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3.
Biopsychosoc Med ; 17(1): 25, 2023 Jul 19.
Article in English | MEDLINE | ID: mdl-37468978

ABSTRACT

BACKGROUND: Generalised anxiety disorder (GAD) is a frequent and severe disorder among older adults. For older adults with GAD the effect of the recommended treatment, cognitive behaviour therapy (CBT), is reduced. Physical exercise (PE) may enhance the effect of CBT by improving cognitive function and increasing levels of brain-derived neurotrophic factor (BDNF), a predictor of the effect of CBT in patients with anxiety. The aim of the study was to assess the feasibility of a randomized controlled trial (RCT) investigating treatment effect of the combination of CBT and PE for GAD in a sample of older adults, including procedures for assessment and treatment. METHODS: Four participants aged 62-70 years (M = 65.5, SD = 3.2) with a primary diagnosis of GAD were included. Participants received 15 weeks of PE in combination with 10 weeks of CBT. Participants completed self-report measures, and clinical, biological, physiological and neuropsychological tests at pre-, interim- and post-treatment. RESULTS: Procedures, protocols, and results are presented. One participant dropped out during treatment. For the three participants completing, the total adherence to PE and CBT was 80% and 100%, respectively. An independent assessor concluded that the completers no longer fulfilled the criteria for GAD after treatment. Changes in self-report measures suggest symptom reduction related to anxiety and worry. The sample is considered representative for the target population. CONCLUSIONS: The results indicate that combining CBT and PE for older adults with GAD is feasible, and that the procedures and tests are suitable and manageable for the current sample. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02690441. Registered on 24 February 2016, https://clinicaltrials.gov/ct2/show/NCT02690441 .

4.
Neurosci Biobehav Rev ; 149: 105163, 2023 06.
Article in English | MEDLINE | ID: mdl-37028578

ABSTRACT

Fear-induced bradycardia, a transient heart rate deceleration related to a threatening event, is a powerful technique used to assess fear conditioning in humans. During the last century, studies highlighted its usefulness, even when applied to patients with various psychiatric disorders. Here, we provide an insight into these first steps in the field as well as modern works, which helped in refining the methodology. As data is still limited, future endeavors will continue to deepen the knowledge on fear-induced bradycardia and ensure its use as a biomarker to expedite and improve psychiatric interventions, thus lowering the socio-economic burden associated with these disorders.


Subject(s)
Bradycardia , Mental Disorders , Humans , Fear/physiology , Heart Rate/physiology
5.
Plast Reconstr Surg Glob Open ; 10(5): e4318, 2022 May.
Article in English | MEDLINE | ID: mdl-35572189

ABSTRACT

No consensus exists on ideal perioperative management or anticoagulation regimen for free flap reconstruction of the head and neck. Perceived benefits from antiplatelet therapy need to be balanced against potential complications. Ketorolac, a platelet aggregation inhibitor and a parenteral analgesic, was introduced as part of a standardized perioperative protocol at our institution. In this study, we aimed to examine the impact of implementation of this protocol as well as complications associated with the routine use of perioperative ketorolac in a diverse group of patients who underwent head and neck free flap reconstruction. Methods: A single institution retrospective review was performed, including all patients who underwent head and neck free flap reconstruction between October 2016 and November 2019. Patients were divided into two cohorts: those who received ketorolac as part of a standardized protocol, and those who did not. Results: Twenty-four consecutive patients with 24 head and neck free flaps were evaluated. Eighteen patients were in the standard protocol, and six were not. There were no microvascular thromboses, flap failures, or hematomas in either group. Intensive care unit length of stay and opiate use were significantly reduced in the standardized protocol group. Conclusions: A standardized perioperative protocol for head and neck free flap reconstruction can reduce hospital and intensive care unit length of stay. No statistically significant differences in complication rates were identified when comparing ketorolac use and perioperative regimens among patients undergoing a diverse set of microsurgical head and neck free flap reconstructions.

