“Objectives Health is a subjective concept that considers


“Objectives. Health is a subjective concept that considers the social, cultural, environmental and behavioural problems of the individual. This study was conducted with the objective of better understanding

PF-6463922 the sociocultural aspects related to the oral health of the Fulani populations of Ferlo, Senegal. Methods. The study was qualitative and based in the area of the Great Green Wall (GGW) in the region known as Ferlo, northern Senegal. Data were collected by semi-structured interviews in a sample of the population and through discussions with a focus group. It concerned health and aesthetics of the teeth, care and traditional herbal recipes, teeth and superstitions. Results. It appears that people were using the toothpick, the chewing stick and/or charcoal to clean their teeth. Confusion persisted with respect to the types of food consumed that were implicated in the occurrence of dental caries: tea, rice, ‘jumbo’ (a seasoning spice) and tobacco. ‘Borombop’, which means ‘master of the head’, was the most commonly reported cause of caries. Healthy, beautiful teeth were attributes of beauty and elegance, enhanced by tattoos and crafted crowns in the Fulani. Their health problems were generally managed by healers or traditional practitioners who based their practices on empirical

and ‘handed down’ knowledge. Socio-anthropological meanings were given to BI2536 children with neonatal teeth. Conclusions. It is therefore important to consider the sociocultural aspects in oral health projects and programmes; the place of herbal medicine in dentistry should be recognized and maybe researched in the region of the Great Green

Wall.”
“At present, molecular markers of colorectal cancer (CRC), including KRAS, NRAS and BRAF mutations, and the microsatellite status are evaluated for the development of personalized treatments. However, clinicopathological and molecular characteristics and the prognostic role of NRAS mutations remain unclear. In the present study, a total of 1,304 consecutive stage 0-IV CRC tumor samples were analyzed for KRAS (exon 2, 3 and 4), NRAS (exon 2 and 3) and BRAF (exon 15) mutations. Multivariate analysis was performed to assess the prognostic impact of NRAS mutations. KRAS,NRAS and BRAF mutations were identified DAPT price in 553 (42.4%), 35 (2.7%), and 59 (4.5%) of 1,304 CRC cases, respectively. Tumors with NRAS mutations were more frequently located in the distal colorectum compared with those with KRAS or BRAF mutations. Multivariate analysis indicated that KRAS and BRAF mutations were found to be associated with poor prognosis [hazard ratio (HR)=1.44, 95% confidence interval (CI), 1.18-1.76 and HR=2.09; 95% CI, 1.33-3.28, respectively], whereas NRAS mutations were associated with a trend toward favorable prognosis (HR=0.53; 95% CI, 0.27-1.03).

S74F, p E121D, p Y254C, p E260K, p T394P and p N495Y;

we

S74F, p.E121D, p.Y254C, p.E260K, p.T394P and p.N495Y;

we also found a small deletion (c.1142delC) and a probable deep intronic mutation that causes the loss of exon 5 (c.423_566del) found in cDNA. Both mutations are described in this study for the first time. We also identified 20 polymorphisms previously reported and 2 novel ones: (c.633 + 222 T/C and c.898 + 25 C>G).\n\nIn conclusion, we have identified the mutations responsible for Mucopolysaccharidosis IV A in Spain. We found great allelic heterogeneity, as occurs in other populations, which hinders the establishment of genotype-phenotype correlations in Spain. This study has been very useful for genetic counseling to the affected families. (C) 2012 Published by Elsevier Inc.”
“Phase transition from body-centered-cubic spheres to cylinders in a diblock copolymer melt under an external electric field is investigated BIIB057 chemical structure by means of real-space dynamical self-consistent field theory. Different phase transition kinetic pathways and different cylindrical domains arrangements of the final phase are observed depending on the strength and direction of the applied electric field. Various transient states have been identified depending on the electric field

being applied along [111], [100], and [110] directions. The electric field should be above a certain threshold value in order the transition to occur. A “dynamic critical exponent” of the transition Selleck Rigosertib is found MK-4827 in vivo to be about 3/2, consistent with other order-order transitions in diblock copolymers under electric field. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4791639]“
“Clinical Research Coordinators (CRCs) are a vital component of the clinical research enterprise providing a pivotal role in human subject protection through the numerous activities and responsibilities assigned to them. In 2006, the National Institutes of Healths National Center for Research resources (NCRR) implemented the Clinical and Translational Science Awards program (CTSA) to advance biomedical research.

