, Marcel Berthold, Bettina Brunner and Heike Hinterhofer for their help in this study. “
“The importance of pathogens as a selective pressure for the human genome (Fumagalli et al., 2011) is thought to have shaped the evolution of two distinct aspects of the immune system (Fincher and Thornhill, 2012 and Schaller, 2006): the classical immune system (i.e., physiological mechanisms of defense against parasites) and the behavioral

immune system (i.e., psychology and behaviors for avoiding and managing infectious disease). Given the face’s importance for social interaction, responses IDH tumor to facial cues may be an important aspect of the behavioral immune system. Indeed, people who are particularly concerned about infectious disease tend to show Sirolimus in vivo stronger aversions to facial cues thought to be associated with poor health (e.g., reduced sex-typical shape characteristics, Thornhill & Gangestad, 2006), particularly when assessing the attractiveness of potential mates (reviewed in Jones et al., 2013). These studies typically assessed individual differences in concerns about pathogens using

the pathogen disgust subscale of the Three Domains of Disgust Scale (TDDS, Tybur, Lieberman, & Griskevicius, 2009). Experimentally priming concerns about pathogens strengthens preferences for putative cues of good health in potential mates (Little, DeBruine, & Jones, 2011), complementing correlational findings. Other research into the behavioral immune system has focused on the stigmatization of obese individuals. For example, obese individuals elicit pathogen disgust in post-industrialized societies (Lieberman, Tybur, & Latner, 2011). Additionally, PtdIns(3,4)P2 concerns about infectious disease

are positively correlated with the strength of negative attitudes about obese individuals (Park, Schaller, & Crandall, 2007), particularly among women (Lieberman et al., 2011). People can judge others’ weight from facial cues and tend to prefer faces displaying cues of relatively low weight (Coetzee, Perrett, & Stephen, 2009). Moreover, rated facial adiposity (the perception of heavier weight in the face) is correlated with measures of poor health, such as shorter lifespan (Reither, Hauser, & Swallen, 2009). Although facial attractiveness is correlated with immune system response in men (Rantala et al., 2012), but not women (Rantala et al., 2013a), rated facial adiposity is correlated with greater frequency of past illness in samples combining men and women (Coetzee et al., 2009) or including women only (Tinlin et al., 2013). Rated facial adiposity is also correlated with inefficient immune system response in men (Rantala et al., 2013b). Together, these findings raise the possibility that individual differences in pathogen disgust predict attractiveness judgments of faces differing in cues of weight.

3) On the

other hand, cyclin D1 expression was <25% in G

3). On the

other hand, cyclin D1 expression was <25% in Groups 1, 2, and 3, but >50% in Group 4 (70.6% of the samples). Group 2 showed no cases with >75% of the cells expressing cyclin D1. A significant negative correlation was observed between ROC1 and cyclin D1 expression levels regardless of neoplasia type (benign or malignant) (p = 0.0008985). Comparisons between ROC1 and cyclin D1 expression in melanomas and melanocytic nevi are shown in Table 1 and Table 2, respectively. In some cases of melanoma, areas with >75% of the cells expressing ROC1 and <25% of cells expressing cyclin D1 were observed adjacent to areas wherein ROC1 was positive in <25% of the cells, and cyclin D1 was expressed in >75% of the cells. This was found to be independent of increased gene expression (Fig. 4). The ROC1/cyclin D1 relationship did not vary with age, gender, or lesion site in either melanomas or melanocytic nevi (p > 0.05).

