The male to female ratio of newborn infants in Japan in relation to climate change, earthquakes, fetal deaths, and singleton male and female birth weights

Sexual segregation in ungulates has been documented for many species including bison. However, male and female bison do not differ in their pattern of habitat selection. In the present study we observed that a fraction of bison groups did not have young (<2 years) despite the presence of males and females. The male to female ratio in these groups was 2.4. We call them adult groups, in contrast to mixed groups, where young were present and the male to female ratio was 0.4. The proportion of cows with young (mothers) in a group was negatively correlated with the male to female ratio, suggesting that mothers associated more often with other cows than with bulls. Before the rut, cows without young (non-mothers) spent less time feeding than either mothers or bulls. However, mothers and non-mothers did not differ in the number of steps per minute they took while grazing, and both types of cows stepped faster than bulls. We suggest that cows feed more selectively than bulls and that the differing foraging strategies result in temporal but not spatial segregation of the sexes. Possibly as a result of similar nutritional demands, mothers tended to aggregate, forming nursery groups. We suggest that the formation of nursery groups can also serve to protect calves through a dilution effect of predation. Whether mothers actually prefer to associate with other mothers remains to be investigated.

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Optimization of reproduction of ricefish endemic to Southeast Sulawesi Oryzias woworae Parenti & Hadiaty, 2010 through different sex ratios in spawning

Jurnal Iktiologi Indonesia ◽

10.32491/jii.v21i3.589 ◽

2021 ◽

Vol 21 (3) ◽

pp. 235-251

Author(s):

Mohamad Ayip Firmansyah ◽

Mustahal Mustahal ◽

Mas Bayu Syamsunarno ◽

Muh Herjayanto

Keyword(s):

Water Quality ◽

Sex Ratio ◽

Ornamental Fish ◽

Egg Hatching ◽

Female Ratio ◽

Male And Female ◽

Status Information ◽

The Difference ◽

Endangered Status ◽

Male To Female

Oryzias woworae has a beautiful color and has been traded as ornamental fish. This species is an endemic ricefish from Muna Island, Southeast Sulawesi, and is threatened with endangered status. Information on the optimal spawning sex ratio in O. woworae is unknown. This study aimed was to examine the optimization of reproduction based on the sex ratio of male: female broodstock O. woworae involved in spawning. The sex ratio of male: female spawning broodstock used were 1:1, 1:2, 1:3, and 1:4. The male and female brooders used had a total length of 3,1 ± 0,5 cm and 2,5 ± 0,5 cm. After adaptation, the broodstock of O. woworae was put into aquariums according to the treatment, and each container contained three spawning substrates. The harvesting of eggs on the substrate is carried out two times a day. The results showed that spawning O. woworae with a ratio of 1♂: 4♀ produced the lowest number of eggs and was significantly different with ratios of 1♂: 1♀ and 1♂: 2♀ (P<0,05). The ratio of 1♂ : 3♀ gave the highest egg hatching of 55% but was not significantly different from other treatments (P>0,05). The difference in male and female ratios did not affect the survival rate of O. woworae larvae (P>0,05), with values from 91,9-100%. The highest larvae produced was found in the spawning ratio of 1♂ : 3♀ with 37 larvae but not significantly different from other treatments (P>0,05). The water quality values during the study were temperature 26,5-310C, pH 5,5-8,8, and dissolved oxygen 5,3-6,0 mg L-1. O. woworae broodstock spawning can be optimized with a male to female ratio of 1:3.

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Reflecting on the current scenario and forecasting the future demand for medical doctors in South Africa up to 2030: towards equal representation of women

Human Resources for Health ◽

10.1186/s12960-021-00567-2 ◽

2021 ◽

Vol 19 (1) ◽

Author(s):

Ritika Tiwari ◽

Angelique Wildschut-February ◽

Lungiswa Nkonki ◽

René English ◽

Innocent Karangwa ◽

...