As a part of this endeavor, many workgroups were formed among the Consortium to support translational research. The Research Coordinator Taskforce was created as part of the Regulatory Knowledge group of the Clinical Research Innovation Key Function Committee, and focuses on enhancing CTSA capabilities to provide support and training for CRCs. In the spring of 2008, this taskforce conducted two surveys of the then 24 CTSA Consortium members to better understand the current expectations and responsibilities of research coordinators in addition to the mechanism for providing education, training, and support in order for CRCs to successfully meet the study responsibilities placed upon them.

We report use of the Tribolium castaneum (Herbst) (red flour beet

We report use of the Tribolium castaneum (Herbst) (red flour beetle) genome to identify, clone, express, and characterize a novel endo-beta-1,4-glucanase we named TcEG1 (T. castaneum endoglucanase 1). Sequence analysis of a full-length TcEG1 cDNA clone (1356 bp) revealed sequence

homology to enzymes in glycosyl hydrolase family 9 (GHF9), and verified presence of a change (Gly for selleck products Ser) in the conserved catalytic domain for GHF9 cellulases. This TcEG1 cDNA clone was predicted to encode a 49.5 kDa protein with a calculated pl of 5.39. Heterologous expression of TcEG1 in Drosophila S2 cell cultures resulted in secretion of a 51-kDa protein, as determined by Western blotting. The expressed protein was used to characterize TcEG1 enzymatic activity against two cellulose substrates to determine its specificity and stability. Our data support that TcEG1 as a novel endo-beta-1,4-glucanase, the first functional characterization of a cellulase enzyme derived from an insect genome with potential applications in the biofuel industry due to its high relative activity at alkaline pH. (C) 2010 Elsevier Ltd. All rights reserved.”
“Background: The genus Xanthomonas this website comprises several plant pathogenic bacteria affecting a wide range of hosts. Despite the economic, industrial

and biological importance of Xanthomonas, the classification and phylogenetic relationships within the genus are still under

active debate. Some of the relationships between pathovars and species have not been thoroughly clarified, with old pathovars becoming new species. A change in the genus name has been recently suggested for Xanthomonas albilineans, an early branching species currently located in this genus, but a thorough phylogenomic reconstruction would aid in solving these and other discrepancies in this genus.\n\nResults: Here we report the results of the genome-wide check details analysis of DNA sequences from 989 orthologous groups from 17 Xanthomonas spp. genomes available to date, representing all major lineages within the genus. The phylogenetic and computational analyses used in this study have been automated in a Perl package designated Unus, which provides a framework for phylogenomic analyses which can be applied to other datasets at the genomic level. Unus can also be easily incorporated into other phylogenomic pipelines.\n\nConclusions: Our phylogeny agrees with previous phylogenetic topologies on the genus, but revealed that the genomes of Xanthomonas citri and Xanthomonas fuscans belong to the same species, and that of Xanthomonas albilineans is basal to the joint clade of Xanthomonas and Xylella fastidiosa. Genome reduction was identified in the species Xanthomonas vasicola in addition to the previously identified reduction in Xanthomonas albilineans. Lateral gene transfer was also observed in two gene clusters.

Blood samples were taken immediately before infusion and 15, 30,

Blood samples were taken immediately before infusion and 15, 30, 60, 120 and 180 min thereafter Glucose and insulin concentrations were measured in each blood sample, while BHBA and NEFA were measured only in samples taken before the infusion. QUICKY an indicator of insulin resistance in cows was calculated. Basal glycemia did not significantly differ between the breeds. Basal insulinemia was significantly higher in Buga than

in HF cows in both examined periods (p <0.001, respectively). Basal NEFA levels tended (p =0.06) FG 4592 to be higher in Buga cows compared with those of HF ante partum, and was significantly higher (p<0.001) post partum. Basal https://www.selleckchem.com/products/Roscovitine.html BHBA was significantly lower in Buga than HF cows in both examined periods (p<0.01; p<0.001). QUICKI was significantly lower in Buga compared to HF cows both ante partum and post partum periods (p<0.001, respectively). Glycemia determined during

