None of the analysed tumours presented a basal-like phenotype A

None of the analysed tumours presented a basal-like phenotype. A similar distribution of molecular subtypes was identified in the underlying in situ breast carcinomas (HER2 subtype, 82%; luminal A, 6%; luminal B, 6%; basal-like, 6% of cases) and in the invasive component (HER2 subtype, 84%; luminal A, 8%; luminal B, 8%; basal-like, 0% of cases).\n\nConclusions:\n\nHER2 molecular subtype

is the dominant, but not the sole subtype seen in Paget’s cells of the nipple. A similar distribution of molecular subtypes in both Paget’s cells and in the underlying carcinomas strongly suggests their common origin.”
“In the present work, we reported a combined experimental and theoretical study on molecular structure, vibrational GSK-3 inhibitor spectra and HOMO-LUMO analysis of 2-aminobenzimidazole (2-ABD). The FTIR (400-4000 cm(-1)) and FT-Raman spectra (50-3500 cm(-1)) of 2-ABD were recorded.

The www.selleckchem.com/products/PD-173074.html molecular geometry, harmonic vibrational wavenumbers and bonding features of 2-ABD in the ground-state have been calculated by using the density functional B3LYP method with 6-311++G(d,p) and 6-31G(d) as basis sets. The energy and oscillator strength were calculated by time-dependent density functional theory (TD-DFT) result complements with the experimental findings. The calculated HOMO and LUMO energies showed that charge transfer occurs within the molecule. Finally, the calculation results were applied to simulate infrared and Raman spectra of the title compound which showed good agreement with the observed spectra. (C) 2011 Elsevier B.V. All rights reserved.”
“Patients

that receive coronary VS-4718 ic50 bare-metal or drug-eluting stents have to be maintained on dual antiplatelet therapy (DAPT) for at least 4 weeks or 12 months, respectively. The prolonged time period required for drug-eluting stents is the result of delayed vascular healing that is associated with the drug and the polymeric coating. Premature cessation of DAPT may precipitate life-threatening stent thrombosis. However, some urgent, unplanned surgical procedures cannot be carried out under DAPT as a result of an unacceptable bleeding risk. Therefore, in these particular patients, DAPT therapy needs to be bridged for urgent surgery to avoid stent thrombosis, yet no clinical recommendation about a specific pharmacologic protocol is currently available for this specific purpose. We report about the initial experience with a novel institutional bridging protocol using bivalirudin that has been developed and applied successfully in a limited number of patients.”
“Hepatocellular carcinoma (HCC) is characterized by increased oxidative stress and the production of 8-hydroxy-2′-deoxyguanosine (8-OHdG), which is one of the main mutagenic modifications of DNA by oxidative stress. We analyzed the association of 8-OHdG with post-operative survival and revealed that low levels of 8-OHdG are associated with significantly shorter survival time.

Methods and results: Moderate-intensity ExT was administrated

Methods and results: Moderate-intensity ExT was administrated

to young normotensive Wistar-Kyoto (WKY) and find more SHR rats for 16 weeks. SHR rats had a significant increase in mean arterial pressure and cardiac hypertrophy. SHR rats also had higher levels of glutamate, norepinephrine (NE), phosphorylated IKK beta, NF-kappa B p65 activity, NAD(P) H oxidase subunit gp91(phox), PICs and the monocyte chemokine protein-1 (MCP-1), and lower levels of gamma-aminobutyric acid (GABA) and interleukin-10 (IL-10) in the PVN. These SHR rats also exhibited higher renal sympathetic nerve activity (RSNA), and higher plasma levels of PICs, and lower plasma IL-10. However, ExT ameliorates all these changes in SHR rats. Conclusion: These findings suggest that there are the imbalances between excitatory and inhibitory neurotransmitters and between pro-and anti-inflammatory cytokines in the

