210 research outputs found

    Higher cost of finance exacerbates a climate investment trap in developing economies

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    Finance is vital for the green energy transition, but access to low cost finance is uneven as the cost of capital differs substantially between regions. This study shows how modelled decarbonisation pathways for developing economies are disproportionately impacted by different weighted average cost of capital (WACC) assumptions. For example, representing regionally-specific WACC values indicates 35% lower green electricity production in Africa for a cost-optimal 2 °C pathway than when regional considerations are ignored. Moreover, policy interventions lowering WACC values for low-carbon and high-carbon technologies by 2050 would allow Africa to reach net-zero emissions approximately 10 years earlier than when the cost of capital reduction is not considered. A climate investment trap arises for developing economies when climate-related investments remain chronically insufficient. Current finance frameworks present barriers to these finance flows and radical changes are needed so that capital is more equitably distributed

    Virilization Due to Androgen Hypersecretion in a Patient with Ovarian Leydig Cell Tumor: Diagnostic and Psychosocial Implications

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    Virilisasi akibat kelebihan hormon androgen yang terjadi pada wanita akan menimbulkan tanda-tanda seperti pembesaran klitoris, perubahan suara, tumbuhnya rambut di wajah dan tubuh yang menjadi ciri khas laki-laki. Virilisasi yang disebabkan oleh tumor ovarium tidak lebih dari 0,5% dari seluruh penyebab. Kami melaporkan kasus virilisasi akibat tumor sel Leydig pada ovarium kiri wanita usia 36 tahun. Kesalahan interpretasi, informasi medis yang saling bertentangan dan saran dari dokter sebelumnya membuat kebingungan dari pasien tersebut. Kami melakukan evaluasi diagnostik yang meliputi gambaran klinik, hormon, pencitraan, pemeriksaan patologi, molekuler serta pemeriksaan psikologi. Pemeriksaan hormon menunjukkan kadar testosteron yang sangat tinggi. Adanya tumor pada ovarium terdeteksi dari pemeriksaan laparoskopi. Biopsi pada ovarium kiri dilakukan oleh karena pasien menolak dilakukan pengangkatan ovarium. Hasil pemeriksaan patologi menunjukkan tumor sel Leydig tanpa adanya tanda keganasan. Pengelolaan menjadi kurang optimal karena faktor sosial budaya yang menghambat walaupun telah dilakukan konseling secara mendalam. Tumor sel Leydig pada ovarium dicurigai apabila terjadi virilisasi pada wanita usia reproduktif disertai peningkatan hormon androgen, massa ovarium pada pemeriksaan pencitraan dan dibuktikan dengan hasil biopsi. Hal ini penting sebelum memberikan saran maupun pengobatan kepada pasien. Kata kunci: diagnostik work up, virilisasi, sel tumor Leydig. ABSTRACT Virilization due to hyperandrogenism in women causes male signs and symptoms such as swelling of the clitoris, deepening of the voice, facial hair and increase in body hair. Virilization is caused by less than 0.5% of all ovarian tumors. Here we report a case of virilizing Leydig cell tumor of the left ovary in a 36 year old woman. Misinterpretation of symptoms, conflicting medical information and advice from previous doctors had confused the patient. We performed a diagnostic evaluation including clinical, hormonal parameters, imaging, anatomical pathology examinations, and psychological assessment. Blood analysis showed a high testosterone level. The presence of an ovarian tumor was confirmed by laparoscopy. Since the patient refused ovariectomy, a biopsy of the left ovary was performed. Pathology showed a Leydig cell tumor without histological signs of malignancy. In spite of extensive explanation and psychological counseling, cultural barriers prevented appropriate treatment. An ovarian Leydig cell tumor should always be considered for a woman in the reproductive age with symptoms of virilization. The diagnosis is suspected on the basis of an ovarian mass on examination and further investigation and should be proven by biopsy. Key words: diagnostic work up, virilization, Leydig cell tumor

    Pubertal induction and transition to adult sex hormone replacement in patients with congenital pituitary or gonadal reproductive hormone deficiency : an Endo-ERN clinical practice guideline

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    An Endo-European Reference Network guideline initiative was launched including 16 clinicians experienced in endocrinology, pediatric and adult and 2 patient representatives. The guideline was endorsed by the European Society for Pediatric Endocrinology, the European Society for Endocrinology and the European Academy of Andrology. The aim was to create practice guidelines for clinical assessment and puberty induction in individuals with congenital pituitary or gonadal hormone deficiency. A systematic literature search was conducted, and the evidence was graded according to the Grading of Recommendations, Assessment, Development and Evaluation system. If the evidence was insufficient or lacking, then the conclusions were based on expert opinion. The guideline includes recommendations for puberty induction with oestrogen or testosterone. Publications on the induction of puberty with follicle-stimulation hormone and human chorionic gonadotrophin in hypogonadotropic hypogonadism are reviewed. Specific issues in individuals with Klinefelter syndrome or androgen insensitivity syndrome are considered. The expert panel recommends that pubertal induction or sex hormone replacement to sustain puberty should be cared for by a multidisciplinary team. Children with a known condition should be followed from the age of 8 years for girls and 9 years for boys. Puberty induction should be individualised but considered at 11 years in girls and 12 years in boys. Psychological aspects of puberty and fertility issues are especially important to address in individuals with sex development disorders or congenital pituitary deficiencies. The transition of these young adults highlights the importance of a multidisciplinary approach, to discuss both medical issues and social and psychological issues that arise in the context of these chronic conditions.Peer reviewe

