60 research outputs found

    Sex-specific Personalities in the Purple Marsh Crab

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    Animals are considered to possess personalities when individuals differ in behavior, and these differences are consistent between situations. Several studies have identified personalities in diverse groups but less is known about personality variation between the sexes. In this study, we examined variation in two key personality traits (boldness, activity) in female and male purple marsh crabs (Sesarma reticulatum) using a semi-field approach. Specifically, we measured boldness and activity on two consecutive days using the same behavioral assays during each time point. Consistency (personality) was determined using Kendall’s coefficient of concordance based on Spearman correlation coefficients for each behavior. The results showed that personalities differed between the sexes. Females exhibited activity personalities but not boldness personalities. Males did not exhibit personalities for either behavior

    Eros Burning: Men in the Middle of Divorce

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    This research explores what happens to some men when, despite the best of intentions and heroic efforts on all sides, a marriage ends in divorce. Using a blend of alchemical hermeneutics and hermeneutic phenomenology, this qualitative study explores the lived experience of 5 heterosexual men who suffered psychologically in divorce. Divorce was examined from Freudian, Jungian, and archetypal perspectives using the depth psychological lenses of alchemy, mythology, and fairy tale. A hybrid method of qualitative analysis was created that incorporated the use of psychodrama to analyze the data. From the results of this study, the journey through divorce for suffering men can be seen as being comprised of 3 stages: a Coming Storm, a Tempest, and an Aftermath. The intrapsychic destruction experienced by many men in divorce was also viewed as an attempt at an undoing of the hieros gamos, or sacred marriage. From the results of this investigation, it is further postulated that such a divorce may be a psychological impossibility. The author’s experience as a divorced man informs his observations and conclusions

    Graft Intra-Articular Remodeling and Bone Incorporation in ACL Reconstruction: The State of the Art and Clinical Implications

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    The knee is one of the most frequently affected joints in sports trauma, and anterior cruciate ligament (ACL) injury and meniscal tears are the most common lesions. ACL reconstruction (ACLR) remains the treatment of choice for patients willing to return to their previous activity. There are different surgical techniques and different possible usable grafts. The graft used for ACLR surgery undergoes a bone incorporation process and an intra-articular remodelling named ligamentization until it reaches characteristics similar to the native ligament. After the first incorporation stage, the remodelling process is divided into an early stage that could last 4 weeks, a proliferative stage that lasts 4 to 12 weeks, and a final stage of ligamentization that could last over 1 year. The period of return to sport (RTS) after ACLR, which is becoming shorter and shorter, can be a high-risk period for athletes due to the risk of graft failure. This systematic review aims to define the phases of the ligamentization process considering graft type and fixation techniques, as well as the graft’s anatomopathological and biomechanical characteristics, to evaluate a criterion-based rehab progression and maximize patient outcomes for an RTS respecting graft biology. The rehabilitative program has to promote and optimize the graft remodelling and incorporation processes; moreover, it has to accommodate physiological graft healing and avoid overloading. An early RTS and noncompliance with the biological characteristics of the graft in the various phases are associated with a high incidence of re-injury
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