PVN of SHR rats, which at least partly contributing to sympathoexcitation, hypertension and cardiac Z-IETD-FMK mw hypertrophy; chronic exercise training attenuates hypertension and cardiac hypertrophy by restoring the balances between excitatory and inhibitory neurotransmitters and between pro-and anti-inflammatory cytokines in the PVN; NF-kappa B and oxidative stress in the PVN may be involved in these exercise-induced effects.”
“Objectives: Peripheral blood mononuclear cells (PBMC) are an attractive source for the generation of osteoclasts in vitro, which is an important prerequisite for the examination of resorption and remodeling of biomaterials. In this study, different preparation methods are used to obtain cell populations JNK-IN-8 with a rising content of CD14(+) monocytes. We wanted to address the question whether there is a correlation between content of CD14(+) cells in the preparation and functionality of formed osteoclasts. Materials and Methods: PBMC obtained by density gradient centrifugation with and without further purification by plastic adherence or immunomagnetic separation of CD14(+) cells were seeded on both cell culture

polystyrene and a calcium phosphate bone cement (CPC) and cultivated under stimulation with macrophage colony-stimulating factor (M-CSF) and receptor activator of nuclear factor-kappa B ligand (RANKL). Cell cultures were characterized by histological and fluorescent staining of multinucleated cells that were positive for tartrate-resistant acid phosphatase (TRAP) activity and the presence of actin rings, respectively. Furthermore, activities of osteoclast marker enzymes TRAP and carbonic anhydrase II (CA II) were quantified. For osteoclasts cultured on CPC, resorption pits were visualized using scanning electron microscopy (SEM). Results: Monocytes of all preparations were successfully differentiated into multinucleated osteoclasts showing TRAP and CA II activity on both cell culture plastic and CPC.

Some members of this family have largely resisted structural char

Some members of this family have largely resisted structural characterization as a result of challenges associated with their inherent flexibility. Small-angle scattering (SAS) is often the method of choice for Cyclosporin A mw their structural study. An extensive set of simulated data for both flexible and rigid multidomain systems was analyzed and modeled using standard protocols. This study clearly shows that SAXS profiles obtained from highly flexible proteins can be wrongly interpreted as arising from a rigid structure. In this context, it would be important to identify features from the SAXS data or from the derived structural models that

indicate interdomain motions to differentiate between these two scenarios. Features of SAXS data that identify

flexible proteins are: (1) general attenuation of fine structure in the scattering profiles, which becomes more dramatic in Kratky representations, and (2) a reduced number of interdomain correlation peaks in p(r) functions that also present large D (max) values and a smooth decrease to 0. When modeling this dynamically averaged SAXS data, the structures obtained present characteristic trends: (1) ab initio models display a decrease in resolution, and (2) rigid-body models present highly extended conformations Protein Tyrosine Kinase inhibitor with a lack of interdomain contacts. The ensemble optimization method represents an excellent strategy to identify interdomain motions unambiguously. This study provides information that should help researchers to select the best modeling strategy for the structural interpretation of SAS experiments of multidomain proteins.”
“In this report a textile azo dye Remazol orange was degraded and detoxified by bacterium Pseudomonas aeruginosa BCH

in plain distilled water. This bacterial Selleckchem Birinapant decolorization performance was found to be pH and temperature dependent with maximum decolorization observed at pH 8 and temperature 30 A degrees C. Bacterium tolerated higher dye concentrations up to 400 mg l(-1). Effect of initial cell mass showed that higher cell mass concentration can accelerate decolorization process with maximum of 92 % decolorization observed at 2.5 g l(-1) cell mass within 6.5 h. Effect of various metal ions showed Mn has inducing effect whereas Zn strongly inhibited the decolorization process at 5 mM concentration. Analysis of biodegradation products carried out with UV-vis spectroscopy, HPTLC and FTIR confirmed the decolorization and degradation of Remazol orange. Possible route for the degradation of dye was proposed based on GC-MS analysis. During toxicological scrutiny in Allium cepa root cells, induction in the activities of superoxide dismutase (SOD), guaiacol peroxidase (GPX) and inhibition of catalase (CAT) along with raised levels of lipid peroxidation and protein oxidation in dye treated samples were detected which conclusively indicated the generation of oxidative stress.

