Obusier de 15 cm Valée allowing the whole artillery train to move as fast as the infantry or cavalry. Valée also improved the guns themselves slightly, by making them lighter, and with a longer range. The complete Valée system consisted in siege guns of 24 and 16 inches, and field guns of 12 and 8 inches. It also included field howitzers of 24 and 6 inches, and a siege howitzer of 8 inches. Mountain artillery pieces were of 12 inches caliber. Mortars were of 12, 10 and 8 inches, with a 15 inches stone mortar. French artillery would be reorganized along the Valee system in
Hair follicle to the DNA damage in the hair follicle stem cells. Proteolysis of collagen leads to elimination of the damaged cells and then to terminal hair follicle miniaturization. Hair grows in cycles of various phases: anagen is the growth phase; catagen is the involuting or regressing phase; and telogen, the resting or quiescent phase (names derived using the Greek prefixes ana-, kata-, and telos- meaning up, down, and end respectively). Each phase has several morphologically and histologically distinguishable sub-phases. Prior to the start of cycling is a phase of follicular morphogenesis (formation of the follicle). There is also a shedding phase,