6.
Am Surg ; 88(7): 1675-1679, 2022 Jul.
Article in English | MEDLINE | ID: mdl-33626892

ABSTRACT

PURPOSE: A universally accepted treatment algorithm for rare pediatric nasoorbitoethmoid (NOE) fractures has yet to be established. In this study, the authors examine how severity of pediatric NOE fractures interplays with patient characteristics, management choices, and complications from injury and surgical intervention at our institution. METHODS: A retrospective chart review was performed for all cases of pediatric NOE fracture at a level 1 trauma center (University Hospital in Newark, New Jersey) between 2002 and 2014. RESULTS: Fifteen of 1922 patients met our inclusion criteria. Ten (66.7%) demonstrated Markowitz type I injuries, 2 (13.3%) had type II NOEs, and 3 (20%) sustained type III fractures. Five (33.3%) of our patients were only monitored. Six (40.0%) were treated with plate fixation. One patient (6.7%) required enucleation alone, while 1 (6.7%) warranted enucleation with medial canthoplasty and plate fixation. Transnasal canthopexy was performed for 1 patient (6.7%). Zero patients managed without surgery had complications at 1-year follow-up. Surgical intervention was associated with complications in 4 of 15 patients. Both nonoperative treatment and plate fixation were associated with a higher rate of complications from initial injury or subsequent therapy when than other mentioned forms of treatment (P = .004). CONCLUSION: Nonoperative management for nondisplaced fractures is associated with zero complications at 1-year follow-up in our data; plate fixation and watchful waiting yield significantly fewer postoperative complications and injury sequelae than surgical intervention for medial canthal tendon and globe injuries.


Subject(s)
Fractures, Bone , Trauma Centers , Bone Plates , Child , Fractures, Bone/surgery , Humans , New Jersey , Retrospective Studies , Treatment Outcome
7.
Science ; 372(6545): 980-983, 2021 05 28.
Article in English | MEDLINE | ID: mdl-34045354

ABSTRACT

Climate change and other human activities are causing profound effects on marine ecosystem productivity. We show that the breeding success of seabirds is tracking hemispheric differences in ocean warming and human impacts, with the strongest effects on fish-eating, surface-foraging species in the north. Hemispheric asymmetry suggests the need for ocean management at hemispheric scales. For the north, tactical, climate-based recovery plans for forage fish resources are needed to recover seabird breeding productivity. In the south, lower-magnitude change in seabird productivity presents opportunities for strategic management approaches such as large marine protected areas to sustain food webs and maintain predator productivity. Global monitoring of seabird productivity enables the detection of ecosystem change in remote regions and contributes to our understanding of marine climate impacts on ecosystems.

8.
Eplasty ; 21: e5, 2021.
Article in English | MEDLINE | ID: mdl-35875510

ABSTRACT

Background: Pediatric nasal bone fractures presenting as isolated fractures or with concomitant facial injuries are rare and not well documented. Analysis of treatment at an urban, level-one trauma center provides insight into their management. Methods: Data were collected for pediatric nasal bone fractures diagnosed between January 2000 and December 2014. Patients were divided into groups based on presence or absence of isolated nasal bone fractures. Groups were compared using Chi-squared analysis, and a Bonferroni correction was used for a more conservative alpha (a = .004). Results: Assault was the most common etiology presenting in 46 of 122 pediatric nasal bone fractures. There was no significant difference in surgical versus non-surgical management of isolated and non-isolated nasal bone fractures (P = 0.98). Treatment for both was predominantly watchful waiting in 91% to 95% of the cases followed by closed reduction in 3.2% to 3.3%. In the patients with isolated fractures, 11.5% sustained intracranial hemorrhage, compared to 35.6% of multifracture cases (P = .002); 15.0% of isolated fractures sustained a traumatic brain injury, compared to 55.9% of multifracture cases (P = .000003). No significant difference in fatality existed between groups (P = 0.53). Conclusions: Multi-facial fracture cases were more likely to present with traumatic brain injuries and be admitted to the intensive care unit than isolated nasal bone fractures. Rates of surgical and non-surgical management were not significantly different between the 2 groups. Watchful waiting of pediatric nasal bone fractures was the management approach selected 92% to 95% of the time regardless of the presence or absence of concomitant facial fractures.