(C) 2009 Elsevier B V All rights reserved”
“Executive funct

(C) 2009 Elsevier B V. All rights reserved”
“Executive functions encompass planning, problem-solving and self-monitoring abilities, abilities that are implicit in goal attainment and often compromised

in individuals with traumatic brain injury (TBI). Goal Management Training (GMT) is a theoretically based rehabilitation protocol that was developed to improve goal-directed behaviour. To date, there is evidence to support the efficacy of GMT in healthy older adults and in one previously high functioning individual with acquired brain injury. However, there is no evidence that, in individuals selleck chemicals with TBI and severe cognitive impairments, GMT leads to sustained improvement on everyday tasks requiring planning and organisation. The current study was conducted to explore the efficacy of GMT in helping

individuals with TBI to improve aspects of their day-to-day financial management. Four participants with severe TBI completed a modified GMT module. Outcomes were assessed using Goal Attainment Scaling. Five control participants were also recruited as a comparison group for the Multiple Errands Task which was used to measure generalisation. The outcomes in each case were variable. Overall the results showed that the structured GMT intervention assisted some TBI individuals to improve their performance on financial Rigosertib purchase management tasks, with evidence of generalisation in some cases.”
“1. Inverted click-beetles (Elateridae) jump to right themselves, providing enough energy to launch the body many body CP-868596 lengths into the air.\n\n2. We tested whether

the apparently redundant jump energy could be an adaptation for jumping from compliant surfaces that absorb energy, in the natural habitat. Jump height was measured in beetles jumping from natural substrates and from an apparatus we designed, allowing them to adjust the level of jump energy attenuated by the substrate.\n\n3. Jump height was dramatically reduced (by c. 75%) when jumping from leaves that covered approximately half of the study site. In the remaining area, jumping for righting was either not required or not substantially attenuated. Therefore, the available power for jumping results in low jumps that are barely sufficient for righting when jumping from compliant surfaces covering c. 50% of the natural habitat.\n\n4. The decrease in jump height was correlated with the amount of work absorbed by the substrate. We therefore conclude that the beetles do not adjust the muscle work invested in jumping to adjust for changes in substrate stiffness.\n\n5. Scaling considerations of the jumping mechanics suggest that substrate compliance becomes a bigger problem for larger beetles.\n\n6.

In the chronic study, interscapular implantation of sterile cotto

In the chronic study, interscapular implantation of sterile cotton pellets caused significant granuloma formation after 7 days, serving https://www.selleckchem.com/products/go-6983.html as control. ZJ extract significantly decreased granuloma tissue formation compared to control. The serum nitrite/nitrate level was significantly increased after 7 days in the control group due to chronic inflammation, but was decreased by ZJ extract. Moreover, phytochemical studies indicated the presence of jujubosides,

flavonoids and terpenes, which may produce the marked anti-inflammatory effect of ZJ fruit in acute and chronic inflammation, possibly by inhibiting nitric oxide expression. The study provides a scientific and ethnopharmacological rationale for the therapeutic use of ZJ fruit as an anti-inflammatory agent.”
“Tetra[alpha-(4-hydroxyphenoxy)] zinc phthalocyanine, ZnPc(alpha-OPhOH)(4), was synthesized and its

PKC412 ic50 photophysics was found to be sharply pH dependent. Dual fluorescence emission around 700 nm was observed when it is dissolved in basic solution. The fluorescence of the phthalocyanine can be sharply switched off at pH 9.1 due to the intramolecular photoinduced electron transfer (PET) in ZnPc(alpha-OPhONa)(4), formed by the deprotonation of ZnPc(alpha-OPhOH)(4). The photophysics of both ZnPc(alpha-OPhOH)(4) and ZnPc(alpha-OPhONa)(4) were studied in detail by UV-vis absorption, steady state and time-resolved fluorescence and transient absorption (TA) to reveal the fluorescence quenching Vorinostat clinical trial mechanism. Intra-molecular PET in ZnPc(alpha-OPhONa)(4)

from the donor, PhONa subunits, to the acceptor, ZnPc moiety, was characterized by the much smaller fluorescence quantum yield (0.003) and lifetime (< 0.20 ns). PET was further evidenced by the occurrence of charge separation state (CSS) in TA spectra, i.e. the bands due to anion radical of ZnPc and phenol radical. The lifetime of the charge separation state is ca. 3 ns, the efficiency of PET is ca. 99% and the rate constant of PET is 2.3 x 10(10) s(-1).”
“Attempt has been made to analyse the applicability of bacterial protease as an alternative agent of scouring of raw cotton fabrics in place of sodium hydroxide to remove the natural impurities present in the fibre. Protease scouring shows lower weight loss values (4.0%) compared to the alkali scouring (6.15%) though no significant differences were observed in the drop absorbency values. Also, the proteases retain higher activity levels even after prolonged treatments at different pH values and temperature conditions. Proteases exhibit potential to replace harsh conditions employed in the scouring of cotton fabrics at present.”
“Sarcopoterium spinosum (L.) Spach is a nanophanerophyte whose presence in Sicily is limited to the South-East of the island.

