Natural Sciences in the modern world: theoretical and practical research

The name Tanacetum vulgare L., also known as Common Tansy, is derived from the Greek word “athanasia”, which means “immortality”, most likely as a result of the fact that the flowers of this plant do not wilt when dried. This perennial herbaceous plant is widely distributed in North America, Europe, Asia, China, Japan, North Korea, and Russia. Tanacetum vulgare L. has been found growing wild in many states of the United States, Europe, and Asia along roadsides, in wastelands, and as a hedge. The chemical composition of the plant and its essential oils is affected by its growing environment and climate. It is well described in the literature for many plants. The plants with sectile leaves grow in Corsica (France), Sardinia, and Sicily (Italy), and some consider them to be a separate species (ssp. siculum). T. vulgare is a 50–100 cm tall perennial herbaceous plant. The stem is straight, branched from the middle, furrowed, glabrous, or slightly pubescent. The leaves are alternate, dark green on top, grayish on the bottom, and pubescent.

Обзор литературы посвящен минимально-инвазивному закрытию открытого артериального протока у детей различных возрастных групп — актуальной теме современной хирургии. Рассматриваются ключевые вопросы, такие как оптимальный возраст для вмешательства и выбор наиболее эффективного метода закрытия. На примере лечения данной патологии прослеживается прогресс хирургических технологий, произошедший в конце XX — начале XXI века. Дается характеристика различных способов лечения, включая классическую торакотомию и современные минимальноинвазивные процедуры, с указанием их преимуществ и недостатков. Также обозначены нерешенные проблемы, требующие дальнейших исследований, что подчеркивает необходимость оптимизации подходов к лечению открытого артериального протока.

Poliploidiya va turlararo  duragaylash jarayonlari  orqali  yangi  genetik  variantlar yaratiladi.  Ushbu  jarayonlar  o'simliklarning genetik  xilma-xilligini  oshirishga  yordam beradi,  bu  esa  ularning  yangi  muhit sharoitlariga moslashuvchanligini ta'minlaydi. Olingan  yangi  poliploid  va  duragaylangan o'simliklar  qishloq  xo'jalik  mahsulotlarining sifatini va hosildorligini oshirishda muhim rol o'ynaydi.  Misol  uchun,  yangi  poliploid makkajo'xori  yoki  bug'doy  turlari  o'zlarining yuqori  hosil  ko'rsatkichlari  bilan  qishloq xo'jalida ommalashmoqda.

O'zbek  olimlari  tomonidan  olib  borilgan tadqiqotlar  go'zani  genetik  yaxshilashda sezilarli  yutuqlarga  erishdi.  Poliploidiya  va turlararo  duragaylash  orqali  hosilni  oshirish, kasalliklarga chidamlilikni ta'minlash va yangi navlar yaratish mumkin. Bu yutuqlar qishloq xo'jaligi  uchun  muhim  va  ularni  amalga oshirishda  zamonaviy  biotexnologiyalarni qo'llash zarur. Kelajakda  O'zbekistonda  go'zada poliploidiya  va  turlararo  duragaylashning ahamiyati yanada ortadi.  Zamonaviy genetika va biotexnologiyalar yordamida  yangi navlar yaratish,  hosil  va  sifat  ko'rsatkichlarini oshirishda  qo'shimcha  imkoniyatlar  paydo bo'ladi.  Bunday  yondashuvlar  O'zbekiston qishloq xo'jaligi uchun barqaror rivojlanish va raqobatbardoshlikni ta'minlaydi.

In this article, the treatment of patients with phenylketonuria is continuous and consists of following a strict diet from the moment of diagnosis. The complete elimination of phenylalanine from the diet and the compensation of amino acid deficiency with the help of special dietary supplements allow maintaining normal metabolism in the body. In the article, the causes, consequences, types, treatment methods, physical therapy of the disease; diet for phenylketonuria is given.

This article describes the specific aspects of phenylketonuria. Phenylketonuria is a rare genetic disorder that most people have never heard of. But for those who encounter it, it can change their entire lives. Imagine that you cannot eat regularly because your body cannot cope with the breakdown of a certain protein. Sounds like science fiction? Unfortunately, this is a harsh reality for some people. But don't be discouraged! Medicine does not stand still, and modern approaches to the treatment of phenylketonuria offer hope to many patients.

Hozirgi vaqtda butun dunyo bo’ylab leykemiya-oq qon kasalligini davolash hamda inson umrini uzaytirishga qaratilgan ilmiy izlanishlar jadal miqyosda olib borilmoqda.Rivojlangan mamlakatlardagi leykemiya turiga qarab besh yil ichida omon qolish darajasi 60% yoki hatto 90% dan oshadi. Bemorlarning besh yildan keyin butunlay tuzalib ketishi deyarli kuzatilmagan. 2015-yilda leykemiya butun dunyo boʻylab 2,3 million odamda aniqlangan va shulardan 353500 bemorning oʻlimi bilan yakun topgan. Koreyanining Ulsan Milliy Fan va Texnologiyalar Universiteti tadqiqot guruhi olimlari o'tkir miyeloid leykemiyani  samarali davolovchi nano zarrachalarni ishlab chiqdi, bu esa bevosita leykemiya hujayralarini tanlab yo'q qilish orqali terapevtik samaradorlikni oshirish va yon ta'sirlarni kamaytirish imkoniyatini beradi.

O`quv masalalari tizimida alohida o`rinni hisoblash masalalari - ob`ektlarni sifat jihatidan tahlil qilishni va ularning miqdoriy tavsifini va o`zgartirishni talab qiladigan masalalar egallaydi. Boshqa o`quv masalalari orasida ularning ulushi ortib bormoqda. Va bu, ehtimol, nafaqat olingan bilimlarning amaliy jihatini mustahkamlash, balki matematika yordamida yangi bilim sohalarini rivojlantirish bilan ham bog`liq.