Increased Raf inhibitor ROC1 protein expression, as compared with cyclin D1 expression, Omipalisib predominated in all samples (65% of cases; n = 78). In the melanocytic nevus group, the ROC1 expression increase was remarkably predominant in relation to cyclin D1 expression (86.2% of the cases). In melanomas, this ROC1 expression predominance was also observed, but in only 45.2% of the cases (p < 0.001) ( Table 3). Although ROC1 and cyclin D1 expression levels were predominantly proportional in melanomas with thickness >2 mm, and although a great number of cases with melanomas >4 mm (35.3%) showed increased cyclin D1 expression in comparison with ROC1 levels, no statistically significant difference was seen among the groups (p = 0.166). Only in the acral lentiginous melanoma group was cyclin D1 expression greater than that of ROC1 in a large number of cases (40%). On the other hand, this group also showed the largest number of cases with increased ROC1 expression as compared selleck chemicals llc to cyclin

D1 expression (50%). No statistically significant difference in the ROC1/cyclin D1 relationship was observed in relation to melanoma histological type (p = 0.605). Six cases (five melanomas and one melanocytic nevus) exhibited CCND1 gene amplification. In two amplified cases, one was acral lentiginous melanoma and the other was nodular melanoma with Breslow thickness of >4 mm. Cyclin D1 was expressed in 51–75% of the acral lentiginous melanoma cells and in >75% of the nodular melanoma cells. In both the acral lentiginous and nodular melanomas, ROC1 expression was present in <25% of the cells. In the other amplified melanomas (2 SSM and 1 LMM), in one case, the Breslow's thickness was <1 mm, in another it was 1.01–2 mm, and in the other it was 2.01–4 mm. Of these three amplified melanomas, two showed cyclin D1 and ROC1 expression in 51–75% of the cells, while in the other case, cyclin D1 positivity was <25%, and ROC1 was expressed in >75% of the cells.

Second, group × congruency ANOVA’s were examined to isolate congr

Second, group × congruency ANOVA’s were examined to isolate congruency effects. If significant congruency effects were identified, stimulus and response conflict effects in the difference waves were analyzed (RC − CON, SC − CON, RC − SC). In order to determine time points and electrodes for analyses the following information was considered. A point-by-point ANOVA (electrodes × time points) was run to isolate and identify significant selleckchem time points and electrode locations (Szucs and Soltész, 2007; Szucs and Soltész, 2010a and Szucs and Soltész, 2010b). Effects were considered significant if p < .01 over 20 consecutive time points. Additionally previous literature

was consulted to further refine electrode locations and time points of interest. Based on the point-by-point ANOVA the peak latencies selleck and amplitudes of the major ERP components were measured in the time intervals displayed in Table 1. Electrode locations are shown in Fig. 1(A). The P3a was identified as the most positive peaks in frontal electrodes during the specified time periods for each age group (frontal electrodes 21, 22, 17, 15, 14, 9) based on previous frontal electrode examinations (Fallgatter et al., 1999 and Fjell and Walhovd, 2003). The P3b was identified as the maximum amplitude

at centro-parietal electrodes (54, 61, 67, 55, 62, 72, 79, 78, 77) during the specified time period and in accordance with previous studies (Dien Sodium butyrate et al., 2004, Szucs and Soltész, 2010a and Szucs and Soltész, 2010b). P3a and P3b peak amplitudes and latencies were entered into a congruency (3) × group (3) ANOVA. The duration of the P3a and P3b ERP waves was determined in each individual. First, the peak amplitude and peak latency of the P3a/P3b waves were identified individually. Second, we determined

the latencies of the sampling points preceding (onset latency) and following (offset latency) peak amplitude latency where the amplitude level crossed 60% of the peak amplitude level. Duration was defined as the time difference between the onset and offset latencies. We also examined the P1 occipital ERP component to dissociate P3a activity from P1 perceptual encoding. The P1 occipital component was examined between 80 and 150 msec (electrodes for P1 left 65, 66, 68, 69, 70; electrodes for P1 right 84, 90, 83, 89, 94) in accordance with previous findings (Folstein & Van Petten, 2008; Luck, 2005). The mean amplitude of the raw N450 was firstly examined between 300 and 550 msec at a pooling of 16 central electrodes that showed the maximum amplitude in the topography of the N450 effect across the three groups of participants (cento-parietal electrodes 129, 55, 54, 42, 53, 52, 51, 59, 60, 61, 79, 62, 67, 66, 72, 85) (Jongen and Jonkman, 2008, Szucs and Soltesz, 2012 and West and Schwarb, 2006).