1% vs 50 9%; p = 03) without a difference in airway complication

1% vs 50.9%; p = .03) without a difference in airway complications. Other patient cofactors did not have an impact on perioperative tracheotomy or airway complication rate.\n\nConclusionsElective tracheotomy may safely be avoided in a subset of patients undergoing maxillectomy with microvascular reconstruction. Elective tracheotomy signaling pathway should be considered in patients

with cardiopulmonary risk factors. Head Neck, 2013″
“The prevalence of uric kidney stone increases regularly, due to its high correlation with obesity, HTA, metabolic syndrome, diabetes and elderly age. The surgical treatment of urolithiasis may not be always easy, and the lithotripsy has a very low efficiency. So, an appropriate medical prescription, with a good patient observance, is very effective regarding kidney stone dissolution as well as for recurrence prevention. The urinary pH is acidic, which is the main factor of lithogenesis. It must be corrected by the alkalization of the urines. The potassium citrate treatment is very efficient, and has low side effects. It must be prescribed diluted in 1.5 L of water, to be effective all over the day and to avoid gastro-intestinal disorders. (C) 2013 Elsevier Masson SAS. All rights reserved.”
“The study

of synchronization phenomena in coupled dynamical systems is an active field of research in many scientific disciplines including the neurosciences. Over the last decades, a selleck compound check details number of time series analysis techniques have been proposed to capture both linear and nonlinear aspects of interactions. While most

of these techniques allow one to quantify the strength of interactions, developments that resulted from advances in nonlinear dynamics and in information and synchronization theory aim at assessing directed interactions. Most of these techniques, however, assume the underlying systems to be at least approximately stationary and require a large number of data points to robustly assess directed interactions. Recent extensions allow assessing directed interactions from short and transient signals and are particularly suited for the analysis of evoked and event-related activity.”
“Soils derived from serpentinite (serpentine soils) often have low macronutrient concentrations, exceedingly low Ca:Mg molar ratios and high heavy metal concentrations, typically resulting in sparse vegetative cover. This combined suite of edaphic stresses is referred to as the “serpentine syndrome.” Although several plant community-level studies have been conducted to identify the most important edaphic factor limiting plant growth on serpentine, the primary factor identified has often varied by plant community and local climate. Few studies to date have been conducted in serpentine plant communities of alpine or boreal climates.

These effects coincided with reduced T(H)2 cytokine

These effects coincided with reduced T(H)2 cytokine AZD8931 levels in bronchoalveolar lavage fluid, but no effects on IgE levels were detected.\n\nConclusion: During immunotherapy, the tryptophan metabolites kynurenine, 3-hydroxykynurenine, and xanthurenic acid generated through IDO contribute to tolerance induction regarding T(H)2-dependent allergic airway inflammation.”
“Background: Cigarette smoking is an established risk factor of lung cancer development while the current epidemiological evidence is suggestive of an increased lung cancer risk associated with alcohol consumption. Dietary folate, which is present in a wide range of fresh fruits and vegetables,

may be a micronutrient that has a beneficial impact on lung carcinogenesis. Methylenetetrahydrofolate reductase (MTHFR) plays a crucial role in regulating folate metabolism, which affects both DNA synthesis/repair and methylation. We examined if smoking or alcohol consumption modify associations between MTHFR polymorphisms and lung cancer risk.\n\nMethods:

We evaluated the role of the MTHFR C677T (rs1801133) and A1298C (rs1801131) polymorphisms in a case-control study comprised of 462 lung cancer cases and 379 controls in a Japanese population. Logistic regression was used to assess the adjusted odds ratios (OR) and 95% confidence intervals (95% CI).\n\nResults: The TT genotype of the C677T polymorphism was significantly associated with an increased risk of lung cancer (OR = 2.27, 95% CI = 1.42 – 3.62, P < 0.01) while the A1298C polymorphism was not associated with lung cancer risk. The minor alleles of both polymorphisms behaved in a recessive selleckchem this website fashion. The highest risks were seen for 677TT-carriers with a history of smoking or excessive drinking (OR = 6.16, 95% CI = 3.48 – 10.9 for smoking; OR = 3.09, 95% CI = 1.64 – 5.81 for drinking)