GTT were higher in Buga than HF cows, both ante partum and post partum, but significantly starting from minute 15 ante partum Le. minute 30 post partum. Insulinemia determined during GTT was significantly lower at min 15, and significantly higher starting from min 90 in Buga than HF cows, both ante partum and postpartum. Results obtained in this study indicate on difference in insulin responsevness to acute glucose infusion between the examined breeds, which is probably a consequence of the difference in the degree of negative energy balance rather than of selection on high milk production. Namely, decreased insulin tissues sensitivity and decreased insulin

responsiveness in Buga compared to HF cows is probably the consequence of inadequate energy intake from alimentary sources which leads Selleck FG4592 to enhanced usage of energy from body reserves.”
“ObjectiveProstate cancer patients who receive androgen deprivation therapy (ADT) often experience many physical and psychological side effects. ADT may be associated with increased risk for depression, but the relationship between ADT and depression is not fully understood. This study used a longitudinal design to assess depressive symptomatology in patients receiving ADT compared with two groups of matched controls. MethodsParticipants were men initiating ADT treatment (ADT+ group; n=61) and their matched controls: prostate cancer patients treated with radical prostatectomy (ADT- group; n=61), and no-cancer controls (CA- group; n=61). Depressive symptomatology was assessed using the Center for Epidemiological Studies Depression Scale at ADT initiation and again 6months later. Differences in depressive symptomatology and rates of clinically significant depressive symptomatology were analyzed between groups at each time point and within groups over time.

One mrp operon could confer tolerance of E coli KNabc to 0 8 M N

One mrp operon could confer tolerance of E. coli KNabc to 0.8 M NaCl and 100 mM LiCl, and an alkaline pH. This operon was previously mainly designated mrp (also mnh, RSL3 order pha or sha) due to its multiple resistance and pH-related activity. Here, we will also use mrp to designate the homolog from H. zhaodongensis (Hz_mrp). Sequence analysis and protein alignment showed that Hz_mrp should belong to Group 1 mrp operons. Further phylogenetic analysis reveals

that Hz_Mrp system should represent a novel sub-class of Group 1 Mrp systems. This was confirmed by a significant difference in pH-dependent activity profile or the specificity and affinity for the transported monovalent cations between Hz_Mrp system and all the known Mrp systems. Therefore, we propose that Hz_Mrp should be categorized as a novel Group 1 Mrp system.”
“BACKGROUND: Young age at diagnosis and treatment with cranial radiation therapy are well studied risk factors for cognitive impairment AZD8055 in pediatric brain tumor survivors. Other risk factors are hydrocephalus, surgery complications, and treatment with intrathecal chemotherapy. Female gender vulnerability to cognitive sequelae after

cancer treatment has been evident in some studies, but no earlier studies have related this to tumor size. The purpose of our study was to find factors correlated with lowered IQ in a nationally representative

sample of pediatric brain tumor patients referred for neuropsychologic evaluation. METHODS: Sixty-nine pediatric brain tumor patients, diagnosed 1988-2005 and tested 1995-2006, were included in the study. In a series of ARN-509 stepwise multiple regressions, the relationship of IQ to disease, treatment, and individual variables (sex and syndromes) were evaluated. A subanalysis was made of the covariation between sex and tumor size. RESULTS: The patients had generally suppressed IQ and impairments in executive function, memory, and attention. Lowered IQ was associated with young age at diagnosis, being male, tumor size, and treatment with whole-brain radiation therapy. A sex difference was evident for patients with increased intracranial pressure at diagnosis with males having larger tumors. Tumor size was found to be a better predictor of cognitive sequelae than sex. CONCLUSIONS: Whole-brain radiation therapy, large tumors, young age at diagnosis, and male gender are risk factors for late cognitive sequelae after pediatric brain tumors. When examining sex differences, tumor size at diagnosis needs to be taken into account.”
“We report on the presence and formation of cholesterol oxidation products (oxysterols) in bovine sperm.