These results indicate that the drug interacts with the mitochond

These results indicate that the drug interacts with the mitochondrial membrane and that the interaction is more likely to occur in its external portion. Mitochondria perform a variety of biochemical processes, but their main function is to produce the majority (>90%) of cellular ATP via oxidative phosphorylation, which is dependent upon a proton electrochemical gradient generated by respiration and maintained by the impermeability of the inner mitochondrial membrane to protons (Kehrer and Lund, 1994;

Pessayre et al., 1999). However, if the mitochondrial membrane is rendered permeable to protons, the membrane potential dissipates, increasing the respiratory rate. Under this condition (uncoupling), the organelle is no longer capable of sustaining ATP buy NVP-BKM120 synthesis (Mitchell, 1961; Nicholls, 1982). Juliprosopine induced an increase in the state-4 respiration,

both in mitochondria energized with malate and pyruvate or with succinate. This effect was accompanied by the dissipation of the membrane potential with a concomitant reduction in ATP synthesis by KU-60019 price the organelle. Furthermore, the compound also caused a stimulation of oxygen uptake in the mitochondria in the presence of oligomycin. Taken together, these results indicate that juliprosopine acts as an uncoupler of oxidative phosphorylation, transforming the mitochondria from an essential powerhouse of the cell enough into a molecular furnace, efficiently wasting the metabolic energy of substrates (Wallace and Starkov, 2000). This change results in a reduction in ATP synthesis, an important event that may cause cell death (Nicotera et al., 1998; Wallace and Starkov, 2000; Szewczyk and Wojtczak, 2002). The interference caused by juliprosopine in the mitochondrial bioenergetic process may be responsible for the results obtained by Silva et al. (2007), who studied the effects of the total alkaloid extract and alkaloid fractions of the plant P. juliflora in a primary

astrocyte culture. They observed that exposure to those compounds caused numerous cytotoxic effects, such as a decrease in MTT reduction, release of the enzyme lactate dehydrogenase (LDH) and morphological changes related to cell death. One class of uncouplers is the protonophorics, such as 2,4-dinitrophenol and CCCP (m-chlorophenylhydrazone), which are weak acids that increase the proton conductance of the inner mitochondrial membrane (Mitchell and Moyle, 1967; Terada, 1990; Skulachev, 1998; Wallace and Starkov, 2000). These compounds can trigger the process of mitochondrial swelling in hyposmotic potassium acetate medium (Nicholls, 1982). Even at the highest concentration tested in this study (25 μM), juliprosopine did not have the capacity to induce swelling, thereby rejecting the hypothesis that it has protonophoric activity.

05) in both cities, which indicated that climatic conditions diff

05) in both cities, which indicated that climatic conditions differed between the months with or without floods. During the flooded months, the morbidity of dysentery was higher than the non-flooded months, followed by more precipitation, higher temperature, higher relative humidity and more sunshine duration. Fig. 2 shows that the morbidity of dysentery declined from 2004 to 2009, and more cases occurred in spring and summer in these cities. Table 4 shows the results of Spearman’s correlation test conducted to determine

the lagged effects between the morbidity of dysentery and explanatory selleck chemical variables during the study period in each city. The results indicated that the floods were positively correlated to the monthly morbidity of dysentery with no month lagged among the three cities. The lagged values of climatic variables in these cities were the same except for the monthly average temperature