Keyword(s):

Gender Equity ◽

Medical Profession ◽

Population Group ◽

Medical Doctors ◽

Female Ratio ◽

Male And Female ◽

Significance Level ◽

Representation Of Women ◽

Significant Difference ◽

Male To Female

Abstract Background Increasing feminization of medical professions is well-acknowledged. However, this does not always equate to equitable representation of women within medicine, regarding their socio-demographic indicators, regions, sectors and fields of practice. Thus, this paper quantifies the gap in supply of female medical doctors in relation to demand, towards reaching different gender equity scenarios. Methods A retrospective review of the Health Professions Council of South Africa’s (HPCSA) database on registered medical doctors (medical practitioners and medical specialists) from 2002 until 2019 was utilized as an indicator of supply. Descriptive statistics were used to summarize data, and inferential statistics (considering a significance level of 0.05) were utilized to determine the association between the number of male and female doctors, disaggregated by demographic variables. We forecasted future gaps of South African male and female doctors up to 2030, based on maintaining the current male-to-female ratio and attaining an equitable ratio of 1:1. Results While the ratio of female doctors per 10 000 population has increased between 2000 and 2019, from 1.2 to 3.2, it remains substantially lower than the comparative rate for male doctors per 10 000 population which increased from 3.5 in 2000 to 4.7 in 2019. Men continue to dominate the medical profession in 2019, representing 59.4% (27,579) of medical doctors registered with the HPCSA with females representing 40.6% (18,841), resulting in a male-to-female ratio of 1:0.7. Female doctors from the Black population group have constantly grown in the medical workforce from 4.4% (2000), to 12.5% (2019). There would be a deficit of 2242 female doctors by 2030 to achieve a 1:1 ratio between male and female medical doctors. An independent-samples t-test revealed that there was a significant difference in the number of male and female doctors. The Kruskal–Wallis test indicated that there was a sustained significant difference in terms of the number of male and female doctors by population groups and geographical distribution. Conclusions Based on the investigation, we propose that HRH planning incorporate forecasting methodologies towards reaching gender equity targets to inform planning for production of healthcare workers.

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Disparities between IgG4-related kidney disease and extrarenal IgG4-related disease in a case–control study based on 450 patients

Scientific Reports ◽

10.1038/s41598-021-89844-7 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Qiaozhu Zeng ◽

Jingyuan Gao ◽

Xinyu Zhang ◽

Aichun Liu ◽

Zhenfan Wang ◽

...

Keyword(s):

Kidney Disease ◽

Clinical Laboratory ◽

Imaging Finding ◽

Age At Onset ◽

Female Ratio ◽

Related Disease ◽

Igg4 Related Disease ◽

Peking University ◽

Chinese Cohort ◽

Male To Female

AbstractWe aimed to compare the demographic, clinical and laboratory characteristics between IgG4-related kidney disease (IgG4-RKD+) and extrarenal IgG4-related disease (IgG4-RKD−) in a large Chinese cohort, as well as describing the radiological and pathological features of IgG4-RKD+. We retrospectively analyzed the medical records of 470 IgG4-related disease (IgG4-RD) patients at Peking University People’s Hospital from January 2004 to January 2020. The demographic, clinical, laboratory, radiological and pathological characteristics between IgG4-RKD+ and IgG4-RKD− were compared. Twenty IgG4-RD patients who had definite etiology of renal impairment including diabetes, hypertension and etc. were excluded. Among the remained 450 IgG4-RD patients, 53 were diagnosed with IgG4-RKD+ . IgG4-RKD+ patients had older age at onset and at diagnosis. Male to female ratio of IgG4-RKD+ patients is significantly higher. In the IgG4-RKD+ group, the most commonly involved organs were salivary gland, lymph nodes and pancreas. It was found that renal function was impaired in approximately 40% of IgG4-RKD+ patients. The most common imaging finding is multiple, often bilateral, hypodense lesions. Male sex, more than three organs involved, and low serum C3 level were risk factors for IgG4-RKD+ in IgG4-RD patients. These findings indicate potential differences in pathogenesis of these two phenotypes.