“Background In a subset of patients, anti tumour necrosis


“Background In a subset of patients, anti tumour necrosis factor (TNF) therapeutic antibodies are immunogenic, resulting in the formation of antidrug antibodies (ADAs). Neutralising ADAs compete with TNF for its binding site and reduces the effective serum concentration, causing clinical non-response. It is however unknown to which extent ADAs are neutralising. Objectives To study which proportion of antibodies to human(ised) anti-TNF (adalimumab, golimumab, certolizumab) as well as chimeric anti-TNF (infliximab) is neutralising. Methods Neutralising capacity of ADAs was assessed using a TNF competition assay in ADA-positive

sera of patients treated with adalimumab (n=21), golimumab (n=4), certolizumab (n=9) or infliximab (n=34) sent in to our diagnostic department. Results In 34 sera with ADAs to adalimumab, golimumab or certolizumab, SB202190 research buy bigger than 97% of the antibodies were neutralising. In 34 sera with ADAs to infliximab bigger than 90% of the antibodies were neutralising. Further characterisation of the broader antibody response Raf inhibitor to infliximab revealed that non-neutralising antibodies to infliximab do not target murine domains, but may bind infliximab-unique domains not involved in TNF binding (located outside the paratope). Conclusions Our study shows that ADAs to human (ised)

as well as chimeric anti-TNF therapeutic antibodies are largely neutralising. This highly restricted ADA response suggests an immunodominant Omipalisib PI3K/Akt/mTOR inhibitor role for the paratope of anti-TNF therapeutics.”
“Background and aims: Previous clinical trials suggest that adding non-selective beta-blockers improves the efficacy of endoscopic band ligation (EBL) in the prevention of recurrent bleeding, but no study has evaluated whether EBL improves the efficacy of beta-blockers + isosorbide-5-mononitrate. The present study was aimed at evaluating this issue in a multicentre randomised controlled trial (RCT) and to correlate changes in hepatic venous pressure gradient (HVPG) during treatment with clinical outcomes\n\nMethods: 158 patients with cirrhosis,

admitted because of variceal bleeding, were randomised to receive nadolol+isosorbide-5-mononitrate alone (Drug: n = 78) or combined with EBL (Drug+EBL; n = 80). HVPG measurements were performed at randomisation and after 4-6 weeks on medical therapy.\n\nResults: Median follow-up was 15 months. One-year probability of recurrent bleeding was similar in both groups (33% vs 26%: p = 0.3). There were no significant differences in survival or need of rescue shunts. Overall adverse events or those requiring hospital admission were significantly more frequent in the Drug+EBL group. Recurrent bleeding was significantly more frequent in HVPG non-responders than in responders (HVPG reduction >= 20% or <= 12 mm Hg). Among non-responders recurrent bleeding was similar in patients treated with Drugs or Drugs+EBL.

(C) 2010 by the American College of Surgeons)”
“Gravid mice

(C) 2010 by the American College of Surgeons)”
“Gravid mice and other rodents inoculated with Listeria monocytogenes typically fail to clear an intrauterine infection and either succumb or expel their intrauterine contents. We took advantage of this property to investigate the effects of an extrauterine infection ZD1839 in vitro on parameters of pregnancy success. Pregnant mice were selected for our study if they showed no clinical signs of listeriosis following oral inoculation at 7.5 gestational days (gd), and had no detectable intrauterine colony forming units (cfu) at near term (18.5 gd). The range of oral doses employed was 10(6)-10(8) cfu per mouse for two listerial serotype strains (4nonb and 1/2a). At all doses, inoculation

resulted in a decrease in average near-term (18.5 gd) fetal weight per litter compared to sham inoculated controls. Additionally, embryonic death (indicated by intrauterine resorptions) AZD7762 nmr was exhibited by some inoculated

mice but was absent in all sham inoculated animals. In parallel experiments designed to detect possible loss of placental function, gravid uteruses were examined histopathologically and microbiologically 96 h after oral inoculation. Placental lesions were associated with high (> 10(6)), but not low (< 10(2)) or absent intrauterine cfu. In vitro, mouse embryonic trophoblasts were indistinguishable from mouse enterocytes in terms of their sensitivity to listerial exposure. A model consistent with our observations is one in which products (host or bacterial) generated during an acute infection enter embryos transplacentally and influences embryonic survival and slows normal growth in utero.”
“In the last decade, it has become apparent that not only DNA sequence variations but also epigenetic modifications may