9.
Eplasty ; 21: e4, 2021.
Article in English | MEDLINE | ID: mdl-35603017

ABSTRACT

Background: Pediatric nasal bone fractures presenting as isolated fractures or with concomitant facial injuries are rare and not well documented. Analysis of treatment at an urban, level-one trauma center provides insight into their management. Methods: Data were collected for pediatric nasal bone fractures diagnosed between January 2000 and December 2014. Patients were divided into groups based on presence or absence of isolated nasal bone fractures. Groups were compared using Chi-squared analysis, and a Bonferroni correction was used for a more conservative alpha (a = .004). Results: Assault was the most common etiology presenting in 46 of 122 pediatric nasal bone fractures. There was no significant difference in surgical versus non-surgical management of isolated and non-isolated nasal bone fractures (P = 0.98). Treatment for both was predominantly watchful waiting in 91% to 95% of the cases followed by closed reduction in 3.2% to 3.3%. In the patients with isolated fractures, 11.5% sustained intracranial hemorrhage, compared to 35.6% of multifracture cases (P = .002); 15.0% of isolated fractures sustained a traumatic brain injury, compared to 55.9% of multifracture cases (P = .000003). No significant difference in fatality existed between groups (P = 0.53). Conclusions: Multi-facial fracture cases were more likely to present with traumatic brain injuries and be admitted to the intensive care unit than isolated nasal bone fractures. Rates of surgical and non-surgical management were not significantly different between the 2 groups. Watchful waiting of pediatric nasal bone fractures was the management approach selected 92% to 95% of the time regardless of the presence or absence of concomitant facial fractures.

11.
Aesthet Surg J ; 40(11): NP619-NP625, 2020 10 24.
Article in English | MEDLINE | ID: mdl-32501483

ABSTRACT

BACKGROUND: The ideal position of the nipple-areola complex (NAC) in the transgender population can be a challenge to determine. OBJECTIVES: The authors sought to determine the best location and aesthetics of the female to male NAC. METHODS: Patients who underwent female to male mastectomy with free nipple grafting were included. NAC position is confirmed utilizing a vertical coordinate at the level of the 4th rib near the border of the pectoralis muscle and a horizontal coordinate determined by dividing each unilateral chest into vertical thirds from midline to anterior axillary line laterally. The NAC position is confirmed at the junction of the middle and lateral third. Symmetry is ensured bilaterally by creating a triangle and transposing it side to side; the base lies from sternal notch to inframammary fold in the midline and the apex is adjusted to the NAC. A 24-question survey utilizing a 5-point Likert scale was distributed postoperatively to assess the patient's thoughts about their chest, nipples, scar, and overall experience with the gender affirmation process. RESULTS: Thirty-one patients were included in this study. Eighteen patients responded to the postmastectomy survey, all of whom were highly satisfied with the aesthetic result postoperatively. All patients felt comfortable with their exposed chest. Nipple location was particularly highly received with 100% satisfaction rate (mean Likert score, 4.72). Nipple size and shape received a mean Likert score of 4.17 and 3.89, respectively. CONCLUSIONS: The triple confirmation technique is an easy, reproducible method to guide the surgeon in relocation of the NAC.


Subject(s)
Breast Neoplasms , Mammaplasty , Transgender Persons , Female , Humans , Male , Mammaplasty/adverse effects , Mastectomy , Nipples/surgery , Retrospective Studies
12.
Biol Psychol ; 142: 80-89, 2019 03.
Article in English | MEDLINE | ID: mdl-30710565

ABSTRACT

Worrying is a central component of anxiety disorders. We tested whether non-invasive vagus nerve stimulation reduces negative thought intrusions in high worriers. Worry was assessed with a Breathing Focus Task, which consists of a pre-worry period, a worry induction, and a post-worry period. Ninety-seven high worriers were randomly allocated to receive transcutaneous electrical stimulation of the auricular branch of the vagus nerve at the concha (tVNS), or of the earlobe (sham stimulation) throughout the lab session. Participants who received tVNS reported significantly fewer negative thought intrusions during the pre-worry period, but the effects of tVNS after the worry induction were mixed. An exploratory analysis indicated that participants in the tVNS condition were more likely to report negative thought intrusions shortly after the worry induction, but became less likely to do so as the post-worry period went on. No effects of tVNS on RMSSD were observed. These findings provide preliminary indications that tVNS may decrease the occurrence of worrisome thoughts.