in Kaifeng according to the coefficients in Table 4. The parameters of the models and RRs of floods on the risk of dysentery are presented in Table 5. Results showed that floods were significantly associated with the morbidity of dysentery in each of the three cities (Coefficients: 2.44 in Kaifeng; 0.30 in Xinxiang; and 1.01 in Zhengzhou). However, flood duration was negatively correlated with the morbidity of dysentery (Coefficients: −0.63 in Kaifeng; −0.50 in Xinxiang Selleck LDK378 and −0.36 in Zhengzhou). During the flooded months, floods were significantly associated with an increased risk of dysentery with adjustment for meteorological factors in Kaifeng (RR = 11.47, 95% CI: 8.67–15.33). The RRs of dysentery for floods in Xinxiang and Zhengzhou were 1.35 (95% CI: 1.23–3.90) and 2.75 (1.36, 4.85), respectively. In addition, the overall effects of Cell press floods on dysentery in the entire region were estimated through the overall function. As shown in Table 6, an increased risk of dysentery in this region was found, which indicated that floods could increase the

morbidity of dysentery in flooded months (RR = 1.66, 95% CI: 1.52–1.82). This overall model also indicated the extent of dysentery epidemics in the cities. Compared with Kaifeng city, the intensity of dysentery epidemic in Zhengzhou was the greatest with the highest morbidity in terms of the coefficients of the model (Coefficient: 1.13, 95% CI: 1.11–1.16), followed by Xinxiang with lower intensity and morbidity (Coefficient: 0.19, 95% CI: 0.15–0.22). Our study is the first time to demonstrate the quantitative risk of the relationship between the morbidity of dysentery and floods on the basis of a longitudinal data from 2004 to 2009. The results indicated that floods play an important role in the dysentery epidemics during the flood-month.

Subsequent endoscopic indices of increasing complexity incorporat

Subsequent endoscopic indices of increasing complexity incorporated the presence of ulcers, mucopus, granularity, and appearance of light this website scattering, in addition to bleeding and friability. Such modifications

were intended to improve the capture of disease activity, but they invariably increased the subjectivity of the scoring system. Table 1 summarizes commonly used endoscopic indices for UC, none of which have been validated with the exception of the UCEIS.31 Nonetheless, there is no agreed threshold for defining either mucosal healing or endoscopic remission, which makes it almost impossible to compare mucosal healing rates between studies.33 Space does not allow a review of all indices, so this article focuses on the Mayo Clinic endoscopy

subscore, because this is commonly used in clinical trials, and the UCEIS, which has been validated. The Mayo Clinic endoscopy subscore has 4 components, with a maximum total score of 3 (Table 2).26 There is overlap in the features of the different levels of this endoscopic index, which causes high interobserver variation. The most troublesome component of this index is friability, as this is subjective and leads to inconsistent results.34 This inconsistency has lead to an adaptation of the index to remove friability from level 1.35 The value of this index lies p38 MAPK assay with its widespread use in clinical trials. In trials of infliximab and adalimumab, mucosal healing was defined as a Mayo subscore of 0 or 1 or a decrease from the baseline subscores of 2 or 3. In Active Ulcerative Colitis Trials, patients with a posttreatment Mayo score of grade 1 were no more likely to undergo a colectomy than those with a score of 0.36 The UCEIS (Table 3)

was developed because of wide interobserver variation in endoscopic assessment of disease activity.31 There was only 76% agreement for severe and 27% agreement for normal endoscopic mucosal appearances between 10 experienced investigators and a central reader. Thirty different investigators then rated 25/60 different videos for 10 descriptors and assessed overall severity on a 0 to 100 visual analog scale. Kappa statistics tested interobserver and intraobserver variability for each descriptor. Different models to predict the overall assessment of severity as judged by a visual analog http://www.selleck.co.jp/products/Pomalidomide(CC-4047).html scale were developed using general linear mixed regression. The final model incorporated just 3 descriptors, each with precise definitions. A third validation phase used another 25 different investigators from North America and Europe, who assessed in a randomly selected subset of 28/60 videos, including 2 duplicated videos to assess test-retest reliability. Intraobserver kappa values were 0.82, 0.72, and 0.78 for vascular pattern, bleeding, and erosion and ulcer descriptors, and interobserver kappa values were 0.83, 0.56, and 0.77, respectively.