contribute to disease, including cancer. These epigenetic modifications involve histone modification including acetylation and methylation. DNA methylation, and chromatin remodeling. mTOR inhibitor One of the best-characterized epigenetic changes is aberrant inethylation of cytosines that occur in so-called CpG islands. DNA hypomethylation, prevalent as a genome-wide event, usually occurs in more advanced stages of tumor development. In contrast, DNA hypermethylation is often observed as a discrete, targeted event within tumor cells, resulting in specific loss of gene expression. Interestingly, it was found that sporadic and inherited cancers may exhibit similar DNA methylation patterns, and many genes that are mutated in familial cancers have also been found to be hypermethylated, mutated, or deleted in sporadic cancers. In this review, we will focus on DNA methylation events as heritable epimutations predisposing to colorectal cancer development. (C) 2010 Elsevier Inc. All rights reserved.”
“There are significant relationships between racial residential segregation (RRS) and a range of health outcomes, including cancer-related outcomes.

Further, bioactive compounds like beta-carotene, which has consid

Further, bioactive compounds like beta-carotene, which has considerable double bond unsaturation and curcumin, which has considerable aromatic unsaturation, were encapsulated in these amphiphilic copolymers which successfully demonstrated their drug loading ability.”
“Objective: guidelines recommend that external cephalic version (ECV) should be offered to all women with a fetus in breech presentation at term. However, only 50-60% MEK162 purchase of the women receive an ECV attempt. We explored the determinants (barriers and facilitators) affecting the uptake of the guidelines among gynaecologists and midwives in the Netherlands. Design: national online

survey. Setting: the Netherlands. Participants: gynaecologists and midwives. Measurements: in the online survey, we identified the determinants that positively or negatively influenced the professionals’ adherence to three key recommendations in the guidelines: (a) counselling, (b) advising for ECV, (c) arranging an ECV. Determinants were identified in a previously performed qualitative study and were Selleck SNX-5422 categorised into five underlying constructs; attitude towards ECV, professional obligation, outcome expectations, self-efficacy and preconditions

for successful ECV. We performed a multivariate analysis to assess the importance of the different constructs for adherence to the guideline. SNX-5422 Findings: 364 professionals responded to the survey. Adherence varied: 84% counselled, 73% advised, and 82% arranged an ECV for (almost) all their clients. Although 90% of respondents considered ECV to be an effective treatment for preventing caesarean childbirths, only 30% agreed that ‘every client should undergo ECV’. Self-efficacy (perceived skills) was the most

important determinant influencing adherence. Key conclusions: self-efficacy appears to be the most significant determinant for counselling, advising and arranging an ECV. Implications for practice: to improve adherence to the guidelines on ECV we must improve self-efficacy. (c) 2014 Published by Elsevier Ltd.”
“The authors assessed the association between serum phospholipid fatty acids as biomarkers of fatty acid intake and breast cancer risk among women in the E3N Study (1989-2002), the French component of the European Prospective Investigation into Cancer and Nutrition. During an average of 7 years of follow-up, 363 cases of incident invasive breast cancer were documented among 19,934 women who, at baseline (1995-1998), had completed a diet history questionnaire and provided serum samples. Controls were randomly matched to cases by age, menopausal status at blood collection, fasting status at blood collection, date, and collection center. Serum phospholipid fatty acid composition was assessed by gas chromatography.


“Objectives: We evaluated the cortical activity of 2 succe


“Objectives: We evaluated the cortical activity of 2 successful prelingually

deafened adult cochlear implant (Cl) users who have been trained by auditory-verbal/oral communication since childhood.\n\nMethods: Changes in regional cerebral blood flow were measured by positron emission tomography using (18)F-fluorodeoxyglucose while the subjects were receiving auditory language stimuli by listening to a story. Ten normal-hearing volunteers were observed as age-matched control subjects.\n\nResults: In both cases, the auditory-related regions, when compared to same regions in the control subjects, showed hypermetabolism in the left dorsolateral prefrontal cortex and the left precentral gyms similar to that in successful Cl users who are prelingually deafened HDAC inhibitor drugs children or

postlingually deafened adults. Both subjects had the ability to activate these areas, and this ability might be one of the reasons that accounts for such exceptionally good performance in older prelingually deaf Cl users. As for the visual-related regions, hypometabolism was observed in Brodmann areas 18 and 19, and this finding might be related to the intensive auditory-verbal/oral education that the subjects CX-6258 chemical structure had received since childhood.\n\nConclusions: Despite the limits imposed by the small sample size and the spatial resolution of positron emission tomography, this study yielded insights into the nature of the brain plasticity in prelingually deafened adults who are successful CI users.”
“Background. Spinal cord injury (SCI) patients have respiratory complications because of abdominal muscle weakness and paralysis, which impair the ability to cough. Objective. This study aims to enhance cough in high-level SCI subjects (n = 11, SCI at or above T6) using surface electrical stimulation of the abdominal muscles via MLN8237 2 pairs of posterolaterally