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P129 The utility of routine operative swab culture in uncomplicated peri-anal abscesses

BJS Open ◽

10.1093/bjsopen/zrab032.128 ◽

2021 ◽

Vol 5 (Supplement_1) ◽

Author(s):

Apoorva Khajuria ◽

Tuba Rahim ◽

Mariam Baig ◽

Kai Leong ◽

Apoorva Khajuria

Keyword(s):

Inflammatory Bowel Disease ◽

Perianal Abscess ◽

Female Ratio ◽

Incision And Drainage ◽

Common Presentation ◽

History Of ◽

Inflammatory Bowel ◽

Operative Findings ◽

The Cost ◽

Male To Female

Abstract Introduction Despite perianal abscess being a common presentation, certain aspects of its management remain controversial, especially the routine use of intra-operative swab cultures. Methods A retrospective review of patients that underwent incision and drainage procedures for a perianal abscess over a six-month period was undertaken. Results Over 6 months, 50 patients were identified. The male to female ratio was 3:1 and median ASA score was 1. Only 6/50 patients presented with recurrent abscess and 1 patient had history of inflammatory bowel disease. On the basis of operative findings, 39 patients (78%) had uncomplicated abscess (not associated with cellulitis, sinus or fistula); swab cultures were performed in 26 (67%) of these patients. All patients were discharged on the same day; microbiology reports did not impact the treatment and no patients were followed up in clinic post-operatively or presented with recurrence. The number of unnecessary microbiology swabs undertaken in this cohort equates to approximately 52 unnecessary swabs a year. The cost of one swab is £10.10p, which means £520 could potentially be saved annually. Conclusion Routine intra-operative swab cultures do not impact management decisions, add to unnecessary costs and therefore should not be undertaken in uncomplicated or first presentation of peri-anal abscesses.

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High rates of gastroesophageal cancers in patients with dyspepsia undergoing upper gastrointestinal endoscopy in Uganda

Endoscopy International Open ◽

10.1055/a-1480-7231 ◽

2021 ◽

Vol 09 (07) ◽

pp. E997-E1000

Author(s):

Ronald Mbiine ◽

Cephas Nakanwagi ◽

Olivia Kituuka

Keyword(s):

Positive Association ◽

Referral Hospital ◽

Outcome Variable ◽

Mulago Hospital ◽

Upper Gastrointestinal Endoscopy ◽

Female Ratio ◽

Mulago National Referral Hospital ◽

Male To Female ◽

Upper Gastrointestinal ◽

National Referral Hospital

Abstract Background and study aims Dyspepsia is the most common presenting symptom in the gastrointestinal clinic of Mulago National Referral hospital. The etiology is essentially not fully described in our patient population. This study was therefore conducted to establish the causes of dyspepsia based on endoscopic diagnosis among patients with dyspepsia seeking care at the National Referral hospital of Uganda. Patients and methods This retrospective study conducted in the endoscopy unit of Mulago hospital reviewed 356 patient endoscopy reports spanning January 2018 to July 2020 with a focus on those with a referral indication of dyspepsia. Age and sex were the independent variables of interest while the endoscopy findings as reported by the endoscopist were the outcome variable of interest. Results Of the 356 endoscopy reports reviewed, 159 met the inclusion criterion of dyspepsia as the indication. Participant mean age was 47.7 years (± 16.53) with the majority (25.79 %) in the fifth decade while the male to female ratio was 1. The majority of patients had organic dyspepsia (90.57 %) while the commonest finding was gastritis 69 (43.4 %). Gastroesophageal cancers represented (18) 11.32 % of all findings. There was a positive association between age > 50 years with gastroesophageal cancers (7.639) as well as age < 50 years and functional dyspepsia (2.794); however, all these were not statistically significant (P = 0.006 and (P = 0.095, respectively). Conclusions Organic/structural dyspepsia comprises over 90 % of investigated dyspepsia with 11 % comprising cancer among patients seeking endoscopy at the National Referral Hospital of Uganda.

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Astrocytomas of the spinal cord in children and adolescents

Journal of Neurosurgery ◽

10.3171/jns.1985.63.5.0669 ◽

1985 ◽

Vol 63 (5) ◽

pp. 669-675 ◽

Cited By ~ 135

Author(s):

Ronald Reimer ◽

Burton M. Onofrio

Keyword(s):