Subject(s)
Anxiety Disorders/psychology , Anxiety Disorders/therapy , Thinking/physiology , Transcutaneous Electric Nerve Stimulation/methods , Vagus Nerve Stimulation/methods , Adult , Anxiety Disorders/physiopathology , Female , Humans , Male , Vagus Nerve/physiology , Young Adult
13.
J Am Coll Radiol ; 16(4 Pt A): 446-450, 2019 Apr.
Article in English | MEDLINE | ID: mdl-30777648

ABSTRACT

Lung cancer screening with low-dose chest CT has been demonstrated to reduce lung cancer mortality among a subset of high-risk current and former smokers. Despite randomized trial evidence and widespread guideline recommendations, uptake of lung cancer screening among currently eligible individuals remains poor. Recent studies estimate that less than 5% of all eligible individuals have undergone screening. Moreover, inappropriate screening of ineligible individuals seems to be common, and among those who have been screened, follow-up may also be poor. In this review, the authors examine recent studies demonstrating the current state of suboptimal implementation of lung cancer screening. The authors also introduce both patient- and provider-facing evidence-based interventions that may improve implementation of screening. These include tailored navigation interventions to overcome patient barriers throughout the screening care continuum and interventions to improve the identification of eligible individuals for providers. Further evidence on best practices around the implementation of lung cancer screening is essential to ensure that recent evidence can be translated into practice to improve the early detection of lung cancer for high-risk individuals.


Subject(s)
Lung Neoplasms/diagnostic imaging , Mass Screening/statistics & numerical data , Patient Acceptance of Health Care , Tomography, X-Ray Computed , Early Detection of Cancer , Humans
14.
J Craniomaxillofac Surg ; 46(9): 1539-1543, 2018 Sep.
Article in English | MEDLINE | ID: mdl-30196858

ABSTRACT

PURPOSE: The aims of this study were as follows: To determine the national incidence of facial fractures among infants, toddlers, and children; to evaluate the types of facial fractures; and to analyze common products/activities associated with the fractures. MATERIALS AND METHODS: A retrospective review was conducted to explore patterns of facial fractures among infants (<1 year), toddlers (1-3 years), and children (3-5 years), using the National Electronic Injury Surveillance System (NEISS) from the Consumer Product Safety Commission (CPSC). The database was searched for emergency department (ED) visits involving facial fractures sustained by children 1 month through 5 years of age from 2004 through 2016 and analyzed for patient demographics, primary diagnosis and associated products/activities. Subset analyses were performed between age groups to determine the relationship between causes of injury and age using extrapolated national incidences. RESULTS: A total of 1507 ED visits for facial fractures among infants, toddlers, and children were obtained and extrapolated to an estimated total of 39,388 ED visits, averaging 3030 annually. The majority of these ED visits were for facial fractures that occurred at home. Most facial fractures sustained at the age period of 1 month-5 years old were nasal fractures. Facial fractures in infants were caused most commonly by floors or flooring materials, likely due to falls, while household items/furniture-related injuries were the most common cause of facial fractures in both toddlers and children. Facial fractures from playground equipment and riding toys were more common in children than in the other age groups. CONCLUSION: The reported trends in the incidence by age group and types of fracture can assist physicians by serving as supplement for clinical history and examination when encountering this challenging patient population. Our findings highlight preventative opportunities, particularly in baby care items and beds for reducing facial fractures in infants. Similarly, preventative opportunities are highlighted in household items and furniture for lowering the incidence of facial fractures in toddlers and children. Our study also suggests ensuring safe handling of playground equipment and riding toys for the prevention of facial fractures in children.


Subject(s)
Facial Injuries/epidemiology , Skull Fractures/epidemiology , Child, Preschool , Facial Injuries/etiology , Female , Humans , Infant , Male , Retrospective Studies , Skull Fractures/etiology , United States/epidemiology
15.
J Acad Nutr Diet ; 118(8): 1425-1437, 2018 08.
Article in English | MEDLINE | ID: mdl-30055710