compared with C-carriers without a history of smoking or excessive drinking, but no interactions were seen. The 1298CC genotype was only associated with increased risk among non-smokers (P < 0.05), and smoking was only associated with increased risks among 1298A-carriers (P < 0.01), but no significant interaction was seen. There was a synergistic interaction between the A1298C polymorphism and drinking (P < 0.05). The highest risk was seen for the CC-carriers with excessive drinking (OR = 7.24, 95% CI = 1.89 – 27.7) compared with the A-carriers without excessive drinking).\n\nConclusions: The C677T polymorphism was significantly associated with lung cancer risk. Although the A1298C polymorphism was not associated with lung cancer risk, a significant interaction with drinking was observed. Future studies incorporating data on folate intake may undoubtedly lead to a more thorough understanding of the role of the MTHFR polymorphisms in lung cancer development.”
“Background:\n\nSalivary dysfunction and oral disorders have been described in both type 1 and type 2 diabetes mellitus.

Methods: Consecutively, admitted patients with a first-episode of

Methods: Consecutively, admitted patients with a first-episode of schizophrenia, schizophreniform disorder, or schizoaffective disorder were screened for OCS, and these were measured with the Yale-Brown Obsessive-Compulsive Scale. Positive and Negative Syndrome Scale and Montgomery Asberg Depression Rating Z-DEVD-FMK research buy Scale were used to assess severity of other symptoms. The course of 3- and 5-year symptoms, psychotic relapse, substance use, remission, full recovery, suicide,

and social functioning were assessed. Results: One hundred and eighty-six consecutively admitted and consenting patients were included. Five years after admission, OCS could be assessed in 172 patients. Ninety-one patients (48.9%) reported no OCS symptoms on any of the assessments. OCS restricted to the first assessments occured in 15.1%, 13.4% had

persistent OCS, 7.0% had no OCS at first assessment but developed OCS subsequently, and 15.6% had intermittent OCS. The proportion of patients with comorbid OCD varied between 7.3% and 11.8% during follow-up. OCD was associated with more severe depressive symptoms and poorer premorbid functioning and social functioning at follow-up. Conclusions: The 5-year course of OCS/OCD in patients with first-episode schizophrenia or related disorders is variable. OCS/OCD comorbidity was not associated with a more severe course of psychotic symptoms and relapse. Comorbid OCD was associated with more severe depressive symptoms, social dysfunction and worse premorbid functioning. Specific treatment options for PD98059 mw schizophrenia patients with comorbid OCD are needed.”
“Objective: This study reports the long-term surgical Fosbretabulin supplier outcomes of elderly patients who underwent surgery using the modified Hackethal bundle nailing method on the basis of an approximately 10-year follow-up study.\n\nMethods: We treated 34 patients (7 males, 27 females) with 2- and 3-fragment fractures of the proximal humeral neck Their ages at the time of operation ranged from 65 to 75 years (mean age, 69.5 years). They were classified as Neer group I (G-I, 8.8%), III (G-III, 79.4%) or IV

(G-IV 11.8%). The duration of follow-up in patients averaged 130.6 months (range: 125.0 – 156.0 months). Patients were graded according to the Constant-Murley (CM) scoring system. Pre-operative and postoperative X-rays were also assessed.\n\nResults: All the fractures united within 6 9 weeks, with an average of 7.4 weeks. The mean overall Constant score was 80.0 points (G-I: 83.3; G-III: 80.5; G-IV: 75.6). Among the 34 patients, 30 (88.2%) obtained excellent results and 4 (11.8%) obtained good results. Mal-union in the coronal plane was observed in two patients (6.28%) who had 160 degrees angulation in three part fracture. Mal-union of the greater tuberosity occurred in one patient (3.14%) leading to limitation of abduction to 90 degrees.