placed electrodes. Methods. From total lung capacity, subjects performed maximum expiratory pressure (MEP) efforts against a closed airway and voluntary cough efforts. Both efforts were performed with and without superimposed trains of electrical stimulation (50 Hz, 1 second) at a submaximal intensity set to evoke a gastric pressure (P(ga)) of 40 cm H(2)O at functional residual capacity. Results. In the MEP effort, stimulation increased the maximal P(ga) (from 21.4 +/- 7.0 to 59.0 +/- 5.7 cm H(2)O) and esophageal pressure (P(es); 47.2 +/- 11.7 to 65.6 +/- 13.6 cm H(2)O). During the cough efforts, stimulation increased P(ga) (19.5 +/- 6.0 to 57.9 +/- 7.0 cm H(2)O) and P(es) (31.2 +/- 8.7 to 56.6 +/- 10.5 cm H(2)O). The increased expiratory pressures during cough efforts with stimulation increased peak expiratory flow (PEF, by 36% +/- 5%), mean expiratory flow (by 80% +/- 8%), and expired lung volume (by 41% +/- 16%). In every subject, superimposed electrical stimulation improved peak expiratory flow during cough efforts (by 0.99 +/- 0.12 L/s; range, 0.41-1.80 L/s).


“A bistable donor-acceptor [2]catenane, which is composed


“A bistable donor-acceptor [2]catenane, which is composed of a crown ether containing a hydroquinone unit and a 1,5-diaminonaphthalene unit, interlocked mechanically by cyclobis(paraquat-p-phenylene) as its tetrachloride, Selleck CX-6258 exists as a mixture of translational isomers, both in the solid state and in aqueous solution. UV/vis and H-1 NMR spectroscopies demonstrate that this isomeric mixture can be switched in water in the presence of hydrochloric acid to afford a single diprotonated derivative in which only the hydroquinone unit resides inside the cavity of the tetracationic cyclophane. Treatment with 1,4-diazabicyclo[2.2.2]octane resets the molecular switch.”
“In

recent years, carbon-hydrogen bond functionalization has evolved from an organometallic curiosity to a tool used in mainstream applications in the synthesis of complex natural products and drugs. The use of C-H bonds as a transformable functional group is advantageous because these bonds are the most abundant functionality in organic molecules. One-step conversion of these bonds to the desired functionality

shortens synthetic pathways, saving reagents, solvents, and labor. Less chemical waste find more is generated as well, showing that this chemistry is environmentally beneficial. This Account describes the development and use of bidentate, monoanionic auxiliaries for transition-metal-catalyzed C-H bond functionalization reactions. The chemistry was initially developed to overcome the limitations with palladium-catalyzed C-H bond functionalization assisted by monodentate directing groups. By the use of electron-rich bidentate directing groups, functionalization of unactivated sp(3) C-H bonds under palladium catalysis has been developed. Furthermore, a number of abundant base-metal complexes catalyze functionalization of sp(2) C-H bonds. At this point, aminoquinoline, picolinic acid, and related compounds are among the most used and versatile directing moieties in C-H bond functionalization chemistry. These groups facilitate catalytic functionalization of sp(2) and sp(3) C-H bonds

by iron, cobalt, nickel, copper, ruthenium, rhodium, and palladium complexes. Exceptionally general reactivity is observed, enabling, among 4SC-202 purchase other transformations, direct arylation, alkylation, fluorination, sulfenylation, amination, etherification, carbonylation, and alkenylation of carbon-hydrogen bonds. The versatility of these auxilaries can be attributed to the following factors. First, they are capable of stabilizing high oxidation states of transition metals, thereby facilitating the C-H bond functionalization step. Second, the directing groups can be removed, enabling their use in synthesis and functionalization of natural products and medicinally relevant substances. While the development of these directing groups presents a significant advance, several limitations of this methodology are apparent.