ABSTRACT

BACKGROUND: Afterschool interventions have been found to improve the nutritional quality of snacks served. However, there is limited evidence on how these interventions affect children's snacking behaviors. OBJECTIVE: Our aim was to determine the impact of an afterschool intervention focused at the school district, site, family, and child levels on dietary consumption of foods and beverages served at snack. DESIGN: This was a secondary analysis of a group-randomized controlled trial. PARTICIPANTS/SETTING: Data were collected from 400 children at 20 afterschool sites in Boston, MA before (fall 2010) and after (spring 2011) intervention implementation. INTERVENTION: The Out-of-School Nutrition and Physical Activity intervention aimed to promote fruits, vegetables, whole grains, and water, while limiting sugary drinks and trans fats. Researchers worked with district foodservice staff to change snack foods and beverages. Teams of afterschool staff participated in three 3-hour learning collaborative sessions to build skills and created action plans for changing site practices. The intervention included family and child nutrition education. MAIN OUTCOME MEASURES: Research assistants observed dietary snack consumption using a validated measure on 2 days per site at baseline and follow-up. STATISTICAL ANALYSES PERFORMED: This study used multivariable regression models, accounting for clustering of observations, to assess the intervention effect, and conducted post-hoc stratified analyses by foodservice type. RESULTS: Children in intervention sites had greater decreases in consumption of juice (-0.61 oz/snack, 95% CI -1.11 to -0.12), beverage calories (-29.1 kcal/snack, 95% CI -40.2 to 18.0), foods with trans fats (-0.12 servings/snack, 95% CI -0.19 to -0.04), total calories (-47.7 kcal/snack, 95% CI -68.2 to -27.2), and increases in consumption of whole grains (0.10 servings/snack, 95% CI 0.02 to 0.18) compared to controls. In post-hoc analyses, sites with on-site foodservice had significant improvements for all outcomes (P<0.001), with no effect for sites with satellite foodservice. CONCLUSIONS: Results demonstrate that an afterschool intervention can improve children's dietary snack consumption, particularly at sites with on-site foodservice.


Subject(s)
Diet, Healthy/methods , Food Services , Health Promotion/methods , Snacks , Beverages , Boston , Child , Eating/psychology , Energy Intake , Exercise , Feeding Behavior/psychology , Female , Fruit , Humans , Male , Nutritive Value , Program Evaluation , Vegetables
16.
J Nutr Health Aging ; 21(10): 1250-1253, 2017.
Article in English | MEDLINE | ID: mdl-29188886

ABSTRACT

Vagally mediated heart rate variability (vmHRV), defined as the beat-to-beat fluctuations in a heart series mediated by the vagus nerve, serves as a non-invasive index of parasympathetic nervous system (PNS) activity. Lower resting state vmHRV is associated with greater body mass index (BMI), providing a psychophysiological pathway linking obesity with health and disease. However little research has been conducted to examine how BMI may influence PNS reactivity to orthostatic stress. The present study sought to explore this in a sample of 59 individuals (44 females, mean age = 24.37 years, age range 19-65 years). VmHRV was measured throughout the 5-minute baseline (sitting), orthostatic (standing), and recovery (sitting) conditions. Individuals were stratified into low (BMI < 20), moderate (BMI 20-25), and high (BMI > 25) BMI groups. Results indicate that the high BMI group had a greater decrease in vmHRV from baseline to standing in comparison to the moderate BMI group. Furthermore, the low BMI group showed lower vmHRV during recovery compared to baseline, suggesting that these individuals did not fully recover from the standing position. Taken together, these results extend previous literature showing that those with low and high BMI can show different yet maladaptive patterns of vmHRV in response to orthostatic stress.


Subject(s)
Autonomic Nervous System/physiology , Body Mass Index , Parasympathetic Nervous System/physiology , Posture/physiology , Vagus Nerve/physiology , Adult , Aged , Autonomic Nervous System/pathology , Female , Humans , Male , Middle Aged , Parasympathetic Nervous System/pathology , Young Adult
17.
Adv Struct Chem Imaging ; 3(1): 3, 2017.
Article in English | MEDLINE | ID: mdl-28261541

ABSTRACT

The data systems for X-ray free-electron laser (FEL) experiments at the Linac coherent light source (LCLS) are described. These systems are designed to acquire and to reliably transport shot-by-shot data at a peak throughput of 5 GB/s to the offline data storage where experimental data and the relevant metadata are archived and made available for user analysis. The analysis and monitoring implementation (AMI) and Photon Science ANAlysis (psana) software packages are described. Psana is open source and freely available.