Spinal Cord ◽

Histological Grade ◽

Extended Period ◽

Spinal Deformities ◽

Duration Of Symptoms ◽

Female Ratio ◽

Content Type ◽

Orthopedic Procedure ◽

Male To Female ◽

Fine Print

✓ The authors review 32 cases of spinal cord astrocytoma in patients under 20 years of age who were treated at the Mayo Clinic between 1955 and 1980. There was a 1.3:1 male to female ratio. Twenty patients were between 6 and 15 years of age at the time of diagnosis. The duration of symptoms prior to definitive diagnosis varied from 5 days to 9 years, with an average of 24 months. The most common symptoms were pain (62.5%), gait disturbance (43.7%), numbness (18.8%), and sphincteric dysfunction (18.8%). The most common neurological findings were a Babinski response (50.0%), posterior column sensory dysfunction (40.6%), and paraparesis (37.5%). A median follow-up period of 8.6 years (range 0.8 to 25.5 years) revealed that the survival time diminished with increased histological grade of the astrocytoma (p < 0.001). The development of postlaminectomy spinal deformities represented a serious postoperative complication. This occurred in 13 patients and was first recognized between 8 and 90 months postoperatively. Six deformities occurred following cervical laminectomy, and eight patients required at least one orthopedic procedure. It is crucial to follow these patients for an extended period of time to watch for postoperative spinal deformities.

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The Risk of Partner Aggression Research: Impact of Laboratory Couples Conflict Protocols on Participants

Violence and Victims ◽

10.1891/0886-6708.21.4.483 ◽

2006 ◽

Vol 21 (4) ◽

pp. 483-497 ◽

Cited By ~ 5

Author(s):

Daniela J. Owen ◽

Richard E. Heyman ◽

Amy M. Smith Slep

Keyword(s):

Intimate Partner Violence ◽

Partner Violence ◽

Research Impact ◽

Intimate Partner ◽

Partner Aggression ◽

Male And Female ◽

Impact Measure ◽

The Impact ◽

Male To Female ◽

Couples Conflict

The impact of male-to-female intimate partner violence (IPV) research on participants is unknown. A measure of impact was given to participants in an IPV study to assess systematically the impact of completing questionnaires, engaging in conflict conversations, and being interviewed individually about anger escalation and de-escalation during the conversations. Participants completed a six-question, Likert-scaled impact measure. Both male and female participants rated the impact of the study as helpful to them personally and to their relationships. Female participants rated different segments of the study as more helpful to themselves and their relationships, while male participants did not find any segment of the study to have a different impact than other segments.

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Clinicohematological Study of Thrombocytosis in Children

ISRN Hematology ◽

10.1155/2014/389257 ◽

2014 ◽

Vol 2014 ◽

pp. 1-4 ◽

Cited By ~ 9

Author(s):

Nathiya Subramaniam ◽

Suneel Mundkur ◽

Pushpa Kini ◽

Nalini Bhaskaranand ◽

Shrikiran Aroor

Keyword(s):

Platelet Count ◽

Myeloid Leukemia ◽

Prospective Observational Study ◽

Myelogenous Leukemia ◽

Distribution Width ◽

Female Ratio ◽

Reactive Thrombocytosis ◽

Acute Myelogenous ◽

Male To Female ◽

Primary Thrombocytosis

Introduction. Primary thrombocytosis is very rare in children; reactive thrombocytosis is frequently observed in children with infections, anemia, and many other causes. Aims and Objectives. To identify the etiology of thrombocytosis in children and to analyze platelet indices (MPV, PDW, and PCT) in children with thrombocytosis. Study Design. A prospective observational study. Material and Methods. A total of 1000 patients with thrombocytosis (platelet > 400×109/L) were studied over a period of 2 years. Platelet distribution width (PDW), mean platelet volume (MPV), and plateletcrit (PCT) were noted. Results. Of 1000 patients, 99.8% had secondary thrombocytosis and only two children had primary thrombocytosis (chronic myeloid leukemia and acute myelogenous leukemia, M7). The majority of the children belonged to the age group of 1month to 2 years (39.7%) and male to female ratio was 1.6 : 1. Infection with anemia (48.3%) was the most common cause of secondary thrombocytosis followed by iron deficiency alone (17.2%) and infection alone (16.2%). Respiratory infection (28.3%) was the predominant infectious cause observed. Thrombocytosis was commonly associated with IDA among all causes of anemia and severity of thrombocytosis increased with severity of anemia (P=0.021). With increasing platelet count, there was a decrease in MPV (<0.001). Platelet count and mean PDW among children with infection and anemia were significantly higher than those among children with infection alone and anemia alone. None were observed to have thromboembolic manifestations. Conclusions. Primary thrombocytosis is extremely rare in children than secondary thrombocytosis. Infections in association with anemia are most commonly associated with reactive thrombocytosis and severity of thrombocytosis increases with severity of anemia.

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