Hard to Conceive

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

conceive hyperbolic spaces ?

The grid cells discovered in the rodent medial entorhinal cortex have been proposed to provide a metric for Euclidean space, possibly even hardwired in the embryo. Yet one class of models describing the formation of grid unit selectivity is entirely based on developmental self-organization, and as such it predicts that the metric it expresses should reflect the environment to which the animal h...

متن کامل

Can rodents conceive hyperbolic spaces?

The grid cells discovered in the rodent medial entorhinal cortex have been proposed to provide a metric for Euclidean space, possibly even hardwired in the embryo. Yet, one class of models describing the formation of grid unit selectivity is entirely based on developmental self-organization, and as such it predicts that the metric it expresses should reflect the environment to which the animal ...

متن کامل

Do subfertile women adjust their habits when trying to conceive?

AIM The aim of this study was to investigate lifestyle habits and lifestyle adjustments among subfertile women trying to conceive. MATERIALS AND METHODS Women (n = 747) were recruited consecutively at their first visit to fertility clinics in mid-Sweden. Participants completed a questionnaire. Data were analyzed using logistic regression, t tests, and chi-square tests. RESULTS The response ...

متن کامل

Does Sex Matter? Ageing and Ability to Conceive

Recently there has been increasing interest in the estimation of age-specific fecundability as a result of the progressive postponement of age at family formation in Western countries. It must be noted, however, that the possible negative effects of the postponement could act not only on the physiological component of the ability to conceive but also on the behavioural component (i.e., sexual a...

متن کامل

Trying to conceive ? Why am I not pregnant yet?

My husband and I have been trying to conceive for two months now with no success. I'm 34 and he is 35. I have bought early ovulation tests and everything. My question to you is that it seems that my cervical fluid is never "egg white" slippery until a few days before my period. So what are some other symptoms that I need to pay attention to? I have been pregnant before but I terminated it. I wa...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: New England Journal of Medicine

سال: 2010

ISSN: 0028-4793,1533-4406

DOI: 10.1056/nejmcps0810360