Inorganic nitrogen levels were mostly low in both study areas, of

Inorganic nitrogen levels were mostly low in both study areas, often below the sensitivity of field monitoring instruments (ammonium <19 μg/L and nitrite <0.6 μg/L), with the exception of nitrates,

which at the time of the experiment were <0.6 μg/L in Circeo Linsitinib and 150.5 ± 3.5 μg/L on average in the Gulf of Gaeta. Average total nitrogen concentrations were 166.0 ± 2.1 μg/L in Circeo and 291 ± 7 μg/L in the Gulf of Gaeta (all chemical data from ARPA) and the average temperature was ca. 15 °C in the two areas. The sea bed in the two areas was characterized by variable proportions of mud, sand and rock. In each study area, several sampling sites were chosen at two bathymetries (5 m and 12 m) on inshore-offshore transects: 6 sampling sites on 3 transects

in Circeo and 16 sampling sites on 8 transects in the Gulf of Gaeta. Transect positioning in the Gulf was based on remote-sensing hydrological surveys to identify areas with a high probability of being affected by inputs from urban, agricultural and livestock-rearing outflows due to superficial run-off and river drainage (see Fig. 1 and Supplemental Material for Method details). This allowed us to identify the main outflow Etoposide clinical trial routes and, subsequently, four subareas in the Gulf, hereafter called (from north-west to south-east) Vendicio, Formia, Scauri and Garigliano (Fig. 1). Fronds of U. lactuca, widely present in less wave-exposed intertidal coastal areas of both locations, and C.amentacea var. stricta, occurring in the supralittoral fringe of the reference location, were both collected from the reference location on 18 March 2012 and randomly deployed in replicates

at all sampling sites on 19 March. A small fragment from each frond of each species was cut and conserved (at −80 °C) before deployment and was subsequently used to determine the natural intraspecific variability of the initial δ15N value (T0) and to allow the final value of each sample to be compared to its corresponding initial value. The remaining fragments were singly housed in rigid plastic cages (1 cm mesh), which were tagged and suspended in the water column at ∼70% light (Secchi Amrubicin disk depth = 2–6 m) about 50–90 cm below the water surface, using a combination of buoys, ropes and weights. In each sampling site three replicate plastic cages with U. lactuca and three with C. amentacea were submerged. Since the U. lactuca and C. amentacea cages deployed at the two sampling sites closest to the fish farm were removed twice by persons unknown, comparison in the northern Vendicio area relied only on samples from the other two sampling sites, which were located more than 1.2 km away from the farm. After 48 h of submersion (T1), time enough for complete turnover of N in U. lactuca according to literature ( Runcie et al., 2003) and for δ15N equilibrium according to our preliminary tests (see Supplemental Material), samples were collected and transported to the laboratory in an ice-box.

Note the maximum mesh element size was very coarse, but this only

Note the maximum mesh element size was very coarse, but this only occurred in very deep, flat areas away from the slide region: all shallow regions or regions where depth varies rapidly had much finer resolution due to the choice of metric. Note also that the horizontal resolution around the coastlines was much less

than that of the bathymetry data (1 km or 500 m mesh resolution vs. 1.8 km bathymetry resolution) and hence all bathymetric features were well resolved in these regions. The palaeobathymetric domain was generated by first adding the isostatic selleck products adjustment data from Bradley et al. (2011) to the GEBCO bathymetry dataset to generate a palaeobathymetry. Note that the isostatic data only has extent of −20° to 20° west to east and 40° to 70° south to north, and hence we extrapolated the data by setting the extended domain corners to the same values as the corners of the true domain and then using GMT to interpolate the missing data. We extrapolated

data to match our domain (−43° to 24° west to east and 22° to 80° south to north). Results from this simulation are therefore only valid within 20° west to 20° east and 43° north to 70° north. Note that all wave gauges are situated within this region except gauge 1 (Greenland). All comparisons to the multiscale mesh were carried out within this sub-domain. Once the palaeobathymetry was generated, learn more the 0 m contour was used to generate a coastline as GSHHS was no longer valid. Inland seas and lakes were removed. Mesh resolution, including refinement in the vicinity of the slide and around bathymetric features, was identical to the modern multiscale simulation, except all coastlines were generated using 1 km element lengths.