    Quality of Life in Late-Treated Patients With Disorders of Sex Development: Insights for Patient-Centered Care

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    Background: Patients with a disorder of sex development (DSD) are born with atypical genitals or may develop atypical genitals and atypical body appearance, if left untreated. Health related quality of life (HRQoL) was assessed in Indonesian patients to whom diagnostic procedures and medical intervention had been delayed. Method: Comparison of 118 patients born with DSD, aged 6–41 years (60 children, 24 adolescents, and 34 adults) and 118 healthy control subjects matched for gender, age, and residential setting. HRQoL was measured using a translation of the TACQOL/TAAQOL. Results: According to parental and children’s report, children with DSD reported more problems in social functioning and had less positive moods. Girls, in particular, reported problems in cognitive functioning. Adult patients reported more depressive moods, especially women, who reported more anger. No differences were found between in the adolescent groups. Conclusion: The data suggest that Indonesian children with DSD experienced more problems in social contact than non-affected Indonesian children, whereas Indonesian adults with DSD suffered from negative emotions more often than non-affected Indonesians. These findings on HRQoL are in line with findings on emotional functioning

    Addressing gaps in care of people with conditions affecting sex development and maturation

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    Differences of sex development are conditions with discrepancies between chromosomal, gonadal and phenotypic sex. In congenital hypogonadotropic hypogonadism, a lack of gonadotropin activity results primarily in the absence of pubertal development with prenatal sex development being (almost) unaffected in most patients. To expedite progress in the care of people affected by differences of sex development and congenital hypogonadotropic hypogonadism, the European Union has funded a number of scientific networks. Two Actions of the Cooperation of Science and Technology (COST) programmes - DSDnet (BM1303) and GnRH Network (BM1105) - provided the framework for ground-breaking research and allowed the development of position papers on diagnostic procedures and special laboratory analyses as well as clinical management. Both Actions developed educational programmes to increase expertise and promote interest in this area of science and medicine. In this Perspective article, we discuss the success of the COST Actions DSDnet and GnRH Network and the European Reference Network for Rare Endocrine Conditions (Endo-ERN), and provide recommendations for future research

    Radiative forcing from particle emissions by future supersonic aircraft

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    La industria nacional, para salir bien librada de la competencia generada por la apertura económica, requiere de capacitación, tecnología y organización que óptimice recursos, diseños y procesos. En el campo de las estructuras, los diseños deben ser seguros, para soportar cargas evitando deformaciones excesivas; funcionales, para posibilitar su construcción en la mforma más ventajosa y económica empleando secciones livianas, de fácil fabricación montaje y mantenimiento, para asegurar competitividad en el mercado

    A value-based healthcare approach: Health-related quality of life and psychosocial functioning in women with Turner syndrome

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    Objective: As part of the value-based healthcare programme in our hospital, a set of patient-reported outcome measures was developed together with patients and implemented in the dedicated Turner Syndrome (TS) outpatient clinic. This study aims to investigate different aspects of health-related quality of life (HR-QoL) and psychosocial functioning in women with TS in order to establish new possible targets for therapy. Design/Participants: A comprehensive set of questionnaires (EQ-5D, PSS-10, CIS-20, Ferti-QoL, FSFI) was developed and used to capture different aspects of HR-QoL and psychosocial functioning in a large cohort of adult women with Turner syndrome. All consecutive women, ≥18 years, who visited the outpatient clinic of our tertiary centre were eligible for inclusion. Results: Of the eligible 201 women who were invited to participate, 177 women (age 34 ± 12 years, mean ± SD) completed at least one of the validated questionnaires (88%). Women with TS reported a lower health-related quality of life (EQ-5D: 0.857 vs 0.892, P =.003), perceived more stress (PSS-10:14.7 vs 13.3; P =.012) and experienced increased fatigue (CIS-20: P <.001) compared to the general Dutch population. A relationship between noncardiac comorbidities (eg diabetes, orthopaedic complaints) and HR-QoL was found (R =.508). Conclusions: We showed that TS women suffer from impaired HR-QoL, more perceived stress and increased fatigue compared to healthy controls. A relationship between noncardiac comorbidities and HR-QoL was found. Especially perceived stress and increased fatigue can be considered targets for improvement of HR-QoL in TS women
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