Tract reconstruction, however, often suffers from a large number

Tract reconstruction, however, often suffers from a large number of false-negative

results when a simple line propagation algorithm is used. This limits the application of this technique to only the core of prominent white matter tracts. By employing probabilistic path-generation algorithms, connectivity between a larger number of anatomical regions can be studied, but an increase in the number of false-positive results is inevitable. One of the causes of the inaccuracy is the complex axonal anatomy within a voxel; however, highangular resolution (HAR) methods have been proposed to ameliorate this limitation. However, HAR data are relatively rare due to the long scan times required and the low signal-to-noise ratio. In this study, we tested a probabilistic path-finding method in which two anatomical EGFR inhibitor regions with known connectivity

were pre-defined and a path that maximized agreement HDAC inhibitor with the DTI data was searched. To increase the accuracy of the trajectories, knowledge-based anatomical constraints were applied. The reconstruction protocols were tested using DTI data from 19 normal subjects to examine test-retest reproducibility and cross-subject variability. Fifty-two tracts were found to be reliably reconstructed using this approach, which can be viewed on our website. (C) 2013 Elsevier Inc. All rights reserved.”
“The purpose of this study was to compare the microbial profiles on the tongue dorsa of healthy subjects and subjects with halitosis using polymerase chain reaction-based denaturing gradient gel electrophoresis (PCR-DGGE). Tongue dorsum scrapings from five healthy subjects and six subjects with halitosis were analyzed by PCR-DGGE using primers specific for the V6 to V8 region of the eubacterial 16S rRNA gene. A dendrogram was derived from the PCR-DGGE fingerprints and the prominent DGGE bands of interest were identified through DNA sequencing. The similarity of the PCR-DGGE fingerprints was determined using

the unweighted pair group method with an arithmetic mean Nepicastat dendrogram derived using Dice’s Coefficient of Similarity. The sequence of PCR amplicons indicated that the microbial species most associated with halitosis were Haemophilus parainfluenzae and a phylotype of Lachnospiraceae (Lachnospiraceae genomosp. C1), whereas Streptococcus salivarius subsp. salivarius, Neisseria mucosa and Neisseria cinerea were species that did not appear to be associated with halitosis and are likely part of the healthy tongue flora. These results suggest that the presence of H. parainfluenzae and Lachnospiraceae genomosp. C1 may be associated with a shift in the balance of oral microbes in subjects with halitosis.”
“Objective.

The combination of the three serum markers and uterine artery Dop

The combination of the three serum markers and uterine artery Doppler PI has the highest prediction value for pre-eclampsia. Copyright (C) 2011 ISUOG. Published by John Wiley & Sons, Ltd.”
“The European rabbit (Oryctolagus cuniculus) is a conservation and social dilemma in the Canary Islands. It is the main prey of endangered species, it causes severe impacts on vegetation, as well as has a considerable hunting economic value but damages agriculture. Salubrinal datasheet We assessed drivers of European rabbit habitat selection on Fuerteventura Island (Canary Islands, Spain) in order to understand the ecology and to contribute with data for managing this

introduced species. To measure rabbit abundance, we counted the total number of fresh pellets and latrines. We used Generalized Linear Models (GLMs) to analyze the relationship between rabbit abundance and four groups of variables that represented the biological requirements of the species (environmental,

food resources, refuges/shelters, and biological interactions). Hierarchical partitioning techniques were used to estimate the explanatory Ruboxistaurin capacity of these different groups of variables. Our model better explained fresh pellet abundance (89% of total deviance) than latrine abundance (57%). Variables related to food resources best explained the abundance of both latrines and pellets. We identified a set of plant species highly correlated with rabbit abundance, which probably makes up the species’ diet. Variables relating to refuge/shelter and the environmental were also relevant. Interactions with other mammals did not strongly affect rabbit abundance on Fuerteventura Island. Mean annual precipitation

and temperature were variables that individually best explained abundance, although half of their relevance is shared with others non-environmental variables. Our results provide policy makers and land-managers with applied information on the relationship between rabbit populations and micro-scale components of Fuerteventura.”
“Competition between males is a key component of the agonistic intrasexual interactions that influence resource acquisition, social system dynamics, and ultimately reproductive success. Sexual selection C59 cost theory predicts that traits that enhance success in intrasexual competition (particularly male-male competition) should be favored. In vertebrates, this often includes body size and aggression, with larger and/or more aggressive males outcompeting smaller or less aggressive conspecifics. The majority of studies consider aggression as a flexible trait which responds to local social or environmental conditions. However, aggression frequently shows considerable within-individual consistency (i.e., individuals have identifiable aggressive behavioral types). Little is known about how such consistency in aggression may influence competition outcomes.