As before any small islands and features were removed if they could not be resolved. The resulting coastline and bathymetry are shown in Fig. 1 which also shows the comparison to the high resolution GSHHS data. There are clear differences in coastline configuration around the eastern coast of the UK, but no significant differences around the central and southern Norwegian coasts. The mesh contains just over 1 million elements, around 300,000 fewer than the modern mesh, which is largely due to the difference in coastline resolution and the reduced ocean area (Table 3). For each simulation we compare the basin-wide Thiamet G free-surface (i.e. sea surface) height and the free-surface variation at the 34 virtual wave gauges. We compare against a subset of these locations for each simulation. Fig. 6 shows the large-scale free-surface patterns and the qualitative convergence between 25 and 12.5 km mesh resolution. There are no discernible differences in free surface at 60 min simulated time for resolution of 25 km and below. Minor differences between the 25 km and 12.5 km simulation output at 120 min can be seen, but there is no visible difference between 12.5 km and 6.

Estimates based on HELCOM [25] show that only about 3050 t of the

Estimates based on HELCOM [25] show that only about 3050 t of the N reductions would directly affect and improve German Baltic water quality. According to the calculations, a BSAP implementation would not meet the suggested new water quality objective for German Baltic waters and would not ensure a good status according to the WFD. The BSAP target objectives for the

open sea are largely similar to ours, but different to the BSAP our results indicate that the suggested load reductions are not sufficient. This apparent contradiction is a result of different spatial units. While Roxadustat molecular weight the BSAP focusses on the open sea only, we use a spatially integrated approach including all coastal waters. The suggested N load reductions in the BSAP might be sufficient for reaching the targets in the open sea, but they are not at all sufficient to reach the targets in German inner and outer coastal waters. However, it has to be admitted that serious uncertainties exist about the exact amount of atmospheric deposition and its spatial and temporal distribution. Additionally, the spatial aggregated approach and the neglect

of the effect of TP load reduction limit the reliability of the results. The spatially resolved model approach is a refinement and complement Alpelisib nmr of the Baltic Nest box model approach, used for MAI calculations within the BSAP. It allows the harmonization of water quality objective between WFD and BSAP, considers the dependencies between nutrient concentrations and biological indicators, like chl.a, and reflects the gradients from inner coastal waters and lagoons towards the open sea. The definition of the years around 1880 as reference conditions, with a high ecological status, and the deviation of

target concentration by adding 50% turned out to be scientifically reasonable and pragmatic. Pregnenolone Compared to current targets, the suggested values are in general slightly stricter for the open sea and less strict in inner coastal waters. Despite that a good ecological status in inner coastal water is still very hard to reach. The newly suggested water quality targets show that lagoons, bays and estuaries are individuals, determined by the hydrodynamic and morphometric conditions as well as the distance to nutrient sources (Fig. 12). They form single water bodies within one WFD water body type and require very different target values. Even within one water body strong gradients are observed. Therefore, the spatial differentiation of reference and targets value is necessary and a major step towards a successful WFD implementation. WFD CIS asks to take into account the interannual variability of reference conditions and to express it in form of ranges. Our results show that spatial variability is of similar importance, but usually neglected. Because of spatial (and temporal) variability and resulting wide ranges, reference and target values aggregated on water body type level have only a very limited meaning and suitability for practical management.