18.
Psychol Med ; 46(8): 1597-612, 2016 06.
Article in English | MEDLINE | ID: mdl-26964517

ABSTRACT

Individuals engaging in self-injurious behavior (SIB) frequently report absence of pain during acts of SIB. While altered pain sensitivity is discussed as a risk factor for the engagement in SIB, results have been mixed with considerable variance across reported effect sizes, in particular with respect to the effect of co-morbid psychopathology. The present meta-analysis aimed to summarize the current evidence on pain sensitivity in individuals engaging in SIB and to identify covariates of altered pain processing. Three databases were searched without restrictions. Additionally a hand search was performed and reference lists of included studies were checked for potential studies eligible for inclusion. Thirty-two studies were identified after screening 720 abstracts by two independent reviewers. Studies were included if they reported (i) an empirical investigation, in (ii) humans, including a sample of individuals engaging in (iii) SIB and a group of (iv) healthy controls, (v) receiving painful stimulation. Random-effects meta-analysis was performed on three pain-related outcomes (pain threshold, pain tolerance, pain intensity) and several population- and study-level covariates (i.e. age, sex, clinical etiology) were subjected to meta-regression. Meta-analysis revealed significant main effects associated with medium to large effect sizes for all included outcomes. Individuals engaging in SIB show greater pain threshold and tolerance and report less pain intensity compared to healthy controls. Clinical etiology and age are significant covariates of pain sensitivity in individuals engaging in SIB, such that pain threshold is further increased in borderline personality disorder compared to non-suicidal self-injury. Mechanisms underlying altered pain sensitivity are discussed.


Subject(s)
Pain Threshold , Self-Injurious Behavior/physiopathology , Humans , Pain Measurement
19.
J Nutr Health Aging ; 19(9): 879-82, 2015 Nov.
Article in English | MEDLINE | ID: mdl-26482688

ABSTRACT

OBJECTIVES: To investigate the association of different measures of central (abdominal) and overall adiposity with autonomic nervous system (ANS) function, indexed by heart rate variability (HRV), in apparently healthy human adults. DESIGN AND MEASUREMENTS: Cross-sectional data of 8,538 participants (20% female, age: 41 ± 11 years, body mass index (BMI): 24 ± 4 kg/m2, waist circumference (WC): 91 ± 12 cm, waist-to-height ratio (WHtR): 0.45 ± 0.08) were available for analysis. RESULTS: All measures of adiposity were inversely correlated with vagally-mediated HRV indexed by RMSSD (all p<0.001). Strongest associations were found with WC and RMSSD (r = -0.29). Associations were stronger in males (WC r = -0.32) than in females (WC r = -0.23). Partial correlations revealed the same pattern for RMSSD (WC all pcc = -0.12 p<0.001; WC male pcc = -0.14 p<0.001; WC female pcc = -0.06 p<0.05). Correlation strength of BMI and WHtR with RMSSD were similar and significantly weaker compared to WC (p < .001) in unadjusted analysis. Overall, nonparametric Kendall's τb led to the same conclusions. CONCLUSION: The present data supports previous findings, that HRV is related to measures of adiposity in healthy individuals. In line with previous research, we found that WC is more strongly related to measures of HRV, indicating that WC best captures adiposity related risk.


Subject(s)
Adiposity , Autonomic Nervous System/physiology , Body Mass Index , Heart Rate , Obesity/physiopathology , Waist Circumference , Waist-Height Ratio , Adult , Cross-Sectional Studies , Employment , Female , Humans , Male , Middle Aged , Obesity/complications , Obesity, Abdominal/complications , Obesity, Abdominal/physiopathology , Reference Values , Sex Factors
20.
J Fish Biol ; 86(2): 527-543, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25640968

ABSTRACT

This study examined population density, habitat and diet of Dasyatis marianae, a recently discovered species, in the reef complex of Maracajaú in Rio Grande do Norte state, Brazil. The highest concentration of D. marianae occurred in seagrass beds. Habitat use differed significantly between sex and age classes, with females and juveniles using areas other than reefs. Females utilized primarily seagrass beds and juveniles occurred mainly along the sandy bottom near the beach, highlighting the importance of protecting these areas. Dasyatis marianae diet was characterized primarily by crustaceans (91·9% index of relative importance, IRI ), including shrimp, crabs and lobsters. The availability of prey in different habitat types influences occupation by D. marianae, but the prey selectivity of D. marianae, among other factors, may affect this relationship. Intense shrimp and lobster fishing in the region probably has an effect on preferred prey resources of this ray. Information on feeding habits of this species contributes to a better understanding of trophic dynamics and food webs, which is critical if ecosystem principles are to be integrated into fisheries management.

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